如何在Android中使用Handler删除Message-创新互联

今天就跟大家聊聊有关如何在Android中使用Handler删除Message，可能很多人都不太了解，为了让大家更加了解，小编给大家总结了以下内容，希望大家根据这篇文章可以有所收获。

Android Handler移除Message详解

问题：

1.removeMessage(what)函数是否只能移除对应what值的Message？

2.对于Delayed发送的Message，能否提前remove？

代码测试：

package javine.k.testhandler; 
 
import android.app.Activity; 
import android.os.Bundle; 
import android.os.Handler; 
import android.os.HandlerThread; 
import android.os.Message; 
import android.util.Log; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.widget.Button; 
 
public class TestHandlerActivity extends Activity implements OnClickListener { 
 
  private Button startBtn; 
  private Button endBtn; 
  public Handler threadHandler; //子线程Handler 
 
  private Handler mHandler = new Handler() { 
    public void handleMessage(android.os.Message msg) { 
      threadHandler.sendEmptyMessageDelayed(1, 2000); 
      Log.d("info", "handle main-thread message..."); 
    }; 
  }; 
 
  @Override 
  protected void onCreate(Bundle savedInstanceState) { 
    // TODO Auto-generated method stub 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main); 
 
    startBtn = (Button) findViewById(R.id.startButton); 
    endBtn = (Button) findViewById(R.id.endButton); 
    startBtn.setOnClickListener(this); 
    endBtn.setOnClickListener(this); 
 
    new Thread(new Runnable() { 
      @Override 
      public void run() { 
        HandlerThread handlerThread = new HandlerThread("handler"); 
        handlerThread.start(); 
        threadHandler = new Handler(handlerThread.getLooper()) { 
          @Override 
          public void handleMessage(Message msg) { 
            //mHandler.sendEmptyMessageDelayed(0, 2000);