Android编程之控件状态配置文件实例

<selector xmlns:android="http://schemas.android.com/apk/res/android">  <!-- 无状态时 -->  <item    android:state_focused="false"    android:state_selected="false"    android:state_pressed="false"    android:state_enabled="true"    android:drawable="@drawable/blue" />  <!-- 选中状态 -->  <item    android:state_focused="false"    android:state_selected="true"    android:state_pressed="false"    android:state_enabled="true"    android:drawable="@drawable/blue" />  <!-- 获得焦点 -->  <item    android:state_focused="true"    android:state_selected="false"    android:state_pressed="false"    android:state_enabled="true"    android:drawable="@drawable/blue" />  <!-- 按下时的状态 -->  <item    android:state_focused="false"    android:state_selected="false"    android:state_pressed="true"    android:state_enabled="true"    android:drawable="@drawable/blue" /></selector>