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I am getting error Unfortunately app has stopped.Where is the mistake?

These are the sections of code mentioned.As I run these errors pop up in logcat file and the app crashes when opened.There are so many of them that I could not figure out where the actual mistake is.Please Help me out where there is need of modification and replacement as I am trying to build a splash screen.
logcat:
06-08 11:36:18.203 17265-17265/? E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.elvero.telecom.voipapp, PID: 17265
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.elvero.telecom.voipapp/com.elvero.telecom.voipapp.splash}: android.view.InflateException: Binary XML file line #10: Error inflating class ImageView
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2567)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2641)
at android.app.ActivityThread.access$800(ActivityThread.java:182)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1515)
at android.os.Handler.dispatchMessage(Handler.java:111)
at android.os.Looper.loop(Looper.java:194)
at android.app.ActivityThread.main(ActivityThread.java:5717)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:959)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:754)
Caused by: android.view.InflateException: Binary XML file line #10: Error inflating class ImageView
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:763)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:806)
at android.view.LayoutInflater.inflate(LayoutInflater.java:504)
at android.view.LayoutInflater.inflate(LayoutInflater.java:414)
at android.view.LayoutInflater.inflate(LayoutInflater.java:365)
at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:292)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140)
at com.elvero.telecom.voipapp.splash.onCreate(splash.java:13)
at android.app.Activity.performCreate(Activity.java:6092)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1112)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2514)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2641) 
at android.app.ActivityThread.access$800(ActivityThread.java:182) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1515) 
at android.os.Handler.dispatchMessage(Handler.java:111) 
at android.os.Looper.loop(Looper.java:194) 
at android.app.ActivityThread.main(ActivityThread.java:5717) 
at java.lang.reflect.Method.invoke(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:372) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:959) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:754) 
Caused by: java.lang.UnsupportedOperationException: Can't convert to dimension: type=0x6
at android.content.res.TypedArray.getDimensionPixelOffset(TypedArray.java:533)
at android.view.View.<init>(View.java:3927)
at android.widget.ImageView.<init>(ImageView.java:139)
at android.widget.ImageView.<init>(ImageView.java:135)
at android.support.v7.widget.AppCompatImageView.<init>(AppCompatImageView.java:60)
at android.support.v7.widget.AppCompatImageView.<init>(AppCompatImageView.java:56)
at android.support.v7.app.AppCompatViewInflater.createView(AppCompatViewInflater.java:106)
at android.support.v7.app.AppCompatDelegateImplV9.createView(AppCompatDelegateImplV9.java:1029)
at android.support.v7.app.AppCompatDelegateImplV9.onCreateView(AppCompatDelegateImplV9.java:1087)
at android.support.v4.view.LayoutInflaterCompatHC$FactoryWrapperHC.onCreateView(LayoutInflaterCompatHC.java:47)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:725)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:806) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:504) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:414) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:365) 
at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:292) 
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140) 
at com.elvero.telecom.voipapp.splash.onCreate(splash.java:13) 
at android.app.Activity.performCreate(Activity.java:6092) 
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1112) 
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2514) 
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2641) 
at android.app.ActivityThread.access$800(ActivityThread.java:182) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1515) 
at android.os.Handler.dispatchMessage(Handler.java:111) 
at android.os.Looper.loop(Looper.java:194) 
at android.app.ActivityThread.main(ActivityThread.java:5717) 
at java.lang.reflect.Method.invoke(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:372) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:959) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:754) 
06-08 11:36:22.207 17265-17265/? I/Process: Sending signal. PID: 17265 SIG: 9
MainActivity.java:
package com.elvero.telecom.voipapp;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.support.v7.app.ActionBarActivity;
public class MainActivity extends AppCompatActivity {
private Toolbar toolbar;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
toolbar= (Toolbar)findViewById(R.id.app_bar);
setSupportActionBar(toolbar);
}
}
AndroidManifest.xml:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.elvero.telecom.voipapp">
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity android:name=".MainActivity">
</activity>
<activity android:name=".splash">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
splashactivity:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:visibility="visible"
tools:context="com.elvero.telecom.voipapp.splash">
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:background="#android:color/holo_blue_light"
android:elevation="#android:dimen/dialog_min_width_minor"
android:scaleType="fitCenter"
android:src="#drawable/logo_elvero"/>
</RelativeLayout>
Splash.java:
package com.elvero.telecom.voipapp;
import android.content.Intent;
import android.os.Handler;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
public class splash extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_splash);
Handler handler=new Handler();
handler.postDelayed(new Runnable(){
#Override
public void run(){
startActivity(new Intent(splash.this,MainActivity.class));
finish();
}
},1000);
}
}

error caused because code
android:elevation="#android:dimen/dialog_min_width_minor"
its better to give direct value to it like
android:elevation="5dp"

