protected override void OnNavigatedFrom(NavigationEventArgs e)
{
base.OnNavigatedFrom(e);
CallbackManager.currentPage = null;
currentPosition.Stop();
//当用户按win键 或者长按返回键时 不清空 datacontext 否则从墓碑模式返回时会丢失当前数据
if (e.Content != null)
{
//如果不是返回下载页
if (!(e.Content is DownVideo))
{
leaveSilderValue = pbVideo.Value;
App.PlayerModel.ClearData();
this.DataContext = null;
}
}
else
{
needSetSliderValue = true;
GC.Collect();
GC.WaitForPendingFinalizers();
}
myMediaElement.Tap -= myMediaElement_Tap;
App.HideLoading();
WpStorage.SetIsoSetting(needSetSliderValueIso, needSetSliderValue);
WpStorage.SetIsoSetting(leaveSilderValueIso, leaveSilderValue);
}
//视频状态改变时的处理事件
void myMediaElement_CurrentStateChanged(object sender, RoutedEventArgs e)
{
if (myMediaElement.CurrentState == MediaElementState.Playing)
{//播放视频时各菜单的状态
if (WpStorage.GetIsoSetting(needSetSliderValueIso) != null)
{
needSetSliderValue = (bool)WpStorage.GetIsoSetting(needSetSliderValueIso);
if (needSetSliderValue)
{
needSetSliderValue = false;
WpStorage.SetIsoSetting(needSetSliderValueIso, needSetSliderValue);
if (WpStorage.GetIsoSetting(leaveSilderValueIso) != null)
{
leaveSilderValue = (double)WpStorage.GetIsoSetting(leaveSilderValueIso);
pbVideo.Tag = "isFoucesed";
pbVideo.Value = leaveSilderValue;
}
}
}
//更换清晰度
if (App.PlayerModel.IsChangeDefinition)
{
pbVideo.Tag = "isFoucesed";
pbVideo.Value = leaveSilderValue;
//myMediaElement.Position = new TimeSpan(0, 0, 0, (int)leaveSilderValue);
}
currentPosition.Start();
App.HideLoading();
App.PlayerModel.LoadVisibility = Visibility.Collapsed;
PlayImg.Source = new BitmapImage(new Uri(pauseImg, UriKind.RelativeOrAbsolute));
}
else if (myMediaElement.CurrentState == MediaElementState.Paused)
{ //暂停视频时各菜单的状态
currentPosition.Stop();
PlayImg.Source = new BitmapImage(new Uri(playImg, UriKind.RelativeOrAbsolute));
}
else
{//停止视频时各菜单的状态
currentPosition.Stop();
PlayImg.Source = new BitmapImage(new Uri(playImg, UriKind.RelativeOrAbsolute));
//NextPlayerGrid_Tap(null,null);
}
}