【Android开发】如何 使得 android长按按钮=多次按下按钮

发布网友 发布时间：2022-04-21 14:00

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热心网友 时间：2022-04-21 15:29

项目遇到需要实现按键点击同时，如果按住也能实现连续音量加的效果

本办法是通过按下标志开启线程固定间隔时间发送动作

重写setOnTouchListener事件

 

btn_bolumeup.setOnTouchListener(new OnTouchListener(){  

            @Override              public boolean onTouch(View v, MotionEvent event)              {                  Log.d("yj.chen","onTouch");                     if(event.getAction() == MotionEvent.ACTION_DOWN) {                         Log.d("yj.chen","ACTION_DOWN");                         longClicked = true;                         btn_bolumeup.setBackgroundResource (R.drawable.haier_pop_btn_nor_m);//                         Thread t = new Thread(){                             @Override                             public void run(){                                 super.run();                                 while(longClicked)                                 {                                     sendcode = 24;                                     sendkeyenvet();                                     try{                                         Thread.sleep(250);                                     }catch(InterruptedException e){                                         e.printStackTrace();                                     }                                     Log.d("yj.chen","run end");                                 }                             }                         };                         t.start();                                              } else if(event.getAction() == MotionEvent.ACTION_UP) {                         btn_bolumeup.setBackgroundResource (R.drawable.touch_control_btn);//touch_control_btn haier_pop_btn_sel_m                         longClicked = false;                         Log.d("yj.chen","ACTION_UP");                     }                  return true;                  }          });  

热心网友 时间：2022-04-21 16:47

onTouchEvent
按下时，handler 发送message， 处理时，开启更新ui的线程，
松开时，删除message，