xsdmx-CocosCreator/assets/Script/adapter/FullScene.ts

const {ccclass, property} = cc._decorator;
/**
 * 尺寸布满全屏
 */
@ccclass
export default class FullScene extends cc.Component {

    onLoad () {
        let d1 = cc.winSize.height/cc.winSize.width;
        let d2 = this.node.height/this.node.width;

        if(d1 > d2){
            this.node.scale = cc.winSize.height/this.node.height;
        }else{
            this.node.scale = cc.winSize.width/this.node.width;
        }
    }

 
}