Cordova地理位置错误函数调用两次

Question

我使用地理定位插件来了解我的ionic2项目中的位置。如果允许位置没有问题。但错误函数调用了两次。这是我的代码

＆＃13;

＆＃13;

getLocation(){
		
		 Geolocation.getCurrentPosition().then((resp) => {
			console.log(resp.coords.latitude);
			console.log(resp.coords.longitude);
			this.options.distance=true;
		}).catch((error) => {
		
			
			console.log('Error getting location', error);

			  let alert = this.alertCtrl.create({
				title: 'Enable Location?',
				message: 'Allow Your Location',
				buttons: [
				  {
					text: 'Cancel',
					role: 'cancel',
					handler: () => {
					  console.log('Cancel clicked');
					}
				  },
				  {
					text: 'Go to Settings',
					handler: () => {
						Diagnostic.isLocationAuthorized().then(autherized=>{
							if(!autherized){
							Diagnostic.switchToLocationSettings();
							}
							
						}).catch((error)=>{
							console.log(error);
						});
						
					}
				  }
				]
			  });
			  alert.present();
         });
		
	};

＆＃13;

＆＃13;

＆＃13;

提前致谢....