我正在构建一个Android应用程序,BroadcastReceiver我想在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).
BroadcastReceiver
onReceive
我怎么能这样做？
谢谢!
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