Fragment error occurs while including a particular java file in Manifest

Fragment error occurs while including a particular java file in Manifest - java

My app get stops while including particular java class in manifest.xml and the logcat shows error in fragment.If i remove those classes from manifest.xml the app is running successfully.On the other side remaining java classes working properly and there is no error in the fragment.I don't know why the app gets stopped for the particular java files
This is the error shown by logcat while including that particular java class
10-05 10:46:31.617 12820-12820/com.sentientit.theiWedplanner E/AndroidRuntime﹕ FATAL EXCEPTION: main
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.sentientit.theiWedplanner/com.sentientit.theiWedplanner.Frontpage}: android.view.InflateException: Binary XML file line #9: Error inflating class fragment
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2245)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2295)
at android.app.ActivityThread.access$700(ActivityThread.java:150)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1280)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:175)
at android.app.ActivityThread.main(ActivityThread.java:5279)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869)
at dalvik.system.NativeStart.main(Native Method)
Caused by: android.view.InflateException: Binary XML file line #9: Error inflating class fragment
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:710)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:752)
at android.view.LayoutInflater.inflate(LayoutInflater.java:495)
at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:350)
at android.app.Activity.setContentView(Activity.java:1930)
at com.sentientit.theiWedplanner.Frontpage.onCreate(Frontpage.java:41)
at android.app.Activity.performCreate(Activity.java:5283)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1097)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2209)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2295)
            at android.app.ActivityThread.access$700(ActivityThread.java:150)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1280)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:175)
            at android.app.ActivityThread.main(ActivityThread.java:5279)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:511)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869)
            at dalvik.system.NativeStart.main(Native Method)
Caused by: android.app.Fragment$InstantiationException: Unable to instantiate fragment com.sentientit.theiWedplanner.Fragadmob: make sure class name exists, is public, and has an empty constructor that is public
at android.app.Fragment.instantiate(Fragment.java:592)
at android.app.Fragment.instantiate(Fragment.java:560)
at android.app.Activity.onCreateView(Activity.java:4864)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:686)
            at android.view.LayoutInflater.rInflate(LayoutInflater.java:752)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:495)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
            at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:350)
            at android.app.Activity.setContentView(Activity.java:1930)
            at com.sentientit.theiWedplanner.Frontpage.onCreate(Frontpage.java:41)
            at android.app.Activity.performCreate(Activity.java:5283)
            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1097)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2209)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2295)
            at android.app.ActivityThread.access$700(ActivityThread.java:150)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1280)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:175)
            at android.app.ActivityThread.main(ActivityThread.java:5279)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:511)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869)
            at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.sentientit.theiWedplanner.Fragadmob" on path: /system/framework/com.google.android.maps.jar:/data/app/com.sentientit.theiWedplanner-1.apk
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:65)
at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
at android.app.Fragment.instantiate(Fragment.java:582)
            at android.app.Fragment.instantiate(Fragment.java:560)
            at android.app.Activity.onCreateView(Activity.java:4864)
            at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:686)
            at android.view.LayoutInflater.rInflate(LayoutInflater.java:752)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:495)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
            at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:350)
            at android.app.Activity.setContentView(Activity.java:1930)
            at com.sentientit.theiWedplanner.Frontpage.onCreate(Frontpage.java:41)
            at android.app.Activity.performCreate(Activity.java:5283)
            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1097)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2209)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2295)
            at android.app.ActivityThread.access$700(ActivityThread.java:150)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1280)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:175)
            at android.app.ActivityThread.main(ActivityThread.java:5279)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:511)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869)
            at dalvik.system.NativeStart.main(Native Method)
10-05 10:46:40.273 12820-12824/com.sentientit.theiWedplanner D/dalvikvm﹕ GC_CONCURRENT freed 413K, 28% free 6025K/8348K, paused 4ms+2ms, total 36ms
front.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#FFFFFF">
<fragment
android:id="#+id/adview153613"
android:name="com.sentientit.theiWedplanner.Fragadmob"
android:layout_width="match_parent"
android:layout_height="wrap_content"
tools:layout="#layout/fragadmob" />
<RelativeLayout
android:id="#+id/fron"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<TextView
android:id="#+id/textView2"
android:layout_width="fill_parent"
android:layout_height="50px"
android:background="#003399"
android:gravity="center"
android:text="iWedPlanner"
android:textSize="20sp"
android:textStyle="bold"
android:typeface="serif" />
<ImageView
android:id="#+id/cl"
android:layout_width="match_parent"
android:layout_height="600dp"
android:layout_alignParentLeft="true"
android:layout_below="#+id/textView1"
android:src="#drawable/ilogo" />
<TextView
android:id="#+id/textView1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="#+id/textView2"
android:layout_marginTop="23dp"
android:gravity="center"
android:text="Welcome to iWedPlanner"
android:textColor="#FF9933"
android:textSize="20sp"
android:textStyle="italic"
android:typeface="serif" />
<TextView
android:id="#+id/textView3"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignBottom="#+id/cl"
android:layout_alignParentLeft="true"
android:gravity="center"
android:text="Your Guide to fun and flawless wedding planning"
android:textColor="#FFFF0000"
android:textStyle="italic"
android:typeface="serif" />
<ImageButton
android:id="#+id/click"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/cl"
android:layout_centerHorizontal="true"
android:layout_marginTop="40dp"
android:background="#FFFFFF"
android:src="#drawable/ib" />
</RelativeLayout>
</LinearLayout>
fragadmob.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:ads="http://schemas.android.com/apk/res-auto"
android:id="#+id/adview153613"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#drawable/aagr_background2" >
<ImageView
android:id="#+id/image123"
android:layout_width="fill_parent"
android:layout_height="50dp"
android:src="#drawable/adview1536132" />
<com.google.android.gms.ads.AdView
android:id="#+id/adView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
ads:adSize="SMART_BANNER"
ads:adUnitId="XXXXXXXXXXXXXXXXXXXXXXXXXXX"
/>
<ImageView
android:id="#+id/addviewimage1"
android:layout_width="31dp"
android:layout_height="31dp"
android:layout_alignParentRight="true"
android:layout_marginRight="23dp"
android:src="#drawable/close" />
</RelativeLayout>
frontpage.java
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.RelativeLayout;
import com.bugsense.trace.BugSenseHandler;
public class Frontpage extends FragmentActivity {
/** Called when the activity is first created. */
SharedPreferences sharedPreferences;
#Override
public void onStart() {
super.onStart();
// The rest of your onStart() code.
// // EasyTracker.getInstance(this).activityStart(this); // Add this method.
}
#Override
public void onStop() {
super.onStop();
// The rest of your onStop() code.
// EasyTracker.getInstance(this).activityStop(this); // Add this method.
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState); BugSenseHandler.initAndStartSession(this, "68640bea");
//requestWindowFeature(Window.FEATURE_CUSTOM_TITLE);
setContentView(R.layout.front);
RelativeLayout clic =(RelativeLayout)findViewById(R.id.fron);
clic.setOnClickListener(new OnClickListener() {
//#Override
#Override
public void onClick(View v)
{
// TODO Auto-generated method stub
Intent intent=new Intent(Frontpage.this,welcomeuser1.class);
//Intent intent=new Intent(Frontpage.this,ZXingJarDemoActivity.class);
startActivity(intent);
finish();
}
});
}
}
fragadmob.java
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.res.Configuration;
import android.net.Uri;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.RelativeLayout;
import com.google.android.gms.ads.AdRequest;
import com.google.android.gms.ads.AdView;
public class Fragadmob extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragadmob, container, false);
//Admob
RelativeLayout gonad=(RelativeLayout)rootView.findViewById(R.id.adview153613);
ImageView addviewimage=(ImageView)rootView.findViewById(R.id.image123);
ImageView inap=(ImageView)rootView.findViewById(R.id.addviewimage1);
// AdView adView = new AdView(getActivity());
AdView adView = (AdView)rootView.findViewById(R.id.adView);
AdRequest adRequest = new AdRequest.Builder().build();
adView.loadAd(adRequest);
if(addviewimage.getResources().getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE)
{
addviewimage.getLayoutParams().height = 30;
// code to do for Portrait Mode
}
return rootView;
}
}

