在 Android 中制作带有图像的 RadioGroup 单选按钮......如何？
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Making RadioGroup radio buttons with images in Android... How?
提问by Igal
Is it possible to make Radio Buttons in Android, where there are image representation to a button instead of a regular buttons? I want it to look something like that:
是否可以在 Android 中制作单选按钮，其中按钮有图像表示而不是常规按钮？我希望它看起来像这样：
The cyan in the middle represents the selected button.
中间的青色代表选中的按钮。
How can I do it?
我该怎么做？
回答by Balázs édes
The RadioButtonclass has a buttonDrawablemember, derived from CompoundButton.
的RadioButton类有一个buttonDrawable构件，衍生自CompoundButton。
There are multiple ways you can change this drawable.
有多种方法可以更改此可绘制对象。
From java:
从爪哇：
myRadioButton.setButtonDrawable(resourceId or Drawable);
From xml:
来自 xml：
<RadioButton
android:button="@drawable/yourdrawable"
...
/>
If you just want the checked/unchecked state look differently, then
如果您只是希望选中/未选中状态看起来不同，那么
- Add a new selector xml by rightclicking your res folder -> New -> Android xml -> select Drawable in the upper dropdown -> choose selector (in eclipse)
- To setup this selector, please take a look at this link
- From now on you can set your freshly created selector to any of your checkboxes/radiobuttons by using its id.
- 通过右键单击 res 文件夹添加新的选择器 xml -> 新建 -> Android xml -> 在上方下拉列表中选择 Drawable -> 选择选择器（在 eclipse 中）
- 要设置此选择器，请查看此链接
- 从现在开始，您可以使用其 id 将新创建的选择器设置为任何复选框/单选按钮。
