iOS UIAppearance使用详解-01没有图片效果

it2022-05-05  106

具体代码没有敲

参考网址:http://blog.sina.com.cn/s/blog_9693f61a0101f1rs.html

 

 iOS5及其以后提供了一个比较强大的工具UIAppearance,我们通过UIAppearance设置一些UI的全局效果,这样就可以很方便的实现UI的自定义效果又能最简单的实现统一界面风格,它提供如下两个方法。

+ (id)appearance

这个方法是统一全部改,比如你设置UINavBar的tintColor,你可以这样写:[[UINavigationBar appearance] setTintColor:myColor];

 

+ (id)appearanceWhenContainedIn:(Class <>)ContainerClass,...

这个方法可设置某个类的改变:例如:设置UIBarButtonItem 在UINavigationBar、UIPopoverController、UITabbar中的效果。就可以这样写

[[UIBarButtonItem appearanceWhenContainedIn:[UINavigationBar class], [UIPopoverController class],[UITabbar class] nil] setTintColor:myPopoverNavBarColor];

 

请注意*使用appearance设置UI效果最好采用全局的设置,在所有界面初始化前开始设置,否则可能失效。

 

 具体UI外观修改如下:

 

1.修改导航栏背景

代码如下:

UINavigationBar * appearance = [UINavigationBar appearance]; UIImage *navBackgroundImg =[UIImage imageNamed:@"navBg.png”]; [appearance setBackgroundImage:navBackgroundImg forBarMetrics:UIBarMetricsDefault];

 

2.标签栏(UITabbar)

代码如下:

UITabBar *appearance = [UITabBar appearance]; //设置背景图片 [appearance setBackgroundImage:[UIImage imageNamed:@"tabbar_bg.png"]]; //门置选择item的背景图片 UIImage * selectionIndicatorImage =[[UIImage imageNamed:@"tabbar_slider"]resizableImageWithCapInsets:UIEdgeInsetsMake(4, 0, 0, 0)] ; [appearance setSelectionIndicatorImage:selectionIndicatorImage];

 

3.分段控件(UISegmentControl)

代码如下:

UISegmentedControl *appearance = [UISegmentedControl appearance]; //Segmenteg正常背景 [appearance setBackgroundImage:[UIImage imageNamed:@"Segmente.png"] forState:UIControlStateNormal barMetrics:UIBarMetricsDefault]; //Segmente选中背景 [appearance setBackgroundImage:[UIImage imageNamed:@"Segmente_a.png"] forState:UIControlStateSelected barMetrics:UIBarMetricsDefault]; //Segmente左右都未选中时的分割线 //BarMetrics表示navigation bar的状态,UIBarMetricsDefault 表示portrait状态(44pixel height),UIBarMetricsLandscapePhone 表示landscape状态(32pixel height) [appearance setDividerImage:[UIImage imageNamed:@"Segmente_line.png"] forLeftSegmentState:UIControlStateNormal rightSegmentState:UIControlStateNormal barMetrics:UIBarMetricsDefault]; [appearance setDividerImage:[UIImage imageNamed:@"Segmente_line.png"] forLeftSegmentState:UIControlStateSelected rightSegmentState:UIControlStateNormal barMetrics:UIBarMetricsDefault]; [appearance setDividerImage:[UIImage imageNamed:@"Segmente_line.png"] forLeftSegmentState:UIControlStateNormal rightSegmentState:UIControlStateSelected barMetrics:UIBarMetricsDefault]; //字体 NSDictionary *textAttributes1 = @{UITextAttributeFont: [UIFont systemFontOfSize:18], UITextAttributeTextColor: [UIColor blueColor], UITextAttributeTextShadowColor: [UIColor whiteColor], UITextAttributeTextShadowOffset: [NSValue valueWithCGSize:CGSizeMake(1, 1)]}; [appearance setTitleTextAttributes:textAttributes1 forState:1]; NSDictionary *textAttributes2 = @{UITextAttributeFont: [UIFont systemFontOfSize:18], UITextAttributeTextColor: [UIColor whiteColor], UITextAttributeTextShadowColor: [UIColor blackColor], UITextAttributeTextShadowOffset: [NSValue valueWithCGSize:CGSizeMake(1, 1)]}; [appearance setTitleTextAttributes:textAttributes2 forState:0];

 

4.UIBarbutton

注意:UIBarbutton有leftBarButton,rightBarButton和backBarButton,其中backBarButton由于带有箭头,需要单独设置。

barButton背景设置是ios6.0及以后的,而backbutton是ios5.0及以后的,这里要注意!

代码如下:

//修改导航条上的UIBarButtonItem UIBarButtonItem *appearance = [UIBarButtonItem appearanceWhenContainedIn:[UINavigationBar class], nil]; //设置导航栏的字体包括backBarButton和leftBarButton,rightBarButton的字体 NSDictionary *textAttributes = @{UITextAttributeFont: [UIFont systemFontOfSize:18], UITextAttributeTextColor: [UIColor blueColor], UITextAttributeTextShadowColor: [UIColor whiteColor], UITextAttributeTextShadowOffset: [NSValue valueWithCGSize:CGSizeMake(1, 1)]}; [appearance setTitleTextAttributes:textAttributes forState:1];//forState为0时为下正常状态,为1时为点击状态。 //修改leftBarButton,rightBarButton背景效果 [appearance setBackgroundImage:[UIImage imageNamed:@"navBarButton.png"] forState:UIControlStateNormal style:UIBarButtonItemStyleBordered barMetrics:UIBarMetricsDefault]; [appearance setBackgroundImage:[UIImage imageNamed:@"navBarButton_a.png"] forState:UIControlStateHighlighted style:UIBarButtonItemStyleBordered barMetrics:UIBarMetricsDefault]; //backBarButton需要单独设置背景效果。只能在ios6.0以后才能用 [appearance setBackButtonBackgroundImage:[UIImage imageNamed:@"nav_bg.png"] forState:0 barMetrics:UIBarMetricsDefault]; [appearance setBackButtonBackgroundImage:[UIImage imageNamed:@"work.png"] forState:1 barMetrics:UIBarMetricsDefault]; [appearance setBackButtonTitlePositionAdjustment:UIOffsetMake(2, -1) forBarMetrics:UIBarMetricsDefault];

 

5.工具栏(UIToolbar)

UIToolbar *appearance = [UIToolbar appearance]; //样式和背景二选一即可,看需求了 //样式(黑色半透明,不透明等)设置 [appearance setBarStyle:UIBarStyleBlackTranslucent]; //背景设置 [appearance setBackgroundImage:[UIImage imageNamed:@"toolbarBg.png"] forToolbarPosition:UIToolbarPositionAny barMetrics:UIBarMetricsDefault];

 

 

 

 

 

转载于:https://www.cnblogs.com/yipingios/p/5531205.html

相关资源:各显卡算力对照表!

最新回复(0)