Well, I have a uitableview with 4 cells with content, so there are 4 cells displayed and other 4 cells displayed without content to fit the screen. I want all the cells in my uitableview to have a background image (the same for all). When I change the background of the cell on cellForRowAtIndexPath method only the 4 cells with content get the background image and the other 4 without content are still white. Is there any way I can set the background to all the cells an not only to the cells with content?
You may be able to add the additional four cells as blank cells to your table view. This way, they still look exactly like one of your other cells. An alternative may be to make the cells larger which would make you need to use less "filler" cells.
Hope this helps!
increase the number of rows in the section....
lets say u want 100 cells to get the background image... then the cellforRowAtIndex path will be called for 100 cells and hence will set the background..
Hope it works
Let me Know
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I have a problem with all my tableview and its separator's cell. Randomly one separator cell (sometimes more than one) is higher than the others and I don´t know why. I tried with setSeparatorColor and also adding a custom view at the end of every cell but is always the same effect. Besides, when I scrolling the tableview this occurs in other cells.
You can see pics related in this album http://imgur.com/a/U3zp4. First pic is my desired situation, second pic is how the view is showed initially and last pic is an example of scrolling.
I keep having the problem that my tableview controller always displays a lists of cells and only the first two have any data in them. Is this normal? Is it possible to have a tableview controller display only two cells (that is, the ones that have the data in them)?
In other words, the first two cells say "blah" and "blah2". All the others are blank. I know that the number of sections is 1 and the number of rows in the section is 2. I still get the first two cells displayed correctly and the rest are blank. Is this normal? How can I just display two cells?
it is not the table view controller that displays the cell. it is the table view.
you could add a tableview as subview to a view controlled by a view controller and set it frame with a height that is enough to display both cells.
Another option, set the style of the UITableview to grouped and have only one section. It will display only the number of cells you tell it in the method numberofrows:section.
I have tableView with a lot of cells. I need to remove cells, which user passes while scrolling the tableView.
cellForRowAtIndexPath is called when user scroll to this cell to perform its content and the question is there similar method to know what cells are out of the screen while scrolling?
Take a look at UITableView's visibleCells method. It'll tell which ones are visible. Then I'm assuming you know how many total cells there are and you can do the logic to work out which ones are not visible.
My question is about put into the cache some tableview's cells.
I would put some cells there to make me able to "dequeue" them when I need.
I know that cells go into the cache automatically when you scroll a tableview, but I would make it manually for all cell and not only for those are not displayed anymore because they were scrolled up or down away fron screen.
greetings
You can maintain different queues by using different cell identifier names.
With iOS 5 and storyboarding, if a cell's contents are pretty much constant, you can configure it as a static cell.
If what you're trying to do goes beyond that, you'll have to explain in more detail why you want to subvert the cell caching mechanism.
I want to customize my NSTableView. My overall requirements are like this:
Each row will have one image and some text; images and text could be different.
Some cells might not have an image.
Row height is dependent upon some external factor.
A cell shouldn't draw the background, it should show the NSTableView background.
So far I am able to draw transparent cells with some text. I Googled and found out I need to customize each cell. Now I have this question: should I maintain two columns or should one column be okay, having one image on the left hand side and text adjacent to that?
I also understand that I need to override two methods:
- (void) drawWithFrame:(NSRect)cellFrame inView:(NSView *)controlView
So for each cell, I need to draw/construct the cell -- can anyone guide me? Am I going in the right direction? Can I achieve a transparent background with dynamic height with the above approach?
Each row will have one image and some text,
So, two columns—one with an image cell, the other with a text field cell.
images and text could be different,
I should hope so.
Some cell might not have the Image,
Not a problem.
Row height is depend upon some external factor,
Be the table view's delegate, and it will ask you what the row's height should be.
Cell shouldn't draw the background,
It won't unless you set it to do so.
it should overall it should show the NSTableView background,
The table view will draw its own background anyway, which you can set in IB's Inspector. If you wanted the table view to not draw a background, you would set its background colors to the clear color.
You don't need a custom cell for any of this.