enabled a programmatically created button in Xcode - iphone

Question

I know how to set the enable = YES/NO, a button created using a property and xib. However, how do you do the same thing to a programmatically created button from another method in the same class?
For example here is my button in the viewDidLoad:
UIButton *AllList = [UIButton buttonWithType:UIButtonTypeCustom];
AllList.frame = CGRectMake(40, 80, 107.f, 53.5f); //set frame for button
UIImage *buttonImageFull = [UIImage imageNamed:#"allModsBtn.png"];
[AllList setBackgroundImage:buttonImageFull forState:UIControlStateNormal];
[self.view addSubview:AllList];
// add targets and actions
[AllList addTarget:self action:#selector(getButtons:) forControlEvents:UIControlEventTouchUpInside];
AllList.tag = 0;
I would like to set the enable of this button to YES or NO in another method.

Answer 1

#implementation {
UIButton *myButton;
}
- (void)viewDidLoad {
myButton = [UIButton buttonWithType:UIButtonTypeCustom];
myButton.tag = 121;
myButton.frame = CGRectMake(40, 80, 107.f, 53.5f); //set frame for button
UIImage *buttonImageFull = [UIImage imageNamed:#"allModsBtn.png"];
[myButton setBackgroundImage:buttonImageFull forState:UIControlStateNormal];
[self.view addSubview:myButton];
// add targets and actions
[myButton addTarget:self action:#selector(getButtons:)
forControlEvents:UIControlEventTouchUpInside];
myButton.tag = 0;
}
- (void)someOtherMethod {
myButton.enabled = YES;
OR
//In this case you dont need to define uibutton to globaly
UIButton *button = (UIButton*)[[self view] viewWithTag:121];
[button setEnabled:YES];
}

Answer 2

You have to make that button an ivar of your view controller.
#implementation {
UIButton *myButton;
}
- (void)viewDidLoad {
myButton = [UIButton buttonWithType:UIButtonTypeCustom];
myButton.frame = CGRectMake(40, 80, 107.f, 53.5f); //set frame for button
UIImage *buttonImageFull = [UIImage imageNamed:#"allModsBtn.png"];
[myButton setBackgroundImage:buttonImageFull forState:UIControlStateNormal];
[self.view addSubview:myButton];
// add targets and actions
[myButton addTarget:self action:#selector(getButtons:)
forControlEvents:UIControlEventTouchUpInside];
myButton.tag = 0;
}
- (void)someOtherMethod {
myButton.enabled = YES;
}

Answer 3

Something like this:
UIButton *myButton = [self.view viewWithTag:BUTTON_TAG]; // in your case is 0
[myButton setEnabled:YES];

Answer 4

Two ways to do it:
1) you can make it an ivar and then
AllList.enabled = YES;
or
[AllList setEnabled:YES];
2)
set a unique tag to the button
UIButton *AllList = [UIButton buttonWithType:UIButtonTypeCustom];
AllList.frame = CGRectMake(40, 80, 107.f, 53.5f); //set frame for button
AllList.tag = kUNIQUE_TAG;
in the method you want to mess with the button's enabled property
UIButton *theButton = (UIButton *)[self viewWithTag:kUNIQUE_TAG];
[theButton setEnabled:YES];