我现在在kotlin上重新制作旧的Java代码,但我有一个问题,我需要此代码的kotlin类似物:

Drawable[] layers = new Drawable[]{
    colorDrawable,
    border
};

LayerDrawable drawable = new LayerDrawable(layers);

在 Kotlin ,我现在有:
val border = GradientDrawable()
border.shape = GradientDrawable.RECTANGLE
border.setStroke(CommonsUtils.dpToPx(holder.itemView, 1), Color.parseColor("#DEDEDE"))
border.cornerRadius = CommonsUtils.dpToPx(holder.itemView, 2).toFloat()

val colorDrawable = try {
    Color.parseColor(color.hex)
} catch (e: Exception) {
    e.printStackTrace()
    ColorDrawable(Color.parseColor("#FFFFFF"))
}

val layers = arrayOf(colorDrawable, border)
val drawable = LayerDrawable(layers as Array<out Drawable>)

但是arrayOf返回“Any”的数组而不是“out Drawable”的数组,并且我将类Object []转换为Drawable []。

最佳答案

更改为此:

val colorDrawable = try {
    ColorDrawable(Color.parseColor(color.hex))
} catch (e: Exception) {
    e.printStackTrace()
    ColorDrawable(Color.parseColor("#FFFFFF"))
}
Color.parseColor(color.hex)返回int而不是Drawable

10-08 17:53