电影项目 (一)

 1 #import "BaseNavigationController.h"
 2 
 3 @interface BaseNavigationController ()
 4 
 5 @end
 6 
 7 @implementation BaseNavigationController
 8 
 9 - (void)viewDidLoad {
10     [super viewDidLoad];
11 
12     //设置导航栏背景图片
13     [self.navigationBar setBackgroundImage:[UIImage imageNamed:@"nav_bg_all-64"]
14                                forBarMetrics:UIBarMetricsDefault];
15     
16     //设置是不起效果的
17 //    self.navigationBar.tintColor = [UIColor whiteColor];
18 //    self.navigationBar.barTintColor = [UIColor whiteColor];
19 //
20     
21     //设置导航栏的样式,黑色,则标题是白色的
22     self.navigationBar.barStyle = UIBarStyleBlack;
23     
24 
25 }
26 
27 
28 //设置状态栏的样式   状态栏的字是白色的
29 - (UIStatusBarStyle)preferredStatusBarStyle
30 {
31     return UIStatusBarStyleLightContent;
32     
33 }

 1 #import "WXTabBarButton.h"
 2 
 3 @interface WXTabBarButton ()
 4 
 5 @property (nonatomic,strong)UIImageView *imageView;
 6 @property (nonatomic,strong)UILabel *titleLabel;
 7 
 8 @end
 9 
10 
11 @implementation WXTabBarButton
12 
13 - (instancetype)initWithFrame:(CGRect)frame
14                 WithImageName:(NSString *)imageName
15                     WithTitle:(NSString *)title{
16 
17     self = [super initWithFrame:frame];
18     if (self) {
19         
20         //1.创建标签栏图片视图
21         _imageView = [[UIImageView alloc]initWithFrame:CGRectMake((frame.size.width - 20) / 2, 7, 20, 20)];
22         _imageView.image = [UIImage imageNamed:imageName];
23         _imageView.contentMode = UIViewContentModeScaleAspectFit;
24         _imageView.userInteractionEnabled = YES;
25         
26         
27         [self addSubview:_imageView];
28         
29         
30         //2.创建标签栏标题
31         _titleLabel = [[UILabel alloc]
32                        initWithFrame:CGRectMake(0, 7 + 20 + 5, frame.size.width, 17)];
33         _titleLabel.textAlignment = NSTextAlignmentCenter;
34         _titleLabel.font = [UIFont boldSystemFontOfSize:14];
35         _titleLabel.textColor = [UIColor whiteColor];
36         
37         _titleLabel.text = title;
38         
39         [self addSubview:_titleLabel];
40     }
41 
42     return self;
43     
44 }

