Question

I have an activity and layout that I want to be able to start on top of whatever application is currently open on the phone or the home screen, but i want the activity to start in a semi transparent pop-like window that the user can interact with. I’m not sure where to start, any help would be great

Answer 1

If you are starting your activity from a service, you can do something like this:

Intent dialogIntent = new Intent(getBaseContext(),DialogActivity.class);
                    // If invoking from outside app activity, needs to include 
                    // New task flag.
                    dialogIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                    getApplication().startActivity(dialogIntent);

Your activity can have a dialog theme so that it is shown as a dialog.