将 ListView 中的选择从橙色更改为绿色 [英] Change Selection in a ListView from Orange to Green

问题描述

如何为每个选定的列表项执行此操作.

How do I do this per selected list item.

我尝试将其添加到 android:background

<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_focused="true" 
        android:state_pressed="false"
        android:drawable="@color/android_green" />
    <item android:state_focused="true" 
        android:state_pressed="true"
        android:drawable="@color/black_alpha" />
    <item android:state_focused="false" 
        android:state_pressed="true"
        android:drawable="@color/black_alpha" />
    <item android:drawable="@color/white_alpha" />
</selector> 

但它不起作用，它改变了整个ListView.

but it does not work, it changes the entire ListView.

仍然无法正常工作，这是我目前所拥有的

Still not working, here is what I have so far

::listview_background

::listview_background

<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_focused="true" android:drawable="@color/black_alpha" />
    <item android:drawable="@color/white_alpha" />  
</selector> 

::我的观点是使用上面的

::My view that is using the above

<ListView android:id="@+id/list" android:layout_width="fill_parent"
    android:layout_height="fill_parent" android:layout_below="@+id/round"
    android:listSelector="@drawable/listview_background">
</ListView>

问题是 black_alpha 将应用整个列表，而不仅仅是选定的列表项

The problem is that the black_alpha will apply the the entire list, not just the selected list item

推荐答案

这里有一个 好文章，介绍如何将选择器与列表结合使用.

Here's a good article on how to use selectors with lists.

与其将其设置为ListView的android:background，我相信您希望如下设置android:listSelector:

Instead of setting it to be the android:background of the ListView, I believe you want to set android:listSelector as shown below:

<ListView android:id="@+id/list" 
      android:layout_width="fill_parent"
      android:layout_height="wrap_content" 
      android:layout_gravity="center"
      android:divider="@null" 
      android:dividerHeight="0dip"
      android:listSelector="@drawable/list_selector" />

这篇关于将 ListView 中的选择从橙色更改为绿色的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！