Cell background colour only shows up to the text - cocoa-touch

I have gone as far as to use the following code to set the background colour of a TableView cell (in cellForRowAtIndexPath)
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:CellIdentifier] autorelease];
cell.accessoryType = UITableViewCellAccessoryDetailDisclosureButton;
cell.backgroundColor = [UIColor yellowColor];
cell.contentView.backgroundColor = [UIColor yellowColor];
UIView* backgroundView = [ [ [ UIView alloc ] initWithFrame:CGRectZero ] autorelease ];
backgroundView.backgroundColor = [ UIColor yellowColor ];
cell.backgroundView = backgroundView;
for ( UIView* view in cell.contentView.subviews )
{
view.backgroundColor = [ UIColor yellowColor ];
}
}
// Set up the cell...
if ([[menuList objectAtIndex:indexPath.row] isKindOfClass:[Category class]])
{
cell.text = ((Category *)[menuList objectAtIndex:indexPath.row]).name;
}
else
{
[cell setText: [menuList objectAtIndex:indexPath.row]];
}
return cell;
}
However when it renders only part of the cell has the background applied kind of like this (where z is the bg fill), even the background of the Accessory is colour but not the text.
xxxxxxxxxxxxxxxxxxxx
zzzSearch
xxxxxxxxxxxxxxxxxxxx
The only way I see to be able to change the background of the text is by setting the background colour of the whole table view in Interface Builder

I bet your text is an opaque UILabel. I remember having to add myText.backgroundColor = [UIColor clearColor] to the content text UILabel to get this to work right.

I have managed to do it using a Custom TableViewCell object, but Im sure there must be a way to do it without

Related

Dragging from a tableviewcell to a viewcontroller not auto segueing

I am trying to use Storyboards on this project. I cntrl drag from a static tableview cell to a new viewcontroller select push.
When I run the app and click the tableviewcell, which I dragged from in the previous step, nothing happens?
I am not sure if I have screwed things up by also putting in my tableviewcontroller class the following method.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier1 = #"Cell1";
UITableViewCell *cell = (UITableViewCell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier1];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier1];
}
[cell.textLabel setFont:[UIFont fontWithName:#"GothamRounded-Light" size:18]];
cell.textLabel.backgroundColor = [UIColor clearColor];
cell.detailTextLabel.backgroundColor = [UIColor clearColor];
[cell.detailTextLabel setFont:[UIFont fontWithName:#"GothamRounded-Light" size:12]];
cell.contentView.backgroundColor = [UIColor statOffWhite];
if (indexPath.row == 0) {
cell.textLabel.text = #"Profile";
}
else if (indexPath.row == 1) {
cell.textLabel.text = #"Support";
}
else if (indexPath.row == 2) {
cell.textLabel.text = #"Share";
}
else if (indexPath.row == 3) {
cell.textLabel.text = #"About";
}
else if (indexPath.row == 4){
cell.textLabel.text = #"";
cell.frame = CGRectMake(0, 0, self.view.bounds.size.width, 200);
UIImageView *watermark = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"watermark.png"]];
watermark.frame = CGRectMake((cell.frame.size.width/2) - (watermark.image.size.width/2), 80, watermark.image.size.width, watermark.image.size.height );
[cell addSubview:watermark];
}
return cell;
}
// UPDATE ////////
I took out the cellForRowAt method and the storyboard thing worked. But since I have taken out that method how can I set my font on my cell to be a custom font that isn't in Xcode's selections? I have included the font in my project, which I use everywhere.
What happen with your implementation of cellForRowAtIndexPath: is that your are creating cells from scratch and overwriting the storyboard's cells (hence your segue not being triggered).
If you defined static cells in your storyboard, you should not dequeue and create cells yourself. If your class is a subclass of UITableViewCellController, you could call the implementation of super and use the returned cell.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [super tableView:tableView cellForRowAtIndexPath:indexPath];
// Customize your cell here
}
Note however that doing so makes little sense : all the things you are doing in your cellForRowAtIndexPath: method could and should for simplicity sake be done in the storyboard.
If you really need to customize a static cell programmatically, the way to go is to define an outlet to this cell in your view controller and customize the cell in the appropriate method (viewDidLoad for example).

