Android Question Scrollview load more on reaching end of panel

[Fusseldieb]

Hi community,
it is possible to "calculate", if the user is reaching the inner limit of the ScrollView, in order to load more entries?
If yes, have somebody a example code please?

Thanks in advance

 

[klaus]

You can test in the ScrollChanged event if the Position is equal to ScrollView1.Panel.Height - ScrollView1.Height or bit lower.

 

[Fusseldieb]

You can test in the ScrollChanged event if the Position is equal to ScrollView1.Panel.Height - ScrollView1.Height or bit lower.

Klaus, ahaaa, ei schwiizer

Returning on topic.... You have helped me very much. I have resolved it with:

Sub ScrollView1_ScrollChanged(Position As Int)
If Position > (ScrollView1.Panel.Height - ScrollView1.Height)-20dip Then
'Run "load more" event
End If
End Sub

 

[Erel]

You can use CustomListView with this modification: http://www.b4x.com/android/forum/th...ore-when-scroll-tot-bottom.35761/#post-210230

 

[Fusseldieb]

Thanks @Erel , but I have already resolved this

 

[Juzer Hussain]

Hi Erel,

Just wanted to confirm in this method sv is Reloaded every time fully with additional 20 items. If one is simply scrolling fast wont the scrolling feel jerky? Cant we add 20 items ABOVE instead of reloading old items again.
Pls suggest.
Juzer

You can use CustomListView with this modification: http://www.b4x.com/android/forum/th...ore-when-scroll-tot-bottom.35761/#post-210230

 

[Erel]

The items are added to the list. No item is being reloaded.

 

[Juzer Hussain]

The items are added to the list. No item is being reloaded.

Sorry Erel, went thru the code again it is only adding new panels.In my case i need to add panels above the previous panel.Is there any efficient way of doing this i ended up doing like this.
On Activity_Create
1. Add n panels one after other
2. Set a boolean value to false
In a transparent pnl touch event
1. Set the boolean to true (I added this panel for other purpose, so used it)
In ScrollChanged
1. Check for boolean if true
2. Check for value "position"
2. Add next lot of n items
3. Sort them on ID (clsCheckList)
4. Set boolean value to false
When i scroll up it loads items n at a time there is slight delay bearable. Is there any more efficient way you can suggest please.

Thanks
Juzer

 

[Erel]

You can add the items wherever you want. Use CLV.InsertAt to set the location.

 

[Juzer Hussain]

Yes I saw it earlier Erel but I found sorting much easier here, After adding one lot at end (20 panels) it sorts whole SV in one shot and as sendtoback and bringtofront properties are used it does it instantly.
Thank You
Juzer