点击ImageButton时有“按下”的效果的实现

1为ImageButton添加图片后,有边框,看起来像是图片贴在了一个按扭上面,要多丑有多丑。

解决办法:ImageButton背景设为透明:#0000

2.使用Button时为了让用户有“按下”的效果,有两种实现方式:

A.

  1. imageButton.setOnTouchListener(new OnTouchListener(){     
  2.                         @Override    
  3.                         public boolean onTouch(View v, MotionEvent event) {     
  4.                                 if(event.getAction() == MotionEvent.ACTION_DOWN){     
  5.                                         //更改为按下时的背景图片     
  6.                                         v.setBackgroundResource(R.drawable.pressed);     
  7.                                 }else if(event.getAction() == MotionEvent.ACTION_UP){     
  8.                                         //改为抬起时的图片     
  9.                                         v.setBackgroundResource(R.drawable.released);     
  10.                                 }     
  11.                                 return false;     
  12.                         }     
  13.                 });    

 

B.

  1. <?xml version="1.0" encoding="UTF-8"?>    
  2. <selector xmlns:android="http://schemas.android.com/apk/res/android">    
  3.     <item android:state_pressed="false"  android:drawable="@drawable/button_add" />    
  4.     <item android:state_pressed="true"   android:drawable="@drawable/button_add_pressed" />    
  5.     <item android:state_focused="true"    android:drawable="@drawable/button_add_pressed" />    
  6.     <item android:drawable="@drawable/button_add" />    
  7. </selector>    
posted @ 2014-10-24 01:18  MMLoveMeMM  阅读(491)  评论(0编辑  收藏  举报