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UIButton setTitle:forState:
Posted on: September 22, 2010 at 12:00 AM
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setTitle:forState: is the method of UIButton Class, which is used to set the title of the UIButton for different states. These states could be any from the given list?

UIButton setTitle:forState:

setTitle:forState: is the method of UIButton Class, which is used to set the title of the UIButton for different states. These states could be any from the given list…
UIControlStateNormal = 0,
UIControlStateHighlighted = 1 << 0, // used when UIControl isHighlighted is set
UIControlStateDisabled = 1 << 1,
UIControlStateSelected = 1 << 2, // flag usable by app (see below)
UIControlStateApplication = 0x00FF0000, // additional flags available for application use
UIControlStateReserved = 0xFF000000

By default the state is normal.
Syntax of setTitle:forState:
- (void)setTitle:(NSString *)title forState:(UIControlState)state

The "setTitle:forState:" methods takes two parameter "Title" and "State".

Title: is a text that will be displayed on the UIButton for the given state, where as the "State" is the current form of the control. For example a button could be in any form selected or normal. The UIButton will always display the title for assigned state.

See the example below…

- (void)myButton
{
UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[button addTarget:self action:@selector(ButtonPressed:) forControlEvents:UIControlEventTouchDown];

[button setTitle:@"My Button" forState:UIControlStateNormal];

button.frame = CGRectMake(80.0, 210.0, 160.0, 40.0);
[self.view addSubview:button];
}

-(void)ButtonPressed:(id)sender
{
// here you can access the object which triggered the method
// for example you can check the tag value

NSLog(@"hello!!");
}

In the above example, the UIButton title is set for the state normal …so it'll show the title once the button get loaded.

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Posted on: September 22, 2010

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