Android Question SMM .Webp In CLV

[Samara]

I use simple media manager in customlistview with ".webp" format everything good in loading but when scroll clv get lag so much with 100 image...

#Region Shared Files
#CustomBuildAction: folders ready, %WINDIR%\System32\Robocopy.exe,"..\..\Shared Files" "..\Files"
'Ctrl + click to sync files: ide://run?file=%WINDIR%\System32\Robocopy.exe&args=..\..\Shared+Files&args=..\Files&FilesSync=True
#End Region

'Ctrl + click to export as zip: ide://run?File=%B4X%\Zipper.jar&Args=Project.zip

Sub Class_Globals
    Private Root As B4XView
    Private xui As XUI
    Private CustomListView1 As CustomListView
    Private PCVL_Main As PreoptimizedCLV
   
    Private Panel2 As Panel
    Private Panel1 As Panel
    Dim SMM As SimpleMediaManager
    Dim Perfix As String = "hide"
    Dim NumberMax As Int
End Sub

Public Sub Initialize
'    B4XPages.GetManager.LogEvents = True
    SMM.Initialize
End Sub

'This event will be called once, before the page becomes visible.
Private Sub B4XPage_Created (Root1 As B4XView)
    Root = Root1
    Root.LoadLayout("MainPage")
   
    NumberMax = SQL_Main.ExecQuerySingleResult("SELECT count(*) As MaxNumber FROM source")
   
    PCVL_Main.Initialize(Me, "PCVL_Main", CustomListView1)
    PCVL_Main.ShowScrollBar = False
    For i = 0 To NumberMax - 1
        PCVL_Main.AddItem(100dip, xui.Color_White, i)
    Next
    PCVL_Main.Commit
End Sub

'You can see the list of page related events in the B4XPagesManager object. The event name is B4XPage.

Private Sub CustomListView1_VisibleRangeChanged (FirstIndex As Int, LastIndex As Int)
    For Each i As Int In PCVL_Main.VisibleRangeChanged(FirstIndex, LastIndex)
        Dim item As CLVItem = CustomListView1.GetRawListItem(i)
        Dim pnl As B4XView = xui.CreatePanel("")
        item.Panel.AddView(pnl, 0, 0, item.Panel.Width, item.Panel.Height)
        pnl.LoadLayout("Cell") 'Create the item layout
        Dim Cursor As Cursor
        Cursor = Starter.SQL_Main.ExecQuery("SELECT * FROM source")
        Cursor.Position = i
        SMM.SetMedia(Panel2,Perfix&Cursor.GetString("url")&".webp")
    Next
    SMM.TrimMediaCache
End Sub

 

[Erel]

It has nothing to do with SMM or webp.
You need to remove images that are no longer visible.

Check SMM_Example2: https://www.b4x.com/android/forum/t...rk-for-images-videos-and-more.134716/#content

 

[Samara]

It has nothing to do with SMM or webp.
You need to remove images that are no longer visible.

Check SMM_Example2: https://www.b4x.com/android/forum/t...rk-for-images-videos-and-more.134716/#content

I use MediaManager.TrimMediaCache but no!
Exm project:

 

[Erel]

It has nothing to do with TrimMediaCache.

1. Don't use the starter service. It is not needed with B4XPages.
2. Don't use Cursor. Use ResultSet.
3. Don't forget to close it.
4. Don't read the complete list each time the CLV is updated. Read it once and store the result in a list.

 

[Samara]

It has nothing to do with TrimMediaCache.

1. Don't use the starter service. It is not needed with B4XPages.
2. Don't use Cursor. Use ResultSet.
3. Don't forget to close it.
4. Don't read the complete list each time the CLV is updated. Read it once and store the result in a list.

I fixed all..
png format working greatly... but still when use .webp problem not fixed...

 

[Erel]

WebP is natively supported on Android. I don't think that the format is the problem.
Maybe you are loading very large images.

 

[TILogistic]

?
You can continue adding more features.