android handler.postDelayed在很多地方使用

Question

我有一个应用程序，它显示一个视频。在某些时候，我想提供有关视频地点的信息。例如，历史地名。我使用此代码：

final Handler handler = new Handler(); 
handler.postDelayed(new Runnable() { 
    @Override 
    public void run() { 
    //Do something after 100ms 
    } 
}, 100); 

但是，当我在无数次使用这个postDelayed评论一些消息不显示或超车。延迟显示一些文本的最佳解决方案是什么？例如5秒后显示A文本，15秒后显示B文本，30秒后显示C文本。我的代码如下所示：

 switch() 

     case 1: 
     openVideo(video1) 

     final Handler handler = new Handler(); 
     handler.postDelayed(new Runnable() { 
      @Override 
      public void run() { 
      //my message 
      } 
     }, 4000); 

break; 
     case 2: 

     openVideo(video2) 

     final Handler handler2 = new Handler(); 
     handler2.postDelayed(new Runnable() { 
      @Override 
      public void run() { 
      //my second message 
      } 
     }, 3000); 


     handler2.postDelayed(new Runnable() { 
      @Override 
      public void run() { 
      //my third message 
      } 
     }, 15000); 

break; 

Answer 1

使用多次运行。增加每个文本的持续时间。

int mDuration=0,mAnimationDuration=5000; 


mDuration=mDuration+mAnimationDuration; 

//it called after 5 seconds 
handler.postDelayed(new Runnable() { 
@Override 
public void run() { 
    //Your first text 
} 
}, mDuration); 

mDuration=mDuration+mAnimationDuration; 

//it called after 10 seconds 
handler.postDelayed(new Runnable() { 
@Override 
public void run() { 
//Your second text 
} 
}, mDuration); 

mDuration=mDuration+mAnimationDuration; 

//it called after 15 seconds 
handler.postDelayed(new Runnable() { 
@Override 
public void run() { 
    //Your third text 
} 
}, mDuration); 

Answer 2

使用定时器每一秒......

new Timer().scheduleAtFixedRate(new TimerTask() { 
       @Override 
       public void run() { 
       //put you code here 
       //or set switch case for time 5,10,15 seconds 
       } 
      }, 0, 1000);//put here time 1000 milliseconds=1 second