Android 广播的发送与接收

/*
发送广播
*/
private void sendBroadCast() {
Intent intent = new Intent(Constants.SEND_DYNAMIC_CHANGE_ACTION)//参数是action的值
mContext.sendBroadcast(mIntent);
}

/*
接收广播
private BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() {
public void onReceive(Context context,Intent intent) {
String action = intent.getAction();
if(action.equals(Constants.SEND_DYNAMIC_CHANGE_ACTION)) {
//执行广播要处理的内容
}
}
}
*/

/*
注册广播
*/
private void regesiterVroadcast() {
IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction(Constants.SEND_DYNAMIC_CHANGE_ACTION);
if(mBroadcastReceiver != null) {
mContext.regesiterReceiver(mBroadcastReceiver,intentFilter);
}
}

/*
关闭广播
*/
if(mBroadcastReceiver != null) {
mContext.unregesiterReceiver(mBroadcastReceiver);//关闭广播
}