adding/removing underline on UIButton When Selected

Question

Since the UISegmentedControl cannot be customized in IOS 7 , and since my project deserves a certain degree of customization, i decided to create two UIButtons Manually, with a bool variable to tell which button is clicked, and the reload a tableView :

- (IBAction)pastFun:(id)sender {
    statusClicked = FALSE;
    NSMutableAttributedString *commentString = [[NSMutableAttributedString alloc] initWithString:@"PAST"];

    [commentString addAttribute:NSUnderlineStyleAttributeName value:[NSNumber numberWithInteger:NSUnderlineStyleSingle] range:NSMakeRange(0, [commentString length])];

    [pastBut setAttributedTitle:commentString forState:UIControlStateNormal];
    [self.tableView reloadData];
}
- (IBAction)pendingFun:(id)sender {

    statusClicked = TRUE;
    [self.tableView reloadData];
}

in pastFun, i added the following block in order to underline the button when selected, and it works :

NSMutableAttributedString *commentString = [[NSMutableAttributedString alloc] initWithString:@"PAST"];

[commentString addAttribute:NSUnderlineStyleAttributeName value:[NSNumber numberWithInteger:NSUnderlineStyleSingle] range:NSMakeRange(0, [commentString length])];

[pastBut setAttributedTitle:commentString forState:UIControlStateNormal];

What i want to do is, when the pendingFun is called ( next button is clicked), remove the underline from the first button and then underline the second, i can't seem to find the right way to accomplish that. Any ideas how to do so?

The best way is create one images that background is transparent with single line and set this image as background of your selected button. — iPatel, Apr 30 '14 at 09:53
Is your issue about removing the underline attribute? Check that: http://stackoverflow.com/questions/23246543/how-to-remove-underline-in-uibutton-in-ios7-1-programetically/23246993#23246993 — Larme, Apr 30 '14 at 09:55
Try...in link [How to Display Underlined Text in a Button?](http://stackoverflow.com/a/35066755/1947330) — Ar No, Sep 10 '16 at 15:00

score 5 · Answer 1 · answered Apr 30 '14 at 09:55

I think it's best to select and deselect the button.

- (void)viewDidLoad
{
    [super viewDidLoad];        

    NSAttributedString *attrNormal = [[NSAttributedString alloc] initWithString:@"Button" attributes:@{NSUnderlineStyleAttributeName:[NSNumber numberWithInt:NSUnderlineStyleNone]}];
    NSAttributedString *attrSelected = [[NSAttributedString alloc] initWithString:@"Button" attributes:@{NSUnderlineStyleAttributeName:[NSNumber numberWithInt:NSUnderlineStyleSingle]}];

    UIButton* boton = [[UIButton alloc] initWithFrame:CGRectMake(20, 50, 100, 30)];
    [boton setAttributedTitle:attrNormal forState:UIControlStateNormal];
    [boton setAttributedTitle:attrSelected forState:UIControlStateSelected];
    [boton addTarget:self action:@selector(buttonPressed:) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview:boton];
}

- (void) buttonPressed:(UIButton *) boton {
    boton.selected = !boton.selected;
}

In your case, with two buttons. You'll just have to keep a property to store the selected button (self.selectedButton for example). And in buttonPressed do this:

- (void) buttonPressed:(UIButton *) boton {
  self.selectedButton.selected = NO;
  self.selectedButton = boton;
  self.selectedButton.selected = YES;
}

adding/removing underline on UIButton When Selected

1 Answers1