从服务启动活动到前台

Question

Basically, I want to pop up a dialog into foreground from a background service (I know using notification would be more user-friendly, but my app really needs immediate response from user). I have my service working. Then I define an activity that contains the dialog using android:theme="@android:style/Theme.Translucent.NoTitleBar" .

In the service code, I start the dialog activity like this:

Intent intent = new Intent(getApplicationContext(), PopUpDialogActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);

The dialog can pop up if I'm in my app. But if I'm not in my app, the dialog doesn't pop up in foreground (I have to enter my app to see it). How can I start it directly into user focus?

Answer 1

If your service is bound to an activity then it will die when you exit your activity or app. Use onPause() and onResume() to unbind and bind to the service so that it doesn't get killed when you exit/return.