SunlightAggregationTerminal/AppShell.xaml.cs

using SunlightAggregationTerminal.Class;
using SunlightAggregationTerminal.Models;
using SunlightAggregationTerminal.View;

namespace SunlightAggregationTerminal
{
    public partial class AppShell : Shell
    {
        public AppShell()
        {
            InitializeComponent();
            this.BindingContext = new AppModels();
        }


        private async void Shell_Loaded(object sender, EventArgs e)
        {
            //打开登录
            if (!App.GlobalData.LogNo)
            {
                var logpage = new View.LogPage();
                await Navigation.PushModalAsync(new NavigationPage(logpage));
            }
            else
            {              
                var loading = new View.Loading();
                await Navigation.PushModalAsync(loading);

                if (await AppModels.LogIn())
                {
                    await loading.Navigation.PopModalAsync();
                }
                else
                {//拒绝登陆时打开登录页面
                    await loading.Navigation.PopModalAsync();

                    var logpage = new View.LogPage();
                    await Navigation.PushModalAsync(new NavigationPage(logpage));
                }

            }
        }
    }
}