利用廣播傳遞數據,肯定需要用Intent或者bundle,那首先第一步:
一、註冊廣播接收器
public class MainActivity extends AppCompatActivity {
MyReceiver myReceiver;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//註冊廣播接收器
myReceiver = new MyReceiver();
IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction("com.fengchi.broadcastreceiver.MYRECEIVER");
registerReceiver(myReceiver, intentFilter);
}
}
二、發送廣播(在這個步驟進行傳遞數據)
// "com.fengchi.broadcastreceiver.MYRECEIVER"與註冊廣播時的action保持一致
Intent intent = new Intent("com.fengchi.broadcastreceiver.MYRECEIVER");
intent.putExtra("ID", ID); //向廣播接收器傳遞數據
sendBroadcast(intent);
三、廣播接收器的實現類(可以是內部類也可以是外部類)
public BroadcastReceiver MyReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
Log.d(TAG, "action = " + action);
if (action.equals("com.fengchi.broadcastreceiver.MYRECEIVER")) {
// 接收到廣播傳來的數據
int ID =intent.getIntExtra("ID");
ToastUtils.showToast_Now(mContext,ID + "");
}else{
ToastUtils.showToast_Now(mContext,"");
}
}
};