DrawableHelper.java 文件源码

public static Drawable getCornerDrawable(float topLeft,
                                         float topRight,
                                         float bottomLeft,
                                         float bottomRight,
                                          @ColorInt int color) {

    float[] outerR = new float[8];
    outerR[0] = topLeft;
    outerR[1] = topLeft;
    outerR[2] = topRight;
    outerR[3] = topRight;
    outerR[4] = bottomRight;
    outerR[5] = bottomRight;
    outerR[6] = bottomLeft;
    outerR[7] = bottomLeft;

    ShapeDrawable drawable = new ShapeDrawable();
    drawable.setShape(new RoundRectShape(outerR, null, null));
    drawable.getPaint().setColor(color);

    return drawable;
}