QMUIDrawableHelper.java 文件源码

/**
 * 创建一张渐变图片，支持圆角
 *
 * @param startColor 渐变开始色
 * @param endColor   渐变结束色
 * @param radius     圆角大小
 * @param centerX    渐变中心点 X 轴坐标
 * @param centerY    渐变中心点 Y 轴坐标
 * @return
 */
@TargetApi(16)
public static GradientDrawable createCircleGradientDrawable(@ColorInt int startColor,
                                                            @ColorInt int endColor, int radius,
                                                            @FloatRange(from = 0f, to = 1f) float centerX,
                                                            @FloatRange(from = 0f, to = 1f) float centerY) {
    GradientDrawable gradientDrawable = new GradientDrawable();
    gradientDrawable.setColors(new int[]{
            startColor,
            endColor
    });
    gradientDrawable.setGradientType(GradientDrawable.RADIAL_GRADIENT);
    gradientDrawable.setGradientRadius(radius);
    gradientDrawable.setGradientCenter(centerX, centerY);
    return gradientDrawable;
}