【问题标题】:Custom Navigation Bar in ios6 and ios7ios6 和 ios7 中的自定义导航栏
【发布时间】:2014-05-11 18:24:06
【问题描述】:
我有一个问题,我现在找不到解决方案。在我的应用程序中,我的 NavigationBar 中有多个按钮,这些按钮在整个应用程序中都是必需的,而不是在每个视图控制器中创建按钮,我想创建 UINavigationBar 或 UINavigationController 的子类(我不知道是哪一个)。因此,每当用户在视图之间移动时,导航栏总是包含这些按钮。到目前为止,我已经对此进行了很多搜索,但找不到任何有价值的东西。
请建议我这样做,提前谢谢。
【问题讨论】:
标签:
ios
iphone
ipad
uinavigationcontroller
uinavigationbar
【解决方案1】:
你可以继承标准UINavigationBar来实现这个
@interface CustomNavigationBar : UINavigationBar
- (id)initWithFrame:(CGRect)frame;
@end
@implementation CustomNavigationBar
- (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) {
UIButton *btn=[UIButton buttonWithType:UIButtonTypeContactAdd];
[btn addTarget:self action:@selector(<#selector#>) forControlEvents:<#(UIControlEvents)#>]
[self addSubview:btn];
...
...
}
return self;
}
- (void)drawRect:(CGRect)rect {
[[UIColor redColor] setFill];
UIRectFill(rect);
}
@end
要使用 StoryBoard 或 xib,只需将标准类名称更改为 CustomNavigationBar。
或
如果您希望以编程方式进行
在AppDelegate.m
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc]initWithFrame:[[UIScreen mainScreen] bounds]];
UINavigationController *navVC = [[UINavigationController alloc] initWithNavigationBarClass:[CustomNavigationBar class] toolbarClass:nil];
UIStoryboard *mStoryboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
ViewController *VC1 = [mStoryboard instantiateViewControllerWithIdentifier:@"VC"];
[navVC setViewControllers:[NSArray arrayWithObject:VC1] animated:NO];
[self. window setRootViewController:navVC];
[self. window makeKeyAndVisible];
return YES;
}
【解决方案2】:
#import "CustomNavBar.h"
@implementation CustomNavBar
- (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) {
// Initialization code
self.tintColor=[UIColor greenColor];
}
return self;
}
- (void)drawRect:(CGRect)rect {
UIImage *image = [UIImage imageNamed:@"Custom-Nav-Bar-BG.png"];
[image drawInRect:CGRectMake(0, 0, 40, self.frame.size.height)];
UIButton *btn=[UIButton buttonWithType:UIButtonTypeContactAdd];
[btn drawRect:CGRectMake(42, 0, 40, self.frame.size.height )];
UIButton *btn2=[UIButton buttonWithType:UIButtonTypeContactAdd];
[btn2 drawRect:CGRectMake(82, 0, 40, self.frame.size.height )];
}
@end