如何通过广播接收器刷新界面

第一步：注册广播
public void registerBoradcastReceiver() {
IntentFilter myIntentFilter = new IntentFilter();
myIntentFilter.addAction(ComParams.ACTION_UPDATE_USER);
registerReceiver(receiver, myIntentFilter);
}


private BroadcastReceiver receiver = new BroadcastReceiver() {//内部类
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (action.equals(ComParams.ACTION_UPDATE_USER)) {
//接收广播消息刷新界面
}
}
};

第二步：发送广播消息

Intent intent  =  new Intent(ComParams.ACTION_UPDATE_USER);//发送刷新广播
context.sendBroadcast(intent);



第三步：在Activity生命周期结束的时候取消注册


protected void onDestroy() {
super.onDestroy();
try {
super.onDestroy();
ULog.i(TAG, "onDestroy ===> unregisterReceiver");
if (receiver != null) {
unregisterReceiver(receiver);
}
} catch (Exception e) {
e.printStackTrace();
}
}

 

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