You can make separate Activity as a splash screen and use below code in onCreate() to show it for required seconds and then can move to your main landing activity.
new CountDownTimer(2000, 1000) {
public void onTick(long millisUntilFinished) {
}
public void onFinish() {
HarmUtils.openActivity(SplashScreenActivity.this, LoginActivity.class, true);
}
}.start();
here 2000 is waiting time (2000 = 2 seconds) and second parameter is time interval which I set to 1 second.
You can specify your time as per your requirements.
Hope this will help you.

Error with facebook activity in android studio

I'm trying to develop basic facebook activty and The app will get username and display it in screen but I'm facing a kind of FATAL EXCEPTION: main error I have provided my complete set of codes starting with manifest file, class file, xml file and the Logcat error,your help is highly required
The below provided code is my manifest file
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.world.trialwithmugaputhagam">
<uses-permission android:name="android.permission.INTERNET" />
<application
android:name=".MyApplicatioon"
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<meta-data
android:name="com.facebook.sdk.ApplicationId"
android:value="#string/app_id" />
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.facebook.FacebookActivity"
android:configChanges="keyboard|keyboardHidden|screenLayout|screenSize|orientation"
android:label="#string/app_name"
android:theme="#android:style/Theme.Translucent.NoTitleBar" />
<activity android:name=".MainFragment" />
</application>
The below code is the class file I have used.In below code I have also assigned mTextDetails but when I hover the cursor it say the value is not assigned
import android.os.Bundle;
import android.app.Fragment;
import android.content.Intent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import com.facebook.AccessToken;
import com.facebook.CallbackManager;
import com.facebook.FacebookCallback;
import com.facebook.FacebookException;
import com.facebook.FacebookSdk;
import com.facebook.Profile;
import com.facebook.login.LoginResult;
import com.facebook.login.widget.LoginButton;
public class MainActivity extends Fragment {
private TextView mTextDetails;
private CallbackManager mcallbackManager;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
FacebookSdk.sdkInitialize(getActivity().getApplicationContext());
mcallbackManager=CallbackManager.Factory.create();
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
return inflater.inflate(R.layout.activity_main,container,false);
}
private FacebookCallback<LoginResult> mcallback = new FacebookCallback<LoginResult>() {
#Override
public void onSuccess(LoginResult loginResult) {
AccessToken accessToken = loginResult.getAccessToken();
Profile profile = Profile.getCurrentProfile();
if (profile != null){
mTextDetails.setText("Welcome "+ profile.getName());
}
}
#Override
public void onCancel() {
}
#Override
public void onError(FacebookException error) {
}
};
#Override
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
LoginButton loginButton = (LoginButton) view.findViewById(R.id.login_button);
loginButton. setReadPermissions("user_friends");
loginButton. setFragment(this);
loginButton.registerCallback(mcallbackManager, mcallback);
}
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
mcallbackManager.onActivityResult(requestCode, resultCode, data);
}}
The below code is my XML file
<RelativeLayout 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:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context="com.example.world.trialwithmugaputhagam.MainActivity">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/Welcome"
android:id="#+id/text_details"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:layout_above="#+id/login_button"/>
<com.facebook.login.widget.LoginButton
android:id="#+id/login_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginTop="30dp"
android:layout_marginBottom="30dp"
android:layout_centerInParent="true"/></RelativeLayout>
Logcat error Sorry about the wrong alignment.
FATAL EXCEPTION: main
java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.world.trialwithmugaputhagam/com.example.world.trialwithmugaputhagam.MainActivity}: java.lang.ClassCastException: com.example.world.trialwithmugaputhagam.MainActivity cannot be cast to android.app.Activity
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2137)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2261)
at android.app.ActivityThread.access$600(ActivityThread.java:141)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5103)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassCastException: com.example.world.trialwithmugaputhagam.MainActivity cannot be cast to android.app.Activity
at android.app.Instrumentation.newActivity(Instrumentation.java:1061)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2128)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2261) 
at android.app.ActivityThread.access$600(ActivityThread.java:141) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256) 
at android.os.Handler.dispatchMessage(Handler.java:99) 
at android.os.Looper.loop(Looper.java:137) 
at android.app.ActivityThread.main(ActivityThread.java:5103) 
at java.lang.reflect.Method.invokeNative(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:525) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 
at dalvik.system.NativeStart.main(Native Method)