You never need to add fragments to your manifest. your logcat showing ClassNotFoundException: Didn't find class "com.sentientit.theiWedplanner.Fragadmob" but Fragadmob extends Fragment so u trying to adding fragment in manifast so make sure once and enjoy coding.

Related

Error inflating class <unknown> When start with ADB device, but run on VB all fine

Whenever I run app android application on my tablet, connected with ADB (USB and developers mode in android). In Tablet show message "Unfortunalty stopped". But when i run application on Android-x86 virual device (Virtual box) all fine.
Where is the mistake?
ADT (Logcat) logs says:
02-10 12:52:39.310 3897-3897/com.test E/AndroidRuntime﹕ FATAL EXCEPTION: main
android.view.InflateException: Binary XML file line #22: Error inflating class <unknown>
at android.view.LayoutInflater.createView(LayoutInflater.java:613)
at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56)
at android.view.LayoutInflater.onCreateView(LayoutInflater.java:660)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:685)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:746)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:749)
at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
at android.view.LayoutInflater.inflate(LayoutInflater.java:352)
at com.test.PageSplash.onCreateView(PageSplash.java:17)
at android.app.Fragment.performCreateView(Fragment.java:1695)
at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:885)
at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1057)
at android.app.BackStackRecord.run(BackStackRecord.java:694)
at android.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1435)
at android.app.FragmentManagerImpl$1.run(FragmentManager.java:441)
at android.os.Handler.handleCallback(Handler.java:725)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:153)
at android.app.ActivityThread.main(ActivityThread.java:5299)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:833)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Constructor.constructNative(Native Method)
at java.lang.reflect.Constructor.newInstance(Constructor.java:417)
at android.view.LayoutInflater.createView(LayoutInflater.java:587)
            at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56)
            at android.view.LayoutInflater.onCreateView(LayoutInflater.java:660)
            at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:685)
            at android.view.LayoutInflater.rInflate(LayoutInflater.java:746)
            at android.view.LayoutInflater.rInflate(LayoutInflater.java:749)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:352)
            at com.test.PageSplash.onCreateView(PageSplash.java:17)
            at android.app.Fragment.performCreateView(Fragment.java:1695)
            at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:885)
            at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1057)
            at android.app.BackStackRecord.run(BackStackRecord.java:694)
            at android.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1435)
            at android.app.FragmentManagerImpl$1.run(FragmentManager.java:441)
            at android.os.Handler.handleCallback(Handler.java:725)
            at android.os.Handler.dispatchMessage(Handler.java:92)
            at android.os.Looper.loop(Looper.java:153)
            at android.app.ActivityThread.main(ActivityThread.java:5299)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:511)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:833)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
            at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ArrayIndexOutOfBoundsException: length=25; index=959
at android.content.res.StringBlock.get(StringBlock.java:64)
at android.content.res.XmlBlock$Parser.getPooledString(XmlBlock.java:458)
at android.content.res.TypedArray.loadStringValueAt(TypedArray.java:720)
at android.content.res.TypedArray.getString(TypedArray.java:124)
at android.widget.TextView.<init>(TextView.java:971)
at android.widget.Button.<init>(Button.java:107)
at android.widget.Button.<init>(Button.java:103)
            at java.lang.reflect.Constructor.constructNative(Native Method)
            at java.lang.reflect.Constructor.newInstance(Constructor.java:417)
            at android.view.LayoutInflater.createView(LayoutInflater.java:587)
            at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56)
            at android.view.LayoutInflater.onCreateView(LayoutInflater.java:660)
            at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:685)
            at android.view.LayoutInflater.rInflate(LayoutInflater.java:746)
            at android.view.LayoutInflater.rInflate(LayoutInflater.java:749)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:352)
            at com.test.PageSplash.onCreateView(PageSplash.java:17)
            at android.app.Fragment.performCreateView(Fragment.java:1695)
            at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:885)
            at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1057)
            at android.app.BackStackRecord.run(BackStackRecord.java:694)
            at android.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1435)
            at android.app.FragmentManagerImpl$1.run(FragmentManager.java:441)
