how do i let text fit to UIButton?

Question

problem:

Button size is enough, however when I change title, the title text cannot fit the button width. Any SDK function can solve this problem, or I need to manually code to solve it?

Please refer to following pictures.

design in the nib file.

initial show in simulator

when I change the title text

tried some ways before

1. _button.titleLabel.adjustsFontSizeToFitWidth = YES;
   the way will change my font size. I cannot accept the way.

2. [_button setTitleEdgeInsets:UIEdgeInsetsMake(10.0, 10.0, 0.0,0.0)];
   the way change label's position only, not label size.

3. [_button.titleLabel sizeToFit];
   result is same with picture(3).

4. [_button sizeToFit];
   title moved to upper left corner, and the title still the same result.

Just confused, my button size is big enough, why title size is so small?

Answer 1

Use this.

Objective-c

button.titleLabel.numberOfLines = 1; button.titleLabel.adjustsFontSizeToFitWidth = YES; button.titleLabel.lineBreakMode = NSLineBreakByClipping;  

Swift 2.0

button.titleLabel?.numberOfLines = 0 button.titleLabel?.adjustsFontSizeToFitWidth = true button.titleLabel?.lineBreakMode = NSLineBreakMode.ByWordWrapping 

NOTE: Swift code courtesy: @Rachel Harvey

Swift 5.0

button.titleLabel?.numberOfLines = 0 button.titleLabel?.adjustsFontSizeToFitWidth = true button.titleLabel?.lineBreakMode = .byWordWrapping 

Answer 2

For people who come across with this question:

Try using the setter:

 [self.myButton setTitle:@"Title" forState:UIControlStateNormal];  [self.myButton sizeToFit];