036在工具条中自定义按钮（1）

1 #import <UIKit/UIKit.h>
2 
3 @interface ViewController : UIViewController
4 @end

 1 #import "ViewController.h"
 2 
 3 @interface ViewController ()
 4 - (UIBarButtonItem *)barButtonItemWithStyle:(UIBarButtonItemStyle)style;
 5 - (void)buttonDidPush:(id)sender;
 6 @end
 7 
 8 @implementation ViewController
 9 
10 - (void)viewDidLoad {
11     [super viewDidLoad];
12     
13     self.title = @"UIBarButtonItem";
14     UIImage *imgIcon = [UIImage imageNamed:@"Smile.png"];
15     UIBarButtonItem *barBtnItemCustom = [[UIBarButtonItem alloc] initWithImage:imgIcon
16                                                                          style:UIBarButtonItemStylePlain
17                                                                         target:self
18                                                                         action:@selector(buttonDidPush:)];
19     [self setToolbarItems:@[
20                             [self barButtonItemWithStyle:UIBarButtonItemStylePlain],
21                             [self barButtonItemWithStyle:UIBarButtonItemStyleDone],
22                             barBtnItemCustom
23                             ] animated:YES];
24 }
25 
26 - (void)didReceiveMemoryWarning {
27     [super didReceiveMemoryWarning];
28     // Dispose of any resources that can be recreated.
29 }
30 
31 - (void)viewWillAppear:(BOOL)animated {
32     [self.navigationController setToolbarHidden:NO animated:NO];
33 }
34 
35 #pragma mark - Private Methods
36 - (UIBarButtonItem *)barButtonItemWithStyle:(UIBarButtonItemStyle)style {
37     NSString *title;
38     switch (style) {
39         case UIBarButtonItemStylePlain:
40             title = @"Plain正常";
41             break;
42         case UIBarButtonItemStyleDone:
43         default:
44             title = @"Done加粗";
45             break;
46     }
47     UIBarButtonItem *barBtnItem = [[UIBarButtonItem alloc] initWithTitle:title
48                                                                    style:style
49                                                                   target:nil
50                                                                   action:nil];
51     return barBtnItem;
52 }
53 
54 - (void)buttonDidPush:(id)sender {
55     if ([sender isKindOfClass:[UIBarButtonItem class]]) {
56         UIBarButtonItem *item = sender;
57         switch (item.style) {
58             case UIBarButtonItemStylePlain:
59                 item.style = UIBarButtonItemStyleDone;
60                 break;
61             case UIBarButtonItemStyleDone:
62             default:
63                 item.style = UIBarButtonItemStylePlain;
64                 break;
65         }
66         NSLog(@"item.style=%@", item.style == UIBarButtonItemStylePlain ? @"Plain" : @"Done");
67     } 
68 }
69 
70 @end

1 #import <UIKit/UIKit.h>
2 
3 @interface AppDelegate : UIResponder <UIApplicationDelegate>
4 @property (strong, nonatomic) UIWindow *window;
5 @property (strong, nonatomic) UINavigationController *navigationController;
6 
7 @end

 1 #import "AppDelegate.h"
 2 #import "ViewController.h"
 3 
 4 @interface AppDelegate ()
 5 @end
 6 
 7 @implementation AppDelegate
 8 
 9 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
10     _window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
11     ViewController *viewController = [[ViewController alloc] init];
12     _navigationController = [[UINavigationController alloc] initWithRootViewController:viewController];
13     _window.rootViewController = _navigationController;
14     [_window addSubview:_navigationController.view];
15     [_window makeKeyAndVisible];
16     return YES;
17 }
18 
19 - (void)applicationWillResignActive:(UIApplication *)application {
20 }
21 
22 - (void)applicationDidEnterBackground:(UIApplication *)application {
23 }
24 
25 - (void)applicationWillEnterForeground:(UIApplication *)application {
26 }
27 
28 - (void)applicationDidBecomeActive:(UIApplication *)application {
29 }
30 
31 - (void)applicationWillTerminate:(UIApplication *)application {
32 }
33 
34 @end