Because you are extending MainActivity from Fragment. Thus, your MainActivity is not actually an Activity but a Fragment. Extend it from Activity or subclasses of Activity.
Like this:
MainActivity extends AppCompatActivity
Edit 1: (Based on comments):
You haven't initialized mTextDetails;
try to do like this in Activity's onCreate:
mTextDetails = (TextView)findViewById(R.id.text_view_id);

Attempting add facebook login but app crashes android

I'm trying to add facebook login with a login button in a fragment.
When I try to run my app, it crashes and I get the following errors in my logcat
02-20 15:30:34.838 12503-12503/? E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.loomius.loomius, PID: 12503
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.loomius.loomius/com.loomius.loomius.MainActivity}: android.view.InflateException: Binary XML file line #8: Error inflating class fragment
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2200)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2249)
at android.app.ActivityThread.access$800(ActivityThread.java:141)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1212)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5113)
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:793)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:609)
at dalvik.system.NativeStart.main(Native Method)
Caused by: android.view.InflateException: Binary XML file line #8: Error inflating class fragment
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:716)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:758)
at android.view.LayoutInflater.inflate(LayoutInflater.java:495)
at android.view.LayoutInflater.inflate(LayoutInflater.java:400)
at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:249)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:106)
at com.loomius.loomius.MainActivity.onCreate(MainActivity.java:19)
at android.app.Activity.performCreate(Activity.java:5248)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2164)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2249)
            at android.app.ActivityThread.access$800(ActivityThread.java:141)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1212)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:136)
            at android.app.ActivityThread.main(ActivityThread.java:5113)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:515)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:609)
            at dalvik.system.NativeStart.main(Native Method)
Caused by: Unexpected CallbackManager, please use the provided Factory.
at com.facebook.login.LoginManager.registerCallback(LoginManager.java:151)
at com.facebook.login.widget.LoginButton.registerCallback(LoginButton.java:445)
at com.loomius.loomius.facebookLogin.onCreateView(facebookLogin.java:36)
at android.app.Fragment.performCreateView(Fragment.java:1700)
at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:866)
at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1040)
at android.app.FragmentManagerImpl.addFragment(FragmentManager.java:1142)
at android.app.Activity.onCreateView(Activity.java:4803)
at android.support.v4.app.BaseFragmentActivityHoneycomb.onCreateView(BaseFragmentActivityHoneycomb.java:34)
at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:79)
at android.support.v7.app.AppCompatDelegateImplV11.callActivityOnCreateView(AppCompatDelegateImplV11.java:41)
at android.support.v7.app.AppCompatDelegateImplV7.onCreateView(AppCompatDelegateImplV7.java:830)
at android.support.v4.view.LayoutInflaterCompatHC$FactoryWrapperHC.onCreateView(LayoutInflaterCompatHC.java:44)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:687)
            at android.view.LayoutInflater.rInflate(LayoutInflater.java:758)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:495)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:400)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
            at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:249)
            at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:106)
            at com.loomius.loomius.MainActivity.onCreate(MainActivity.java:19)
            at android.app.Activity.performCreate(Activity.java:5248)
            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2164)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2249)
            at android.app.ActivityThread.access$800(ActivityThread.java:141)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1212)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:136)
            at android.app.ActivityThread.main(ActivityThread.java:5113)
            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:793)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:609)
            at dalvik.system.NativeStart.main(Native Method)
Here is my AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.loomius.loomius" >
<uses-permission android:name="android.permission.INTERNET"/>
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<meta-data android:name="com.facebook.sdk.ApplicationId" android:value="#string/facebook_app_id"/>
<activity
android:name=".MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name="com.facebook.FacebookActivity"
android:configChanges="keyboard|keyboardHidden|screenLayout|screenSize|orientation"
android:theme="#android:style/Theme.Translucent.NoTitleBar"
android:label="#string/app_name" />
</application>
</manifest>
and here is my MainActivity.java file
public class MainActivity extends ActionBarActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
FacebookSdk.sdkInitialize(getApplicationContext());
// Initialize the SDK before executing any other operations,
// especially, if you're using Facebook UI elements.
setContentView(R.layout.activity_main);
}
}
My activity_main.xml file
<RelativeLayout 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:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:paddingBottom="#dimen/activity_vertical_margin" tools:context=".MainActivity">
<fragment android:name="com.loomius.loomius.facebookLogin"
android:id="#+id/facebookLogin"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>
and my fragment_facebook_login.xml
<FrameLayout 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" tools:context="com.loomius.loomius.facebookLogin">
<com.facebook.login.widget.LoginButton
android:id="#+id/login_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginTop="30dp"
android:layout_marginBottom="30dp" />
</FrameLayout>
and finally my facebookLogin.java
public class facebookLogin extends Fragment {
CallbackManager callbackManager;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
FacebookSdk.sdkInitialize(getActivity().getApplicationContext());
View view = inflater.inflate(R.layout.fragment_facebook_login, container, false);
LoginButton loginButton = (LoginButton) view.findViewById(R.id.login_button);
loginButton.setReadPermissions("user_friends");
// If using in a fragment
loginButton.setFragment(this);
// Other app specific specialization
// Callback registration
loginButton.registerCallback(callbackManager, new FacebookCallback<LoginResult>() {
#Override
public void onSuccess(LoginResult loginResult) {
Log.d("facebook_login", "The login was a success");
}
#Override
public void onCancel() {
Log.d("facebook_login", "The login got canceled midway");
}
#Override
public void onError(FacebookException exception) {
Log.d("facebook_login", "The login got failed");
}
});
return view;
}
}
I tried following the guide in the documentation by facebook. Sorry for the code dump, I'm new to android and I have no idea what's causing my app to crash.

