广播接收器的onReceive打开对话框

本文介绍了广播接收器的onReceive打开对话框的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我在建设有广播接收器 Android应用程序，我想显示一个对话框的onReceive 启动时。我想显示在手机上的对话框（用户显示一个对话框，无论他在哪里，像WhatsApp的对话框当你得到一个消息）。

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).

我怎么能这样做？

谢谢！

推荐答案

如果你想显示从内您的广播接收器的的onReceive 一个对话框，您广播接收机里面你可能会启动一个透明的活动与警报对话框，从来不叫的setContentView（）。活动将有一个透明的观点，只有警告对话框将显示。的来源：的show一个警告对话框中广播接收系统重启后

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

有哪些谈论这个话题很多类似的帖子。请参见下面的同样为code样品问题和其他评论：

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

AlertDialog从内部广播接收器？这是可以做到？

how从BroadcastReciever类提出一个警告对话框？

How我可以从Android广播接收器显示一个对话框？

如何设置Alertbox从广播接收器

希望这会有所帮助。