Android Question problem with simple media manager

[HosseinEbi]

hi guys.
in b4xPages, images are loading by smm perfectly. problem is: loadings stops when I go to the next page before loading images successfully. background is white and all urls are ok. any advice

 

[TILogistic]

Upload an example or code that you are using.

 

[HosseinEbi]

Upload an example or code that you are using.

Private Sub clv_VisibleRangeChanged (FirstIndex As Int, LastIndex As Int)
    For Each i As Int In PCLV.VisibleRangeChanged(FirstIndex, LastIndex)
        Dim item As CLVItem = clv.GetRawListItem(i)
        Dim pnl As B4XView = xui.CreatePanel("")
        item.Panel.AddView(pnl, 0, 0, item.Panel.Width, item.Panel.Height)
        Dim data As MyImageData = item.Value
        
        pnl.LoadLayout("item")
    
        For x = 0 To 2
           MediaManager.SetMedia(pnl.GetView(x).GetView(0), $"https://picsum.photos/id/${data.IndexOfFirstImage + x}/200/300.jpg"$)
        Next
    Next
    MediaManager.TrimMediaCache

End Sub

 

[Erel]

Please reproduce it in a small project and upload the project.

 

[HosseinEbi]

Please reproduce it in a small project and upload the project.

 

[Erel]

SMM avoids creating new views if it can reuse existing ones. When an image becomes invisible its containing view becomes eligible for reuse.

You need to do three things:
1. Better to create a single SMM object and reuse it. Make the on in B4XMainPage a Public variable and in the other pages:

smm = B4XPages.MainPage.smm

2. Add this to B4XMainPage:

Private Sub B4XPage_Appear
    clv_VisibleRangeChanged(clv.FirstVisibleIndex, clv.LastVisibleIndex)
End Sub

3. In the second page, change the "download" sub to B4XPage_Appear. And don't call it from the main page. It will be called automatically.

 

[HosseinEbi]

SMM avoids creating new views if it can reuse existing ones. When an image becomes invisible its containing view becomes eligible for reuse.

You need to do three things:
1. Better to create a single SMM object and reuse it. Make the on in B4XMainPage a Public variable and in the other pages:

smm = B4XPages.MainPage.smm

2. Add this to B4XMainPage:

Private Sub B4XPage_Appear
    clv_VisibleRangeChanged(clv.FirstVisibleIndex, clv.LastVisibleIndex)
End Sub

3. In the second page, change the "download" sub to B4XPage_Appear. And don't call it from the main page. It will be called automatically.

thank you, dear Erel. It works great.