CardView Layer-List_android 使用xml方式layer-list实现按钮选中和默认状态-优快云博客

本文介绍如何使用XML创建Google Card风格的背景。通过定义状态选择器和层级列表，可以实现按钮在按下状态和默认状态的不同视觉效果。每个状态包括边角圆滑的矩形形状，并带有不同的颜色填充。

How to make google card style, just card_bg.xml below:

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">

    <item android:state_pressed="true"><layer-list>
            <item><shape android:dither="true" android:shape="rectangle">
                    <corners android:radius="2dp" />

                    <solid android:color="#ddd" />
                </shape></item>
            <item android:bottom="2dp"><shape android:dither="true" android:shape="rectangle">
                    <corners android:radius="2dp" />

                    <solid android:color="#eee" />

                    <padding android:bottom="8dp" android:left="8dp" android:right="8dp" android:top="8dp" />
                </shape></item>
        </layer-list></item>
    <item><layer-list>
            <item><shape android:dither="true" android:shape="rectangle">
                    <corners android:radius="2dp" />

                    <solid android:color="#ccc" />
                </shape></item>
            <item android:bottom="2dp"><shape android:dither="true" android:shape="rectangle">
                    <corners android:radius="2dp" />

                    <solid android:color="@android:color/white" />

                    <padding android:bottom="8dp" android:left="8dp" android:right="8dp" android:top="8dp" />
                </shape></item>
        </layer-list></item>

</selector>