Application unfortunately has been stopped while implementing simple fragment - java

My MainActivity contents is :
public class MainActivity extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
my_frag myFrag = new my_frag();
fragmentTransaction.replace(android.R.id.content,myFrag);
fragmentTransaction.commit();
}
fragment class is :
public class my_frag extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_my_frag, container, false);
}
Main xml is :
<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:layout_width="2000dp"
android:layout_height="250dp"
android:name="com.example.gcoeara.mywork.my_fragment"
android:id="#+id/fragment"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
tools:layout="#layout/fragment_my_frag" />
</RelativeLayout>
Namespace is as follows :
activity name : MainActivity.java
main xml : activity_main.xml
fragment name : my_frag.java
fragment class : fragment_my_frag.xml
system : windows 7
framework : android studio
log cat is :
Process: com.example.gcoeara.mywork, PID: 22847
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.gcoeara.mywork/com.example.gcoeara.mywork.MainActivity}: android.view.InflateException: Binary XML file line #13: Error inflating class fragment
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2298)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
at android.app.ActivityThread.access$800(ActivityThread.java:144)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5221)
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:899)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
Caused by: android.view.InflateException: Binary XML file line #13: Error inflating class fragment
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 com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:377)
at android.app.Activity.setContentView(Activity.java:2144)
at com.example.gcoeara.mywork.MainActivity.onCreate(MainActivity.java:22)
at android.app.Activity.performCreate(Activity.java:5933)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2251)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
            at android.app.ActivityThread.access$800(ActivityThread.java:144)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:135)
            at android.app.ActivityThread.main(ActivityThread.java:5221)
            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:899)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
Caused by: java.lang.IllegalStateException: Fragment com.example.gcoeara.mywork.my_fragment did not create a view.
at android.app.FragmentManagerImpl.onCreateView(FragmentManager.java:2145)
at android.app.Activity.onCreateView(Activity.java:5282)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:733)
            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 com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:377)
            at android.app.Activity.setContentView(Activity.java:2144)
            at com.example.gcoeara.mywork.MainActivity.onCreate(MainActivity.java:22)
            at android.app.Activity.performCreate(Activity.java:5933)
            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2251)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
            at android.app.ActivityThread.access$800(ActivityThread.java:144)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:135)
            at android.app.ActivityThread.main(ActivityThread.java:5221)
            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:899)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)

Change
android:name="com.example.gcoeara.mywork.my_fragment"
in your fragment to
android:name="com.example.gcoeara.mywork.my_frag"
Hope you have the package path for my_frag as
com.example.gcoeara.mywork.my_frag.

Related

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>

Problems in Parcelable Class using a List of Custom Objects (Defined in an Inner Class)

I'm trying to make my class Parcelable, but I keep getting these errors:
08-28 07:42:55.598 7810-7810/? E/AndroidRuntime﹕ FATAL EXCEPTION: main
java.lang.IllegalStateException: Could not execute method of the activity
at android.view.View$1.onClick(View.java:3617)
at android.view.View.performClick(View.java:4222)
at android.view.View$PerformClick.run(View.java:17620)
at android.os.Handler.handleCallback(Handler.java:800)
at android.os.Handler.dispatchMessage(Handler.java:100)
at android.os.Looper.loop(Looper.java:194)
at android.app.ActivityThread.main(ActivityThread.java:5391)
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:833)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
at de.robv.android.xposed.XposedBridge.main(XposedBridge.java:126)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at android.view.View$1.onClick(View.java:3612)
            at android.view.View.performClick(View.java:4222)
            at android.view.View$PerformClick.run(View.java:17620)
            at android.os.Handler.handleCallback(Handler.java:800)
            at android.os.Handler.dispatchMessage(Handler.java:100)
            at android.os.Looper.loop(Looper.java:194)
            at android.app.ActivityThread.main(ActivityThread.java:5391)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:525)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:833)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
            at de.robv.android.xposed.XposedBridge.main(XposedBridge.java:126)
