Button设置getComponent(Sprite).grayscale =false，运行时无效，如何设置？以及子级Label，有没有更便捷的方式？
没啥便捷的方法吧，最便捷封装一个自己的button组件
/**
* hex格式转RGB格式
* @param hex
*/
public static hexToRgb(hex: string) {
hex = hex.substring(1);
hex = hex.toLowerCase();
let b = new Array();
for (let x = 0; x < 3; x++) {
b[0] = hex.substring(x * 2, x * 2 + 2);
b[3] = '0123456789abcdef';
b[1] = b[0].substring(0, 1);
b[2] = b[0].substring(1, 2);
b[20 + x] = b[3].indexOf(b[1]) * 16 + b[3].indexOf(b[2]);
}
return new cc.Color(b[20], b[21], b[22]);
}
/**
* 将颜色置灰 返回一个新对象
* @param color
*/
public static colorToGrayScale(color: cc.Color) {
if (!color) return;
const gray = color.r * 0.3 + color.g * 0.59 + color.b * 0.11;
return new cc.Color(gray, gray, gray);
}
/**
* 设置按钮/节点交互状态
* 按钮设置不可交互，图片置灰
* @param node
* @param interactable 是否可交互
* @param recursion 递归子节点 默认false
*/
public static setInteractableState(node: cc.Node, interactable: boolean, recursion?: boolean) {
if (!node?.isValid) return;
if (recursion === undefined) {
recursion = false;
}
let button = node.getComponent(cc.Button);
button && (button.interactable = interactable);
let sprite = node.getComponent(cc.Sprite);
sprite && (sprite.grayscale = !interactable);
//文字相关置灰
const customKey = "custom_origiColor";
let labFun = (obj: cc.Label | cc.LabelOutline) => {
if (!obj?.isValid) return;
if (interactable) {
let origiColor: string = obj[customKey];
if (origiColor) {
if (!origiColor.includes("#")) {
origiColor = "#" + origiColor;
}
obj.color = this.hexToRgb(origiColor);
obj[customKey] = null;
}
} else {
if (!obj[customKey])
obj[customKey] = obj.color.toHEX();
obj.color = this.colorToGrayScale(obj.color);
}
}
let label = node.getComponent(cc.Label);
labFun(label);
let labOutline = node.getComponent(cc.LabelOutline);
labFun(labOutline);
if (recursion) {
for (let child of node.children) {
this.setInteractableState(child, interactable, recursion);
}
}
}调用 setInteractableState函数就行。