How to set separator of one section of tableView to clear

I have four sections in my tableView, and I want only the last section to have a clear separator. I know how to do this for the whole tableView, but cannot find any solution for my question. The only solution that I have thought of is to create the cell as an image in Photoshop and set that image as the cell background. Does anyone have an idea of how to do this without having to use Photoshop?
Try this one
In View didLoad
tableView.separatorStyle = UITableViewCellSeparatorStyleNone;
And
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if(cell==nil)
{
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, tableView.bounds.size.width, 1)];
view.backgroundColor = [UIColor greenColor];
view.tag = 101;
[cell addSubview:view];
}
if (indexPath.section == 0)
{
[[cell viewWithTag:101] setHidden:YES];
}
else if(indexPath.section == 1)
{
[[cell viewWithTag:101] setHidden:NO];
}
return cell;
}

Background of View inside UITableView which is inside UITableViewCell

I have a UITableView inside UITableViewCell. The inner tableview is of size 5 with each cell contentview of different background color and is editable.I'm able to reorder the tableviewcells of inner tableview.
I have a custom backgroundview for outer UITableViewCell.
UIView *selectedBackgroundView = [[UIView alloc] init];
selectedBackgroundView.layer.borderColor = [[UIColor grayColor] CGColor];
selectedBackgroundView.layer.borderWidth = 1;
selectedBackgroundView.backgroundColor = [UIColor clearColor];
cell.selectedBackgroundView = selectedBackgroundView;
When I select the tableviewcell, the bg color of tableviewcells of inner tableview changes to white.
//CellForRow code of Parent TableView
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
TableViewCellCustom *cell = (TableViewCellCustom *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
[[NSBundle mainBundle] loadNibNamed:#"TableViewCellCustom" owner:self options:nil];
cell = _tableViewCellCustom;
UIView *selectedBackgroundView = [[UIView alloc] init];
selectedBackgroundView.layer.borderColor = [[UIColor grayColor] CGColor];
selectedBackgroundView.layer.borderWidth = 1;
selectedBackgroundView.backgroundColor = [UIColor clearColor];
cell.selectedBackgroundView = selectedBackgroundView;
}
CustomPosition *customPosition = [_filteredArray objectAtIndex:indexPath.row];
[cell setProductsArray: customPosition.productsArray];//Sets the products and reloads child tableview
return cell;
}
//CellForRow of Child Tableview
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
TableViewCellProduct *cell = (TableViewCellProduct *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
[[NSBundle mainBundle] loadNibNamed:#"TableViewCellProduct" owner:self options:nil];
cell = _tableViewCellProduct;
cell.viewProduct.transform = CGAffineTransformRotate(cell.viewProduct.transform, M_PI_2);
}
switch (indexPath.row) {
case 0:
cell.viewProduct.backgroundColor = [UIColor redColor];
break;
case 1:
cell.viewProduct.backgroundColor = [UIColor greenColor];
break;
case 2:
cell.viewProduct.backgroundColor = [UIColor blueColor];
break;
case 3:
cell.viewProduct.backgroundColor = [UIColor yellowColor];
break;
case 4:
cell.viewProduct.backgroundColor = [UIColor grayColor];
break;
default:
break;
}
Product *product = [_productsArray objectAtIndex:indexPath.row];
cell.lblProductName.text = product.name;
return cell;
}
Child tableview is rotated because i wanted horizontal tableview.
Anyone knows what is the solution for this?
When a table view cell is selected the framework goes through all subviews and changes thier background colour to UIColor clearColor. This is so that the background colour of the table view cell can be seen properly. Usually this is what you want.
If it isn't what you want, you need to subclass UITableViewCell so that, after selection, you can restore the background colour of all of the subviews. Or manage the result of the selection entirely yourself.