            at android.os.Handler.handleCallback(Handler.java:725)
            at android.os.Handler.dispatchMessage(Handler.java:92)
            at android.os.Looper.loop(Looper.java:153)
            at android.app.ActivityThread.main(ActivityThread.java:5299)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:511)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:833)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
            at dalvik.system.NativeStart.main(Native Method)
PageSplash xml
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" android:background="#color/white"
>
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent" android:gravity="center_horizontal" android:weightSum="1">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/imageView17" android:src="#drawable/splash_image"
android:layout_gravity="center_horizontal"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/welcome_to_test"
android:id="#+id/textView34" android:textColor="#404041" android:textSize="24sp"
android:layout_marginTop="40dp" android:layout_gravity="center_horizontal"/>
<Button
android:layout_width="220dp"
android:layout_height="wrap_content"
android:text="#string/login"
android:id="#+id/btn_login" android:textColor="#color/white" android:background="#drawable/splash_button"
style="#android:style/Widget.DeviceDefault.Button.Borderless.Small" android:layout_marginTop="34dp"
android:layout_gravity="center_horizontal" android:textAllCaps="true"/>
<Button
android:layout_width="220dp"
android:layout_height="wrap_content"
android:text="#string/continue_as_guest"
android:id="#+id/btn_guest" android:textColor="#color/white" android:background="#drawable/splash_button"
style="#android:style/Widget.DeviceDefault.Button.Borderless.Small" android:layout_marginTop="20dp"
android:layout_gravity="center_horizontal" android:textAllCaps="true"/>
<Button
android:layout_width="220dp"
android:layout_height="wrap_content"
android:text="#string/create_account"
android:id="#+id/btn_join" android:textColor="#color/white" android:background="#drawable/splash_button"
style="#android:style/Widget.DeviceDefault.Button.Borderless.Small" android:layout_marginTop="20dp"
android:layout_gravity="center_horizontal" android:textAllCaps="true"/>
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content" android:gravity="right" android:layout_marginTop="20dp">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/done"
android:id="#+id/btn_done" style="#android:style/Widget.DeviceDefault.Button.Borderless.Small"
android:textSize="#dimen/button" android:textColor="#color/main_blue"
android:textAllCaps="true" android:layout_marginRight="30dp"/>
</LinearLayout>
</LinearLayout>
</ScrollView>
PageSplash java
package com.test;
import android.app.Fragment;
import android.app.FragmentManager;
import android.app.FragmentTransaction;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.LinearLayout;
public class PageSplash extends Fragment{
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
{
View v = inflater.inflate(R.layout.page_splash, null);
Button btn_login = (Button) v.findViewById(R.id.btn_login);
if(btn_login != null)
{
btn_login.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Fragment login = new PageLogin();
FragmentTransaction ft = getFragmentManager().beginTransaction();
ft.replace(R.id.main_content, login);
ft.addToBackStack(null);
ft.commit();
}
});
}
Button btn_join = (Button) v.findViewById(R.id.btn_join);
if(btn_join != null)
{
btn_join.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Fragment join = new PageJoin();
FragmentTransaction ft = getFragmentManager().beginTransaction();
ft.replace(R.id.main_content, join);
ft.addToBackStack(null);
ft.commit();
}
});
}
Button btn_guest = (Button) v.findViewById(R.id.btn_guest);
btn_guest.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Fragment index = new PageIndex();
FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction ft = fragmentManager.beginTransaction();
ft.replace(R.id.main_content, index);
ft.addToBackStack(null);
ft.commit();
}
});
Button btn_done = (Button) v.findViewById(R.id.btn_done);
btn_done.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Fragment index = new PageIndex();
FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction ft = fragmentManager.beginTransaction();
ft.replace(R.id.main_content, index);
ft.addToBackStack(null);
ft.commit();
}
});
LinearLayout menu_bottom = (LinearLayout) getActivity().findViewById(R.id.menu_bottom);
menu_bottom.setVisibility(View.GONE);
return v;
}
public void onPause()
{
super.onPause();
LinearLayout menu_bottom = (LinearLayout) getActivity().findViewById(R.id.menu_bottom);
menu_bottom.setVisibility(View.VISIBLE);
}
}
Thanks alot

Apparently there seems to be some issue in
<Button
android:layout_width="220dp"
android:layout_height="wrap_content"
android:text="#string/login"
android:id="#+id/btn_login" android:textColor="#color/white" android:background="#drawable/splash_button"
style="#android:style/Widget.DeviceDefault.Button.Borderless.Small" android:layout_marginTop="34dp"
android:layout_gravity="center_horizontal" android:textAllCaps="true"/>
try to debug #android:style/Widget.DeviceDefault.Button.Borderless.Small

Unable to start activity ComponentInfo on Create()

