I have custom UITableViewCells (created in interface builder) which are used for a static UITableView which for the sake of argument I will call the AddUserTableViewController (i.e. I do not use autoreleased cells as I only have 5 rows).
In the top cell (used for the user name) I have embedded a UIButton which I use to open an UIActionSheet which in turn allows an UIImagePicker to set an image on the UIButton (i.e. [button.imageView.image = imageFromImagePicker]). The button has a default image (added in IB) which says "add image".
The image on the button is set without issue and remains in place even when I navigate to the detail page of any of the table cells with the exception of the user name cell which contains the button. When I select this cell the image dissapears and does not reappear once I navigate back to the AddUserTableViewController from the "add name" detail view. The "add image" default image, referred to above, is displayed.
I have tried many strategies amongst which have been:
1) using [self.tableView reloadData], [button.imageView setNeedsDisplay], [self.view setNeedsDisplay] in the viewWillAppear method;
2) using the above methods in the cellForRowAtIndexPath method;
3) using the above methods in the overriden willDisplayCell:forRowAtIndexPath: method;
When I place debugging NSLog statements in the program I can see that the button.imageView.image property is still set to the image selected using the UIImagePicker but it is not displayed (the default image from the nib is displayed).
As I mentioned above, this only happens if I navigate away from the AddUserTableViewController by selecting the UITableViewCell within which the UIButton is embedded.
I am currently at a loss as to what to do and would be extremely grateful for any assistance that anyone could offer. I just need to find a way to update the image on the embedded UIButton in the above-mentioned circumstances.
I've added the a section of the code from the cellForRowAtIndexPath: method just for illustrative purposes -
//populates the personal info section
if (section == kPersonalInfoAddSection) {
//Covers the add image button and the name adding field
if (row == kNameRow) {
UILabel *nameLabel = (UILabel *)[nameCell viewWithTag:kMainTextTag];
UILabel *reqLabel = (UILabel *) [nameCell viewWithTag:kSubTextTag];
//UIButton *imageButton = (UIButton *) [nameCell viewWithTag:kImageTag];
if (mainUser.imagePath != nil) {
UIImage *img = [UIImage imageWithContentsOfFile:mainUserImagePath];
imageButton.imageView.image = img;
[imageButton.imageView setNeedsDisplay];
//[imageButton setNeedsDisplay];
//[nameCell setNeedsDisplay];
NSLog(@"************************** Added the BESPOKE image (%@)to the image button", img);
}
else {
NSLog(@"************************** Added the DEFAULT image (%@)to the image button", addUserImage);
imageButton.imageView.image = addUserImage;
}
UIColor *blackText = [[UIColor alloc] initWithWhite:0 alpha:1];
NSString *firstName;
if (mainUser.firstName){
nameLabel.textColor = blackText;
firstName = mainUser.firstName;
}
else {
nameLabel.textColor = reqLabel.textColor;
firstName = NAME_STRING;
}
NSString *lastName = (mainUser.lastName)? mainUser.lastName : EMPTY_STRING;
NSString *name = [[NSString alloc] initWithFormat:@"%@ %@", firstName, lastName];
nameLabel.text = name;
reqLabel.text = REQUIRED_STRING;
[blackText release];
return nameCell;
}