How to access item View inside SfRotator?

[Radoslaw Kubas]

Hello,

Could you help me how to get access to the item View inside SfRotator. I'm trying to use MediaManager inside rotator, and it works fine on iOS, but I noticed some issues on Android (MediaManager has problem to find correct VideoView). Anyway, it seems it can be solved by attaching VideoView manually, but to do this, I need get access to the selected View. How to get it?

Thank you in advance for support.

Regards,

Radek

[Hemalatha Marikumar]

Hi Radoslaw Kubas, 

  

Greetings, 

  

We have validated your query, you can achieve this by using SelectionChanged event in SfRotator using code snippet below. In the following code snippet ImageCollection as a List to bind the Rotator items and you can get the current view index from SelectionChanged event. 

  

Code snippet[C#] 

  

private void SfRotator_SelectedIndexChanged(object sender, Syncfusion.SfRotator.XForms.SelectedIndexChangedEventArgs e) 

        { 

            var selectedItem = viewModel.ImageCollection[(int)e.Index]; 

        } 

  

  

UG link: https://help.syncfusion.com/xamarin/rotator/events?cs-save-lang=1&cs-lang=xaml#selection-changed 

  

We have prepared a simple, download it from below link. 

  

Sample: https://www.syncfusion.com/downloads/support/directtrac/general/ze/RotatorSample1257504733 

  

Please let us know, if you have any other concerns. 

 

Regards, 

Hemalatha M. 

[Radoslaw Kubas]

Hello,

Thank you for your answer, but unfortunately my problem is more complicated. I need access the View (not ViewModel). As I mentioned before I want to use SfRotator and MediaManager (https://github.com/Baseflow/XamarinMediaManager/) I have something like that (in real solution it is little more complicated but I tried to simplify it):

<SfRotator x:Name="Rotator"

     ItemsSource={Binding RotatorItems}

     SelectedIndexChanged="SfRotator_OnSelectedIndexChanged">

<SfRotator.ItemTemplate>

     <DataTemplate>

    

          <Grid>

               <VideoView Source={Binding VideoSource}/>

          </Grid > 

          

     </DateTemplate>

</SfRotator.ItemTemplate>

</SfRotator>

It works fine on iOS, but on Android MediaManager has problems to find correct view so I need to set in manually. It sosos to be something like that

 private void SfRotator_OnSelectedIndexChanged(object sender, SelectedIndexChangedEventArgs e)

{

     IVideoView playerView = GetPlayerView(Rotator, Rotator.SelectedIndex);

     CrossMediaManager.Current.MediaPlayer.VideoView = playerView;

}

private IVideoView GetPlayerView(SfRotator rotator, int index)

{

    throw new NotImplementedException();

}

My question is how to get access to the view collection inside Rotator, so I can find currently selected view and inside find reference to <VideoView>.

Best regards,

Radek

[Hemalatha Marikumar]

Hi Radoslaw Kubas, 

  

We have validated your query. We would like to let you know that SfRotator items can be populate in two different ways. 

  

·       Through SfRotatorItem

 

·       Through ItemTemplate. 

  

We can achieve your requirement using SfRotatorItem. SfRotatorItem can have a ItemContent property. Get the item of current when the selection is DataSource by using below code snippet: 

 

CodeSnippet[XAML]: 

 

<sfRotator:SfRotator 

            x:Name="rotator" 

            SelectedIndexChanged="SfRotator_SelectedIndexChanged"  > 

            <sfRotator:SfRotator.DataSource> 

                <sfRotator:SfRotatorItem > 

                    <sfRotator:SfRotatorItem.ItemContent> 

                        <local:RotatorTemplateView/> 

                    </sfRotator:SfRotatorItem.ItemContent> 

                </sfRotator:SfRotatorItem> 

  

                    < ----------------------------------- > 

     </sfRotator:SfRotator.DataSource> 

  </sfRotator:SfRotator> 

 

CodeSnippet[C#]: 

 

private void SfRotator_SelectedIndexChanged(object sender, Syncfusion.SfRotator.XForms.SelectedIndexChangedEventArgs e) 

        { 

            var selectedView = rotator.DataSource[(int)e.Index].ItemContent; 

        } 

 

 

Get the sample from below link: https://www.syncfusion.com/downloads/support/directtrac/general/ze/RotatorSample-1894087064 

  

Please let us know, if you have any other concerns. 

 

Regards, 

Hemalatha M. 

[Radoslaw Kubas]

Hello,

Thank you for this hint, I will check if it works for me, but also I have an additional question.

I noticed that property SfRotator.DataSource is obsolete. Is it going to be removed in future releases?

Best regards,

Radek

[Hemalatha Marikumar]

Hi Radoslaw Kubas, 

  

Thanks for the update. 

 

Query: SfRotator.DataSource is obsolete. Is it going to be removed in future releases? 

 

Yes. It will be removed by any of our upcoming release. Since we have modified the sample by using ItemsSource property in SfRotator as per in below code snippet. 

 

CodeSnippet [C#]: 

 

            InitializeComponent(); 

            collectionOfItems = new ObservableCollection<SfRotatorItem>(); 

            collectionOfItems.Add(new SfRotatorItem() { ItemContent = new RotatorTemplateView() }); 

            …… 

            collectionOfItems.Add(new SfRotatorItem() { ItemContent = new RotatorTemplateView() }); 

            this.rotator.ItemsSource = collectionOfItems; 

 

 

Please find the code for getting the current view from SelectionChanged event as per in below 

 

CodeSnippet[C#]: 

private void SfRotator_SelectedIndexChanged(object sender, Syncfusion.SfRotator.XForms.SelectedIndexChangedEventArgs e) 

        { 

            var item = collectionOfItems[(int)e.Index]; 

            var selectedView = item.ItemContent; 

        } 

 

  

Sample: https://www.syncfusion.com/downloads/support/directtrac/general/ze/RotatorSample_CurrentView-990627760 

  

Please let us know if you have any other concern. 

  

Regards, 

Hemalatha M. 

[Radoslaw Kubas]

Thank you very much! Works perfect :)

[Hemalatha Marikumar]

Hi Radoslaw, 

 

Thanks for your update. 

 

We glad to hear that given solution works. 

 

Please let us know if you need any further assistance. 

 

Regards, 

Hemalatha M.