is it possible to make a distance between cells like that in standard UITableView? There is no options to make separator bigger. Also this distance from right and left.
you can do this by set your cell background to whatever background you want (let's say gray in this case) and in the cell, add a white uiview with left, right, and bottom margin like this:
Then go to your table view, set the separator as none
and one last step, set the background of your table view to the same gray background as your cell.
Then you don't have to do anything particularly in your code besides simply initial your table cell based on the custom nib file (i assume you want to do this anyway).
If you prefer to construct your cell in codes, you can use the same logic.
in method:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
...
cell.backgroundColor = [UIColor whiteColor];
// This will create a line of 3 pixels that will be separating the cells
UIView *separator = [[UIView alloc] initWithFrame:CGRectMake(0,0,320,3)];
separator.backgroundColor = [UIColor darkGrayColor];
[cell.contentView addSubview: separator];
// and if you want the border do left and right add:
UIView *separatorRx = [[UIView alloc] initWithFrame:CGRectMake(318,0,2,cell.frame.size.height)];
separatorRx.backgroundColor = [UIColor darkGrayColor];
[cell.contentView addSubview: separatorRx];
UIView *separatorSx = [[UIView alloc] initWithFrame:CGRectMake(0,0,2,cell.frame.size.height)];
separatorSx.backgroundColor = [UIColor darkGrayColor];
[cell.contentView addSubview: separatorSx];
return cell;
}
One way would be to set the backgroundView of the UITableViewCell to an UIImageView containing this white box on that gray background
You have to make a subclass of UITableViewCell. In your own subclass you may make everything you dream about! So, you need to add UIView with whiteColor background and margins as subview on your custom UITableViewCell.
There is not padding option in UITableView. You can either add a UIView in your UITableViewCell which will contains all the cell subviews, and change it's frame to create a padding right in the cell.
I suggest you to use UICollectionView instead, you can easily set the space between cells using a layout. If the cell is smaller than the actual collection View, then it's automatically centered.
Related
I have created a bunch of cells which I reuse in a table view. All of those cells just have different UILabels inside them and some UIImageViews (nothing covers the complete cell).
Setting the background color in IB has no effect (always white or transparent, can't say which one of them). But if I press Command-R (simulate interface) the cell has the correct background color in the simulator.
I tried to set it in tableView:cellForRowAtIndexPath: but it doesn't work like I would think either.
This does the trick:
cell.contentView.backgroundColor = [UIColor redColor];
but these have no effect (even if I set the cell.contentView.backgroundColor to clearColor):
cell.backgroundView.backgroundColor = [UIColor redColor];
cell.backgroundColor = [UIColor redColor];
I set all the layout/font/background stuff in IB. Any idea why this isn't working in this case?
Why do I need to modify the contentView's backgroundColor and not the backgroundView's?
It seems to be a common issue. Could somebody please point me in the right direction to (finally) understand how background colors are handled within a table view cell.
To change the background color of the cell, you have to do it in the willDisplayCell:forRowAtIndexPath: method. This is mentioned in the UITableViewCell documentation near the bottom of the Overview. So you need:
- (void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath
{
cell.backgroundColor = [UIColor redColor];
}
The contentView is just the recommended subview to put custom controls in so that the cell gets layed out properly when table editing is going on.
There's an easier solution: When you create a UITableViewCell in Interface Builder, simply drag and drop an additional UIView so that it covers the entire UITableViewCell you're creating within IB. Place your additional UI elements on top of this additional UIView. You can set this extra UIView to whatever background you like.
There are quite a few answers on StackOverflow that suggest you change the background color of your UITableViewCell by using a line of code like this one:
cell.contentView.backgroundColor = [UIColor redColor];
If you add a drop shadow to your cell by adjusting the contentView's frame size slightly, you may find that this line will change both the background color of your cell and the color of your drop shadow area as well.
I have a UITableViewCell in which I would like to draw some lines (say a 2pt line at 1/3rd from top of the TableCell covering the whole width). The lines would always be in the same place within the tableview cell.
One straightforward solution is to just have a -drawRect method that will use CGContextStrokePath to draw the line. But that seems to be like an overkill since it would call drawRect everytime which is inefficient.
I would think that there would be a way to be able to cache it somehow, so that all tableview cells are created with the lines by default. One way I can think of is to create 2pt*2pt png file and add it to a UIImageView on top of the tableview cell. Any other ways?
