1 function getInitZoom(){
2 if(!this._initZoom){
3 var screenWidth = Math.min(screen.height, screen.width);
4 if(this.isAndroidMobileDevice() && !this.isNewChromeOnAndroid()){
5 screenWidth = screenWidth/window.devicePixelRatio;
6 }
7 this._initZoom = screenWidth /document.body.offsetWidth;
8 }
9 return this._initZoom;
10 }