Adjust UILabel Dynamically Within UITableViewCell? - ios

Question

I would like to adjust the number of lines in a UILabel dynamically. For example, there could be a long string or a short string. If there are less than 10 characters, there should be one line. If there are 10-20 characters, it should be two lines. This UILabel is inside of a UITableViewCell. Currently, if there is a long string, then the UILabel just shows "..." wherever it runs out of space, so the string is cut off. How can I prevent this from happening?

Answer 1

Try:
nameOfLabel.numberOfLines = 0
0 is supposed to be dynamic.

Answer 2

Constaints from Top Left Right Buttom of label and label.numberOfLine = 0 make it dynamically resizable according to dynamic content.

Answer 3

First set numberOfLines to 0 for that UILabel from Storyboard
Than set estimated height for your UITableView
self.tableView.rowHeight = UITableViewAutomaticDimension
self.tableView.estimatedRowHeight = 108.0
Than Add heightForRowAt method
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return UITableViewAutomaticDimension
}
Hope it Help!

Answer 4

Assign and implement tableview dataSource and delegate
Assign UITableViewAutomaticDimension to rowHeight & estimatedRowHeight
Implement delegate/dataSource methods (i.e. heightForRowAt and return a value UITableViewAutomaticDimension to it)
-
Objective C:
// in ViewController.h
#import <UIKit/UIKit.h>
#interface ViewController : UIViewController <UITableViewDelegate, UITableViewDataSource>
#property IBOutlet UITableView * table;
#end
// in ViewController.m
- (void)viewDidLoad {
[super viewDidLoad];
self.table.dataSource = self;
self.table.delegate = self;
self.table.rowHeight = UITableViewAutomaticDimension;
self.table.estimatedRowHeight = UITableViewAutomaticDimension;
}
-(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
return UITableViewAutomaticDimension;
}
Swift:
#IBOutlet weak var table: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
// Don't forget to set dataSource and delegate for table
table.dataSource = self
table.delegate = self
// Set automatic dimensions for row height
table.rowHeight = UITableViewAutomaticDimension
table.estimatedRowHeight = UITableViewAutomaticDimension
}
// UITableViewAutomaticDimension calculates height of label contents/text
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return UITableViewAutomaticDimension
}
For label instance in UITableviewCell
Set number of lines = 0 (& line break mode = truncate tail)
Set all constraints (top, bottom, right left) with respect to its superview/ cell container.
Optional: Set minimum height for label, if you want minimum vertical area covered by label, even if there is no data.
Note: If you've more than one labels (UIElements) with dynamic length, which should be adjusted according to its content size: Adjust 'Content Hugging and Compression Resistance Priority` for labels which you want to expand/compress with higher priority.

Answer 5

You need to give constraints to tableview cell's label leading, trailing, top and bottom like below...
Also set label's number of lines to zero and line breaking mode to word wrap.
And in your main view controller just add this line...
self.tableView.estimatedRowHeight = UITableViewAutomaticDimension
The above line automatically calculates the cell height as per its content.