Android - Build a notification, TaskStackBuilder.addParentStack not working

Question

I\'m trying to launch an activity from a notification like the Android docs explain, but when I open the notification and then press the back button, the HomeActivity (paren

Answer 1

You need to add the parent stack for the activity you're launching, not the parent of it.

Replace:

stackBuilder.addParentStack(MainActivity.class);

with:

stackBuilder.addParentStack( MatchActivity.class );

This assumes that you've defined the parent in your Manifest (API 16+):

<activity android:name=".MatchActivity"
    android:parentActivityName=".MainActivity"
    ... />

If you're developing for under API 16, then you have to define the parent as:

<activity android:name=".MatchActivity">
    <meta-data
        android:name="android.support.PARENT_ACTIVITY"
        android:value=".MainActivity" />
</activity>

Answer 2

For me the stackBuilder.addParentStack didn't work.

I end up doing this, hope this could helps you.

    Intent intent = new Intent(context, MatchActivity.class);

    TaskStackBuilder stackBuilder = TaskStackBuilder.create(context);
    // Adds the back stack for the Intent
    stackBuilder.addNextIntentWithParentStack(new Intent(context, MainActivity.class));
    stackBuilder.addNextIntent(intent);
    PendingIntent pendingIntent = stackBuilder.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT);

Answer 3

I had the same problem! Solve:

switch to

PendingIntent resultPendingIntent = 

PendingIntent.getActivity( this, 0, resultIntent, PendingIntent.FLAG_UPDATE_CURRENT);

PendingIntent resultPendingIntent = 

stackBuilder.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT);

Answer 4

If you use code generation in your project (like Dagger) the MainActivity.class should be replaced with the MainActivity_.class (or whatever your parent activity name is). Took me a whole day to figure this out. Hope this can save someone's day.

Answer 5

Using TaskStackBuilder didn't solve my problem and works only for Honeycomb and greater. So I take the following solution (please, don't crucify me):

1. Call MainActivity instead of MatchActivity, passing MatchActivity as argument (by Intent).
2. In MainActivity.onCreate, start the MatchActivity if the parameter is available.

New code:

Intent resultIntent = new Intent(context, MainActivity.class) //
        .putExtra(MainActivity.ACTIVITY_EXTRA, MatchActivity.class.getName()) //
        .putExtra("Pass extras to MatchActivity", "if you want! :)");

PendingIntent pendingIntent = PendingIntent.getActivity(context, visitId, resultIntent, PendingIntent.FLAG_UPDATE_CURRENT);

Notification notification = new NotificationCompat.Builder(context) //
            .setContentIntent(pendingIntent) //
            .build();

On MainActivity:

public static final String ACTIVITY_EXTRA = "activity";

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    if (getIntent().getStringExtra(ACTIVITY_EXTRA) != null) {
        startActivity(new Intent(getIntent()).setClassName(this, getIntent().getStringExtra(ACTIVITY_EXTRA)));
    }
    ...
}

Answer 6

Intent resultIntent = new Intent(App.getContext(), TargetActivity.class);
Intent backIntent = new Intent(App.getContext(), ParentActivity.class);
backIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
final PendingIntent resultPendingIntent = PendingIntent.getActivities(
                                    App.getContext(), 0, 
               new Intent[]{backIntent, resultIntent}, PendingIntent.FLAG_ONE_SHOT);
mNotifyBuilder.setContentIntent(resultPendingIntent);

this solved my problem with Parent stack on Notification Click