            at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.RuntimeException: Parcelable encountered IOException writing serializable object (name = thesleeplesselite.drgreenthumb.CropRotationPlan$SubPlan)
at android.os.Parcel.writeSerializable(Parcel.java:1279)
at android.os.Parcel.writeValue(Parcel.java:1233)
at android.os.Parcel.writeList(Parcel.java:622)
at thesleeplesselite.drgreenthumb.CropRotationPlan.writeToParcel(CropRotationPlan.java:248)
at android.os.Parcel.writeParcelable(Parcel.java:1254)
at android.os.Parcel.writeValue(Parcel.java:1173)
at android.os.Parcel.writeMapInternal(Parcel.java:591)
at android.os.Bundle.writeToParcel(Bundle.java:1627)
at android.os.Parcel.writeBundle(Parcel.java:605)
at android.content.Intent.writeToParcel(Intent.java:6850)
at android.app.ActivityManagerProxy.startActivity(ActivityManagerNative.java:1908)
at android.app.Instrumentation.execStartActivity(Instrumentation.java:1483)
at android.app.Activity.startActivityForResult(Activity.java:3388)
at android.app.Activity.startActivityForResult(Activity.java:3349)
at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:820)
at thesleeplesselite.drgreenthumb.CropRotationPlannerActivity.btnViewPlan(CropRotationPlannerActivity.java:197)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:525)
            at android.view.View$1.onClick(View.java:3612)
            at android.view.View.performClick(View.java:4222)
            at android.view.View$PerformClick.run(View.java:17620)
            at android.os.Handler.handleCallback(Handler.java:800)
            at android.os.Handler.dispatchMessage(Handler.java:100)
            at android.os.Looper.loop(Looper.java:194)
            at android.app.ActivityThread.main(ActivityThread.java:5391)
            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:833)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
            at de.robv.android.xposed.XposedBridge.main(XposedBridge.java:126)
            at dalvik.system.NativeStart.main(Native Method)
Caused by: java.io.NotSerializableException: thesleeplesselite.drgreenthumb.CropRotationPlan
at java.io.ObjectOutputStream.writeNewObject(ObjectOutputStream.java:1364)
at java.io.ObjectOutputStream.writeObjectInternal(ObjectOutputStream.java:1671)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:1517)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:1481)
at java.io.ObjectOutputStream.writeFieldValues(ObjectOutputStream.java:979)
at java.io.ObjectOutputStream.defaultWriteObject(ObjectOutputStream.java:368)
at java.io.ObjectOutputStream.writeHierarchy(ObjectOutputStream.java:1074)
at java.io.ObjectOutputStream.writeNewObject(ObjectOutputStream.java:1404)
at java.io.ObjectOutputStream.writeObjectInternal(ObjectOutputStream.java:1671)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:1517)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:1481)
at android.os.Parcel.writeSerializable(Parcel.java:1274)
            at android.os.Parcel.writeValue(Parcel.java:1233)
            at android.os.Parcel.writeList(Parcel.java:622)
            at thesleeplesselite.drgreenthumb.CropRotationPlan.writeToParcel(CropRotationPlan.java:248)
            at android.os.Parcel.writeParcelable(Parcel.java:1254)
            at android.os.Parcel.writeValue(Parcel.java:1173)
            at android.os.Parcel.writeMapInternal(Parcel.java:591)
            at android.os.Bundle.writeToParcel(Bundle.java:1627)
            at android.os.Parcel.writeBundle(Parcel.java:605)
            at android.content.Intent.writeToParcel(Intent.java:6850)
            at android.app.ActivityManagerProxy.startActivity(ActivityManagerNative.java:1908)
            at android.app.Instrumentation.execStartActivity(Instrumentation.java:1483)
            at android.app.Activity.startActivityForResult(Activity.java:3388)
            at android.app.Activity.startActivityForResult(Activity.java:3349)
            at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:820)
            at thesleeplesselite.drgreenthumb.CropRotationPlannerActivity.btnViewPlan(CropRotationPlannerActivity.java:197)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:525)
            at android.view.View$1.onClick(View.java:3612)
            at android.view.View.performClick(View.java:4222)
            at android.view.View$PerformClick.run(View.java:17620)
            at android.os.Handler.handleCallback(Handler.java:800)
            at android.os.Handler.dispatchMessage(Handler.java:100)
            at android.os.Looper.loop(Looper.java:194)
            at android.app.ActivityThread.main(ActivityThread.java:5391)
            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:833)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
            at de.robv.android.xposed.XposedBridge.main(XposedBridge.java:126)
            at dalvik.system.NativeStart.main(Native Method)
Here's the structure of my class; it has an inner class. I don't think it's ideal to put my entire code. It's just too long.
public class CropRotationPlan implements Parcelable {
String name; // Name of plan
HashMap<String, List<HashMap<String, String>>> listOfFamilies; // HashMap containing Plant Family Names as keys and a List of plants
List<SubPlan> listOfSubPlans;
public CropRotationPlan() {
name = null;
listOfFamilies = new HashMap<>();
listOfSubPlans = new ArrayList<>();
}
...
