iOSm界面跳轉和參數傳遞之presentViewController與dismissViewControllerAnimated

假設

界面1為 ViewController01 : UIViewController 界面2為 ViewController02 : UIViewController 

其中界面1為項目的rootViewController.

AppDelegate.h代碼

C代碼  

1. #import <UIKit/UIKit.h>  
2. @interface AppDelegate : UIResponder <UIApplicationDelegate>  
3. @property (strong, nonatomic) UIWindow *window;  
4. @property (strong, nonatomic) NSString* localImagePath;  
5. @end  

AppDelegate.m的部分代碼

1. - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {  
2.     self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];  
3.     // Override point for customization after application launch.  
4.     ViewController01* mViewController01 = [[ViewController01 alloc]init];  
5.     self.window.rootViewController = mViewController01;  
6.     self.window.backgroundColor = [UIColor whiteColor];  
7.     [self.window makeKeyAndVisible];  
8.     return YES;  
9. }  

ViewController01.h代碼

2. @interface ViewController01 : UIViewController  
3. @property (strong,nonatomic) NSMutableDictionary* parameter;  

ViewController01.m代碼

1. #import "ViewController01.h"  
2. #import "MyViewTool.h"  
3. #import "ViewController02.h"  
4. @interface ViewController01 ()  
6. @implementation ViewController01  
7. - (void)viewDidLoad {  
8.     NSLog(@"viewDidLoad():視圖1");  
9.     [super viewDidLoad];  
10.     // Do any additional setup after loading the view.  
11.     [self initViews];  
12.     [self initParameter];  
14. -(void)viewDidAppear:(BOOL)animated{  
15.     NSLog(@"viewDidAppear():視圖1");  
16.     [super viewDidAppear:animated];  
17.     //接收到的參數  
18.     NSLog(@"viewDidAppear():視圖1,收到的參數:from=%@",[self.parameter objectForKey:@"from"]);  
20. - (void)initViews{  
21.     CGSize size = [MyViewTool loadScreenSize];  
22.     CGFloat width = size.width;  
23.     UILabel* label = [MyViewTool createLabel:CGRectMake(10, 40, width-20, 100) withText:@"視圖1" withBgcolor:[UIColor yellowColor]];  
24.     UIButton* btn = [MyViewTool createButton:CGRectMake(label.frame.origin.x, label.frame.origin.y+label.frame.size.height+20, 200, 50) withDelegate:self withAction:@selector(buttonClick:) withTitle:@"按鈕1:點選打開視圖2"  
25.                                  withBgColor:[UIColor lightGrayColor]];  
26.     btn.center = CGPointMake(width/2, btn.center.y);  
27.     [self.view addSubview:label];  
28.     [self.view addSubview:btn];  
30. #pragma mark 初始化要傳遞的參數  
31. - (void)initParameter{  
32.     self.parameter = [[NSMutableDictionary alloc]init];  
34. -(void)buttonClick : (UIButton*) sender {  
35.     NSLog(@"buttonClick:%@",sender.titleLabel.text);  
36.     //設定傳遞參數的資料  
37.     [self.parameter setObject:@"我是視圖1設定的參數" forKey:@"from"];  
38.     //打開 ViewController02  
39.     ViewController02* mViewController02 = [[ViewController02 alloc]init];  
40.     mViewController02.parameter=self.parameter;  
41.     [self presentViewController:mViewController02 animated:YES completion:^{  
42.         NSLog(@"presentViewController成功");  
43.     }];  
45. - (void)didReceiveMemoryWarning {  
46.     [super didReceiveMemoryWarning];  
47.     // Dispose of any resources that can be recreated.  

ViewController02.h代碼

2. @interface ViewController02 : UIViewController  

ViewController02.m代碼

3. @interface ViewController02 ()  
5. @implementation ViewController02  
7.     NSLog(@"viewDidLoad():視圖2");  
13.     NSLog(@"viewDidAppear():視圖2");  
16.     NSLog(@"viewDidAppear():視圖2,收到的參數:from=%@",[self.parameter objectForKey:@"from"]);  
21.     UILabel* label = [MyViewTool createLabel:CGRectMake(10, 40, width-20, 100) withText:@"視圖2" withBgcolor:[UIColor yellowColor]];  
22.     UIButton* btn = [MyViewTool createButton:CGRectMake(label.frame.origin.x, label.frame.origin.y+label.frame.size.height+20, 200, 50) withDelegate:self withAction:@selector(buttonClick:) withTitle:@"按鈕2:點選傳回視圖1" withBgColor:[UIColor lightGrayColor]];  
29.     //設定傳回給視圖1的參數  
30.     [self.parameter setObject:@"我是視圖2設定的參數" forKey:@"from"];  
31.     [self dismissViewControllerAnimated:YES completion:^{  
32.         NSLog(@"dismissViewControllerAnimated成功");  

 項目源代碼參見附近中的demo010.zip