如何清除緩衝區？

我寫了一個類可以從藍牙串行端口收到的文本，但是當我送「一」之後我發「KKKK」敬酒「akkk」它敬酒「KKKK」，爲什麼？它應該的成績beyound考慮我應該怎麼做，使之士「是」我可以清除緩衝區，如何清除緩衝區？

這裏怎麼是我的代碼：？？

class RecieveThread extends Thread { 
private final InputStream mmInStream; 
@TargetApi(Build.VERSION_CODES.ECLAIR) 
protected RecieveThread(BluetoothSocket socket) { 
     InputStream tmpIn = null; 
     try { 
      tmpIn = socket.getInputStream(); 
     } catch (IOException ignored) { } 
     mmInStream = tmpIn; 
    } 
public void run() { 
     Looper.prepare(); 
     byte[] buffer = new byte[1024]; 
     int bytes; 
     while (true) {  
      try {  
       bytes = mmInStream.read(buffer); 
       String str = new String(buffer); 
       handler.obtainMessage(READ, bytes, -1, str) 
        .sendToTarget(); 
      } catch (Exception e) { 
       s=e.getMessage(); 
       System.out.print(s); 
       h=false; 
       break; 
      } 
     } 
     Looper.loop(); 
    }  
} 

Handler handler = new Handler() { 
    @Override 
    public void handleMessage(Message msg) { 
     super.handleMessage(msg); 
     if (msg.what==READ) { 
      String str = (String)msg.obj; 
      Toast.makeText(MyService.this,msg.str+"",Toast.LENGTH_SHORT).show(); 
     } 
     else if(h==false) 
      Toast.makeText(MyService.this,"Failed："+s+".",Toast.LENGTH_SHORT).show(); 
    } 
};

來源

2015-05-04 tsymiar

bytes = mmInStream.read(buffer); 
String str = new String(buffer);

常見問題。你無視數量。

bytes = mmInStream.read(buffer); 
String str = new String(buffer, 0, bytes);

來源

2015-05-04 03:05:10 EJP

如何清除緩衝區？

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