如何将数据从线程发送到主活动java android

我有一个线程，我想做一些计算，然后发送到我的程序的主要活动。我怎么能做到

线是

class RemindTask extends TimerTask {
    public void run() {
        flag = true;
        System.out.println(" Hello World!");
        for (int e=0; e<2; e++){
            fileToReceive = fileparts.peek();
            System.out.println("fileToReceive "+fileToReceive);
            fileToReceive = fileparts.remove();
        }
        IntegerResult = 4;
        flag=false; 
    }

然后我需要把IntegerResult带到主活动 大体上如此 主要方法是

int i=0;
//IntegerResult = 4; here i need to take the result of the thread
while (!fileparts.isEmpty()  ) { //&& !fileparts1.isEmpty() && (flag == false) 
    String[] myStringArray = new String[IntegerResult];
    for (int e=0; e<IntegerResult; e++){
        if (fileToReceive != null && !fileparts.isEmpty() ){
            fileToReceive = fileparts.peek();
            myStringArray[e] =  fileToReceive;
            fileToReceive = fileparts.remove();
         } else {
            myStringArray[e] =  " ";
         }
         System.out.println("myStringArray["+e+"] " + myStringArray[e]);
    }

inti=0；
//积分结果=4；这里我需要获取线程的结果
而（！fileparts.isEmpty（））{/&&！fileparts1.isEmpty（）&&（flag==false）
字符串[]myStringArray=新字符串[IntegerResult]；
对于（int e=0；e更新

使用自定义
BroadcastReceiver

在ActivityA.java中写下这个

 Intent intent = new Intent();
 intent.putExtra("message","hi");
 intent.setAction("com.android.activity.SEND_DATA");
 sendBroadcast(intent); 

private BroadcastReceiver mMessageReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
   // Extract data included in the Intent
   String message = intent.getStringExtra("message");
   Log.d("receiver", "Got message: " + message);
  }
};

在ServiceA.java/ActivityB.java中编写

 Intent intent = new Intent();
 intent.putExtra("message","hi");
 intent.setAction("com.android.activity.SEND_DATA");
 sendBroadcast(intent); 

private BroadcastReceiver mMessageReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
   // Extract data included in the Intent
   String message = intent.getStringExtra("message");
   Log.d("receiver", "Got message: " + message);
  }
};

现在注册
Receiver

LocalBroadcastManager.getInstance(mContext).registerReceiver(mMessageReceiver,
  new IntentFilter("com.android.activity.SEND_DATA"));   

看来你需要的是

您可以按照Rstar的建议使用服务，但这可能有点过头了。
有两种方法：

如前所述，在异步任务上使用此选项
创建一个处理程序来接收响应
比如：

public static int YOUR_INT_MESSAGE = 100;

class RemindTask extends TimerTask {
    public void run() {
        flag = true;
        System.out.println(" Hello World!");
        for (int e=0; e<2; e++){
            fileToReceive = fileparts.peek();
            System.out.println("fileToReceive "+fileToReceive);
            fileToReceive = fileparts.remove();
        }
        IntegerResult = 4;
        flag=false; 
        Message msg = new Message();
        msg.what = YOUR_INT_MESSAGE;
        msg.obj = IntegerResult;
        YourActivity.this.handler.sendMessage(msg);
    }

public static int YOUR_int_MESSAGE=100；
类任务扩展TimerTask{
公开募捐{
flag=true；
System.out.println（“你好，世界！”）；
对于（int e=0；这是一个常见问题解答。您应该考虑使用
阻止队列
，例如
LinkedBlockingQueue
。它允许多个线程共享信息，并为您处理所有同步和信令。如果您的答案中只包含一个链接，则应将其作为注释发布。