更改列表视图项的背景时clicke [英] change listview item background when clicke

问题描述

我有一个列表视图，我想，当我点击一排，其背景变为蓝色。我用这个code：

I have a listview and i want to when i click on a row, its background changes to blue. i use this code:

listView1.setOnItemClickListener(new OnItemClickListener() {
                        public void onItemClick(AdapterView<?> parent, View view,
                                int position, long id) {
                            // TODO Auto-generated method stub
                            parent.getChildAt(position).setBackgroundColor(Color.BLUE);
                        }

                    });

本作品机智一些错误。当我在第一个项目点击，它变成蓝色，但项目＃3和＃5变为蓝色太！我不能明白为什么！我只是想唯一入选的项目将变为蓝色！

this works wit some wrong. when i click on first item, it turns to blue but item #3 and #5 changes to blue too!!! i cant understand why!! i just want only selected item turns to blue!!!

推荐答案

有关使用选择什么？他们正常工作，并提供清晰的解决方案。

What about to use selectors? They works properly and provide clean solution.

listselector.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/normal" />

    <item
        android:state_selected="true"
        android:state_focused="false"
        android:drawable="@drawable/hover" 
        />

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

normal.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle"
     >
    <solid 
        android:color="#cccccc"
        />
</shape>

hover.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle"
     >
    <solid 
        android:color="#dddddd"
        />
</shape>

的用法

<ListView
   android:id="@+id/list"
   android:layout_width="fill_parent"
   android:layout_height="wrap_content"
   android:listSelector="@drawable/listselector"
/>

Key属性是设置的android：listSelector =@绘制/ listselector您的ListView

您可以在形状上也渐变属性，而不是纯色使用。而对于更多的细节，你也可以看看教程 Android的自定义的ListView 。

You can use in shape also gradient property instead of solid color. And for more details also you can look at tutorial Android Custom ListView.

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