android学习笔记之多线程（二）

这个需要在输出，点击start后会隔一会输出一行字，点end会结束输出。

 

Code

package tk.handleractivity;



import android.app.Activity;

import android.os.Bundle;

import android.os.Handler;

import android.view.Menu;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;







public class MyHangler extends Activity {



	private Button startButton=null;

	private Button endButton=null;

	

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.myhangler);

        startButton=(Button)findViewById(R.id.startButton);

        startButton.setOnClickListener(new StartbuttonListener());

        endButton=(Button)findViewById(R.id.endButton);

        endButton.setOnClickListener(new EndbuttonListener());

        

        

    }



    class StartbuttonListener implements OnClickListener{

		@Override

		public void onClick(View v) {

			handler.post(updateThead);

		}    	

    }

    class EndbuttonListener implements OnClickListener{

		@Override

		public void onClick(View v) {

			handler.removeCallbacks(updateThead);

		}    	

    }

    

    @Override

    public boolean onCreateOptionsMenu(Menu menu) {

        getMenuInflater().inflate(R.menu.myhangler, menu);

        return true;

    }

    Handler handler=new Handler();

    Runnable updateThead=new Runnable() {

		

		@Override

		public void run() {

			System.out.println("UpdateThead");

			handler.postDelayed(updateThead, 3000);

		}

	};

}