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POAndroid: DatePicker not working inside Activity
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copied!<p>In my application I have a Tabbar and I am using ActivityGroup to load contents into each tab as shown below.</p> <pre><code>public class FirstGroup extends ActivityGroup { // Keep this in a static variable to make it accessible for all the nesten activities, lets them manipulate the view public static FirstGroup group; // Need to keep track of the history if you want the back-button to work properly, don't use this if your activities requires a lot of memory. private ArrayList<View> history; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); this.history = new ArrayList<View>(); group = this; // Start the root activity withing the group and get its view View view = getLocalActivityManager().startActivity("FlightsActivity", new Intent(this,FlightsActivity.class) .addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)) .getDecorView(); // Replace the view of this ActivityGroup replaceView(view); } public void replaceView(View v) { // Adds the old one to history history.add(v); // Changes this Groups View to the new View. setContentView(v); } </code></pre> <p>i have an image inside the FlightsActivity activity class and on the onClick event of the image I need a datepicker to be displayed.I have written the code for that and it was working fine when I was directly specifying FlightsActivity as the content of the tab instead of loading it through the ActivityGroup.But now i am getting an error</p> <pre><code>10-20 14:11:16.302: ERROR/AndroidRuntime(294): FATAL EXCEPTION: main 10-20 14:11:16.302: ERROR/AndroidRuntime(294): android.view.WindowManager$BadTokenException: Unable to add window -- token android.app.LocalActivityManager$LocalActivityRecord@43e497e0 is not valid; is your activity running? 10-20 14:11:16.302: ERROR/AndroidRuntime(294): at android.view.ViewRoot.setView(ViewRoot.java:505) 10-20 14:11:16.302: ERROR/AndroidRuntime(294): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:177) 10-20 14:11:16.302: ERROR/AndroidRuntime(294): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:91) 10-20 14:11:16.302: ERROR/AndroidRuntime(294): at android.view.Window$LocalWindowManager.addView(Window.java:424) 10-20 14:11:16.302: ERROR/AndroidRuntime(294): at android.app.Dialog.show(Dialog.java:241) 10-20 14:11:16.302: ERROR/AndroidRuntime(294): at android.app.DatePickerDialog.show(DatePickerDialog.java:129) 10-20 14:11:16.302: ERROR/AndroidRuntime(294): at android.app.Activity.showDialog(Activity.java:2556) 10-20 14:11:16.302: ERROR/AndroidRuntime(294): at android.app.Activity.showDialog(Activity.java:2514) 10-20 14:11:16.302: ERROR/AndroidRuntime(294): at tabviewapp.com.FlightsActivity$10.onClick(FlightsActivity.java:166) 10-20 14:11:16.302: ERROR/AndroidRuntime(294): at android.view.View.performClick(View.java:2408) 10-20 14:11:16.302: ERROR/AndroidRuntime(294): at android.view.View$PerformClick.run(View.java:8816) 10-20 14:11:16.302: ERROR/AndroidRuntime(294): at android.os.Handler.handleCallback(Handler.java:587) 10-20 14:11:16.302: ERROR/AndroidRuntime(294): at android.os.Handler.dispatchMessage(Handler.java:92) 10-20 14:11:16.302: ERROR/AndroidRuntime(294): at android.os.Looper.loop(Looper.java:123) 10-20 14:11:16.302: ERROR/AndroidRuntime(294): at android.app.ActivityThread.main(ActivityThread.java:4627) 10-20 14:11:16.302: ERROR/AndroidRuntime(294): at java.lang.reflect.Method.invokeNative(Native Method) 10-20 14:11:16.302: ERROR/AndroidRuntime(294): at java.lang.reflect.Method.invoke(Method.java:521) 10-20 14:11:16.302: ERROR/AndroidRuntime(294): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868) 10-20 14:11:16.302: ERROR/AndroidRuntime(294): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) 10-20 14:11:16.302: ERROR/AndroidRuntime(294): at dalvik.system.NativeStart.main(Native Method) </code></pre> <p>Below is my code for implementing the datepicker:</p> <pre><code>mPickDate = (ImageView) findViewById(R.id.pickDate); mPickDate.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { showDialog(DATE_DIALOG_ID); } }); @Override protected Dialog onCreateDialog(int id) { switch (id) { case DATE_DIALOG_ID: return new DatePickerDialog(this, mDateSetListener, mYear, mMonth, mDay); case DATE_DIALOG_ID_RETURN: return new DatePickerDialog(this, mDateSetListenerreturn, mYear, mMonth, mDay); } return null; } // updates the date in the TextView private void updateDisplay(TextView mDateDisplay) { mDateDisplay.setText( new StringBuilder() // Month is 0 based so add 1 .append(mDay).append("-") .append(mMonth + 1).append("-") .append(mYear).append("") ); } private DatePickerDialog.OnDateSetListener mDateSetListener = new DatePickerDialog.OnDateSetListener() { public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) { mYear = year; mMonth = monthOfYear; mDay = dayOfMonth; updateDisplay(mDateDisplay); } }; private DatePickerDialog.OnDateSetListener mDateSetListenerreturn = new DatePickerDialog.OnDateSetListener() { public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) { mYear = year; mMonth = monthOfYear; mDay = dayOfMonth; updateDisplay(mDateDisplayreturn); } }; </code></pre>

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