Question

I am creating an Android widget. My widget has a View that when clicked opens an Activity that’s look like an Dialog.

I have updated AndroidManifest.xml to style this activity like a dialog.

<activity 
    android:name=".Widget.Widget_OeffneDialog" 
    android:theme="@android:style/Theme.Dialog">
</activity>

That runs fantastic.

Now I open the app from this Widget and click on the home button (the app is now in the background) and then click on the wdget the Dialog shows – but the rest of the app shows behind the dialog.

Like here:

I do not want to see the previous activity below the dialog activity – how do I do this?

Answer 1

When you are launching the Widget_OeffneDialog activity from the launcher, Android is simply resuming the instance that is currently in the background – along with whatever backstack and history it contains.

Try forcing your widget to launch a new instance of the activity instead.

Intent intent = new Intent(this, A.class);
intent.setFlag(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);