用storyboard添加一个导航栏，其中首页有一个switch，与setting联动，还有一个button，使用modal连接另一个viewControl，其上也有一个按钮，按下销毁本viewControl，回到前一页。
实现步骤：
1.创建一个SingleView的项目，勾选上storyboard。
2.向storyboard中添加一个NavigationController，两个ViewController，然后在NavigationController中右击指向第一个ViewController，然后设置为rootViewController，并且将箭头指向NavigationController。
3.将两个ViewController的Class分别设置为DXWViewController和DXWViewController1（两个自己创建的类，继承自ViewController）
4.创建setting文件，并将root.plist保存一个键值对，key改成switch
5.修改DXWViewController(主视图)
DXWViewController.h:
#import <UIKit/UIKit.h>
#import "DXWViewController1.h"
@interface DXWViewController : UIViewController<DXWFlipsideViewControllerDelegate>
- (IBAction)change:(id)sender;
@property (retain, nonatomic) IBOutlet UILabel *label;
@property (retain, nonatomic) IBOutlet UISwitch *switchButton; - (IBAction)showInfo:(id)sender; @end
DXWViewController.m:
#import "DXWViewController.h" @interface DXWViewController () @end @implementation DXWViewController -(void)viewWillAppear:(BOOL)animated
{
[self changeData];
} -(void)changeData
{
NSUserDefaults *usr = [NSUserDefaults standardUserDefaults];
NSDictionary *dic = [NSDictionary dictionaryWithObjectsAndKeys:@YES,@"switch", nil]; [usr registerDefaults:dic];
((UILabel *)self.label).text = [usr boolForKey:@"switch"]?@"开":@"关";
self.switchButton.on = [usr boolForKey:@"switch"];
//都要写入一下
[usr synchronize];
} - (void)viewDidLoad
{
[super viewDidLoad];
UIApplication *app = [UIApplication sharedApplication];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(changeData) name:UIApplicationWillEnterForegroundNotification object:app];
} - (void)dealloc {
[self.switchButton release];
[_label release];
[super dealloc];
}
//实现协议的方法
- (void)flipsideViewControllerDidFinish:(DXWViewController1 *)controller
{
[self dismissViewControllerAnimated:YES completion:nil];
}
- (IBAction)change:(id)sender {
UISwitch *switchButton = sender;
NSUserDefaults *user = [NSUserDefaults standardUserDefaults];
[user setBool:switchButton.on forKey:@"switch"];
[user synchronize];
((UILabel *)self.label).text = [user boolForKey:@"switch"]?@"开":@"关";
}
- (IBAction)showInfo:(id)sender {
UIStoryboard *strBoard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];
DXWViewController1 *controller = [strBoard instantiateViewControllerWithIdentifier:@"DXWViewController1"];
controller.delegate = self;
controller.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
[self presentViewController:controller animated:YES completion:nil];
}
@end
上图中showInfo方法是通过代码的方法实现跳转到下一个view,如果是通过storyboard实现连线的方法然后跳过下一个view是这样实现：
@“Add”是连线的ID
//连线的方法
-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if ([segue.identifier isEqualToString:@"Add"]) {
DXWViewController1 *controlller = segue.destinationViewController;
controlller.delegate = self;
}
}
6.修改DXWViewController1(子视图)
DXWViewController.h:
#import <UIKit/UIKit.h>
@class DXWViewController1; @protocol DXWFlipsideViewControllerDelegate
- (void)flipsideViewControllerDidFinish:(DXWViewController1 *)controller;
@end
@interface DXWViewController1 : UIViewController
@property (assign, nonatomic) id <DXWFlipsideViewControllerDelegate> delegate;
- (IBAction)done:(id)sender;
@end
DXWViewController.m:
#import "DXWViewController1.h" @interface DXWViewController1 () @end @implementation DXWViewController1 - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
} - (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
} - (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
} - (IBAction)done:(id)sender {
[self.delegate flipsideViewControllerDidFinish:self];
}
@end