How do you use setTitleTextAttributes:forState:
in UIBarItem
in iOS
?
How do you set the NSDictionary
? Can't make it work and documentation isn't very clear about that.
From the documentation:
setTitleTextAttributes:forState:
Sets the title’s text attributes for a given control state:
- (void)setTitleTextAttributes:(NSDictionary *)attributes
forState:(UIControlState)state
Parameters:
attributes: A dictionary containing key-value pairs for text attributes. You can specify the font, text color, text shadow color, and text shadow offset using the keys listed in NSString UIKit Additions Reference.
state: The control state for which you want to set the text attributes for the title.
Example code:
[[UIBarItem appearance] setTitleTextAttributes:
[NSDictionary dictionaryWithObjectsAndKeys:
[UIColor colorWithRed:220.0/255.0 green:104.0/255.0 blue:1.0/255.0 alpha:1.0], UITextAttributeTextColor,
[UIColor colorWithRed:1.0 green:1.0 blue:1.0 alpha:1.0], UITextAttributeTextShadowColor,
[NSValue valueWithUIOffset:UIOffsetMake(0, 1)], UITextAttributeTextShadowOffset,
[UIFont fontWithName:@"AmericanTypewriter" size:0.0], UITextAttributeFont,
nil]
forState:UIControlStateNormal];
Answer for iOS 8.0 and Swift.
Objectice C code:
NSShadow *shadow = [NSShadow new];
[shadow setShadowColor:[UIColor colorWithRed:1.0 green:1.0 blue:1.0 alpha:1.0]];
[shadow setShadowOffset:CGSizeMake(0, 1)];
NSDictionary *attributes = @{
NSForegroundColorAttributeName: [UIColor colorWithRed:220.0/255.0 green:104.0/255.0 blue:1.0/255.0 alpha:1.0],
NSShadowAttributeName: shadow,
NSFontAttributeName: [UIFont fontWithName:@"AmericanTypewriter" size:16.0]
};
[self.navigationItem.rightBarButtonItem setTitleTextAttributes:attributes forState: UIControlStateNormal];
// Or you can use.
[[UIBarItem appearance] setTitleTextAttributes:attributes forState: UIControlStateNormal];
Swift 4.0:
// Bar title text color
let shadow = NSShadow()
shadow.shadowColor = UIColor(red: 1.0, green: 1.0, blue: 1.0, alpha: 1.0)
shadow.shadowOffset = CGSize(width: 0, height: 1)
let color : UIColor = UIColor(red: 220.0/255.0, green: 104.0/255.0, blue: 1.0/255.0, alpha: 1.0)
let titleFont : UIFont = UIFont(name: "AmericanTypewriter", size: 16.0)!
let attributes = [
NSAttributedStringKey.foregroundColor : color,
NSAttributedStringKey.shadow : shadow,
NSAttributedStringKey.font : titleFont
]
self.navigationItem.rightBarButtonItem?.setTitleTextAttributes(attributes, for: UIControlState.normal)
// Or you can use
UIBarItem.appearance().setTitleTextAttributes(attributes, for: UIControlState.normal)
Here's phix23's code, just with an updated, and I think cleaner, syntax:
[[UIBarItem appearance] setTitleTextAttributes:@{
UITextAttributeTextColor: [UIColor colorWithRed:220.0/255.0 green:104.0/255.0 blue:1.0/255.0 alpha:1.0],
UITextAttributeTextShadowColor: [UIColor colorWithRed:1.0 green:1.0 blue:1.0 alpha:1.0],
UITextAttributeTextShadowOffset: [NSValue valueWithUIOffset:UIOffsetMake(0, 1)],
UITextAttributeFont: [UIFont fontWithName:@"AmericanTypewriter" size:0.0]}
forState: UIControlStateNormal];
[self.tabBarItem setTitleTextAttributes:[NSDictionary dictionaryWithObjects:[NSArray arrayWithObjects:[UIColor whiteColor], nil] forKeys:[NSArray arrayWithObjects:UITextAttributeTextColor, nil]] forState:UIControlStateNormal];
来源:https://stackoverflow.com/questions/7810563/how-do-you-use-settitletextattributesforstate-in-uibaritem