callbackManager = CallbackManager.Factory.create(); put this code below
FacebookSdk.sdkInitialize(getActivity().getApplicationContext());.
You have to initialze the callbackManager .
Cheers!!

you also need
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
callbackManager.onActivityResult(requestCode, resultCode, data);
}
for callbacks to work

How can i solve this java lang error?

I am trying to solve this java lang error:
java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.sebasdeldihotmail.mediocre11/com.sebasdeldihotmail.mediocre11.SignUpOrLogInActivity}: java.lang.ClassCastException: com.sebasdeldihotmail.mediocre11.SignUpOrLogInActivity cannot be cast to android.app.Activity
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2039)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2153)
at android.app.ActivityThread.access$700(ActivityThread.java:137)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1246)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5031)
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:792)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:555)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassCastException: com.sebasdeldihotmail.mediocre11.SignUpOrLogInActivity cannot be cast to android.app.Activity
at android.app.Instrumentation.newActivity(Instrumentation.java:1053)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2030)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2153)
            at android.app.ActivityThread.access$700(ActivityThread.java:137)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1246)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:137)
            at android.app.ActivityThread.main(ActivityThread.java:5031)
            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:792)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:555)
            at dalvik.system.NativeStart.main(Native Method)
i have checked again and again the code and i can't find what is making the app crash, maybe some fresh eyes can help to find the issue.
Here is the SignUpOrSignIn class
public class SignUpOrLogInActivity extends Fragment {
private static final String TAG = "MainFragment";
Button signIn;
Button signUp;
#Override
public View onCreateView(LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
View root = inflater.inflate(R.layout.signinorsignup_activity,container,false);
Button signIn = (Button)root.findViewById(R.id.login);
signIn.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
startActivity(new Intent(getActivity(), LoginActivity.class));
}
});
Button signUp = (Button)root.findViewById(R.id.signup);
signUp.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
startActivity(new Intent(getActivity(),SignUpActivity.class));
}
});
return root;
}
private void onSessionStateChange(Session session, Session state, Exception exception) {
if (state.isOpened()) {
Log.i(TAG, "Logged in...");
} else if (state.isClosed()) {
Log.i(TAG, "Logged out...");
}
}
}
and here is the layout
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#67AAE4">
<Button
android:id="#+id/signup"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Sign Up"/>
<Button
android:id="#+id/login"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Login"/>
<com.facebook.widget.LoginButton
android:id="#+id/authButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginTop="30dp"
/>
</LinearLayout>
MANIFEST
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme"
android:name=".ParseStarter">
<activity
android:screenOrientation="portrait"
android:name=".MainActivity"
android:label="#string/app_name" >
</activity>
<activity android:name=".SignUpOrLogInActivity"
android:label="#string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity >
<activity android:name=".DispatchActivity"/>
<activity android:name=".LoginActivity" />
<activity android:name=".SignUpActivity" />
<activity android:name="com.facebook.LoginActivity"/>
<meta-data android:name="com.facebook.sdk.ApplicationId" android:value="#string/facebook_app_id"/>
</application>
</manifest>
"CORRECTED MANIFEST"
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.sebasdeldihotmail.mediocre11" >
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme"
android:name=".ParseStarter">
<activity
android:screenOrientation="portrait"
android:name=".MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity >
<activity android:name=".DispatchActivity"/>
<activity android:name=".LoginActivity" />
<activity android:name=".SignUpActivity" />
<activity android:name="com.facebook.LoginActivity"/>
<meta-data android:name="com.facebook.sdk.ApplicationId" android:value="#string/facebook_app_id"/>
</application>
</manifest>
Can anyone figure out what is making the app crash?
Thanks very much for reading :)

