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Most people do not understand the knowledge points of this article "how to use broadcast to achieve static registration in Android", so the editor summarizes the following content, detailed content, clear steps, and has a certain reference value. I hope you can get something after reading this article. Let's take a look at this article "how to achieve static registration by broadcasting in Android".

The broadcasting mechanism in Android is more flexible, because each application can register the broadcasts it is interested in, so that the program only needs to receive the broadcast content it cares about, such as shutting down and starting WiFi.

There are two main types of broadcasts in Android:

Standard broadcast, is a completely asynchronous broadcast, after the broadcast is sent, all receivers will receive the broadcast, and almost at the same time, so there is no order before and after the broadcast, the efficiency is very high. But it also means that it can't be intercepted.

An orderly broadcast is a broadcast executed synchronously. After the broadcast is sent, only one receiver will receive the broadcast message at the same time. When all the logic of this receiver has been executed, the broadcast will continue to be transmitted to the next receiver. At this time, the receiver with high priority will receive the broadcast first and can intercept the broadcast.

So in broadcasting, the most basic thing is to register the broadcast receiver statically.

First create a new Java class, through "New/Other/Broadcast Receiver", name it MyReceiver, and add the following

Public MyReceive {public void OnReceive (Context context,Intent intent) {Toast.maetText (context, "receive a broadcast", toast.LENGTH_LONG) .show ();}}

Then add a class to MainAcitivity

Public void sendBc (View view) {sendBroadcast (new Intent (this.MyReceive.class));}

Then register with AndroidManifest.xml

Finally, create a new Button in XML and add an onclick

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