iOS开发UI篇—Modal简单介绍

 1 //
 2 //  YYAppDelegate.m
 3 //  01-modal
 4 //
 5 //  Created by apple on 14-6-9.
 6 //  Copyright (c) 2014年 itcase. All rights reserved.
 7 //
 8 
 9 #import "YYAppDelegate.h"
10 #import "YYViewController.h"
11 
12 @implementation YYAppDelegate
13 
14 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
15 {
16     //1.创建window，并设置window的frame
17     self.window=[[UIWindow alloc]initWithFrame:[[UIScreen mainScreen] bounds]];
18     //2.设置window的背景颜色为黑色
19     self.window.backgroundColor=[UIColor blackColor];
20 
21     
22     //创建一个导航控制器作为子控制器
23     YYViewController *one=[[YYViewController alloc]init];
24     self.window.rootViewController=one;
25     
26     //3.设置window为主窗口，并显示
27     [self.window makeKeyAndVisible];
28     return YES;
29 }
30 
31 
32 @end

 1 //
 2 //  YYViewController.m
 3 //  01-modal
 4 //
 5 //  Created by apple on 14-6-9.
 6 //  Copyright (c) 2014年 itcase. All rights reserved.
 7 //
 8 
 9 #import "YYViewController.h"
10 #import "YYtwoViewController.h"
11 
12 @interface YYViewController ()
13 //当点击的时候，跳转到第二个界面
14 - (IBAction)jump2two:(UIButton *)sender;
15 
16 @end
17 
18 @implementation YYViewController
19 
20 - (void)viewDidLoad
21 {
22     [super viewDidLoad];
23     // Do any additional setup after loading the view from its nib.
24 }
25 
26 
27 - (IBAction)jump2two:(UIButton *)sender {
28     //创建一个新的modal并弹出
29     YYtwoViewController *two=[[YYtwoViewController alloc]init];
30     //在two上用导航控制器包装，让弹出的模态窗口有一个导航栏可以放返回按钮
31     UINavigationController *nvc=[[UINavigationController alloc]initWithRootViewController:two
32                                  ];
33     [self presentViewController:nvc animated:YES completion:^{
34         NSLog(@"弹出一个模态窗口");
35     }];
36     
37 }
38 @end

 1 //
 2 //  YYtwoViewController.m
 3 //  01-modal
 4 //
 5 //  Created by apple on 14-6-9.
 6 //  Copyright (c) 2014年 itcase. All rights reserved.
 7 //
 8 
 9 #import "YYtwoViewController.h"
10 
11 @interface YYtwoViewController ()
12 
13 @end
14 
15 @implementation YYtwoViewController
16 
17 - (void)viewDidLoad
18 {
19     [super viewDidLoad];
20 
21     //给导航条添加一个返回按钮
22     self.navigationItem.leftBarButtonItem=[[UIBarButtonItem alloc]initWithTitle:@"返回" style:UIBarButtonItemStylePlain target:self action:@selector(change)];
23 }
24 
25 -(void)change
26 {
27     //编写点击返回按钮的点击事件
28     //点击返回按钮，移除当前模态窗口
29 //    [self.navigationController dismissViewControllerAnimated:YES completion:^{
30 //        NSLog(@"移除模态窗口");
31 //    }];
32     
33 // 如果一个控制器是以模态的形式展现出来的, 可以调用该控制器以及该控制器的子控制器让让控制器消失
34     [self dismissViewControllerAnimated:YES completion:^{
35         NSLog(@"移除");
36     }];
37 }
38 
39 @end

 1 //
 2 //  YYViewController.m
 3 //  02-模态窗口的数据传递
 4 //
 5 //  Created by apple on 14-6-9.
 6 //  Copyright (c) 2014年 itcase. All rights reserved.
 7 //
 8 
 9 #import "YYViewController.h"
10 #import "YYtwoViewController.h"
11 
12 @interface YYViewController ()
13 
14 @end
15 
16 @implementation YYViewController
17 
18 - (void)viewDidLoad
19 {
20     [super viewDidLoad];
21 }
22 
23 - (void)didReceiveMemoryWarning
24 {
25     [super didReceiveMemoryWarning];
26 }
27 
28 
29 /*
30  如果控制器之间的关系比较紧密一般用 UINavigationController
31  如果控制器之间的关系不是很紧密可以用Modal
32  */
33 
34 //通过segue跳转前，会调用这个方法，在这个方法中把数据传递给弹出来的模态窗口
35 -(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
36 {
37     //拿到目标控制器
38     UINavigationController *nav=segue.destinationViewController;
39     YYtwoViewController *two=(YYtwoViewController *)nav.topViewController;
40     //传递数据
41     two.name=@"文顶顶";
42 }
43 @end

 1 //
 2 //  YYtwoViewController.h
 3 //  02-模态窗口的数据传递
 4 //
 5 //  Created by apple on 14-6-9.
 6 //  Copyright (c) 2014年 itcase. All rights reserved.
 7 //
 8 
 9 #import <UIKit/UIKit.h>
10 
11 @interface YYtwoViewController : UIViewController
12 @property(nonatomic,copy)NSString *name;
13 @end

 1 //
 2 //  YYtwoViewController.m
 3 //  02-模态窗口的数据传递
 4 //
 5 //  Created by apple on 14-6-9.
 6 //  Copyright (c) 2014年 itcase. All rights reserved.
 7 //
 8 
 9 #import "YYtwoViewController.h"
10 
11 @interface YYtwoViewController ()
12 @property (weak, nonatomic) IBOutlet UILabel *nametext;
13 
14 @end
15 
16 @implementation YYtwoViewController
17 
18 
19 - (void)viewDidLoad
20 {
21     [super viewDidLoad];
22     self.nametext.text=self.name;
23     
24     //为导航栏添加一个返回按钮
25     self.navigationItem.leftBarButtonItem=[[UIBarButtonItem alloc]initWithTitle:@"返回" style:UIBarButtonItemStylePlain target:self action:@selector(black)];
26 }
27 
28 -(void)black
29 {
30     //移除模态窗口
31     [self dismissViewControllerAnimated:YES completion:^{
32         NSLog(@"成功移除！");
33     }];
34 }
35 @end