iOS项目实践之时光电影（一）

1. 无限互联熊彪的视频－时光电影项目

1.1 需求文档 － 产品部门产生

1.2 架构设计－mvc,缓存策略，可扩展，广告位预留，更新预留

1.3 业务逻辑分析－哪些人用，做什么，用户习惯收集

      业务逻辑设计－类，接口，类关系

1.4 界面设计 － 美工产生

1.5 用户交互－用户体验师ue

1.6 与服务器交互－http   : 开发容易，数据包大

                           socket  ：数据包小，适合实时交互如微信

      数据交换格式－JSON ：使用方便，都用这个

                              xml : SAX（边load边解析）, DOM(一下load到内存）

1.7 接口定义－这是重点，与服务器的接口定义

1.8 开发规范 － 驼峰命名法

2. 项目架构

2.1 结构图

2.2 搭建项目框架

新建一个singleview，去掉viewcontroller

2.2.1 添加图片，工具类

注意添加图片时选择create group，不然图片读取不到，搞了多久才发现图片没读出来。

2.2.2 新建tab的几个文件

1）建立mainviewcontroller

2）AppDelegate.m中加入

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    // Override point for customization after application launch.
    
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] ;
    self.window.backgroundColor  = [UIColor redColor];
    [self.window makeKeyAndVisible];
 
    
    MainViewController *mainCtrl = [[MainViewController alloc] init];
    [self.window setRootViewController:mainCtrl];
    
    return YES;
}

3)prefix header

build_setting里面设置prefix header，这样就可以把需要的头文件加入了。

4）mainviewcontroller.h

@interface MainViewController : UITabBarController
{
    @private
    //自定义tabbar视图
    UIView *_tabBarView;
    //上次选中的button
    UIButton *_lastButton;
}
@end

mainviewcontroller.m

//
//  MainViewController.m
//  SGMovie
//
//  Created by robin on 16/2/27.
//  Copyright © 2016年 robin. All rights reserved.
//

#import "MainViewController.h"
#import "WXHLGlobalUICommon.h"

#import "HomeViewController.h"
#import "NewsController.h"
#import "MovieRatingViewController.h"
#import "CinemaViewController.h"

@interface MainViewController ()
- (void) _initImageView;    // _ 表示我们自己定义的方法
- (void) _initWithViewController;

@end

@implementation MainViewController

- (id) initWithNibName : (NSString*) nibNameOrNil bundle: (NSBundle*)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    
    if (self ) {
        // 隐藏控制器的tabbar

        self.tabBar.hidden = YES;
    }
    
    return self;
}

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    [self _initImageView];
    [self _initWithViewController];
    
    //UIView *transitionView = [[self.view subviews] objectAtIndex:0];
    //NSLog(@"transitionview:%@", transitionView);
    //transitionview:<UITransitionView: 0x7fa9e961f6b0; frame = (0 0; 320 568); clipsToBounds = YES; autoresize = W+H; layer = <CALayer: 0x7fa9e961faf0>>
    
    for (UIView *subView in self.view.subviews)
    {
        if ([subView isKindOfClass:NSClassFromString(@"UITransitionView")]) {
            // 重新调整UITabbarViewController根视图的大小
            subView.frame = CGRectMake(subView.frame.origin.x, subView.frame.origin.y, subView.frame.size.width, IPHONE_HEIGHT);
        }
    }
}

- (void) _initWithViewController
{
    HomeViewController *homeCtrl = [[HomeViewController alloc] init];
    NewsController *newsCtrl = [[NewsController alloc] init];
    MovieRatingViewController *ratingCtrl = [[MovieRatingViewController alloc] init];
    CinemaViewController *cinemaCtrl = [[CinemaViewController alloc] init];
    
    UINavigationController *homeNav = [[UINavigationController alloc] initWithRootViewController:homeCtrl];
    UINavigationController *newsNav = [[UINavigationController alloc] initWithRootViewController:newsCtrl];
    UINavigationController *ratingNav = [[UINavigationController alloc] initWithRootViewController:ratingCtrl];
    UINavigationController *cinemaNav = [[UINavigationController alloc] initWithRootViewController:cinemaCtrl];

    NSArray *ctrls = [NSArray arrayWithObjects:homeNav, newsNav, ratingNav, cinemaNav,nil];
    self.viewControllers = ctrls;
}

- (void) _initImageView
{
    
    // 获取整个物理屏幕大小
    CGRect frame = WXHLApplicationBounds();
    
    // 创建tabbar
    _tabBarView = [[UIView alloc] initWithFrame:CGRectMake(frame.origin.x, frame.size.height-TABBAR_HEIGHT, frame.size.width, TABBAR_HEIGHT)];
    _tabBarView.backgroundColor = [UIColor blueColor];
    
