Question

我正在做一个Android应用程序，我想从活动中获取数据到服务然后这个服务会发出通知并将数据发送到另一个活动，用户可以在活动中看到结果吗？请帮我

Answer 1

将此内容写入您要发送数据的活动中:( msg是您要发送的数据）

    Intent myintent = new Intent("package name of class where you want to send");
    myintent.putExtra("message", msg);
    myintent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);//You might need this
    getApplicationContext().sendBroadcast(myintent);

在接收者活动的onCreate（）中：添加:(设置内容视图后的任何地方）

         getApplicationContext().registerReceiver(broadcastReceiver, new IntentFilter("package name of current class i.e receiver"));

在课堂上添加：

private BroadcastReceiver broadcastReceiver = new BroadcastReceiver() {
    @Override
    public void onReceive(Context context, Intent intent) {
          Log.d(TAG, "Data received is : " +  intent.getStringExtra("message"));
   //Make a Notification here
    }
};

另外（在接收者活动中）：

  @Override
public void onResume() {
    super.onResume();
    getApplicationContext().registerReceiver(broadcastReceiver, new IntentFilter("package name of current class i.e receiver"));
}

protected void onPause() {
    super.onPause();
    getApplicationContext().unregisterReceiver(broadcastReceiver);
}

在活动和服务android之间共享数据

1 个答案: