我遇到了与角& createjs-module有关的问题。PreloadJS不适用于Angular(createjs-module)
的createjs模块的工作,因为你可以在代码中看到的,形状的方法和补间工作(我可以想像它在浏览器成功):
https://www.npmjs.com/package/createjs-module
但是当我尝试使用从createjs官方文档,开始预加载和使用图像,没有任何反应:
http://createjs.com/docs/preloadjs/classes/LoadQueue.html
队列不加载。我在可以工作的“ngOnInit”的末尾放置一个控制台日志,但没有事件从“队列”对象中分派。 我在代码中看不到任何错误,并且在控制台上看不到任何错误/警告。
代码:
import { Component, OnInit, ViewChild } from '@angular/core';
import * as createjs from 'createjs-module';
@Component({
selector: 'app-mycomp',
templateUrl: './mycomp.component.html',
styleUrls: ['./mycomp.component.css']
})
export class MyClass implements OnInit {
public stage;
public queue;
public queueManifest = [
{id:"header", src:"header.png"},
{id:"body", src:"body.png"},
{id:"footer", src:"footer.png"}
];
constructor() { }
ngOnInit() {
///THIS CODE WORKS!
this.stage = new createjs.Stage("myCanvas");
createjs.Ticker.setFPS(60);
createjs.Ticker.addEventListener("tick", this.stage);
var circle = new createjs.Shape();
circle.graphics.beginFill("DeepSkyBlue").drawCircle(0, 0, 50);
circle.x = 10;
circle.y = 10;
this.stage.addChild(circle);
createjs.Tween.get(circle, { loop: true })
.to({ x: 400 }, 1000, createjs.Ease.getPowInOut(4))
.to({ alpha: 0, y: 175 }, 500, createjs.Ease.getPowInOut(2))
.to({ alpha: 0, y: 225 }, 100)
.to({ alpha: 1, y: 200 }, 500, createjs.Ease.getPowInOut(2))
.to({ x: 100 }, 800, createjs.Ease.getPowInOut(2));
this.stage.update();
///THIS CODE DOES NOT WORK!
this.queue = new createjs.LoadQueue();
this.queue.on("progress", this.queueProgress, this);
this.queue.on("complete", this.queueComplete, this);
this.queue.on("error", this.queueError, this);
this.queue.loadManifest(this.queueManifest);
///THIS LINE IS ON CONSOLE!
console.log("queue START");
}
///NONE OF THIS IS DISPATCHING
public queueProgress()
{
console.log("queue progress");
}
public queueError()
{
console.log("queue error");
}
public queueComplete()
{
console.log("queue finished");
}
}