Config.java 文件源码

public Shader getLinearGradient(GradientAngle gradientAngle, float width, float height) {
    float x1 = 0, x2 = 0, y1 = 0, y2 = 0;
    switch (gradientAngle) {
        case LEFT_TO_RIGHT:
            x2 = width;
            break;
        case RIGHT_TO_LEFT:
            x1 = width;
            break;
        case TOP_TO_BOTTOM:
            y2 = height;
            break;
        case BOTTOM_TO_TOP:
            y1 = height;
            break;
        case LEFT_TOP_TO_RIGHT_BOTTOM:
            x2 = width;
            y2 = height;
            break;
        case RIGHT_BOTTOM_TO_LEFT_TOP:
            x1 = width;
            y1 = height;
            break;
        case LEFT_BOTTOM_TO_RIGHT_TOP:
            x2 = width;
            y1 = height;
            break;
        case RIGHT_TOP_TO_LEFT_BOTTOM:
            x1 = width;
            y2 = height;
            break;
    }
    return new LinearGradient(x1, y1, x2, y2, startColor, endColor, Shader.TileMode.CLAMP);
}