如何实现Material Design 2.0按钮形状？

Question

我想实现看起来像Material Components示例中的按钮形状

我已经尝试做的是为这个按钮设置自定义样式

    <style name="ButtonAddLeft" parent="Widget.MaterialComponents.Button.Icon">
        <item name="backgroundTint">@color/secondary</item>
        <item name="android:textColor">@color/primary</item>
        <item name="shapeAppearance">@style/ButtonAddLeftShape</item>
    </style>

    <style name="ButtonAddLeftShape">
        <item name="cornerFamilyTopLeft">cut</item>
        <item name="cornerFamilyBottomLeft">cut</item>
        <item name="cornerSize">12dp</item>
    </style>

但是这看起来不像示例中的那个，无论我如何设置cornerSize。

Answer 1

您需要将角切割样式设置为主题。

    <style name="RightCutButton" parent="ThemeOverlay.MaterialComponents.Light">
        <item name="shapeAppearanceSmallComponent">@style/CornerCut</item>
    </style>

    <style name="CornerCut" parent="ShapeAppearance.MaterialComponents.SmallComponent">
        <item name="cornerFamilyTopRight">cut</item>
        <item name="cornerFamilyBottomRight">cut</item>
        <item name="cornerSizeTopRight">18dp</item>
        <item name="cornerSizeBottomRight">18dp</item>
    </style>

    <style name="AppTheme" parent="Theme.MaterialComponents.Light.DarkActionBar">
        <!-- Customize your theme here. -->
        <item name="shapeAppearanceSmallComponent">@style/CornerCut</item>
    </style>