Your SignUpOrLogInActivity extends Fragment. I'm assuming, based on the name, that this class is declared in the manifest as an Activity, which makes Android expect it to be a sub-class of Activity.
A Fragment must be contained in an Activity, so you need to create a class that extends Activity and contains your Fragment (which I would rename to something that doesn't contain the word Activity, since it's confusing). Your Android manifest should declare that activity class as the activity from which your app is launched.

SignUpOrLogInActivity extends Fragment
this is a fragment, and you are casting it to an activity.
You need to typecast it to a fragment for it to work
Caused by: java.lang.ClassCastException: com.sebasdeldihotmail.mediocre11.SignUpOrLogInActivity cannot be cast to android.app.Activity

Unfortunately, APP Has Stopped after added ADMOB

I am trying to add adMob ad in my android application, but it gives me unfortunately stopped error,
I am not expert in android program so dont know whats wrong in aap.
HomeActivity
package com.innobee.finddifferences;
import com.google.android.gms.ads.*;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import com.innobee.finddifferences.utility.Prefs;
public class HomeActivity extends Activity{
private int mLevelDuration; //Max Duration of the level in seconds
private Button mBtnResume;
private Button mBtnStart;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home);
AdView adView = (AdView)this.findViewById(R.id.adView);
AdRequest adRequest = new AdRequest.Builder().build();
adView.loadAd(adRequest);
mLevelDuration = getResources().getInteger(R.integer.levelDuration);
mLevelDuration = mLevelDuration * 1000;
mBtnStart = (Button)findViewById(R.id.btnStart);
mBtnStart.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
Prefs.clearPref(getApplicationContext());
Prefs.setStagePref(getApplicationContext(), 1);
Intent play = new Intent(HomeActivity.this,
PlayActivity.class);
startActivity(play);
}
});
mBtnResume = (Button)findViewById(R.id.btnResume);
mBtnResume.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
Intent play = new Intent(HomeActivity.this,
PlayActivity.class);
startActivity(play);
}
});
if(Prefs.getResumePref(getApplicationContext()) == mLevelDuration) {
mBtnResume.setVisibility(View.INVISIBLE);
}
else {
mBtnResume.setVisibility(View.VISIBLE);
}
}
#Override
protected void onRestart() {
super.onRestart();
//Show/hide resume button
if(Prefs.getResumePref(getApplicationContext()) == mLevelDuration) {
mBtnResume.setVisibility(View.INVISIBLE);
}
else {
mBtnResume.setVisibility(View.VISIBLE);
}
}
}
activity_home
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:ads="http://schemas.android.com/apk/res-auto"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_gravity="bottom"
android:background="#drawable/background"
android:gravity="bottom"
android:orientation="vertical" >
<Button
android:id="#+id/btnStart"
android:layout_width="209dip"
android:layout_height="55dip"
android:layout_marginBottom="30dip"
android:layout_gravity="center_horizontal"
android:background="#drawable/button_start" />
<Button
android:id="#+id/btnResume"
android:layout_width="209dip"
android:layout_height="55dip"
android:layout_gravity="center_horizontal"
android:background="#drawable/button_resume"
android:layout_marginBottom="50dip"
android:visibility="gone" />
<com.google.android.gms.ads.AdView android:id="#+id/adView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
ads:adUnitId="ca-app-pub-1504309466120108/6661079420"
ads:adSize="BANNER"/>
</LinearLayout>
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.innobee.finddifferences"
