文章来源：jquery教程 - http://www.jq-school.com/Show.aspx?id=303
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31、原生]ja
function isMobile(){
if (typeof this._isMobile === 'boolean'){
return this._isMobile;
}
var screenWidth = this.getScreenWidth();
var fixViewPortsExperiment = rendererModel.runningExperiments.FixViewport || rendererModel.runningExperiments.fixviewport;
var fixViewPortsExperimentRunning = fixViewPortsExperiment && (fixViewPortsExperiment.toLowerCase() === "new");
if(!fixViewPortsExperiment){
if(!this.isAppleMobileDevice()){
screenWidth = screenWidth/window.devicePixelRatio;
}
}
var isMobileScreenSize = screenWidth < 600;
var isMobileUserAgent = false;
this._isMobile = isMobileScreenSize && this.isTouchScreen();
return this._isMobile;
}32、原生jafunction isMobileUserAgent(){
return (/iphone|ipod|android.*mobile|windows.*phone|blackberry.*mobile/i.test(window.navigator.userAgent.toLowerCase()));
}33、原生jafunction isAppleMobileDevice(){
return (/iphone|ipod|ipad|Macintosh/i.test(navigator.userAgent.toLowerCase()));
}34、原生jafunction isAndroidMobileDevice(){
return (/android/i.test(navigator.userAgent.toLowerCase()));
}35、原生jafunction isTouchScreen(){
return (('ontouchstart' in window) || window.DocumentTouch && document instanceof DocumentTouch);
}36、原生jafunction isNewChromeOnAndroid(){
if(this.isAndroidMobileDevice()){
var userAgent = navigator.userAgent.toLowerCase();
if((/chrome/i.test(userAgent))){
var parts = userAgent.split('chrome/');
var fullVersionString = parts[1].split(" ")[0];
var versionString = fullVersionString.split('.')[0];
var version = parseInt(versionString);
if(version >= 27){
return true;
}
}
}
return false;
}37、原生jafunction isViewportOpen() {
return !!document.getElementById('wixMobileViewport');
}38、原生jafunction getInitZoom(){
if(!this._initZoom){
var screenWidth = Math.min(screen.height, screen.width);
if(this.isAndroidMobileDevice() && !this.isNewChromeOnAndroid()){
screenWidth = screenWidth/window.devicePixelRatio;
}
this._initZoom = screenWidth /document.body.offsetWidth;
}
return this._initZoom;
}39、原生jafunction getZoom(){
var screenWidth = (Math.abs(window.orientation) === 90) ? Math.max(screen.height, screen.width) : Math.min(screen.height, screen.width);
if(this.isAndroidMobileDevice() && !this.isNewChromeOnAndroid()){
screenWidth = screenWidth/window.devicePixelRatio;
}
var FixViewPortsExperiment = rendererModel.runningExperiments.FixViewport || rendererModel.runningExperiments.fixviewport;
var FixViewPortsExperimentRunning = FixViewPortsExperiment && (FixViewPortsExperiment === "New" || FixViewPortsExperiment === "new");
if(FixViewPortsExperimentRunning){
return screenWidth / window.innerWidth;
}else{
return screenWidth / document.body.offsetWidth;
}
}40、原生jafunction getScreenWidth(){
var smallerSide = Math.min(screen.width, screen.height);
var fixViewPortsExperiment = rendererModel.runningExperiments.FixViewport || rendererModel.runningExperiments.fixviewport;
var fixViewPortsExperimentRunning = fixViewPortsExperiment && (fixViewPortsExperiment.toLowerCase() === "new");
if(fixViewPortsExperiment){
if(this.isAndroidMobileDevice() && !this.isNewChromeOnAndroid()){
smallerSide = smallerSide/window.devicePixelRatio;
}
}
return smallerSide;
} 最佳答案
