CODEWITHSUNDEEP
objective-ccocoauibutton
Marnix
Marnix

Reputation: 79

UIButton action not working

I am having some trouble with the UIButton.

This is my code:

enter image description here

I am not using the Interface Builder and I am a new programmer.

What I want is that when the button is selected the title changes and the button's transparency changes from half visible to fully visible.

Thanks in advance, -Marnix

Upvotes: 0

Views: 1235

Answers (2)

Selkie
Selkie

Reputation: 1783

First of all, you should set title for different control state like

[Button1 setTitle:@"UnTapped" forState:UIControlStateSelected];

Second, you don't need to put setTitle method inside of this check.

Besides, you need to put this check inside of a method of the button to make it work. If you didn't use IB, then just use addTarget: action: forControlEvent like

[Button1 addTarget:self actoin:@selector(changeButtonState:) forControlEvent:UIControlEventTouchUpInside];

Lastly, did you make the button keep selected after touch? If not, add 

Button1.selected = !Button1.selected

in the method. All in all, your method should looks like this

- (IBAction)buttonAction:(id)sender {
    Button1.selected = !Button1.selected
    if(Button1.selected == NO) {
        Button1.alpha = 0.5
    }else if(Button1.selected == YES) {
        Button1.alpha = 1.0
    }
}

Upvotes: 1

user1388320
user1388320

Reputation:

The problem is that the if statement is just executed once, when you're creating the button. Inside MyCode2, add this line:

[Button1 addTarget:self action:@selector(buttonAction:) forControlEvents:UIControlEventTouchDown];


Every time that the button's pressed, the buttonAction method will be executed, so:

- (IBAction)buttonAction:(id)sender {
    if(Button1.selected == NO) {
        // Do your "NO" stuff
    }else if(Button1.selected == YES) {
        // Do your "YES" stuff
    }
}

You have to declare this IBAction in your .h and add this method in your .m file.

Upvotes: 1

Related Questions