UIlabel gets shrink on scrolling UiTableView - iphone

Question

I have two UILabel in side of UICell, which contains dynamic text so i need to resize its frame according to content, for which im using [string sizeWithFont] method to calculate the height of label view's frame inside of TableView heightForRowAtIndexPath to set the height of cell according to label height. Now what the problem is when i scroll my table, label inside of cell starts to shrink if i remove [label sizeToFit] method it doesn't shrink but from that my labels are getting overlapped which looks very messy. Where i am wrong please guide me..
here is my code for cellRowAtIndexPath method
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSLog(#"cell");
BOOL ente = FALSE;
static NSString *CellIdentifier = #"CustomCell";
CustomCell *cell = (CustomCell *) [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
NSArray *topLevelObjects = [[NSBundle mainBundle] loadNibNamed:#"CustomCell" owner:nil options:nil];
for (id currentObject in topLevelObjects){
if ([currentObject isKindOfClass:[UITableViewCell class]]){
cell = (CustomCell *) currentObject;
ente = TRUE;
break;
}
}
}
/*
[cell.title sizeToFit];
[cell.dataTime sizeToFit];
CGSize size1 = [[mainEventArray objectAtIndex:[indexPath row]] sizeWithFont:[UIFont systemFontOfSize:13.0f] constrainedToSize:CGSizeMake(275, MAXFLOAT) lineBreakMode:UILineBreakModeWordWrap];
cell.title.frame = CGRectMake(50, 6, size1.width, size1.height);
CGSize size2 = [[mainEventTimeArray objectAtIndex:[indexPath row]] sizeWithFont:[UIFont systemFontOfSize:11.0f] constrainedToSize:CGSizeMake(275, MAXFLOAT) lineBreakMode:UILineBreakModeWordWrap];
cell.dataTime.frame = CGRectMake(50, 24, size2.width, size2.height);
*/
cell.title.text = [mainEventArray objectAtIndex:[indexPath row]];
cell.dataTime.text = [mainEventTimeArray objectAtIndex:[indexPath row]];
//if (ente) {
// NSLog(#"helllloo");
[cell.title sizeToFit];
[cell.dataTime sizeToFit];
//}
return cell;
}
and for heightForRowAtIndexPath method
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"CustomCell";
CustomCell *cell = (CustomCell *) [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
{
if (cell == nil) {
NSArray *topLevelObjects = [[NSBundle mainBundle] loadNibNamed:#"CustomCell" owner:nil options:nil];
for (id currentObject in topLevelObjects){
if ([currentObject isKindOfClass:[UITableViewCell class]]){
cell = (CustomCell *) currentObject;
break;
}
}
}
}
CGSize size1 = [[mainEventArray objectAtIndex:[indexPath row]] sizeWithFont:[UIFont systemFontOfSize:13.0f] constrainedToSize:CGSizeMake(230, MAXFLOAT) lineBreakMode:UILineBreakModeWordWrap];
cell.title.frame = CGRectMake(0, 0, size1.width, size1.height);
CGSize size2 = [[mainEventTimeArray objectAtIndex:[indexPath row]] sizeWithFont:[UIFont systemFontOfSize:11.0f] constrainedToSize:CGSizeMake(230, MAXFLOAT) lineBreakMode:UILineBreakModeWordWrap];
cell.dataTime.frame = CGRectMake(0, 0, size2.width, size2.height);
//NSLog(#"%f", size1.height + size2.height + 20);
return size1.height + size2.height + 20;
//NSString *str = [heights_ objectAtIndex:[indexPath row]];
// return [str floatValue] ;
}

Answer 1

Instead of doing your own customization. Try with dynamic uitableviewcell height. You will find really usefull & comparatively easier than what you have done.
You can check it here : http://www.cimgf.com/2009/09/23/uitableviewcell-dynamic-height/ with full of explanation. Enjoy programming.

Answer 2

In your case you need to set the height of cell based on the label.
Check the link :
http://dcraziee.wordpress.com/2013/05/22/calculate-size-of-uillabel-base-on-text-in/
There is a function named
-(CGFloat)getHeightForLabel:(NSString *)_str font:(UIFont *)fontOfObject
Use that function to calculate height as :
-(float)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
CGFloat _height = [self getHeightForLabel:self.label.text font:[self.label font]];
return _height;
}
and do the same while creating and adding label in the cell.
I hope this will help.

Answer 3

NSString *reuseIdentifier = #"EventTitleCell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:reuseIdentifier];
cell=nil;
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:reuseIdentifier] ;
}

Answer 4

Try This code.
label.numberOfLines = 0; // allows label to have as many lines as needed
label.text = #"some long text";
[label sizeToFit];
NSLog(#"Label's frame is: %#", NSStringFromCGRect(label.frame));
For reference : click here