你要在.xml文件里面加一个android:state_pressed="false"<selector xmlns:android="http://schemas.android.com/apk/res/android">
  <item android:state_pressed="false" android:drawable="@drawable/默认图片" />
   <item android:state_pressed="true"
   android:drawable="@drawable/bingrenyilan_click" /> <!-- pressed -->
   <item android:state_focused="true"
   android:drawable="@drawable/bingrenyilan" /> <!-- focused -->
   <item android:drawable="@drawable/默认图片" /> <!-- default -->
  </selector>