我的应用程序中存在问题.我在UITabBar的其中一个标签上设置了徽章值.徽章值正确为红色,徽章值周围的圆圈正确为白色.问题是,文本的颜色是灰色的(160,160,160).它与普通状态tabbaritem文本的颜色相同,但我在应用程序代码中没有设置此颜色,我不知道这种颜色来自何处.
几个星期以来,我在整个网络中搜索了这个问题,但我找不到任何解决方案.我到处找到的唯一答案是,无法更改徽章值文本的颜色.但如果不可能,为什么我的应用程序会改变它?
我希望,有人可以帮我解决这个问题……
> http://www.luventas-webdesign.de/stackoverflow/screenshot_badgevalue.png
>就像颜色在我的应用程序中
>
> http://www.luventas-webdesign.de/stackoverflow/screenshot_like_it_should.png
>喜欢的颜色通常应该是……
>
编辑02.11.2012 – 代码
创建TabBarController:
#import "ExtendedTabBarController.h"
#import "configuration.h"
@implementation ExtendedTabBarController
- (void)viewDidLoad {
[super viewDidLoad];
[[UITabBarItem appearance] setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys: [UIColor colorWithRed:207.0/255.0 green:70.0/255.0 blue:61.0/255.0 alpha:1], UITextAttributeTextColor, [UIFont fontWithName:@"KievitPro-Regular" size:10.0], UITextAttributeFont, nil] forState:UIControlStateSelected];
[[UITabBarItem appearance] setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys: [UIColor colorWithRed:255.0/255.0 green:255.0/255.0 blue:255.0/255.0 alpha:1], UITextAttributeTextColor, [UIFont fontWithName:@"KievitPro-Regular" size:10.0], UITextAttributeFont, nil] forState:UIControlStateNormal];
[self.tabBar sizeToFit];
UIView *tabbarBackgroundColorView = [[UIView alloc] initWithFrame:CGRectMake(0.0, 0, self.view.bounds.size.width, 49)];
[tabbarBackgroundColorView setBackgroundColor:[UIColor colorWithRed:233.0/255.0 green:233.0/255.0 blue:233.0/255.0 alpha:1]];
[self.tabBar insertSubview:tabbarBackgroundColorView atIndex:0];
}
- (void)viewDidUnload {
[super viewDidUnload];
}
- (void)viewWillAppear:(BOOL)animated {
[super viewWillAppear:animated];
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
return UIInterfaceOrientationIsPortrait(interfaceOrientation); // only portrait orientation
}
/**
* orientation for iOS6
**/
-(NSUInteger)supportedInterfaceOrientations{
return UIInterfaceOrientationMaskPortrait;
}
@end
在AppDelegate中调用:
ExtendedTabBarController *tabBarController = [[ExtendedTabBarController alloc] init];
[self setTabBarController:tabBarController];
[[UITabBar appearance] setBackgroundImage:[UIImage imageNamed:@"menu_bg"]];
// code for initialize View- and NavigationControllers...
self.tabBarController.viewControllers = @[highlightsNavigationController, categoryNavigationController, searchNavigationController, favoritesNavigationController, imprintNavigationController];
self.window.rootViewController = self.tabBarController;
[[UITabBar appearance] setSelectionIndicatorImage:[[UIImage alloc] init]];
设置徽章值:
int viewCount = 0;
NSUserDefaults * defs = [NSUserDefaults standardUserDefaults];
NSDictionary * dict = [defs dictionaryRepresentation];
for (id key in dict) {
if([key rangeOfString:@"_highlighted"].location != NSNotFound && [[[dict objectForKey:key] objectAtIndex:0] isEqualToString:@"YES"]) {
viewCount++;
}
}
UITabBarItem *tbi = (UITabBarItem *)[self.tabBarController.tabBar.items objectAtIndex:3];
if(viewCount <= 0) {
tbi.badgeValue = nil;
} else {
tbi.badgeValue = nil;
tbi.badgeValue = [NSString stringWithFormat:@"%d", viewCount];
}
覆盖UILabel的代码:
// -- file: UILabel+VerticalAlign.h
#pragma mark VerticalAlign
@interface UILabel (VerticalAlign)
- (void)alignTop;
- (void)alignBottom;
- (void)awakeFromNib;
-(id)initWithFrame:(CGRect)frame;
@end
#import "UILabel+VerticalAlign.h"
// -- file: UILabel+VerticalAlign.m
@implementation UILabel (VerticalAlign)
- (void)alignTop {
CGSize fontSize = [self.text sizeWithFont:self.font];
double finalHeight = fontSize.height * self.numberOfLines;
double finalWidth = self.frame.size.width; //expected width of label
CGSize theStringSize = [self.text sizeWithFont:self.font constrainedToSize:CGSizeMake(finalWidth, finalHeight) lineBreakMode:self.lineBreakMode];
int newLinesToPad = (finalHeight - theStringSize.height) / fontSize.height;
for(int i=0; i<newLinesToPad; i++)
self.text = [self.text stringByAppendingString:@"\n "];
}
- (void)alignBottom {
CGSize fontSize = [self.text sizeWithFont:self.font];
double finalHeight = fontSize.height * self.numberOfLines;
double finalWidth = self.frame.size.width; //expected width of label
CGSize theStringSize = [self.text sizeWithFont:self.font constrainedToSize:CGSizeMake(finalWidth, finalHeight) lineBreakMode:self.lineBreakMode];
int newLinesToPad = (finalHeight - theStringSize.height) / fontSize.height;
for(int i=0; i<newLinesToPad; i++)
self.text = [NSString stringWithFormat:@" \n%@",self.text];
}
- (void)awakeFromNib
{
[super awakeFromNib];
[self setFont:[UIFont fontWithName:@"KievitPro-Regular" size:12.0]];
}
-(id)initWithFrame:(CGRect)frame
{
id result = [super initWithFrame:frame];
if (result) {
[self setFont:[UIFont fontWithName:@"KievitPro-Regular" size:12.0]];
}
return result;
}
@end
最佳答案 我自己找到了解决问题的方法:
我必须从覆盖的UILabel中删除以下行:
- (void)awakeFromNib
{
[super awakeFromNib];
[self setFont:[UIFont fontWithName:@"KievitPro-Regular" size:12.0]];
}
-(id)initWithFrame:(CGRect)frame
{
id result = [super initWithFrame:frame];
if (result) {
[self setFont:[UIFont fontWithName:@"KievitPro-Regular" size:12.0]];
}
return result;
}
也许有人可以解释我,为什么这条线会改变徽章价值的文字颜色,然后才能关闭这个帖子?