I have a class login.java which i am running as main activity but when i run it the application suddenly stops and says following error. I have also pasted activity_login.xml and login.java. I am stuck here and can not understand what the issue is. Any suggestions please
Error
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.admin.funtube_mp4/com.example.admin.funtube_mp4.Login}: android.view.InflateException: Binary XML file line #2: Error inflating class <unknown>
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2404)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2464)
at android.app.ActivityThread.access$900(ActivityThread.java:172)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1308)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:146)
at android.app.ActivityThread.main(ActivityThread.java:5653)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1291)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1107)
at dalvik.system.NativeStart.main(Native Method)
Caused by: android.view.InflateException: Binary XML file line #2: Error inflating class <unknown>
at android.view.LayoutInflater.createView(LayoutInflater.java:626)
at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56)
at android.view.LayoutInflater.onCreateView(LayoutInflater.java:675)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:700)
at android.view.LayoutInflater.inflate(LayoutInflater.java:470)
at android.view.LayoutInflater.inflate(LayoutInflater.java:398)
at android.view.LayoutInflater.inflate(LayoutInflater.java:354)
at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:257)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:109)
at com.example.admin.funtube_mp4.Login.onCreate(Login.java:24)
at android.app.Activity.performCreate(Activity.java:5541)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1093)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2368)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2464)
            at android.app.ActivityThread.access$900(ActivityThread.java:172)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1308)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:146)
            at android.app.ActivityThread.main(ActivityThread.java:5653)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:515)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1291)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1107)
            at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Constructor.constructNative(Native Method)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at android.view.LayoutInflater.createView(LayoutInflater.java:600)
            at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56)
            at android.view.LayoutInflater.onCreateView(LayoutInflater.java:675)
            at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:700)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:470)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:398)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:354)
            at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:257)
            at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:109)
            at com.example.admin.funtube_mp4.Login.onCreate(Login.java:24)
            at android.app.Activity.performCreate(Activity.java:5541)
            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1093)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2368)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2464)
            at android.app.ActivityThread.access$900(ActivityThread.java:172)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1308)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:146)
            at android.app.ActivityThread.main(ActivityThread.java:5653)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:515)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1291)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1107)
            at dalvik.system.NativeStart.main(Native Method)
Caused by: android.content.res.Resources$NotFoundException: Resource is not a Drawable (color or path): TypedValue{t=0x1/d=0x7f0b0001 a=-1 r=0x7f0b0001}
at android.content.res.Resources.loadDrawable(Resources.java:3348)
at android.content.res.TypedArray.getDrawable(TypedArray.java:602)
at android.view.View.<init>(View.java:3715)
at android.view.ViewGroup.<init>(ViewGroup.java:480)
at android.widget.LinearLayout.<init>(LinearLayout.java:176)
at android.widget.LinearLayout.<init>(LinearLayout.java:172)
            at java.lang.reflect.Constructor.constructNative(Native Method)
            at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
            at android.view.LayoutInflater.createView(LayoutInflater.java:600)
            at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56)
            at android.view.LayoutInflater.onCreateView(LayoutInflater.java:675)
            at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:700)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:470)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:398)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:354)
            at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:257)
            at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:109)
            at com.example.admin.funtube_mp4.Login.onCreate(Login.java:24)
            at android.app.Activity.performCreate(Activity.java:5541)
            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1093)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2368)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2464)
            at android.app.ActivityThread.access$900(ActivityThread.java:172)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1308)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:146)
            at android.app.ActivityThread.main(ActivityThread.java:5653)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:515)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1291)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1107)
            at dalvik.system.NativeStart.main(Native Method)
activity_login.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#color/bg_login"
android:gravity="center"
android:orientation="vertical"
android:padding="10dp" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:orientation="vertical"
android:paddingLeft="20dp"
android:paddingRight="20dp" >
<EditText
android:id="#+id/email"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="10dp"
android:background="#color/white"
android:hint="#string/hint_email"
android:inputType="textEmailAddress"
android:padding="10dp"
android:singleLine="true"
android:textColor="#color/input_login"
android:textColorHint="#color/input_login_hint" />
<EditText
android:id="#+id/password"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="10dp"
android:background="#color/white"
android:hint="#string/hint_password"
android:inputType="textPassword"
android:padding="10dp"
android:singleLine="true"
android:textColor="#color/input_login"
android:textColorHint="#color/input_login_hint" />
<!-- Login Button -->
<Button
android:id="#+id/btnLogin"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="20dip"
android:background="#color/btn_login_bg"
android:text="#string/btn_login"
android:textColor="#color/btn_login" />
<!-- Link to Login Screen -->
<Button
android:id="#+id/btnLinkToRegisterScreen"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="40dip"
android:background="#null"
android:text="#string/btn_link_to_register"
android:textAllCaps="false"
android:textColor="#color/white"
android:textSize="15dp" />
</LinearLayout>
</LinearLayout>
login.java
package com.example.admin.funtube_mp4;
import android.app.AlertDialog;
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
public class Login extends AppCompatActivity {
private FunTubeOperations FunTubeDBOperations;
private DatabaseWrapper db;
private SessionManager session;
public static String UserName;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
final AlertDialog ad = new AlertDialog.Builder(this).create();
Button login = (Button) findViewById(R.id.btnLogin);
Button reg = (Button) findViewById(R.id.btnLinkToRegisterScreen);
FunTubeDBOperations = new FunTubeOperations(this);
FunTubeDBOperations.open();
db = new DatabaseWrapper(getApplicationContext());
// Session manager
session = new SessionManager(getApplicationContext());
// Check if user is already logged in or not
if (session.isLoggedIn()) {
// User is already logged in. Take him to main activity
Intent intent = new Intent(Login.this, Main.class);
// session.setname(UserName);
String n=session.getdata();
//session.pref.getString(USER_NAME,UserName);
intent.putExtra("name", n);
startActivity(intent);
finish();
}
reg.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View arg0) {
Intent intent = new Intent(Login.this, register.class);
startActivity(intent);
finish();
}
});
try {
login.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View arg0) {
EditText email = (EditText) findViewById(R.id.email);
EditText password = (EditText) findViewById(R.id.password);
if (email != null && password !=null) {
String em=email.getText().toString();
String pwd=password.getText().toString();
UserName= FunTubeDBOperations.loginUsers(em, pwd);
if(UserName!=null)
{
session.setLogin(true);
session.setname(UserName);
Toast.makeText(getApplicationContext(), "Login successfully!!", Toast.LENGTH_LONG).show();
Intent intent = new Intent(Login.this, Main.class);
intent.putExtra("name", UserName);
startActivity(intent);
finish();
}
else
{
Toast.makeText(getApplicationContext(), "Invalid information provided!! Check your credentials or Sign up account!!", Toast.LENGTH_LONG).show();
}
}
else {
Toast.makeText(getApplicationContext(), "Fill all the fields!!", Toast.LENGTH_LONG).show();
}
}
});
} catch (Exception er) {
ad.setMessage(er.toString());
}
}
}
colors.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<color name="bg_login">#26AE90</color>
<color name="bg_register">#2E3237</color>
<color name="bg_main">#428BCA</color>
<color name="white">#FFFFFF</color>
<color name="input_login">#222222</color>
<color name="input_login_hint">#999999</color>
<color name="input_register">#888888</color>
<color name="input_register_bg">#3B4148</color>
<color name="input_register_hint">#5E6266</color>
<color name="btn_login">#26AE90</color>
<color name="btn_login_bg">#ECEEF1</color>
<color name="lbl_name">#333333</color>
<color name="btn_logut_bg">#FF6861</color>
<color name="view_background">#E8ECfA</color>
<color name="btn_bg">#277BEC</color>
<color name="txt_font">#4E5572</color>
<color name="action_bar">#1F2649</color>
</resources>

