When data source changes, reloadData not functioning? about gmgridview

[gmoledina]

It is suppose to work. In fact, just changing the dataSource will automatically call the reloadData method.
You can show me some code and I can help you figure it out.

[gmoledina]

I'll consider this issue fixed as I didn't get any reply. Feel free to re-open an issue if the problem persists.

[Maverick1st]

The Issue still exists.
I have exactly the same problem.
I am displaying several items (500) in the view. When i use a search to thin out the items to be displayed, my datasources content array is correctly updated, when i call reloadData, but in loadRequiredItems the for loop is not entered and therefore cellForItemAtIndex is not called.

I hope you can find the bug with this info. I haven't found it yet. :(

EDIT:
It seems, that rangeOfPositions is not calculated correctly

EDIT:
It seems to me that the GmGridView variable is somehow "forgetting" its delgates and datasource.
If i set the delegates right before calling reloadData at least the rangeOfPositions is calculated. But the cells are not reduced to the number in the data array. :(

[gmoledina]

I will create a demo3 in the demo app:

• the controller will have 2 different arrays for the data
• a UISegmentedControl will allow switching between the 2 arrays
  Can you confirm this setup should reproduce the bug ?

Also, can you test with the develop branch as well ? Is the bug still there ?

[Maverick1st]

I had some problems downloading the development branch. Unfortunately my knowledge about github is rather small.
As far as i can say i could reproduce the bug with the current master branch in a Viewcontroller i created myself.
Currently i dont have more info than the one i provided you with, but i will look deeper into it if it helps.
Regarding to your demo3. That should reproduce the bug. The bug occured everytime i changed the content of the data array. So this should be fine.

[gmoledina]

I added a segmentedControl to switch content data in demo1 (in develop branch).

Works fine with me.
We'll check this issue again after merging all develop branch in master branch.

[ecirb67]

I still have the problem, my cells don't show when I reloadData...

[aquarius]

I also ran into this bug and found time to debug it today.

In my case the problem was the UIViewAnimation block in reloadObjectAtIndex:withAnimation:. In some cases the completion block got executed after currentView got reused. This caused that the view got removed from the scrollview although it was already used as a cell somewhere else. Very stupid bug to debug. My recommendation to fix this bug would be the introduce a new view tag that indicates that the view is used for an animation and shouldn't be reused at this time.

[gmoledina]

Thanks for the additional info on the bug !

If I'm not mistaken, @steipete fixed this in the develop branch by removing the reused cell from the array before the animation block. Can you confirm Peter ?

[steipete]

I'm not sure I fixed that one. Only thing I can remember is that my fix stopped scrolling to the top on reloadData.

[gmoledina]

Alright, we'll look into this!

[Maverick1st]

Have you yet found out what the error is, or how it can be fixed? And can you tell me, how i can switch to developers branch in github? Its only showing me the master branch.
I'll look into it today, too. So maybe i can find something.

[dennda]

See that button on the left that says "branch: master" in this screenshot: http://cl.ly/33382e472p1C1n2k0E0j

You will need to switch to that branch on your local development machine, too. See one of the plenty git resources on the web, e.g. http://book.git-scm.com/

[Maverick1st]

thx. Now i got it.
Unfortunately the bug still occurs, after switching to the developers branch.
But in the Demo it works. I'll try to find out, why. Maybe i have done something wrong in my implementation of the delegatemethods.

[Maverick1st]

Ok, After more testing i discovered, that the bug was an issue of using a xib instead implementing the view representing the GMGridView by code and too much copy and paste without thinking.
That way i accidentally created two gridviews, which was very hard to debug, because the second alloc init call of GMGridView was done by my xib and thus i got neither a log, nor an additional call of the methods, i had my logs in.
I finally discovered it by scrolling "over" the scrollview content size and found that there was sitting a second GMGridView displaying the data i wanted.

I'm sorry for all that confusion my error produced, but i might also be, that using the developers branch also had some part in getting this to work for me.
Anyway, now i can use this supercalifragilisticexpialigetc framework!

Thanks to all of you for your patience and your support.

[steipete]

See, another reason why I'm generally against using XIB's. Glad you found it though.

[aditya422]

I have four cells in my gmgridview i want to lock the cell at particular index while other 3 cells are able to it would be better if i have method like

• (BOOL)GMGridView:(GMGridView *)gridView shouldAllowMovingCell:(GMGridViewCell *)view atIndex:(NSInteger)index;

so that i can allow only those cells to move which i want

Is there any solution for my problem in current library. If yes then please let me know