BroadcastReceiver onReceive open dialog

问题

I'm building an android application with BroadcastReceiver and I want to show a dialog when onReceive starts. I want to show the dialog on the phone (show the user a dialog no matter where he is, like the whatsapp dialog when you get a message).

How I can do that?

Thanks!

回答1:

If you want to show a dialog from inside your onReceive of the BroadcastReceiver, inside your broadcast receiver you may start a transparent activity with an alert dialog and NEVER called setContentView(). The activity will have an transparent view and only the alert dialog will show. Source: show an alert dialog in broadcast receiver after a system reboot

There are many similar posts which talk about this topic. See below questions for code samples and other reviews on the same:

2. AlertDialog from within BroadcastReceiver?? Can it be done?

3. How to raise an alert dialog from BroadcastReceiver class?

4. How can I display a dialog from an Android broadcast receiver?

5. How to setup Alertbox from BroadcastReceiver

Hope this will help.

来源：https://stackoverflow.com/questions/17906037/broadcastreceiver-onreceive-open-dialog