#Override
public int describeContents() {
return 0;
}
#Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeString(this.name);
dest.writeSerializable(this.listOfFamilies);
dest.writeList(this.listOfSubPlans);
}
protected CropRotationPlan(Parcel in) {
this.name = in.readString();
this.listOfFamilies = (HashMap<String, List<HashMap<String, String>>>) in.readSerializable();
this.listOfSubPlans = new ArrayList<SubPlan>();
in.readList(this.listOfSubPlans, List.class.getClassLoader());
}
public static final Parcelable.Creator<CropRotationPlan> CREATOR = new Parcelable.Creator<CropRotationPlan>() {
public CropRotationPlan createFromParcel(Parcel source) {
return new CropRotationPlan(source);
}
public CropRotationPlan[] newArray(int size) {
return new CropRotationPlan[size];
}
};
public class SubPlan implements Serializable {
int year;
HashMap<String, Integer> orderOfFamilies;
...
}
}
At this point, I seriously have no idea what to do.
CropRotationPlan.java:248 is dest.writeList(this.listOfSubPlans); in writeToParcel()
Also, in another class, I have this method:
public void btnViewPlan(View view) {
// We'll be sending our cropRotationPlan object to next activity (PlanActivity)
// And we'll be expecting a result (since we'll allow the user to manipulate the object there)
Intent i = new Intent(CropRotationPlannerActivity.this, PlanActivity.class);
i.putExtra("cropRotationPlan", cropRotationPlan);
startActivityForResult(i, SET_PLAN_REQUEST);
}
CropRotationPlannerActivity.java:197 is: startActivityForResult(i, SET_PLAN_REQUEST);
I've tried placing my inner class into a separate class, and then had it to implement Serializable OR Parcelable (just one of 'em) but I just keep getting errors. All relating to my SubPlan class; like problems with marshing it and stuff. Along with using TypedList instead somewhere in the code.
Help would be appreciated. Thanks!
I just don't know what to do anymore.
PS: I'm sorry if I sound so incoherent right now. I might edit this post once I recover my sanity.
CODE FOR SubPlan CLASS
public class SubPlan implements Serializable {
int year;
HashMap<String, Integer> orderOfFamilies;
public SubPlan(int year) {
orderOfFamilies = new HashMap<>();
this.year = year;
int temp = -1;
for (String key : listOfFamilies.keySet()) {
orderOfFamilies.put(key, ++temp);
}
}
public SubPlan(int year, HashMap<String, Integer> orderOfFamilies) {
this.year = year;
this.orderOfFamilies = orderOfFamilies;
}
public int getYear() {
return year;
}
public String getName() {
return "Year " + year;
}
public String getKey(int index) {
for (String key : orderOfFamilies.keySet()) {
if (orderOfFamilies.get(key).equals(index))
return key;
}
return null;
}
public int getLocationOf(String family) {
return orderOfFamilies.get(family);
}
public void setOrderOfFamily(String family, int index) {
if (orderOfFamilies.containsKey(family))
orderOfFamilies.put(family, index);
}
public void removeFamily(String family) {
if (orderOfFamilies.containsKey(family)) {
orderOfFamilies.remove(family);
}
}
public void rotateFamilies() {
for (int i = 0; i < getNumberOfFamilies(); i++) {
String family = getKey(i);
// if not last family on list
if (orderOfFamilies.get(family) != getNumberOfFamilies() - 1)
setOrderOfFamily(family, i + 1);
else
setOrderOfFamily(family, 0);
}
}
}
Additionally, getNumberOfFamilies() is a method belonging to the parent class, with the following definition:
public int getNumberOfFamilies() {
return listOfFamilies.size();
}
I have initially not let SubPlan implement Serializable and these are the exceptions I get:
08-28 08:31:07.809 8741-8741/? E/AndroidRuntime﹕ FATAL EXCEPTION: main
java.lang.IllegalStateException: Could not execute method of the activity
