Android Broadcast Mechanism

Android Broadcast Mechanism

Method 1: static registration

Step 1:

Mybroadcastreceiver extends broadcastreceiver

Override the onreceive (context CT, intent) method to complete the work you want.

Step 2:

 

Register the Declaration in androidmanifest. xml:

 

<Cycler Android: Name = ". ringermodechangedreceiver">
<Intent-filter>
<Action Android: Name = "android. Media. ringer_mode_changed"/>
</Intent-filter>
</Cycler>

 

Method 2: Dynamic Registration

Write two methods in myactivity:

For example, register a broadcast receiver when myactivity is started and cancel the broadcast receiver when myactivity is destroyed.

Check the Code:

Public void oncreate (bundle ){

 

Registerreceiver (mybroadcastreceiver, new intentfilter ("custom or system string "));

 

}

 

Public void ondestory (){

 

Unregisterreceiver (mybroadcastrecevier );

 

}

(Static registration of broadcast is not allowed for some events, such as checking the remaining battery of the cell phone)