添加依赖

在项目的 build.gradle 中添加：

allprojects {
    repositories {
        ...
        maven { url 'https://jitpack.io'
    }
  }
}

在 APP 模块下的 build.gradle 中添加依赖：

dependencies {
    implementation 'com.github.Liberuman:ShadowDrawable:0.1'
}

使用

通过一行代码即可实现阴影效果

/**
 * 为指定 View 设置带阴影的背景
 * @param view 目标 View
 * @param bgColor View 背景色
 * @param shapeRadius View 的圆角
 * @param shadowColor 阴影的颜色
 * @param shadowRadius 阴影的宽度
 * @param offsetX 阴影水平方向的偏移量
 * @param offsetY 阴影垂直方向的偏移量
 */
public static void setShadowDrawable(View view, int bgColor, int shapeRadius, int shadowColor, int shadowRadius, int offsetX, int offsetY);

// 实例：设置背景为颜色为#3D5AFE，圆角为 8dp, 阴影颜色为#66000000，宽度为 10dp 的背景
ShadowDrawable.setShadowDrawable(textView1, Color.parseColor("#3D5AFE"), dpToPx(8),
    Color.parseColor("#66000000"), dpToPx(10), 0, 0);

详细介绍可参考：Android 开发中阴影效果的实现

阴影效果

License

Copyright (c) 2018 Freeman

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.