在启动时设置当前轮播页面。 Xamarin.Forms

Question

我的CarouselPage有问题。初始化时，我指定CarouselPage.ItemSource = .... 一开始我需要显示第二页，而不是第一页。

我的代码：

Weeks = new ObservableCollection<Week>
                {
                    new Week {Days = GetDays(currentMonday.AddDays(-7)), ItemTappedCommand = JobTappedCommand},
                    new Week {Days = GetDays(currentMonday), ItemTappedCommand = JobTappedCommand},
                    new Week {Days = GetDays(currentMonday.AddDays(7)), ItemTappedCommand = JobTappedCommand},
                };

                CurrentDate = Weeks[1].DateOfFirstDayOfWeek;

我该怎么做？

Answer 1

我认为（但我没有测试）你可以使用像

这样的东西

this.CurrentPage = this.Children[1];

Answer 2

我做到了：

private bool _isInitialized;

private void CarouselAllJobsWeekPage_OnPagesChanged(object sender, NotifyCollectionChangedEventArgs e)
        {
            if (!_isInitialized
                && Children.Count > 2)
            {
                CurrentPage = this.Children[1];
                _isInitialized = true;
            }
        }