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Creator 版本： 2.4.11
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目标平台：微信小游戏
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重现方式：
1 打包后用iPhoneX扫开发版二维码预览
2 点“加载bundle”按钮，比如现在初始内存占用是 404M
3 点“png2048s Texs”按钮，加载10张2048x2048的纹理，内存增加了161M达到了565M（平均一张纹理占大约16M）
3 点“png2048s SFs”按钮，加载对应的SpriteFrame，内存增加了53M达到了618M（这是为啥？）
4 点“png2047s Texs”按钮，加载10张2047x2047的纹理，内存增加了161M达到了779M
5 点“png2047s SFs”按钮，加载对应的SpriteFrame，内存并没有增加
TestMemory.zip (676.0 KB)
主要代码：
`const w = 40;
const d = 24;
@cc._decorator.ccclass
export default class Main extends cc.Component {
private bundle: cc.AssetManager.Bundle;
private spNamess: { [key: string]: Array<string> };
private container: cc.Node;
protected start(): void {
console.log(cc.macro.CLEANUP_IMAGE_CACHE);
cc.macro.CLEANUP_IMAGE_CACHE = true;
this.container = this.node.getChildByName("container");
const _btns = this.node.getChildByName("btns");
_btns.getChildByName("加载bundle").on(cc.Node.EventType.TOUCH_START, () => {
wx.loadSubpackage({
name: "res", success: (res: { errMsg: string }) => {//{"errMsg":"loadSubpackage:ok"}
console.log("loadSubpackage(" + "res" + ") success " + JSON.stringify(res));
cc.assetManager.loadBundle("res", (err, bundle) => {
this.bundle = bundle;
this.spNamess = {};
for (const path in this.bundle._config.paths._map) {
const matchArr = path.match(/^Texture\/([^\/]+)\/([^\/]+)$/);
const spsName = matchArr[1];
let spNames: Array<string> = this.spNamess[spsName];
spNames || (this.spNamess[spsName] = spNames = []);
spNames.push(matchArr[2]);
}
console.log(this.spNamess);
});
}, fail: res => {
console.error("loadSubpackage(" + "res" + ") fail" + JSON.stringify(res));
}
});
});
_btns.getChildByName("triggerGC").on(cc.Node.EventType.TOUCH_START, () => {
wx?.triggerGC?.();
});
const _jpg2048s = _btns.getChildByName("jpg2048s");
_jpg2048s.getChildByName("Texs").on(cc.Node.EventType.TOUCH_START, () => {
this.loadTexs("2048x2048jpg");
});
_jpg2048s.getChildByName("SFs").on(cc.Node.EventType.TOUCH_START, () => {
this.loadSFs("2048x2048jpg");
});
const _png2048s = _btns.getChildByName("png2048s");
_png2048s.getChildByName("Texs").on(cc.Node.EventType.TOUCH_START, () => {
this.loadTexs("2048x2048png");
});
_png2048s.getChildByName("SFs").on(cc.Node.EventType.TOUCH_START, () => {
this.loadSFs("2048x2048png");
});
const _png2047s = _btns.getChildByName("png2047s");
_png2047s.getChildByName("Texs").on(cc.Node.EventType.TOUCH_START, () => {
this.loadTexs("2047x2047png");
});
_png2047s.getChildByName("SFs").on(cc.Node.EventType.TOUCH_START, () => {
this.loadSFs("2047x2047png");
});
const _jpg1422s = _btns.getChildByName("jpg1422s");
_jpg1422s.getChildByName("Texs").on(cc.Node.EventType.TOUCH_START, () => {
this.loadTexs("1422x640jpg");
});
_jpg1422s.getChildByName("SFs").on(cc.Node.EventType.TOUCH_START, () => {
this.loadSFs("1422x640jpg");
});
const _png1422s = _btns.getChildByName("png1422s");
_png1422s.getChildByName("Texs").on(cc.Node.EventType.TOUCH_START, () => {
this.loadTexs("1422x640png");
});
_png1422s.getChildByName("SFs").on(cc.Node.EventType.TOUCH_START, () => {
this.loadSFs("1422x640png");
});
}
private loadTexs(spsName: string): void {
this.bundle.loadDir("Texture/" + spsName + "/", cc.Texture2D, (err, texs) => {
console.log("loadTexs", spsName, texs.length);
});
}
private loadSFs(spsName: string): void {
this.bundle.loadDir("Texture/" + spsName + "/", cc.SpriteFrame, (err, sfs) => {
console.log("loadSFs", spsName, sfs.length);
const i = this.container.children.length;
let x: number = i % w;
let y: number = (i - x) / w;
x--;
for (const sf of sfs) {
if (++x >= w) {
x = 0;
y++;
}
const node = new cc.Node();
const sp = node.addComponent(cc.Sprite);
sp.spriteFrame = sf;
this.container.addChild(node);
node.width = node.height = 22;
node.x = x * d;
node.y = -y * d;
}
});
}
}
`