android:versionCode="4"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="19" />
<uses-permission android:name="android.permission.INTERNET"></uses-permission>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppBaseTheme.NoTitle" >
<meta-data android:name="com.google.android.gms.version"
android:value="#integer/google_play_services_version"/>
<activity
android:name="com.innobee.finddifferences.HomeActivity"
android:screenOrientation="portrait"
android:theme="#style/AppBaseTheme.NoTitle"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.innobee.finddifferences.NextGameActivity"
android:screenOrientation="portrait"
android:theme="#style/Theme.Transparent"
android:configChanges="orientation|keyboardHidden" >
</activity>
<activity
android:name="com.innobee.finddifferences.SummaryActivity"
android:screenOrientation="portrait"
android:theme="#style/AppBaseTheme.NoTitle"
android:configChanges="orientation|keyboardHidden" >
</activity>
<activity
android:name="com.innobee.finddifferences.LostActivity"
android:screenOrientation="portrait"
android:theme="#style/AppBaseTheme.NoTitle"
android:configChanges="orientation|keyboardHidden" >
</activity>
<activity
android:name="com.innobee.finddifferences.StagePickActivity"
android:screenOrientation="portrait"
android:theme="#style/AppBaseTheme.NoTitle"
android:configChanges="orientation|keyboardHidden" >
</activity>
<activity
android:name="com.innobee.finddifferences.PlayActivity"
android:screenOrientation="portrait"
android:theme="#style/AppBaseTheme.NoTitle"
android:configChanges="orientation|keyboardHidden" >
</activity>
<activity
android:name="com.innobee.finddifferences.ListMobileActivity"
android:screenOrientation="portrait"
android:theme="#style/AppBaseTheme.NoTitle"
android:configChanges="orientation|keyboardHidden" >
</activity>
<activity android:name="com.google.ads.AdActivity"
android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize"/>
</application>
</manifest>
LogCat
11-30 22:52:47.121: E/AndroidRuntime(1282): at com.innobee.finddifferences.HomeActivity.onCreate(HomeActivity.java:21)
11-30 22:52:47.121: E/AndroidRuntime(1282): at android.app.Activity.performCreate(Activity.java:5104)
11-30 22:52:47.121: E/AndroidRuntime(1282): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
11-30 22:52:47.121: E/AndroidRuntime(1282): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144)
11-30 22:52:47.121: E/AndroidRuntime(1282): ... 11 more
11-30 22:52:47.121: E/AndroidRuntime(1282): Caused by: java.lang.ClassNotFoundException: Didn't find class "com.google.android.gms.ads.AdView" on path: /data/app/com.innobee.finddifferences-1.apk
11-30 22:52:47.121: E/AndroidRuntime(1282): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:65)
11-30 22:52:47.121: E/AndroidRuntime(1282): at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
11-30 22:52:47.121: E/AndroidRuntime(1282): at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
11-30 22:52:47.121: E/AndroidRuntime(1282): at android.view.LayoutInflater.createView(LayoutInflater.java:552)
11-30 22:52:47.121: E/AndroidRuntime(1282): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:687)
11-30 22:52:47.121: E/AndroidRuntime(1282): ... 21 more
Thank you

The error might come from the wrong activity, you listed in your manifest, use this one:
<activity
android:name="com.google.android.gms.ads.AdActivity"
android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize" />
Still, as I said in my comment you should use minSDK="9" with the latest version of Google Services, otherwise this can lead to problems as well