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我正在尝试将数据发送到名为 ToD1 的线程,该线程位于我的 Threads 类的内部类中,然后我需要对其进行一些工作,然后需要将其设置回 UI 线程处理程序我的问题是我将如何调用处理程序发送消息数据?我知道 AsyncTask 并将在以后尝试使用它。这个应用程序的目的是让我学习和理解 Handlers、HandlerThread 和 AsyncTask 的概念,以便我可以在我的编程中使用它们。

这是我的 MainActivity 代码:

public class MainActivity extends Activity implements OnClickListener {
TextView display1;
TextView display2;
EditText cl;
Button enter;
Button tod1;
Button tod2;
Bundle d = new Bundle();
static Handler mHandler;
Message msg;
Object task;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    tod1 = (Button) findViewById(R.id.display1);
    tod2 = (Button) findViewById(R.id.display2);
    enter = (Button) findViewById(R.id.Enter);
    display1 = (TextView) findViewById(R.id.Display1);
    display2 = (TextView) findViewById(R.id.Display2);
    cl = (EditText) findViewById(R.id.CL);

    mHandler = new Handler() {

        @Override
        public void handleMessage(Message msg) {
            // TODO Auto-generated method stub
            super.handleMessage(msg);

        }

    };

}

@Override
public void onClick(View v) {
    // TODO Auto-generated method stub
    switch (v.getId()) {
    case R.id.Enter:
        Bundle in = new Bundle();
        String input = cl.getText().toString();
        d.putString("in", input);
        msg.setData(d);
                   // eclipes ask to resovle d1 varible type?
        d1.sendMessage(msg);
        notifyAll();
        break;
    case R.id.display1:
        break;
    case R.id.display2:
        break;
    }

}

}

这是我的线程类:

public class Threads {

public static class ToD1 {

    Thread display1 = new Thread() {

        @Override
        public void run() {
            // TODO Auto-generated method stub
            super.run();
            Message msg = new Message();
            Bundle b = new Bundle();
            Looper.prepare();
            Handler d1 = new Handler() {

                @Override
                public void handleMessage(Message msg) {
                    // TODO Auto-generated method stub
                    super.handleMessage(msg);

                }

            };

            String output;
            b.putString("key1", "out:" + String.valueOf(output));
            msg.setData(b);
            // Send msg to UI thread handler
                                    // eclipes asked solve mHandler to varible type 
            mHandler.sendMessage(msg);
        }

    };

}

}

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