App keeps crashing, programmed in android studio

package kdev.circles;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final EditText ca = (EditText)findViewById(R.id.ca);
final EditText cp = (EditText)findViewById(R.id.cp);
final EditText sv = (EditText)findViewById(R.id.sv);
final EditText r = (EditText)findViewById(R.id.radius);
final TextView log = (TextView)findViewById(R.id.log);
Button clear = (Button)findViewById(R.id.clear);
Button solve = (Button)findViewById(R.id.Solve);
clear.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
ca.setText("");
cp.setText("");
sv.setText("");
r.setText("");
}
});
solve.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
if((r.toString()).equals("")) {
log.setText(log.getText() + "\n" + "error, no value entered");
}else{
sv.setText(String.valueOf(Double.valueOf(String.valueOf(r.getText())) * Double.valueOf(String.valueOf(r.getText())) * Double.valueOf(String.valueOf(r.getText())) * 4 / 3 * 3.14159265));
cp.setText(String.valueOf(Double.valueOf(String.valueOf(r.getText()))*3.14159265*2));
ca.setText(String.valueOf(Double.valueOf(String.valueOf(r.getText()))*Double.valueOf(String.valueOf(r.getText()))*3.14159265));
log.setText(log.getText()+"\n"+"ca"+ca.getText()+"\n"+"sv"+sv.getText()+"\n"+"cp"+cp.getText());
}
}
});
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
xml file:
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Solve"
android:id="#+id/Solve"
android:width="100dp"
android:layout_alignParentBottom="true"
android:layout_alignEnd="#+id/sv" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:inputType="numberDecimal"
android:ems="10"
android:id="#+id/radius"
android:layout_alignParentTop="true"
android:layout_alignStart="#+id/editText" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:inputType="numberDecimal"
android:ems="10"
android:id="#+id/editText"
android:layout_alignParentTop="true"
android:layout_alignParentEnd="true"
android:layout_marginTop="49dp" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:inputType="numberDecimal"
android:ems="10"
android:id="#+id/editText2"
android:layout_below="#+id/editText"
android:layout_alignStart="#+id/editText" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:inputType="numberDecimal"
android:ems="10"
android:id="#+id/editText3"
android:layout_below="#+id/editText2"
android:layout_alignStart="#+id/editText2" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="circle&apos;s perimeter"
android:id="#+id/cp"
android:layout_above="#+id/editText2"
android:layout_alignParentStart="true" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="circle&apos;s area"
android:id="#+id/ca"
android:layout_above="#+id/editText3"
android:layout_alignParentStart="true" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="sphere&apos;s volume"
android:id="#+id/sv"
android:layout_alignBottom="#+id/editText3"
android:layout_alignParentStart="true" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="radius"
android:id="#+id/textView3"
android:layout_alignBottom="#+id/radius"
android:layout_alignParentStart="true" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="clear"
android:id="#+id/clear"
android:layout_alignBottom="#+id/Solve"
android:layout_alignStart="#+id/editText3" />
<TextView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Large Text"
android:id="#+id/log"
android:layout_below="#+id/editText3"
android:layout_centerHorizontal="true"
android:layout_marginTop="57dp" />
Everything is working fine till i try opening it, i couldn't find the error, because my android virtual device wasn't connected to android studio properly. I am not sure what i should do. I did have another problem before but i realised that it was due to me using the findviewbyid function before the whole layout was loaded. I have solved that problem and tried a few different techniques to solve this problem but nothing worked.
When i try and run the app it just crashes, i am not sure why?
Any help will be usefull, thank you.
this is the logcat:
12-10 15:21:18.030 1907-1907/kdev.circles W/art﹕ Verification of java.lang.CharSequence android.support.v7.widget.ResourcesWrapper.getQuantityText(int, int) took 123.881364ms
12-10 15:21:18.520 1907-1907/kdev.circles D/AndroidRuntime﹕ Shutting down VM
12-10 15:21:18.520 1907-1907/kdev.circles E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: kdev.circles, PID: 1907
java.lang.RuntimeException: Unable to start activity ComponentInfo{kdev.circles/kdev.circles.MainActivity}: java.lang.ClassCastException: android.support.v7.widget.AppCompatTextView cannot be cast to android.widget.EditText
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2195)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
at android.app.ActivityThread.access$800(ActivityThread.java:135)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5017)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
Caused by: java.lang.ClassCastException: android.support.v7.widget.AppCompatTextView cannot be cast to android.widget.EditText
at kdev.circles.MainActivity.onCreate(MainActivity.java:21)
at android.app.Activity.performCreate(Activity.java:5231)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
            at android.app.ActivityThread.access$800(ActivityThread.java:135)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:136)
            at android.app.ActivityThread.main(ActivityThread.java:5017)
            at java.lang.reflect.Method.invoke(Native Method)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
12-10 15:21:27.230 1907-1907/kdev.circles I/Process﹕ Sending signal. PID: 1907 SIG: 9
12-10 15:21:31.360 2153-2153/kdev.circles D/AndroidRuntime﹕ Shutting down VM
12-10 15:21:31.360 2153-2153/kdev.circles E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: kdev.circles, PID: 2153
java.lang.RuntimeException: Unable to start activity ComponentInfo{kdev.circles/kdev.circles.MainActivity}: java.lang.ClassCastException: android.support.v7.widget.AppCompatTextView cannot be cast to android.widget.EditText
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2195)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
at android.app.ActivityThread.access$800(ActivityThread.java:135)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5017)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
Caused by: java.lang.ClassCastException: android.support.v7.widget.AppCompatTextView cannot be cast to android.widget.EditText
at kdev.circles.MainActivity.onCreate(MainActivity.java:21)
at android.app.Activity.performCreate(Activity.java:5231)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
            at android.app.ActivityThread.access$800(ActivityThread.java:135)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:136)
            at android.app.ActivityThread.main(ActivityThread.java:5017)
            at java.lang.reflect.Method.invoke(Native Method)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)

