Android中带按压效果的默认圆角按钮样式

创建button_round_selector.xml

<!-- 默认圆角按钮样式 -->
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">

    <!-- 禁用状态 -->
    <item android:state_enabled="false">
        <shape android:shape="rectangle">
            <corners android:radius="6dp" />
            <solid android:color="#BBBBBB" />
        </shape>
    </item>

    <!-- 按压状态 -->
    <item android:state_pressed="true">
        <shape android:shape="rectangle">
            <corners android:radius="6dp" />
            <solid android:color="#AA5A8DDF" />
        </shape>
    </item>

    <!-- 焦点状态 -->
    <item android:state_focused="true">
        <shape android:shape="rectangle">
            <corners android:radius="6dp" />
            <solid android:color="#AA5A8DDF" />
        </shape>
    </item>

    <!-- 默认状态 -->
    <item>
        <shape android:shape="rectangle">
            <corners android:radius="6dp" />
            <solid android:color="#5A8DDF" />
        </shape>
    </item>

</selector>

可以将组件的统一属性设置到themes.xml中去

<!-- 默认圆角按钮样式 -->
<style name="ButtonStyle" parent="Widget.AppCompat.Button.Borderless">
    <item name="android:paddingStart">20dp</item>
    <item name="android:paddingEnd">20dp</item>
    <item name="android:paddingTop">6dp</item>
    <item name="android:paddingBottom">6dp</item>
    <item name="android:layout_margin">40dp</item>
    <item name="android:textSize">16sp</item>
    <item name="android:textColor">#FFFFFFFF</item>
    <item name="android:gravity">center</item>
    <item name="android:background">@drawable/button_round_selector</item>
    <item name="android:foreground">@null</item>
</style>