at android.view.View$1.onClick(View.java:3617)
at android.view.View.performClick(View.java:4222)
at android.view.View$PerformClick.run(View.java:17620)
at android.os.Handler.handleCallback(Handler.java:800)
at android.os.Handler.dispatchMessage(Handler.java:100)
at android.os.Looper.loop(Looper.java:194)
at android.app.ActivityThread.main(ActivityThread.java:5391)
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:833)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
at de.robv.android.xposed.XposedBridge.main(XposedBridge.java:126)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at android.view.View$1.onClick(View.java:3612)
            at android.view.View.performClick(View.java:4222)
            at android.view.View$PerformClick.run(View.java:17620)
            at android.os.Handler.handleCallback(Handler.java:800)
            at android.os.Handler.dispatchMessage(Handler.java:100)
            at android.os.Looper.loop(Looper.java:194)
            at android.app.ActivityThread.main(ActivityThread.java:5391)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:525)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:833)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
            at de.robv.android.xposed.XposedBridge.main(XposedBridge.java:126)
            at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.RuntimeException: Parcel: unable to marshal value thesleeplesselite.drgreenthumb.CropRotationPlan$SubPlan#4191f010
at android.os.Parcel.writeValue(Parcel.java:1235)
at android.os.Parcel.writeList(Parcel.java:622)
at thesleeplesselite.drgreenthumb.CropRotationPlan.writeToParcel(CropRotationPlan.java:249)
at android.os.Parcel.writeParcelable(Parcel.java:1254)
at android.os.Parcel.writeValue(Parcel.java:1173)
at android.os.Parcel.writeMapInternal(Parcel.java:591)
at android.os.Bundle.writeToParcel(Bundle.java:1627)
at android.os.Parcel.writeBundle(Parcel.java:605)
at android.content.Intent.writeToParcel(Intent.java:6850)
at android.app.ActivityManagerProxy.startActivity(ActivityManagerNative.java:1908)
at android.app.Instrumentation.execStartActivity(Instrumentation.java:1483)
at android.app.Activity.startActivityForResult(Activity.java:3388)
at android.app.Activity.startActivityForResult(Activity.java:3349)
at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:820)
at thesleeplesselite.drgreenthumb.CropRotationPlannerActivity.btnViewPlan(CropRotationPlannerActivity.java:197)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:525)
            at android.view.View$1.onClick(View.java:3612)
            at android.view.View.performClick(View.java:4222)
            at android.view.View$PerformClick.run(View.java:17620)
            at android.os.Handler.handleCallback(Handler.java:800)
            at android.os.Handler.dispatchMessage(Handler.java:100)
            at android.os.Looper.loop(Looper.java:194)
            at android.app.ActivityThread.main(ActivityThread.java:5391)
            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:833)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
            at de.robv.android.xposed.XposedBridge.main(XposedBridge.java:126)
            at dalvik.system.NativeStart.main(Native Method)
08-28 08:31:09.543 531-1643/? E/InputDispatcher﹕ channel '41d34990 thesleeplesselite.drgreenthumb/thesleeplesselite.drgreenthumb.MainActivity (server)' ~ Channel is unrecoverably broken and will be disposed!
08-28 08:31:09.543 531-1643/? E/InputDispatcher﹕ channel '4281f970 thesleeplesselite.drgreenthumb/thesleeplesselite.drgreenthumb.CropRotationPlannerActivity (server)' ~ Channel is unrecoverably broken and will be disposed!
