selector设置按钮或者一些点击控件在点击时的效果
<?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:drawable="@drawable/ic_toc_white_24dp" android:state_pressed="true"/> <item android:drawable="@drawable/ic_toc_black_24dp" android:state_focused="false" android:state_pressed="false"/> <item android:drawable="@drawable/ic_toc_white_24dp" android:state_focused="true"/> <item android:drawable="@drawable/ic_toc_black_24dp" android:state_focused="false"/> </selector>