    
    // 创建首页button
    UIButton *homeButton = [UIButton buttonWithType:UIButtonTypeCustom];
    [homeButton setFrame:CGRectMake(frame.origin.x, frame.origin.y, TABBAR_TAP_BUTTON_WIDTH, TABBAR_HEIGHT)];
    [homeButton setImage:[UIImage imageNamed:TABBAR_TAP_HOMEBUTTON_IMAGE] forState:UIControlStateNormal];
    [homeButton setImage:[UIImage imageNamed:TABBAR_TAP_HOMEBUTTON_SELECTED_IMAGE] forState:UIControlStateHighlighted];
    [homeButton setTag:0];
    homeButton.selected = YES;
    _lastButton = homeButton;
    [homeButton addTarget:self action:@selector(tapAction:) forControlEvents:UIControlEventTouchUpInside];
    [_tabBarView addSubview:homeButton];
    
    
    // 创建新闻button
    UIButton *newsButton = [UIButton buttonWithType:UIButtonTypeCustom];
    [newsButton setFrame:CGRectMake(frame.origin.x+TABBAR_TAP_BUTTON_WIDTH*1, frame.origin.y, TABBAR_TAP_BUTTON_WIDTH, TABBAR_HEIGHT)];
    [newsButton setImage:[UIImage imageNamed:TABBAR_TAP_NEWSBUTTON_IMAGE] forState:UIControlStateNormal];
    [newsButton setImage:[UIImage imageNamed:TABBAR_TAP_NEWSBUTTON_SELECTED_IMAGE] forState:UIControlStateHighlighted];
    [newsButton setTag:2];
    [newsButton addTarget:self action:@selector(tapAction:) forControlEvents:UIControlEventTouchUpInside];
    [_tabBarView addSubview:newsButton];
    
    
    // 添加到当前控制器到view上
    [self.view addSubview:_tabBarView];
    
    // 创建影评button
    UIButton *ratingButton = [UIButton buttonWithType:UIButtonTypeCustom];
    [ratingButton setFrame:CGRectMake(frame.origin.x+TABBAR_TAP_BUTTON_WIDTH*2, frame.origin.y, TABBAR_TAP_BUTTON_WIDTH, TABBAR_HEIGHT)];
    [ratingButton setImage:[UIImage imageNamed:TABBAR_TAP_RATINGBUTTON_IMAGE] forState:UIControlStateNormal];
    [ratingButton setImage:[UIImage imageNamed:TABBAR_TAP_RATINGBUTTON_SELECTED_IMAGE] forState:UIControlStateHighlighted];
    [ratingButton setTag:2];
    [ratingButton addTarget:self action:@selector(tapAction:) forControlEvents:UIControlEventTouchUpInside];
    [_tabBarView addSubview:ratingButton];
    
    
    // 创建电影院button
    UIButton *cinemaButton = [UIButton buttonWithType:UIButtonTypeCustom];
    [cinemaButton setFrame:CGRectMake(frame.origin.x+TABBAR_TAP_BUTTON_WIDTH*3, frame.origin.y, TABBAR_TAP_BUTTON_WIDTH, TABBAR_HEIGHT)];
    [cinemaButton setImage:[UIImage imageNamed:TABBAR_TAP_CINEMABUTTON_IMAGE] forState:UIControlStateNormal];
    [cinemaButton setImage:[UIImage imageNamed:TABBAR_TAP_CINEMABUTTON_SELECTED_IMAGE] forState:UIControlStateHighlighted];
    [cinemaButton setTag:3];
    [cinemaButton addTarget:self action:@selector(tapAction:) forControlEvents:UIControlEventTouchUpInside];
    [_tabBarView addSubview:cinemaButton];
    
    
    // 创建更多button
    UIButton *moreButton = [UIButton buttonWithType:UIButtonTypeCustom];
    [moreButton setFrame:CGRectMake(frame.origin.x+TABBAR_TAP_BUTTON_WIDTH*4, frame.origin.y, TABBAR_TAP_BUTTON_WIDTH, TABBAR_HEIGHT)];
    [moreButton setImage:[UIImage imageNamed:TABBAR_TAP_MOREBUTTON_IMAGE] forState:UIControlStateNormal];
    [moreButton setImage:[UIImage imageNamed:TABBAR_TAP_MOREBUTTON_SELECTED_IMAGE] forState:UIControlStateHighlighted];
    [moreButton setTag:4];
    [moreButton addTarget:self action:@selector(tapAction:) forControlEvents:UIControlEventTouchUpInside];
    [_tabBarView addSubview:moreButton];
    
    
}

- (void)tapAction:(UIButton*)button
{
    if (_lastButton != button)
    {
        _lastButton.selected = NO;
    }
    _lastButton = button;
    
    button.selected = YES;
    self.selectedIndex = button.tag;
    
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    // Get the new view controller using [segue destinationViewController].
    // Pass the selected object to the new view controller.
}
*/

@end

5）xcode7.2 不能建立新的空工程，只能先建一个sigleview，然后把main.storyboard等删了，然后把plist的相关项删了，然后在app delegate里面加上面那几行代码。

下面就是tabbar的效果了，哈哈！

mac上面加图片怎么这么大，有没有知道怎么变小点？？？