Additionally, I have tried implementing Parcelable on SubPlan and made it have its own class:
08-28 08:54:59.291 9245-9245/? E/AndroidRuntime﹕ FATAL EXCEPTION: main
java.lang.IllegalStateException: Could not execute method of the activity
at android.view.View$1.onClick(View.java:3617)
at android.view.View.performClick(View.java:4222)
at android.view.View$PerformClick.run(View.java:17620)
at android.os.Handler.handleCallback(Handler.java:800)
at android.os.Handler.dispatchMessage(Handler.java:100)
at android.os.Looper.loop(Looper.java:194)
at android.app.ActivityThread.main(ActivityThread.java:5391)
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:833)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
at de.robv.android.xposed.XposedBridge.main(XposedBridge.java:126)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at android.view.View$1.onClick(View.java:3612)
            at android.view.View.performClick(View.java:4222)
            at android.view.View$PerformClick.run(View.java:17620)
            at android.os.Handler.handleCallback(Handler.java:800)
            at android.os.Handler.dispatchMessage(Handler.java:100)
            at android.os.Looper.loop(Looper.java:194)
            at android.app.ActivityThread.main(ActivityThread.java:5391)
            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:833)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
            at de.robv.android.xposed.XposedBridge.main(XposedBridge.java:126)
            at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.StackOverflowError
at java.io.SerializationHandleMap.get(SerializationHandleMap.java:63)
at java.io.ObjectOutputStream.dumpCycle(ObjectOutputStream.java:425)
at java.io.ObjectOutputStream.writeObjectInternal(ObjectOutputStream.java:1566)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:1517)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:1481)
at java.util.HashMap.writeObject(HashMap.java:1015)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at java.io.ObjectOutputStream.writeHierarchy(ObjectOutputStream.java:1053)
at java.io.ObjectOutputStream.writeNewObject(ObjectOutputStream.java:1404)
at java.io.ObjectOutputStream.writeObjectInternal(ObjectOutputStream.java:1671)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:1517)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:1481)
at java.util.ArrayList.writeObject(ArrayList.java:644)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at java.io.ObjectOutputStream.writeHierarchy(ObjectOutputStream.java:1053)
at java.io.ObjectOutputStream.writeNewObject(ObjectOutputStream.java:1404)
at java.io.ObjectOutputStream.writeObjectInternal(ObjectOutputStream.java:1671)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:1517)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:1481)
at java.util.HashMap.writeObject(HashMap.java:1016)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at java.io.ObjectOutputStream.writeHierarchy(ObjectOutputStream.java:1053)
at java.io.ObjectOutputStream.writeNewObject(ObjectOutputStream.java:1404)
at java.io.ObjectOutputStream.writeObjectInternal(ObjectOutputStream.java:1671)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:1517)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:1481)
at android.os.Parcel.writeSerializable(Parcel.java:1274)
at thesleeplesselite.drgreenthumb.CropRotationPlan.writeToParcel(CropRotationPlan.java:185)
at android.os.Parcel.writeParcelable(Parcel.java:1254)
at thesleeplesselite.drgreenthumb.SubPlan.writeToParcel(SubPlan.java:83)
at android.os.Parcel.writeTypedList(Parcel.java:1017)
at thesleeplesselite.drgreenthumb.CropRotationPlan.writeToParcel(CropRotationPlan.java:186)
at android.os.Parcel.writeParcelable(Parcel.java:1254)
at thesleeplesselite.drgreenthumb.SubPlan.writeToParcel(SubPlan.java:83)
at android.os.Parcel.writeTypedList(Parcel.java:1017)
at thesleeplesselite.drgreenthumb.CropRotationPlan.writeToParcel(CropRotationPlan.java:186)
at android.os.Parcel.writeParcelable(Parcel.java:1254)
at thesleeplesselite.drgreenthumb.SubPlan.writeToParcel(SubPlan.java:83)
at android.os.Parcel.writeTypedList(Parcel.java:1017)
at thesleeplesselite.drgreenthumb.CropRotationPlan.write
The root cause is listed at the bottom, and the error says it all:
java.io.NotSerializableException: thesleeplesselite.drgreenthumb.CropRotationPlan
The class CropRotationPlan must be Serializable.
Update
Because SubPlan is not static, serializing SubPlan also means serializing the outer class CropRotationPlan. Since only the SubPlan constructor seems to use the outer class, change the class to static and send listOfFamilies in as a parameter on the constructor.

Create Custom View and Add to XML

I have created a custom View which draws a line:
public class DrawView extends View {
Paint paint = new Paint();
public DrawView(Context context) {
super(context);
paint.setColor(Color.BLACK);
}
#Override
public void onDraw(Canvas canvas) {
canvas.drawLine(0, 0, 100, 100, paint);
}
}
I have a MainActivity class and activity_main layout where my layout contains an image and several buttons. I want to put the custom view that I created to my XML file(activity_main) where a line would be drawn on top of the image.
I tried adding it:
<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"
tools:context=".MainActivity">
//imageview and buttons here
<com.myapp.alphasickbro.myapplication2.DrawView
android:id="#+id/paintView"
android:layout_width="100dp"
android:layout_height="100dp"
/>
</RelativeLayout>
Here is my MainActivity:
public class MainActivity extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
}
But when I run it, the app unfortunately stops. Did I miss something? What lines of code should I add?