Try this -
Add this code in your cellForRowAtIndexPath, just adjust y position og this image view-
UIImageView *seperatedImageView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 49, 320, 1)];
seperatedImageView.backgroundColor = [UIColor colorWithRed:201.0/255.0 green:250.0/255.0 blue:152.0/255.0 alpha:1.0];
[cellBackView addSubview:seperatedImageView];
Another option is, to add a UIView and set its background color. For example:
UIView *lineView = [[[UIView alloc] initWithFrame:CGRectMake(0,0,cell.contentView.bounds.size.width, 2)] autorelease];
lineView.backgroundColor = [UIColor grayColor];
[cell.contentView addSubview:lineView];
You can just add a UIView like a subView of your UITableViewCell.
I have a table,with settings that cell height is 40px.
If my cells have a label, image or any other component starting at 41px it will still appear in the table overlaping the cells underneath.
How to resolve this? I do not want the rest of the cell to be shown, just the height that is
set in my table settings.
Thank you.
Please add up these methods and try,
-(float)tableView:(UITableView*)tableView heightForFooterInSection:(NSInteger)section
{
return 0.01;
}
- (UIView *)tableView:(UITableView *)tableView viewForFooterInSection:(NSInteger)section {
UIView *view = [[[UIView alloc] initWithFrame:CGRectMake(0, 0, tableView.frame.size.width, 1)] autorelease];
view.backgroundColor = [UIColor clearColor];
return view;
}
Using this will be considered as end of data from data source. And rest cells will not be displayed.
[Will solve this issue - If my cells have a label, image or any other component starting at 41px it will still appear in the table overlaping the cells underneath]
You want to hide the content of cell that is below the 40px level? Add UIView to cell.contentView with white colour above the content of cell with 41px origin.y
A little late, but just in case anyone else is running into this issue. If using IB, ensure "Clip Subviews" is checked on your table view cell. And this:
self.contentView.clipsToBounds = YES;
should do the same thing.
You didn't solve this problem because the point is not the UITableViewCell. It's Aspect Fill Mode of UIImageView.
Select the UIImageView in the SB, check this on!
I've used -[UITableView setSeparatorColor:] to set the red border in the attached image. But how do I set the color of the border showing up as white?
EDIT: I know I can use the UITableViewSeparatorStyleSingleLine style to get rid of the white color entirely. But I don't want to do that: I want to change its color. Thanks!
The white color is because the separator style is set to Single Line Edged. If you change it to Single Line the white lines will disappear. Not sure if that solves your problem but I don't think you change the color without doing a lot more work.
Try making a "line view" for the cells. So in cellForRowAtIndexPath: method just add that to the cell that you need:
UIView *lineView = [[[UIView alloc] initWithFrame:CGRectMake(0, 0, cell.contentView.bounds.size.width, 1)] autorelease];
lineView.backgroundColor = [UIColor whiteColor];
lineView.autoresizingMask = 0x3f;
[cell.contentView addSubview:lineView];
that will add that white line to the top of the each cell. If you don't want it for the very first row add an if-statement:
if (indexPath.row != 0)
{
UIView *lineView = [[[UIView alloc] initWithFrame:CGRectMake(0, 0, cell.contentView.bounds.size.width, 1)] autorelease];
lineView.backgroundColor = [UIColor whiteColor];
lineView.autoresizingMask = 0x3f;
[cell.contentView addSubview:lineView];
}
Hope it helps.
You are trying to change the default iOS user interface but the change is so complex that it can't be done with the default properties.
What is the solution? Just remove the lines drawn by UITableVie (setting the color to [UIColor clearColor]) and customize UITableViewCell background.
Of course, you need 3 types of backgrounds - for the first cell, for the last cell and for the middle ones:
- (UITableViewCell*)tableView:(UITableView*)tableView cellForRowAtIndexPath (NSIndexPath*)indexPath {
UITableViewCell* cell = [...];
UIView* background;
if (indexPath.row == 0) {
background = [...]; //background for the first cell
}
else if (indexPath.row + 1 == [self tableView:tableView numberOfRowsInSection:indexPath.section]) {
background = [...]; //background for the last cell
}
else {
background = [...]; //background for the middle cells
}
cell.backgroundView = background;
}
The question is how to create the background. Usually I just use an UIImageView or a combination of several UIImageView (rounded corner as one image and the lines as resizible images).
You can't.
This built-in drawing is specific to grouped-style tableView, and can't be changed (to my knowledge...)
There's a workaround to this (we've used -> sorry no source code), but i guess you're not going to like it :
1/ have information of each cell's position
2/ to re-implement drawing of EACH cell's background, depending on its position (so you have to save this position : FirstCell, MiddleCell, LastCell,) to reproduce the grouped tableView look.