  1 #import "MainTabBarController.h"
  2 
  3 //导入文件
  4 #import "Common.h"
  5 #import "WXTabBarButton.h"
  6 
  7 
  8 @interface MainTabBarController ()
  9 
 10 @property (nonatomic,strong)UIImageView *selectedView;
 11 
 12 @end
 13 
 14 @implementation MainTabBarController
 15 
 16 - (void)viewDidLoad {
 17     [super viewDidLoad];
 18 
 19     
 20 
 21     //设置导航栏
 22     [self _customNavigationBar];
 23     
 24     //移除按钮
 25     [self _removeTabBarButton];
 26 
 27     //自定义标签栏
 28     [self _customTabBar];
 29 
 30 }
 31 
 32 //视图将要出现的时候调用
 33 - (void)viewWillAppear:(BOOL)animated {
 34     [super viewWillAppear:animated];
 35     
 36     //视图将要出现的时候，移除tabbar上的按钮
 37     
 38     //使用storyboard搭建三级控制器，在viewDidLoad方法走完之后，故事板没有全部加载完成
 39     //等故事板加载完成，就会再次添加tabbarbutton
 40     [self _removeTabBarButton];
 41 }
 42 
 43 
 44 - (void)didReceiveMemoryWarning {
 45     [super didReceiveMemoryWarning];
 46     // Dispose of any resources that can be recreated.
 47 }
 48 
 49 
 50 
 51 #pragma mark - 标签栏的设置
 52 
 53 //自定义标签栏
 54 - (void)_customTabBar{
 55 
 56     //1.设置标签栏的背景图片
 57 
 58     self.tabBar.backgroundImage = [UIImage imageNamed:@"tab_bg_all"];
 59     
 60     // 2.选中的视图
 61     _selectedView = [[UIImageView alloc]
 62                      initWithImage:[UIImage imageNamed:@"selectTabbar_bg_all1"]];
 63     _selectedView.frame = CGRectMake(0, 0, 55, 47);
 64     [self.tabBar addSubview:_selectedView];
 65     
 66     //3.设置TabBar按钮
 67     
 68     //先将数据存起来至数组
 69     NSArray *titles = @[ @"首页", @"新闻", @"Top", @"影院", @"更多" ];
 70     
 71     NSArray *imageNames = @[
 72                             @"movie_home",
 73                             @"msg_new",
 74                             @"start_top250",
 75                             @"icon_cinema",
 76                             @"more_setting"
 77                             ];
 78     
 79     float buttonWidth = kScreenWidth/titles.count;
 80     
 81     for (NSInteger i = 0; i < titles.count; i++) {
 82         
 83         //取得标题和图片
 84         NSString *title = titles[i];
 85         NSString *imageName = imageNames[i];
 86         
 87         //设置每个按钮的fram
 88         CGRect fram = CGRectMake(buttonWidth * i, 0, buttonWidth, kTabBarHeight);
 89         
 90         //使用自定义的控件创建按钮
 91         WXTabBarButton *button = [[WXTabBarButton alloc]initWithFrame:fram WithImageName:imageName WithTitle:title];
 92         
 93         button.tag = 1000 + i;
 94         
 95         [button addTarget:self action:@selector(buttonAction:) forControlEvents:UIControlEventTouchUpInside];
 96         [self.tabBar addSubview:button];
 97         
 98         if (i == 0) {
 99             
100             //选中的视图和第一个按钮对齐
101             _selectedView.center = button.center;
102             
103         }
104         
105     }
106 }
107 
108 
109 //移除系统标签栏上的按钮
110 - (void)_removeTabBarButton {
111     
112     //取到所有的子视图
113     for (UIView *view in self.tabBar.subviews) {
114         //从字符串生成一个类名
115         Class class = NSClassFromString(@"UITabBarButton");
116         
117         //找出UITabBarButton，移除掉
118         if ([view isKindOfClass:class]) {
119             [view removeFromSuperview];
120         }
121     }
122     
123     // NSLog(@"%@", self.tabBar.subviews);
124 }
125 
126 
127 #pragma mark - Button Action
128 - (void)buttonAction:(UIButton *)sender {
129     
130     //1.切换控制器
131     self.selectedIndex = sender.tag - 1000;
132     
133     
134     
135     //3.设置动画
136     [UIView beginAnimations:nil context:nil];
137     [UIView setAnimationDuration:.35];
138     
139     //2.移动选中的视图
140     _selectedView.center = sender.center;
141     
142     [UIView commitAnimations];
143 
144 }
145 
146 
147 
148 #pragma mark - 设置导航栏
149 - (void)_customNavigationBar {
150     
151     /*
152      for (UINavigationController *naviCtrl in self.viewControllers) {
153      [naviCtrl.navigationBar setBackgroundImage:[UIImage imageNamed:@"nav_bg_all-64"] forBarMetrics:UIBarMetricsDefault];
154      }
155      */
156     
157     //Appearance 作用：
158     //实现UIAppearance这个协议方法的系统控件，可以使用它来修改它的默认的样式
159     //只有这行代码执行之后，后面创建控件才会受到影响
160     [[UINavigationBar appearance] setBackgroundImage:[UIImage imageNamed:@"nav_bg_all-64"] forBarMetrics:UIBarMetricsDefault];
161     
162 }