Any answer would be appreciated
EDIT:
04-18 15:24:47.517 26732-26732/com.myapp.alphasickbro.myapplication2 E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.myapp.alphasickbro.myapplication2, PID: 26732
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.myapp.alphasickbro.myapplication2/com.myapp.alphasickbro.myapplication2.MainActivity}: android.view.InflateException: Binary XML file line #6: Error inflating class com.myapp.alphasickbro.myapplication2.DrawView
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2318)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2396)
at android.app.ActivityThread.access$800(ActivityThread.java:139)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1293)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:149)
at android.app.ActivityThread.main(ActivityThread.java:5268)
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 #6: Error inflating class com.myapp.alphasickbro.myapplication2.DrawView
at android.view.LayoutInflater.createView(LayoutInflater.java:620)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:696)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:755)
at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
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:290)
at android.app.Activity.setContentView(Activity.java:2002)
at com.myapp.alphasickbro.myapplication2.MainActivity.onCreate(MainActivity.java:15)
at android.app.Activity.performCreate(Activity.java:5411)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2270)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2396)
            at android.app.ActivityThread.access$800(ActivityThread.java:139)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1293)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:149)
            at android.app.ActivityThread.main(ActivityThread.java:5268)
            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: 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:594)
            at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:696)
            at android.view.LayoutInflater.rInflate(LayoutInflater.java:755)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
            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:290)
            at android.app.Activity.setContentView(Activity.java:2002)
            at com.myapp.alphasickbro.myapplication2.MainActivity.onCreate(MainActivity.java:15)
            at android.app.Activity.performCreate(Activity.java:5411)
            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2270)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2396)
            at android.app.ActivityThread.access$800(ActivityThread.java:139)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1293)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:149)
            at android.app.ActivityThread.main(ActivityThread.java:5268)
            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: java.lang.NullPointerException
at com.myapp.alphasickbro.myapplication2.DrawView.<init>(DrawView.java:27)
            at java.lang.reflect.Constructor.constructNative(Native Method)
            at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
            at android.view.LayoutInflater.createView(LayoutInflater.java:594)
            at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:696)
            at android.view.LayoutInflater.rInflate(LayoutInflater.java:755)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
            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:290)
            at android.app.Activity.setContentView(Activity.java:2002)
            at com.myapp.alphasickbro.myapplication2.MainActivity.onCreate(MainActivity.java:15)
            at android.app.Activity.performCreate(Activity.java:5411)
            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2270)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2396)
            at android.app.ActivityThread.access$800(ActivityThread.java:139)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1293)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:149)
            at android.app.ActivityThread.main(ActivityThread.java:5268)
            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)
I think you need to add the missing constructors. Clean your project.
public class DrawView extends View {
Paint paint;
public DrawView(Context context) {
super(context);
init();
}
public DrawView(Context context, AttributeSet attrs) {
super(context, attrs);
init();
}
public DrawView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
init();
}
private void init() {
paint = new Paint();
paint.setColor(Color.BLACK);
}
}

Passing ArrayList<String> from activity to fragment in android

I have been dealing with an issue for a while now that I cannot seem to figure out, I am trying to pass an ArrayList<String> from an activity to a fragment, however, I get the following stack trace when I run the code
03-30 19:26:38.465 28955-28955/org.tcnjteamandroid.cryptochat E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: org.tcnjteamandroid.cryptochat, PID: 28955
java.lang.RuntimeException: Unable to start activity ComponentInfo{org.tcnjteamandroid.cryptochat/org.tcnjteamandroid.cryptochat.drawer}: android.view.InflateException: Binary XML file line #24: Error inflating class fragment
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2299)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2361)
at android.app.ActivityThread.access$800(ActivityThread.java:145)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1279)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5240)
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:899)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
Caused by: android.view.InflateException: Binary XML file line #24: Error inflating class fragment
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.ActionBarActivityDelegateBase.setContentView(ActionBarActivityDelegateBase.java:228)
at android.support.v7.app.ActionBarActivity.setContentView(ActionBarActivity.java:102)
