在Android的圆形按钮 [英] Round button in Android

问题描述

我想创建一个圆形按钮有一个加号和减号到这一点，并在Android中使用的完全相同

I want to create a circular button having a plus and minus sign on to this and exactly used in Android Contacts application like shown in the image as below:

推荐答案

您可能会看到在Android中的来源$ C ​​$ C

You may see implementation of this button in android source code

这只是ImageButton的圆PNG作为背景。这里是他们的风格定义：

It's just ImageButton with circular png as background. Here is definition of their styles:

<style name="MinusButton">
    <item name="android:background">@drawable/btn_circle</item>
    <item name="android:src">@drawable/ic_btn_round_minus</item>
    <item name="android:contentDescription">@string/description_minus_button</item>
</style>

<style name="PlusButton">
    <item name="android:background">@drawable/btn_circle</item>
    <item name="android:src">@drawable/ic_btn_round_plus</item>
    <item name="android:contentDescription">@string/description_plus_button</item>
</style>

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