如何创建一个单选按钮切换特定状态抽拉XML [英] How to create a state-specific drawable xml for a toggle RadioButton

问题描述

在创建按钮可绘制，我通常遵循以下格式来实现背景的onclick事件的变化：

When creating button drawables, I typically follow the following format to implement an "onClick" change of background:

<selector xmlns:android="http://schemas.android.com/apk/res/android"> 
    <item android:state_focused="true" android:state_pressed="true" 
        android:drawable="@drawable/RESOURCE_FOR_CLICKED" /> 
    <item android:state_focused="false" android:state_pressed="true" 
        android:drawable="@drawable/RESOURCE_FOR_CLICKED" /> 
    <item android:drawable="@drawable/RESOURCE_NORMAL" /> 
</selector>

这对我来说工作得很好，当我创建传统的按钮，因为我希望他们能够恢复到原来的状态，一旦的onClick 完成，并且我没有实施任何code。

This works fine for me when I am creating traditional buttons as I want them to return to their original state once onClick is finished, and I don't have to implement any code.

然而，这不适用于单选工作，因为我其实是想一旦他们选择了他们的背景绘制是在非$ P $不同pssed状态。

However, this does not work for RadioButtons because I actually want their background drawable to be different in the non-pressed state once they have selected.

对于涉及单选按钮的状态，我应该知道的实施这样的事情有XML属性？如果不是这样，我必须管理code背景的变化？

Are there XML attributes for states involving radio buttons that I should be aware of to implement this sort of thing? If not, do I have to manage the changing of backgrounds in code?

推荐答案

的android：state_checked 将让您指定当选择无线电项目的绘制

android:state_checked will let you specify a drawable for when a radio item is selected.

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