at org.tcnjteamandroid.cryptochat.drawer.onCreate(drawer.java:53)
at android.app.Activity.performCreate(Activity.java:5933)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2252)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2361)
            at android.app.ActivityThread.access$800(ActivityThread.java:145)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1279)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:135)
            at android.app.ActivityThread.main(ActivityThread.java:5240)
            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:899)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'java.util.ArrayList android.os.Bundle.getStringArrayList(java.lang.String)' on a null object reference
at org.tcnjteamandroid.cryptochat.NavigationDrawerFragment.onCreateView(NavigationDrawerFragment.java:96)
at android.support.v4.app.Fragment.performCreateView(Fragment.java:1786)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:920)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1104)
at android.support.v4.app.FragmentManagerImpl.addFragment(FragmentManager.java:1206)
at android.support.v4.app.FragmentManagerImpl.onCreateView(FragmentManager.java:2159)
at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:297)
at android.support.v7.app.ActionBarActivity.onCreateView(ActionBarActivity.java:547)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:727)
            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.ActionBarActivityDelegateBase.setContentView(ActionBarActivityDelegateBase.java:228)
            at android.support.v7.app.ActionBarActivity.setContentView(ActionBarActivity.java:102)
            at org.tcnjteamandroid.cryptochat.drawer.onCreate(drawer.java:53)
            at android.app.Activity.performCreate(Activity.java:5933)
            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2252)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2361)
            at android.app.ActivityThread.access$800(ActivityThread.java:145)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1279)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:135)
            at android.app.ActivityThread.main(ActivityThread.java:5240)
            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:899)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
the code I am using to pass this information and pick it up is as follows:
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_drawer);
mNavigationDrawerFragment = (NavigationDrawerFragment)
getSupportFragmentManager().findFragmentById(R.id.navigation_drawer);
mTitle = getTitle();
ArrayList<String> menuItems = new ArrayList<String>();
menuItems.add("Test");
Bundle bundle = new Bundle();
bundle.putStringArrayList("edttext", menuItems);
/* set Fragmentclass Arguments */
NavigationDrawerFragment fragobj = new NavigationDrawerFragment();
fragobj.setArguments(bundle);
// Set up the drawer.
mNavigationDrawerFragment.setUp(
R.id.navigation_drawer,
(DrawerLayout) findViewById(R.id.drawer_layout));
}
And the code I am using to pick up the new arguments is:
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
ArrayList<String> strtext = getArguments().getStringArrayList("edttext");
mDrawerListView = (ListView) inflater.inflate(
R.layout.fragment_navigation_drawer, container, false);
mDrawerListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
selectItem(position);
}
});
mDrawerListView.setAdapter(new ArrayAdapter<String>(
getActionBar().getThemedContext(),
android.R.layout.simple_list_item_activated_1,
android.R.id.text1,
strtext));
mDrawerListView.setItemChecked(mCurrentSelectedPosition, true);
return mDrawerListView;
}
Any help I could get would be greatly appreciated!
you can use a class with static ArrayList property
public class Values
{
public static ArrayList<String> myArrayList;
}
in the activity:
ArrayList<String> menuItems = new ArrayList<String>();
Values.myArrayList = menuItems;
in the fragment
ArrayList<String> strtext = Values.myArrayAdapter;

NullPointerException for OnClickListener android Java

I feel bad for asking about this but for 2 hours now I can't find any way to solve this:
**The Problem: ** I have set up a canvas area(where i plot a drawable figure) and a button below the canvas area.
In my AnimatedView class I want find the button and give it an onClickListener, but it returns a NullPointerException.
my activity_main.xml:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_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"
android:orientation="vertical"
android:background="#000000">
<com.example.julle.bounce.AnimatedView
android:id="#+id/anim_view"
android:layout_height="300dp"
android:layout_width="fill_parent"/>
<Button
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_below="#+id/anim_view"
android:id="#+id/button_jump"
android:clickable="true"
android:text="Jump"/>
my code for AnimatedView.java:
package com.example.julle.bounce;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.drawable.BitmapDrawable;
import android.os.Handler;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
public class AnimatedView extends ImageView{
private Context mContext;
int x = -1;
int y = -1;
private int xVelocity = 10;
private int yVelocity = 5;
private Handler h;
private final int FRAME_RATE = 30;
boolean jump=false;
public AnimatedView(Context context, AttributeSet attrs) {
super(context, attrs);
mContext = context;
final Button button = (Button) findViewById(R.id.button_jump);
button.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
jump=true;
}
});
h = new Handler();
}
private Runnable r = new Runnable() {
#Override
public void run() {
invalidate();
}
};
protected void onDraw(Canvas c) {
BitmapDrawable ball = (BitmapDrawable) mContext.getResources().getDrawable(R.drawable.ball);
if(jump==true) {
if (y < 0) {
y = this.getHeight() / 2;
} else {
y += yVelocity;
}
jump=false;
}else{
y= this.getHeight()/2;
}
c.drawBitmap(ball.getBitmap(), x, y, null);
h.postDelayed(r, FRAME_RATE);
}
}
and my MainActivity:
package com.example.julle.bounce;
import ...
