是否可以更改android单选按钮组中的单选按钮图标

问题描述

我想让我的 android 应用程序的用户能够设置一些参数.单选按钮非常适合这种情况.但是，我不喜欢渲染单选按钮.

I am wanting to allow the user of my android application the ability to set some parameters. The radio button is ideal for this situation. However, I don't like the radio buttons are rendered.

是否可以更改单选按钮图标?例如，是否可以为每一行创建自定义布局，并在该布局中引用我自己的图标并更改字体等.

Is it possible to change the radio button icon? For example, is it possible to create a custom layout for each row and in that layout reference my own icon and change the font et al.

推荐答案

是的，您可能必须在 res/values/styles.xml 中为单选按钮定义自己的样式:

Yes that's possible you have to define your own style for radio buttons, at res/values/styles.xml:

<?xml version="1.0" encoding="utf-8"?>
<resources>
<style name="CustomTheme" parent="android:Theme">
   <item name="android:radioButtonStyle">@style/RadioButton</item>
</style>
<style name="RadioButton" parent="@android:style/Widget.CompoundButton.RadioButton">
   <item name="android:button">@drawable/radio</item>
</style>
</resources>

这里的'radio'应该是一个有状态的drawable，radio.xml:

'radio' here should be a stateful drawable, radio.xml:

    <?xml version="1.0" encoding="utf-8"?>
    <selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_checked="true" android:state_window_focused="false"
        android:drawable="@drawable/radio_hover" />
    <item android:state_checked="false" android:state_window_focused="false"
        android:drawable="@drawable/radio_normal" />
    <item android:state_checked="true" android:state_pressed="true"
        android:drawable="@drawable/radio_active" />
    <item android:state_checked="false" android:state_pressed="true"
        android:drawable="@drawable/radio_active" />
    <item android:state_checked="true" android:state_focused="true"
        android:drawable="@drawable/radio_hover" />
    <item android:state_checked="false" android:state_focused="true"
        android:drawable="@drawable/radio_normal_off" />
    <item android:state_checked="false" android:drawable="@drawable/radio_normal" />
    <item android:state_checked="true" android:drawable="@drawable/radio_hover" />
    </selector>

然后只需将自定义主题应用于整个应用或您选择的活动.

Then just apply the Custom theme either to whole app or to activities of your choice.

有关主题和样式的更多信息，请查看 http://brainflush.wordpress.com/2009/03/15/understanding-android-themes-and-styles/ 这是很好的指南.

For more info about themes and styles look at http://brainflush.wordpress.com/2009/03/15/understanding-android-themes-and-styles/ that is good guide.

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