private void MusicPageNextSwitchedEvent(object sender, EventArgs e)
{
if (FMusicPage.NavigationService.CanGoForward)
{
FMusicPage.NavigationService.GoForward();
}
MusicPageSwitchedUtil.InvokeOfCanNext(FMusicPage.NavigationService.CanGoForward);
MusicPageSwitchedUtil.InvokeOfCanPrevious(true);
}
private void MusicPagePreviousSwitched(object sender, EventArgs e)
{
if (FMusicPage.NavigationService.CanGoBack)
{
FMusicPage.NavigationService.GoBack();
}
MusicPageSwitchedUtil.InvokeOfCanPrevious(FMusicPage.NavigationService.CanGoBack);
MusicPageSwitchedUtil.InvokeOfCanNext(true);
}
public static void FMusicPageNavigateTo(Page page, bool hasNavigateBar = true)
{
var frame = App.Current.MainWindow.FindName("FMusicPage") as Frame;
frame.Navigate(page);
MusicPageSwitchedUtil.InvokeOfCanPrevious(true);
MusicPageSwitchedUtil.InvokeOfCanNext(false);
if (!hasNavigateBar)
{
NonNavPageDisplayedUtil.Invoke();
}
}
private void MusicPageChanged(object sender, PageChangedEventArgs e)
{
//需要刷新界面并且当前指向为同一页，因为如果不是同一页，由于刚刚赋值，刷新后就会又变成了旧值
if (e.IsRefresh &&
FMusicPage.Source?.OriginalString != null &&
e.PageSource.OriginalString.Contains(FMusicPage.Source.OriginalString))
{
FMusicPage.NavigationService.Refresh();
}
else
{
FMusicPage.Source = e.PageSource;
}
MusicPageSwitchedUtil.InvokeOfCanPrevious(true);
MusicPageSwitchedUtil.InvokeOfCanNext(false);
}
private void BtnNextPage_Click(object sender, RoutedEventArgs e)
{
MusicPageSwitchedUtil.InvokeOfNext();
}
private void BtnPreviousPage_Click(object sender, RoutedEventArgs e)
{
MusicPageSwitchedUtil.InvokeOfPrevious();
}
