Android的ListView控件。如何改变手动选择的项目的背景颜色 [英] Android ListView. How to change background color of manually selected item

问题描述

你能帮助我请。我需要更改手动选择 setSelection（INT POS）功能，我的列表视图项的背景颜色，我需要留在新的颜色，直到新的setSelection电话。我已经阅读了如何做到这一点的一些话题，但我仍然没有更迭。谢谢！

Can You help me please. I need to change background color of my list view item which is selected manually by setSelection(int pos) function and I need to stay with new color until new setSelection call. I have read some topics of how to do this, but I still have no succes. Thanks!

推荐答案

我已经成功地实现了通过几个选择的不同状态

I've managed to accomplish that by making several selectors for the different states

第一次把这个在您的列表视图

first put this in your listview

android:listSelector="@drawable/list_selector"

然后，在绘制控制diferent州创建XML文件

Then create xml files in drawable to control the diferent states

@绘制/ list_selector

<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="@drawable/list_item_bg_normal" android:state_activated="false"/>
<item android:drawable="@drawable/list_item_bg_pressed" android:state_pressed="true"/>
<item android:drawable="@drawable/list_item_bg_pressed" android:state_activated="true"/>
</selector>

@绘制/ list_item_bg_normal

<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<gradient
  android:startColor="@color/list_background"
  android:endColor="@color/list_background"
  android:angle="90" />
</shape>

@绘制/ list_item_bg_ pressed

<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
  <gradient
      android:startColor="@color/list_background_pressed"
      android:endColor="@color/list_background_pressed"
      android:angle="90" />
</shape>

在你的ListView选择

In your ListView Selection

listView.setOnItemClickListener(new OnItemClickListener() {

         @Override
         public void onItemClick(AdapterView<?> parent, View view, int position,long arg3) {
             view.setSelected(true);
             ...
         }
    }

不要忘了添加的 list_background_ pressed 和 list_background 以你的价值观/ color.xml或只是手动设置的颜色中的每个文件。

Don't forget to add list_background_pressed and list_background to your values/color.xml or just set the color manually in each file.

和我相信，当您使用 setSelection（INT POS），将自动USET你设置为selectected，布局

And I Believe that when you use setSelection(int pos) that will automatically uset the layout you've set as selectected.

希望它帮助。

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