按下时设置 ListView 选择器颜色时出现问题

Question

我有以下 ListView，并且遵循了这个 SO Question 的答案，但没有运气：

Android ListView Selector Color

<ListView android:layout_width="fill_parent"
            android:layout_height="fill_parent" xmlns:android="http://schemas.android.com/apk/res/android"
            android:id="@+id/ARListView" 
            android:background="@drawable/transparent_background" 
            android:cacheColorHint="#00000000" 
            android:listSelector="@drawable/ar_selector" 
            android:drawSelectorOnTop="true">

这是我的 ar_selector.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
  <item android:state_enabled="false" android:state_focused="true"
        android:drawable="@android:color/transparent" />
  <item android:state_pressed="true"
        android:drawable="@color/solid_red" />
  <item android:state_focused="true"
        android:drawable="@android:color/transparent" />
</selector>

当我按下 ListViewItem 时，什么也没有出现。

Answer 1

Alam，使用此代码：

list_selector.xmlgradient_bg.xmlgradient_bg_hover.xml

  <?xml version="1.0" encoding="utf-8"?>
  <selector xmlns:android="http://schemas.android.com/apk/res/android">
  <item
   android:state_selected="false"
    android:state_pressed="false"
    android:drawable="@drawable/gradient_bg" />

  <item android:state_pressed="true"
    android:drawable="@drawable/gradient_bg_hover" />

  <item android:state_selected="true"
 android:state_pressed="false"
    android:drawable="@drawable/gradient_bg_hover" />
 </selector>

-

 <shape xmlns:android="http://schemas.android.com/apk/res/android"
  android:shape="rectangle">
  <gradient
  android:startColor="#f1f1f2"
  android:centerColor="#e7e7e8"
  android:endColor="#cfcfcf"
  android:angle="270" />
  </shape>

Sheehan

  <?xml version="1.0" encoding="utf-8"?>
  <shape xmlns:android="http://schemas.android.com/apk/res/android"
  android:shape="rectangle">
   <gradient
  android:startColor="#18d7e5"
    android:centerColor="#16cedb"
  android:endColor="#09adb9"
  android:angle="270" />
  </shape>