BroadcastReceiver onReceive打开对话框(BroadcastReceiver onReceive open dialog)

BroadcastReceiver onReceive打开对话框(BroadcastReceiver onReceive open dialog)

我正在使用BroadcastReceiver构建一个Android应用程序，我希望在onReceive启动时显示一个对话框。 我想在手机上显示对话框（无论他在哪里，都会向用户显示一个对话框，比如收到消息时的whatsapp对话框）。

我怎么能这样做？

谢谢！

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!

最满意答案

如果你想在广播接收器的onReceive中显示一个对话框，你可以在广播接收器内启动一个带有警告对话框的透明活动，并且从不调用setContentView() 。 活动将具有透明视图，仅显示警报对话框。 来源： 系统重启后在广播接收器中显示警告对话框

有很多类似的帖子谈论这个话题。 有关代码示例和相同的其他评论，请参阅以下问题：

BroadcastReceiver中的AlertDialog ?? 可以吗？

如何从BroadcastReceiver类引发警报对话框？

如何从Android广播接收器显示对话框？

如何从BroadcastReceiver设置Alertbox

希望这会有所帮助。

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:

AlertDialog from within BroadcastReceiver?? Can it be done?

How to raise an alert dialog from BroadcastReceiver class?

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

How to setup Alertbox from BroadcastReceiver

Hope this will help.