uniapp判断h5运行环境(微信、pc、移动端)

 

	isOpenMode() {
				//平台、设备和操作系统
				var system = {
					win: false,
					mac: false,
					xll: false,
					ipad: false
				};
				//检测平台
				var p = navigator.platform;
				system.win = p.indexOf("Win") == 0;
				system.mac = p.indexOf("Mac") == 0;
				system.x11 = (p == "X11") || (p.indexOf("Linux") == 0);
				system.ipad = (navigator.userAgent.match(/iPad/i) != null) ? true : false;
				//跳转语句,如果是手机访问就自动跳转到wap.baidu.com页面
				if (system.win || system.mac || system.xll || system.ipad) {
					var ua = navigator.userAgent.toLowerCase();
					if (ua.match(/MicroMessenger/i) == "micromessenger") {
						alert("在PC端微信上打开的");
						return 2;
					} else {
						alert("在PC端非微信上打开的");
						return 3;
					}
				} else {
					var ua = navigator.userAgent.toLowerCase();
					if (ua.match(/MicroMessenger/i) == "micromessenger") {
						alert("在手机端微信上打开的");
						return 1;
					} else {
						alert("在手机上非微信上打开的");
						return 4;
					}
				}
			}



	onShow() {
			
			this.isOpenMode()
			
		},