一个人能够解释两者之间的区别
static NSString* CellIdentifier = @"Cell";
以及
NSString *CellIdentifier = [NSString stringWithFormat: @"Cell%i", indexPath.row];
When should I use the first one 以及where the second?
一个人能够解释两者之间的区别
static NSString* CellIdentifier = @"Cell";
以及
NSString *CellIdentifier = [NSString stringWithFormat: @"Cell%i", indexPath.row];
When should I use the first one 以及where the second?
static NSString* CellIdentifier = @"Cell";
这一识别资料(假设没有其他数据)将确定一个囚室,所有囚室都需要一个新牢房。
NSString *CellIdentifier = [NSString stringWithFormat: @"Cell%i", indexPath.row];
这一识别标志将为各行各设一间囚室,即每行各设一间牢房,每个囚室只使用一个囚室。
典型的情况是,你将永远使用第一个例子。 第二大例子说明:
NSString *CellIdentifier = [NSString stringWithFormat: @"Cell%i", indexPath.row % 2];
如果你希望其他各行都有某种背景或某种背景,那将是有益的。
http://developer.apple.com/library/ios/#documentation/UserExperience/Conceptual/TableView_iPhone/TableViewCells/TableViewCells.html#/apple_ref/doc/uid/TP40007451-CH7-SW1”rel=“nofollow” here:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"MyIdentifier"];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:@"MyIdentifier"] autorelease];
cell.selectionStyle = UITableViewCellSelectionStyleNone;
}
NSDictionary *item = (NSDictionary *)[self.content objectAtIndex:indexPath.row];
cell.textLabel.text = [item objectForKey:@"mainTitleKey"];
cell.detailTextLabel.text = [item objectForKey:@"secondaryTitleKey"];
NSString *path = [[NSBundle mainBundle] pathForResource:[item objectForKey:@"imageKey"] ofType:@"png"];
UIImage *theImage = [UIImage imageWithContentsOfFile:path];
cell.imageView.image = theImage;
return cell;
}
For a basic app with nonconsumable in-app purchases, has anyone figured out best practices for using SKPaymentQueue s restoreCompletedTransactions? Observations I know it s recommended to always ...
I am trying to list the contents of Ringtones directory in a TableView, however, I am only getting the last file in the directory in ALL cells, instead of file per cell. This is my code: - (...
I have a UITextField that is a subview of a UITableViewCell. When my view loads, I want the text field to become first responder. I have a pointer to the text field in the table cell, so to do this I ...
I ve been working on adding in-app purchases and was able to create and test in-app purchases using Store Kit (yay!). During testing, I exercised my app in a way which caused the app to crash mid ...
In my app i have a bunch of data i store in the NSUserdefaults. This information consists of an NSObject (Object1) with NSStrings and NSNumbers and also 2 instances of yet another object (Object2). ...
Basically I m downloading images off of a webserver and then caching them to the disk, but before I do so I want to mask them. I m using the masking code everyone seems to point at which can be found ...
I m using this code to resize an image on the iPhone: CGRect screenRect = CGRectMake(0, 0, 320.0, 480.0); UIGraphicsBeginImageContext(screenRect.size); [value drawInRect:screenRect blendMode:...
Is there a simple way of allowing interaction with a button in a UIView that lies under another UIView - where there are no actual objects from the top UIView on top of the button? For instance, ...