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POForce-Close when pressing back button
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  1. POForce-Close when pressing back button
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    copied!<p>I get an error if i press the Hardware-Back-Button in one of my Activitys and I cant figure out where the error lies Here is my code:</p> <pre><code>import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import android.app.Activity; import android.content.Context; import android.content.Intent; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.ImageButton; import android.widget.TextView; import android.widget.Toast; public class NoteScreen extends Activity { /** Called when the activity is first created. */ private EditText mTitleText; private EditText mBodyText; private Long mRowId; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.note_screen); setTitle("Edit Note"); mTitleText = (EditText) findViewById(R.id.title); mBodyText = (EditText) findViewById(R.id.note); ImageButton acceptButton = (ImageButton) findViewById(R.id.accept); mRowId = null; Bundle extras = getIntent().getExtras(); if (extras != null) { String title = extras.getString(NotesDbAdapter.KEY_TITLE); String body = extras.getString(NotesDbAdapter.KEY_BODY); mRowId = extras.getLong(NotesDbAdapter.KEY_ROWID); if (title != null) { mTitleText.setText(title); } if (body != null) { mBodyText.setText(body); } } acceptButton.setOnClickListener(new View.OnClickListener() { public void onClick(View view) { Bundle bundle = new Bundle(); bundle.putString(NotesDbAdapter.KEY_TITLE, mTitleText.getText().toString()); bundle.putString(NotesDbAdapter.KEY_BODY, mBodyText.getText().toString()); if (mRowId != null) { bundle.putLong(NotesDbAdapter.KEY_ROWID, mRowId); } Intent mIntent = new Intent(); mIntent.putExtras(bundle); setResult(RESULT_OK, mIntent); finish(); } }); ImageButton cancelButton = (ImageButton) findViewById(R.id.cancel); cancelButton.setOnClickListener(new View.OnClickListener() { public void onClick(View view) { Intent i = new Intent(NoteScreen.this, MainActivity.class); startActivity(i); finish(); } }); // TODO Auto-generated method stub } } </code></pre> <p>Here is my LogCat:</p> <pre><code>11-23 19:59:10.851: E/AndroidRuntime(1009): FATAL EXCEPTION: main 11-23 19:59:10.851: E/AndroidRuntime(1009): java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=0, result=0, data=null} to activity {com.reekapps.simplenote/com.reekapps.simplenote.MainActivity}: java.lang.NullPointerException 11-23 19:59:10.851: E/AndroidRuntime(1009): at android.app.ActivityThread.deliverResults(ActivityThread.java:3319) 11-23 19:59:10.851: E/AndroidRuntime(1009): at android.app.ActivityThread.handleSendResult(ActivityThread.java:3362) 11-23 19:59:10.851: E/AndroidRuntime(1009): at android.app.ActivityThread.access$1100(ActivityThread.java:141) 11-23 19:59:10.851: E/AndroidRuntime(1009): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1282) 11-23 19:59:10.851: E/AndroidRuntime(1009): at android.os.Handler.dispatchMessage(Handler.java:99) 11-23 19:59:10.851: E/AndroidRuntime(1009): at android.os.Looper.loop(Looper.java:137) 11-23 19:59:10.851: E/AndroidRuntime(1009): at android.app.ActivityThread.main(ActivityThread.java:5041) 11-23 19:59:10.851: E/AndroidRuntime(1009): at java.lang.reflect.Method.invokeNative(Native Method) 11-23 19:59:10.851: E/AndroidRuntime(1009): at java.lang.reflect.Method.invoke(Method.java:511) 11-23 19:59:10.851: E/AndroidRuntime(1009): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793) 11-23 19:59:10.851: E/AndroidRuntime(1009): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560) 11-23 19:59:10.851: E/AndroidRuntime(1009): at dalvik.system.NativeStart.main(Native Method) 11-23 19:59:10.851: E/AndroidRuntime(1009): Caused by: java.lang.NullPointerException 11-23 19:59:10.851: E/AndroidRuntime(1009): at com.reekapps.simplenote.MainActivity.onActivityResult(MainActivity.java:171) 11-23 19:59:10.851: E/AndroidRuntime(1009): at android.app.Activity.dispatchActivityResult(Activity.java:5293) 11-23 19:59:10.851: E/AndroidRuntime(1009): at android.app.ActivityThread.deliverResults(ActivityThread.java:3315) 11-23 19:59:10.851: E/AndroidRuntime(1009): ... 11 more 11-23 19:59:43.861: E/Trace(1120): error opening trace file: No such file or directory (2) </code></pre> <p>Does anybody see the error? I have no Idea Thanks in advance</p> <p>EDIT:</p> <pre><code> @Override protected void onActivityResult(int requestCode, int resultCode, Intent intent) { super.onActivityResult(requestCode, resultCode, intent); Bundle extras = intent.getExtras(); switch(requestCode) { case ACTIVITY_CREATE: String title = extras.getString(NotesDbAdapter.KEY_TITLE); String body = extras.getString(NotesDbAdapter.KEY_BODY); mDbHelper.createNote(title, body); fillData(); break; case ACTIVITY_EDIT: Long rowId = extras.getLong(NotesDbAdapter.KEY_ROWID); if (rowId != null) { String editTitle = extras.getString(NotesDbAdapter.KEY_TITLE); String editBody = extras.getString(NotesDbAdapter.KEY_BODY); mDbHelper.updateNote(rowId, editTitle, editBody); } fillData(); break; } } </code></pre> <p>I posted my onActivityResult, maybe the error is somewhere in there.</p>
 

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