Graphics in UITableView cells disappearing

Got a strange problem where I'm putting some text into a cell (using cell.textLabel) and a small "tick" graphic to the right of the cell. When I select the cell, the tick is supposed to appear, or disappear if it's already there. What actually happens is the tick appears then fades out again almost instantly. It's all pretty standard code, so if anyone's got any idea what's going on I'd be pleased to hear!
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
NSUInteger section = [indexPath section];
NSUInteger row = [indexPath row];
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
} else {
while ([[cell.contentView subviews] count] > 0) {
UIView *labelToClear = [[cell.contentView subviews] objectAtIndex:0];
[labelToClear removeFromSuperview];
}
}
NSString *theName = [[contacts objectForKey:[contactsKeys objectAtIndex:section]] objectAtIndex:row];
cell.textLabel = theName;
if (section == 0) {
cell.textLabel.textAlignment = UITextAlignmentCenter;
} else {
cell.textLabel.textAlignment = UITextAlignmentLeft;
}
if ([selectedContacts containsObject:theName]) {
CGFloat cellRight = tableView.frame.size.width - 70;
UIImage *theTickImage = [UIImage imageNamed:#"Tick.png"];
UIImageView *theTickImageView = [[[UIImageView alloc] initWithImage:theTickImage] autorelease];
theTickImageView.frame = CGRectMake(cellRight, 10, theTickImage.size.width, theTickImage.size.height);
[cell.contentView addSubview:theTickImageView];
}
return cell;
}
Many thanks for any help!
Well, I've figured it out - the cell.textLabel was sitting on top of my graphic, so obscuring it. I just set the backgroundColor property of the textLabel to [UIColor clearColor] and all was well - maybe I could have made my graphic sit on top of the textLabel, I haven't tried that yet.

iOS tableview cell handling

I have this code, where "lineaRedToday" is an UIImageView:
- (void)viewDidLoad {
[super viewDidLoad];
lineaRedToday = [UIImage imageNamed:#"line4.png"];}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *MyIdentifier = #"MyIdentifier";
MyIdentifier = #"tblCellView";
TableViewCell *cell = (TableViewCell*)[tableView dequeueReusableCellWithIdentifier:MyIdentifier];
if(cell == nil) {
[[NSBundle mainBundle] loadNibNamed:#"TableViewCell" owner:self options:nil];
cell = tblCell;
}
cell.selectionStyle = UITableViewCellSelectionStyleNone;
[[lineDay objectAtIndex:currentTodaylineRed -1] setImage:lineaRedToday];
return cell;
- (IBAction) change{
lineaRedToday = [UIImage imageNamed:#"linea.png"];
[lineDay setImage:lineaRedToday];
[myTableView reloadData];
}
It is a UITableView with 15 custom UITableViewCell and I want to change the image at an UIImageView, this ImageView is "lineDay", lineDay is present in all cells, and I want change its image at all cells, but the IBAction "change" change the UIImageView only in the last cell and not at all....why?
yes it will change the image in last cell because it has the reference of only last cell, if you want to do this then when you are creating cell in cellForRowAtIndexPath check for a BOOL and set image according that BOOL. Also in IBAction change that BOOL value and call reloadData on table view to reload it. As -
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Test";
UITableViewCell *cellView = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cellView == nil)
{
cellView = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier] autorelease];
UIImageView *bgImgView = [[UIImageView alloc] initWithFrame:CGRectMake(0.0f, 0.0f, 320.0f, 85.0f)];
[bgImgView setTag:1];
[bgImgView setBackgroundColor:[UIColor clearColor]];
[cellView.contentView addSubview:bgImgView];
[bgImgView release];
}
UIImageView *imgView = (UIImageView*)[cellView viewWithTag:1];
if (buttonPressed)
{
[imgView setImage:[UIImage imageNamed:#"listing_bg"]];
}
else
{
[imgView setImage:[UIImage imageNamed:#"featured_listing_bg"]];
}
return cellView;
}
- (IBAction) change{
buttonPressed = !buttonPressed;
[myTableView reloadData];
}
First, lineaRedToday is an UIImage, not an UIImageView. The first is an image, the second an object in the view hierarchy.
Then, in your code
if(cell == nil) {
[[NSBundle mainBundle] loadNibNamed:#"TableViewCell" owner:self options:nil];
cell = tblCell;
}
you use tblCell. I cannot see what this is. You should assign something from what you were just loading from the nib.
I don't know what lineDay is exactly, but a single view (i.e. UIImageView) can only be present in one cell, not in many. If you change the image (lineaRedToday), you still have to set this new image in your views. There should be something like
cell.yourImageView.image = linaRedToday;
when configuring the cell.