Android动态设置shape形状背景，GradientDrawable动态设置背景色、圆角

1、静态设置

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<?xml version="1.0" encoding="utf-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android"     android:shape="rectangle">     <!--填充色-->     <!--<solid android:color="#FF409DFE"></solid>-->     <solid android:color="#00000000"></solid>       <!-- 矩形的边线 -->     <!--<stroke android:color="#7097E4"         android:width="1dp"></stroke>-->       <!--圆角大小-->     <corners         android:bottomRightRadius="18dp"         android:topRightRadius="18dp"         ></corners>     <!--android:radius="10dp"-->       <!--android:topLeftRadius="7dp"     android:bottomLeftRadius="7dp"--> </shape>

　　

2、代码动态设置：

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//设置图片四个角圆形半径：1、2两个参数表示左上角，3、4表示右上角，5、6表示右下角，7、8表示左下角                         val k = floatArrayOf(                             DensityUtil.dip2px(context,18F).toFloat(),//左上                             DensityUtil.dip2px(context,18F).toFloat(),//左上                             0F,                             0F,                             0F,                             0F,                             DensityUtil.dip2px(context,18F).toFloat(),//左下角                             DensityUtil.dip2px(context,18F).toFloat(),//左下角                         )                         val drawable = GradientDrawable()                         //drawable.cornerRadius = DensityUtil.dip2px(context,18F).toFloat()                         drawable.cornerRadii = k                         //drawable.setStroke(1, Color.parseColor("#cccccc"))                         drawable.setColor(Color.parseColor(data.color1))                         holder.binding.viewColor1.setBackgroundDrawable(drawable)

　　

 

 

参考于：

https://www.twblogs.net/a/5d010ee3bd9eee14644f96fc/?lang=zh-cn

https://blog.csdn.net/sinat_41890480/article/details/108773488