Check your view types in Java code and their matching id's in xml. They have to be of same type.
You have EditText in Java, but matching view id in xml is TextView
For instance:
final EditText ca = (EditText)findViewById(R.id.ca);
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="circle&apos;s area"
android:id="#+id/ca"
android:layout_above="#+id/editText3"
android:layout_alignParentStart="true" />

Android app crashes after rotating from LANDSCAPE to PORTRAIT

I'm building my first Android app and I've consulted quite some tutorials and stackoverflow posts, but I can't seem to find the proper fix for this problem.
I've been following YouTube tutorials from TheNewBoston and Derek Banas, as well as some written tutorials.
My app runs as it should when starting the app (being in Portrait mode). When I swap it to landscape, it still works fine. However when I rotate it back to portrait, the app crashes with the following error:
04-12 23:42:12.331 28004-28004/nl.avans.mbd2.android.gideon.van.david.multipanefragment E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: nl.avans.mbd2.android.gideon.van.david.multipanefragment, PID: 28004
java.lang.RuntimeException: Unable to start activity ComponentInfo{nl.avans.mbd2.android.gideon.van.david.multipanefragment/nl.avans.mbd2.android.gideon.van.david.multipanefragment.MainActivity}: android.view.InflateException: Binary XML file line #9: Error inflating class fragment
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2413)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2471)
at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:4054)
at android.app.ActivityThread.access$1000(ActivityThread.java:175)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1314)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:146)
at android.app.ActivityThread.main(ActivityThread.java:5602)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1283)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1099)
at dalvik.system.NativeStart.main(Native Method)
Caused by: android.view.InflateException: Binary XML file line #9: Error inflating class fragment
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:719)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:761)
at android.view.LayoutInflater.inflate(LayoutInflater.java:498)
at android.view.LayoutInflater.inflate(LayoutInflater.java:398)
at android.view.LayoutInflater.inflate(LayoutInflater.java:354)
at android.support.v7.app.ActionBarActivityDelegateBase.setContentView(ActionBarActivityDelegateBase.java:240)
at android.support.v7.app.ActionBarActivity.setContentView(ActionBarActivity.java:102)
at nl.avans.mbd2.android.gideon.van.david.multipanefragment.MainActivity.onCreate(MainActivity.java:18)
at android.app.Activity.performCreate(Activity.java:5451)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1093)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2377)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2471)
            at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:4054)
            at android.app.ActivityThread.access$1000(ActivityThread.java:175)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1314)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:146)
            at android.app.ActivityThread.main(ActivityThread.java:5602)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:515)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1283)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1099)
            at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.IllegalStateException: Fragment nl.avans.mbd2.android.gideon.van.david.multipanefragment.MainPanelFragment did not create a view.
at android.app.Activity.onCreateView(Activity.java:5020)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:695)
            at android.view.LayoutInflater.rInflate(LayoutInflater.java:761)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:498)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:398)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:354)
            at android.support.v7.app.ActionBarActivityDelegateBase.setContentView(ActionBarActivityDelegateBase.java:240)
            at android.support.v7.app.ActionBarActivity.setContentView(ActionBarActivity.java:102)
            at nl.avans.mbd2.android.gideon.van.david.multipanefragment.MainActivity.onCreate(MainActivity.java:18)
            at android.app.Activity.performCreate(Activity.java:5451)
            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1093)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2377)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2471)
            at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:4054)
            at android.app.ActivityThread.access$1000(ActivityThread.java:175)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1314)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:146)
            at android.app.ActivityThread.main(ActivityThread.java:5602)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:515)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1283)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1099)
            at dalvik.system.NativeStart.main(Native Method)
The actual error being:
java.lang.RuntimeException: Unable to start activity ComponentInfo{nl.avans.mbd2.android.gideon.van.david.multipanefragment/nl.avans.mbd2.android.gideon.van.david.multipanefragment.MainActivity}: android.view.InflateException: Binary XML file line #9: Error inflating class fragment
Caused by: android.view.InflateException: Binary XML file line #9: Error inflating class fragment
Caused by: java.lang.IllegalStateException: Fragment nl.avans.mbd2.android.gideon.van.david.multipanefragment.MainPanelFragment did not create a view.
My MainActivity looks like this:
public class MainActivity extends ActionBarActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
int screenOrientation = getResources().getConfiguration().orientation;
if (screenOrientation == Configuration.ORIENTATION_PORTRAIT) {
hideSidePanel();
}
}
private void hideSidePanel() {
View detailPane = findViewById(R.id.detail_panel);
if(detailPane.getVisibility() == View.VISIBLE) {
detailPane.setVisibility(View.GONE);
}
}
}
MainPanelFragment:
public class MainPanelFragment extends ListFragment {
boolean orientation;
int currentListViewItem;
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
ArrayAdapter<String> connectArrayToListView = new ArrayAdapter<String>(getActivity(), android.R.layout.simple_list_item_activated_1, API.dummyData);
setListAdapter(connectArrayToListView);
orientation = getResources().getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE;
if (savedInstanceState != null) {
currentListViewItem = savedInstanceState.getInt("curChoice", 0);
}
if (orientation) {
getListView().setChoiceMode(ListView.CHOICE_MODE_SINGLE);
showDetails(currentListViewItem);
}
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
super.onCreateView(inflater, container, savedInstanceState);
return inflater.inflate(R.layout.fragment_main_panel, container, false);
}
#Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putInt("curChoice", currentListViewItem);
}
#Override
public void onListItemClick(ListView l, View v, int position, long id) {
showDetails(position);
// super.onListItemClick(l, v, position, id);
}
void showDetails(int kaart) {
currentListViewItem = kaart;
if (orientation) {
getListView().setItemChecked(kaart, true);
DetailPanelFragment details = (DetailPanelFragment) getFragmentManager().findFragmentById(R.id.detail_panel);
if (details == null || details.getShowIndex() == -1) {
details = DetailPanelFragment.newInstance(kaart);
FragmentTransaction ft = getFragmentManager().beginTransaction();
ft.replace(R.id.main_panel, details);
ft.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE);
ft.commit();
}
} else {
Intent intent = new Intent();
intent.setClass(getActivity(), DetailsActivity.class);
intent.putExtra("index", kaart);
startActivity(intent);
}
}
}
activity_main.xml:
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:animateLayoutChanges="true"
tools:context=".MainActivity">
<fragment
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="2"
android:id="#+id/main_panel"
android:layout_alignParentRight="true"
class="nl.avans.mbd2.android.gideon.van.david.multipanefragment.MainPanelFragment"/>
<fragment
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:id="#+id/detail_panel"
android:layout_alignParentLeft="true"
class="nl.avans.mbd2.android.gideon.van.david.multipanefragment.DetailPanelFragment"/>
</LinearLayout>
fragment_detail_panel.xml:
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#android:color/holo_blue_bright"
android:layout_gravity="top|center"
android:orientation="vertical">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Detail panel"
android:textColor="#android:color/white"
android:textStyle="bold"
android:id="#+id/kaartenListViewDetail"
/>
</LinearLayout>
fragment_main_panel.xml:
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#android:color/holo_red_dark"
android:layout_gravity="top|center"
android:orientation="vertical">
<ListView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#android:id/list">
</ListView>
</LinearLayout>
I also have a folder in /res named layout-land. It contains an activity_main.xml file which is exactly identical to the one posted above.
I've seen similiar questions like this one but it seems that this situation is not (enough) the same to find a valid answer.