public class MainActivity extends ActionBarActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
}
I believe I've realised the problem: the buttons are existent in the MainActivity class but not in my AnimatedView class. Allthou it might be very simple, I'm not sure how to solve that.
Thank you for all replies!
Sorry, totally forgot that I changed the code. AnimatedView is updated:
The line that gives NullPointException is line 26 in AnimatedView: button.setOnClickListener...
logcat:
02-24 14:47:32.005 31934-31934/com.example.julle.bounce E/AndroidRuntime﹕ FATAL EXCEPTION: main
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.julle.bounce/com.example.julle.bounce.MainActivity}: android.view.InflateException: Binary XML file line #13: Error inflating class com.example.julle.bounce.AnimatedView
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2110)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2135)
at android.app.ActivityThread.access$700(ActivityThread.java:140)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1237)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4921)
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:1027)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:794)
at dalvik.system.NativeStart.main(Native Method)
Caused by: android.view.InflateException: Binary XML file line #13: Error inflating class com.example.julle.bounce.AnimatedView
at android.view.LayoutInflater.createView(LayoutInflater.java:613)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:687)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:746)
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 android.support.v7.app.ActionBarActivityDelegateBase.setContentView(ActionBarActivityDelegateBase.java:228)
at android.support.v7.app.ActionBarActivity.setContentView(ActionBarActivity.java:102)
at com.example.julle.bounce.MainActivity.onCreate(MainActivity.java:23)
at android.app.Activity.performCreate(Activity.java:5206)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1094)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2074)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2135)
            at android.app.ActivityThread.access$700(ActivityThread.java:140)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1237)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:137)
            at android.app.ActivityThread.main(ActivityThread.java:4921)
            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:1027)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:794)
            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 android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:687)
            at android.view.LayoutInflater.rInflate(LayoutInflater.java:746)
            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 android.support.v7.app.ActionBarActivityDelegateBase.setContentView(ActionBarActivityDelegateBase.java:228)
            at android.support.v7.app.ActionBarActivity.setContentView(ActionBarActivity.java:102)
            at com.example.julle.bounce.MainActivity.onCreate(MainActivity.java:23)
            at android.app.Activity.performCreate(Activity.java:5206)
            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1094)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2074)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2135)
            at android.app.ActivityThread.access$700(ActivityThread.java:140)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1237)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:137)
            at android.app.ActivityThread.main(ActivityThread.java:4921)
            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:1027)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:794)
            at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.NullPointerException
at com.example.julle.bounce.AnimatedView.<init>(AnimatedView.java:26)
            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 android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:687)
            at android.view.LayoutInflater.rInflate(LayoutInflater.java:746)
            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 android.support.v7.app.ActionBarActivityDelegateBase.setContentView(ActionBarActivityDelegateBase.java:228)
            at android.support.v7.app.ActionBarActivity.setContentView(ActionBarActivity.java:102)
            at com.example.julle.bounce.MainActivity.onCreate(MainActivity.java:23)
            at android.app.Activity.performCreate(Activity.java:5206)
            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1094)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2074)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2135)
            at android.app.ActivityThread.access$700(ActivityThread.java:140)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1237)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:137)
            at android.app.ActivityThread.main(ActivityThread.java:4921)
            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:1027)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:794)
            at dalvik.system.NativeStart.main(Native Method)
You can pass a reference to your button from main activity to AnimatedView class.
package com.example.julle.bounce;
import ...
public class MainActivity extends ActionBarActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button btn = (Button)findViewByID(R.id.button_jump);
AnimatedView av = (AnimatedView)findViewByID(R.id.anm_view);
av.setJumpButton(btn);
}
}
You will need to add the setJumpButton method in your AnimatedView class.

Categories