A way to do this is with CoreGraphics :
From your subclassed CellGroupedBackgroundView (or customGroupedTableViewCell, depending on the design you choose) you create 2 nearly identical CAShapeLayers. Each one for each separator color. And you expose these colors as properties of your CellGroupedBackgroundView.
You set these layer's path depending on the position property you have set (using only CGPathAddLineToPointfor middle cells, and CGPathAddArcToPoint for first and last cell)
2/ use that created custom backgroundView on a plain UITableView, setting each cell's 'position' according to its indexPath...
Good luck :)
Why doesn't UITableViewCell background color work (set in interface builder)?
I note from some searching that the follow code set in your custom subclass of UITableViewController does work (see below):
- (void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath {
cell.backgroundColor = [UIColor redColor];
}
But I would still like to just understand why interface builder has a background color setting for the TableViewCell, which effectively doesn't seem to work?
It's a bit late, but I just ran into this issue... Setting the background color on the contentView works fine:
cell.contentView.backgroundColor = [UIColor redColor];
What worked for me is creating my own UIView object to be set as the background view of the UITableViewCell. In the cellForRowAtIndexPath:
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
UIView* bgview = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 1, 1)];
bgview.opaque = YES;
bgview.backgroundColor = [UIColor orangeColor];
[cell setBackgroundView:bgview];
Trying to set the background colour of the UITableViewCell itself is not how you should be doing it. A table cell has a collection of five useful views you can access, one of which is backgroundView.
Recommended reading:
http://cocoawithlove.com/2009/04/easy-custom-uitableview-drawing.html
and then:
http://cocoawithlove.com/2010/12/uitableview-construction-drawing-and.html
You should always provide changes for cells in tableView:willDisplayCell:forRowAtIndexPath: instead of the tableView:cellForRowAtIndexPath: method, as per Apple Documentation.
This Works !!
[cell.textLabel setBackgroundColor:[UIColor clearColor]];
[cell.contentView setBackgroundColor:[UIColor redColor]];
Make sure before defining a cell color your backgroundView is null
cell.backgroundView = nil;
cell.backgroundColor = [UIColor redColor];
This is simple and works: in interface builder, add a view object to the UITableViewCell of the same dimensions, and place your controls inside that view. Then you get whatever background color you want.
Edit: here's a reason to accept, it just struck me: take a careful look at what you get when you double click on a UITableViewCell in IB that you place into your nib, to start adding stuff to it: you don't get a plain rectangle looking view, you get an oval rectangle that says quite clearly: Content View. So all you can do is set the content view of the UITableViewCell in IB, and setting the background color property of the content view does not produce the color change in the table. As the docs say, UITableViewCells are complex beasts with many parts with a lot going on behind the scenes in terms of the UITableView adjusting it and fiddling with it.
It works perfectly, if you pick the tableview and set background to for example red the whole table will be red.
maybe you do not linked the table or something
hope it helped
(try this)
Apple's IB's design is generic to be applied to multiple kinds of components, and is also targeted at a highly technical audience (developers). Hence it has not been designed (as an application) to fully customise the interface properly for each component/situation type. So in this case it is the case the ability to seemingly set the background-color is somewhat misleading.
Y not, use setBackgroundColor
self.table.separatorColor=[UIColor whiteColor];
[table setBackgroundColor:[UIColor colorWithRed:.8 green:.8 blue:1 alpha:1]];
You can partially do this in Interface Builder (probably added to Xcode recently):
Expand the cell in the Storyboard's Document Outline and select "Content View"
Set Content View background color in the Attributes Inspector
Select each content item in the cell and set their background colors
to ClearColor
Still don't see a way to set the accessory background though.
I did get this issue also.
In IB you get the ability to change the background color of the cell when choosing cell. This is NOT correct. You should go to the document outline on the left of the storyboard and choose the content view inside the cell. Change the background of the content view. You should now get correct cell color.
-(void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath{
UIView *view = [[UIView alloc] init];
[view setBackgroundColor:[UIColor redColor]];
[cell setSelectedBackgroundView:view];}
We need to change the color in this method.
Try this it works for me:
- (void)tableView:(UITableView *)tableView1 willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath
{
[cell setBackgroundColor:[UIColor clearColor]];
tableView1.backgroundColor = [UIColor colorWithPatternImage: [UIImage imageNamed: #"Cream.jpg"]];
}