Android application keep crashing

in the last few days I tried to develop android applications with no success, for some reason my application keep crashing.
the application keeps throwing few exceptions that I didn't succeeded to handle with.
MainActivity.java :
package com.mobIce.digicoin.digitalcoin;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.ActionBar;
import android.support.v4.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.os.Build;
import android.widget.ArrayAdapter;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.TextView;
import java.util.ArrayList;
import java.util.List;
public class MainActivity extends ActionBarActivity {
private List<Coin> coins;
public MainActivity(){
coins = new ArrayList<Coin>();
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
if (savedInstanceState == null) {
getSupportFragmentManager().beginTransaction()
.add(R.id.container, new PlaceholderFragment())
.commit();
populateCoins();
populateListView();
}
}
private void populateCoins() {
coins.add(new Coin("Bitcoin", "650", "4", "http://coinmarketcap.com/img/Bitcoin.png"));
coins.add(new Coin("Dogecoin", "100", "400", "http://coinmarketcap.com/img/Bitcoin.png"));
coins.add(new Coin("fafaf", "8065", "400", "http://coinmarketcap.com/img/Bitcoin.png"));
}
private void populateListView() {
ArrayAdapter<Coin> adapter = new MyListAdapter();
ListView list = (ListView) findViewById(R.id.coinsListView);
list.setAdapter(adapter);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
/**
* A placeholder fragment containing a simple view.
*/
public static class PlaceholderFragment extends Fragment {
public PlaceholderFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container, false);
return rootView;
}
}
private class MyListAdapter extends ArrayAdapter<Coin> {
public MyListAdapter()
{
super(MainActivity.this, R.layout.coin_layout, coins);
}
#Override
public View getView(int position, View convertView, ViewGroup parent){
View itemView = convertView;
if(itemView == null)
itemView = getLayoutInflater().inflate(R.layout.coin_layout, parent, false);
//find the coin to work with.
Coin currentCoin = coins.get(position);
//fill the view
try{
TextView coinName = (TextView) itemView.findViewById(R.id.coinName);
coinName.setText(currentCoin.getName());
TextView coinPrice = (TextView) itemView.findViewById(R.id.coinPrice);
coinPrice.setText(currentCoin.getPrice());
TextView coinPercentage = (TextView) itemView.findViewById(R.id.coinPercentage);
coinPercentage.setText(currentCoin.getPercentage());
}
catch (NullPointerException e){ }
return itemView;
}
}
}
activity_main.xml:
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.mobIce.digicoin.digitalcoin.MainActivity"
tools:ignore="MergeRootFrame" />
fragment_main.xml:
<LinearLayout
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
xmlns:android="http://schemas.android.com/apk/res/android">
<ListView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/coinsListView"
android:paddingLeft="30dp" />
</LinearLayout>
coin_layout.xml:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent" android:layout_height="match_parent"
android:padding="8dp">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="coinName"
android:id="#+id/coinName"
android:layout_alignParentTop="true"
android:layout_toRightOf="#+id/coinIcon"
android:layout_marginTop="35dp"
android:layout_marginLeft="20dp" />
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/coinIcon"
android:maxHeight="80dp"
android:maxWidth="80dp"
android:minHeight="80dp"
android:minWidth="80dp"
android:src="#drawable/dogecoin"
android:longClickable="false"
android:focusable="false"
android:focusableInTouchMode="false"
android:baselineAlignBottom="false"
android:clickable="false"
android:adjustViewBounds="true"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Large Text"
android:id="#+id/coinPrice"
android:layout_marginLeft="35dp"
android:layout_alignTop="#+id/coinIcon"
android:layout_toRightOf="#+id/coinName"
android:layout_marginTop="25dp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="Medium Text"
android:id="#+id/coinPercentage"
android:layout_below="#+id/coinPrice"
android:layout_alignLeft="#+id/coinPrice"
android:layout_alignStart="#+id/coinPrice" />
</RelativeLayout>
logcat trace:
03-17 08:59:33.977 1107-1107/com.mobIce.digicoin.digitalcoin D/AndroidRuntime﹕ Shutting down VM
03-17 08:59:33.977 1107-1107/com.mobIce.digicoin.digitalcoin W/dalvikvm﹕ threadid=1: thread exiting with uncaught exception (group=0xb1a38ba8)
03-17 08:59:33.987 1107-1107/com.mobIce.digicoin.digitalcoin E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.mobIce.digicoin.digitalcoin, PID: 1107
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.mobIce.digicoin.digitalcoin/com.mobIce.digicoin.digitalcoin.MainActivity}: java.lang.NullPointerException
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2195)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
at android.app.ActivityThread.access$800(ActivityThread.java:135)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5017)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.NullPointerException
at com.mobIce.digicoin.digitalcoin.MainActivity.populateListView(MainActivity.java:47)
at com.mobIce.digicoin.digitalcoin.MainActivity.onCreate(MainActivity.java:36)
at android.app.Activity.performCreate(Activity.java:5231)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
            at android.app.ActivityThread.access$800(ActivityThread.java:135)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:136)
            at android.app.ActivityThread.main(ActivityThread.java:5017)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:515)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
            at dalvik.system.NativeStart.main(Native Method)
03-17 09:04:09.857 1149-1149/com.mobIce.digicoin.digitalcoin D/AndroidRuntime﹕ Shutting down VM
03-17 09:04:09.857 1149-1149/com.mobIce.digicoin.digitalcoin W/dalvikvm﹕ threadid=1: thread exiting with uncaught exception (group=0xb1a38ba8)
03-17 09:04:09.867 1149-1149/com.mobIce.digicoin.digitalcoin E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.mobIce.digicoin.digitalcoin, PID: 1149
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.mobIce.digicoin.digitalcoin/com.mobIce.digicoin.digitalcoin.MainActivity}: java.lang.NullPointerException
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2195)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
