const { ccclass, property } = cc._decorator;
@ccclass
export default class ScrollViewPro extends cc.ScrollView {
// LIFE-CYCLE CALLBACKS:
start() {
}
onLoad() {
this.optDC();
this.node.on('scrolling', this.optDC, this);
}
optDC(){
let self = this;
let svLeftBottomPt:cc.Vec2 = this.node.parent.convertToWorldSpaceAR(new cc.Vec2(
self.node.x - self.node.anchorX * self.node.width, self.node.y - self.node.anchorY * self.node.height
));
var viewRect = cc.rect(svLeftBottomPt.x,svLeftBottomPt.y,this.node.width, this.node.height);
for (let i = 0; i < this.content.children.length; i++) {
const node = this.content.children[i];
if (viewRect.intersects(node.getBoundingBoxToWorld())) {
node.opacity = 255;
}
else {
node.opacity = 0;
}
}
}
update(dt) {
}
}
简单易懂！
