Utils.java 文件源码

/**
 * Sets the background color of the drawable
 **/
public static void setDrawableColor(Context context, Drawable drawable, @AttrRes int colorAttrRes) {
    int colorRes = getResourceId(context, colorAttrRes);
    int color = ContextCompat.getColor(context, colorRes);
    if (drawable instanceof ShapeDrawable) {
        ((ShapeDrawable) drawable).getPaint().setColor(color);
    } else if (drawable instanceof GradientDrawable) {
        ((GradientDrawable) drawable).setColor(color);
    } else if (drawable instanceof ColorDrawable) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
            ((ColorDrawable) drawable).setColor(color);
        }
    } else if (drawable instanceof RotateDrawable) {
        setDrawableColor(context, ((RotateDrawable) drawable).getDrawable(), colorAttrRes);
    }
}