at android.app.ActivityThread.access$800(ActivityThread.java:135)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5017)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.NullPointerException
at com.mobIce.digicoin.digitalcoin.MainActivity.populateListView(MainActivity.java:50)
at com.mobIce.digicoin.digitalcoin.MainActivity.onCreate(MainActivity.java:39)
at android.app.Activity.performCreate(Activity.java:5231)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
            at android.app.ActivityThread.access$800(ActivityThread.java:135)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:136)
            at android.app.ActivityThread.main(ActivityThread.java:5017)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:515)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
            at dalvik.system.NativeStart.main(Native Method)
03-17 09:06:36.697 1192-1192/com.mobIce.digicoin.digitalcoin D/AndroidRuntime﹕ Shutting down VM
03-17 09:06:36.697 1192-1192/com.mobIce.digicoin.digitalcoin W/dalvikvm﹕ threadid=1: thread exiting with uncaught exception (group=0xb1a38ba8)
03-17 09:06:36.717 1192-1192/com.mobIce.digicoin.digitalcoin E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.mobIce.digicoin.digitalcoin, PID: 1192
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.mobIce.digicoin.digitalcoin/com.mobIce.digicoin.digitalcoin.MainActivity}: java.lang.NullPointerException
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2195)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
at android.app.ActivityThread.access$800(ActivityThread.java:135)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5017)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.NullPointerException
at com.mobIce.digicoin.digitalcoin.MainActivity.populateListView(MainActivity.java:50)
at com.mobIce.digicoin.digitalcoin.MainActivity.onCreate(MainActivity.java:39)
at android.app.Activity.performCreate(Activity.java:5231)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
            at android.app.ActivityThread.access$800(ActivityThread.java:135)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:136)
            at android.app.ActivityThread.main(ActivityThread.java:5017)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:515)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
            at dalvik.system.NativeStart.main(Native Method)
03-17 09:13:38.647 1239-1239/com.mobIce.digicoin.digitalcoin D/AndroidRuntime﹕ Shutting down VM
03-17 09:13:38.647 1239-1239/com.mobIce.digicoin.digitalcoin W/dalvikvm﹕ threadid=1: thread exiting with uncaught exception (group=0xb1a38ba8)
03-17 09:13:38.747 1239-1239/com.mobIce.digicoin.digitalcoin E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.mobIce.digicoin.digitalcoin, PID: 1239
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.mobIce.digicoin.digitalcoin/com.mobIce.digicoin.digitalcoin.MainActivity}: java.lang.NullPointerException
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2195)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
at android.app.ActivityThread.access$800(ActivityThread.java:135)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5017)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.NullPointerException
at com.mobIce.digicoin.digitalcoin.MainActivity.populateListView(MainActivity.java:50)
at com.mobIce.digicoin.digitalcoin.MainActivity.onCreate(MainActivity.java:37)
at android.app.Activity.performCreate(Activity.java:5231)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
            at android.app.ActivityThread.access$800(ActivityThread.java:135)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:136)
            at android.app.ActivityThread.main(ActivityThread.java:5017)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:515)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
            at dalvik.system.NativeStart.main(Native Method)
03-17 09:13:45.127 1239-1239/com.mobIce.digicoin.digitalcoin I/Process﹕ Sending signal. PID: 1239 SIG: 9
03-17 09:19:34.847 1285-1285/com.mobIce.digicoin.digitalcoin D/AndroidRuntime﹕ Shutting down VM
03-17 09:19:34.847 1285-1285/com.mobIce.digicoin.digitalcoin W/dalvikvm﹕ threadid=1: thread exiting with uncaught exception (group=0xb1a38ba8)
03-17 09:19:34.857 1285-1285/com.mobIce.digicoin.digitalcoin E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.mobIce.digicoin.digitalcoin, PID: 1285
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.mobIce.digicoin.digitalcoin/com.mobIce.digicoin.digitalcoin.MainActivity}: java.lang.NullPointerException
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2195)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
at android.app.ActivityThread.access$800(ActivityThread.java:135)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5017)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.NullPointerException
at com.mobIce.digicoin.digitalcoin.MainActivity.populateListView(MainActivity.java:50)
at com.mobIce.digicoin.digitalcoin.MainActivity.onCreate(MainActivity.java:37)
at android.app.Activity.performCreate(Activity.java:5231)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
            at android.app.ActivityThread.access$800(ActivityThread.java:135)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:136)
            at android.app.ActivityThread.main(ActivityThread.java:5017)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:515)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
            at dalvik.system.NativeStart.main(Native Method)
03-17 09:20:11.987 1285-1285/com.mobIce.digicoin.digitalcoin I/Process﹕ Sending signal. PID: 1285 SIG: 9

Your coinsListView is in the fragment layout and not in activity layout. You cannot access it with findViewById() in populateListView() called from activity onCreate(). Instead, move the list view population to the fragment's onCreateView() after the inflation, calling findViewById() on the rootView layout you just inflated.

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Java is a programming language and computing platform first released by Sun Microsystems in 1995.

Fragment error occurs while including a particular java file in Manifest - java

You never need to add fragments to your manifest. your logcat showing ClassNotFoundException: Didn't find class "com.sentientit.theiWedplanner.Fragadmob" but Fragadmob extends Fragment so u trying to adding fragment in manifast so make sure once and enjoy coding.

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