A.版本新特性
1.需求
- 第一次使用新版本的时候,不直接进入app,而是展示新特性界面
github: https://github.com/hellovoidworld/HVWWeibo
2.思路
- [[NSBundle mainBundle] infoDictionary]取得当前版本号(最新版本),版本号存储在了info.plist中
- 从preference取得上一次使用的版本号
- 将讲个版本号进行对比,如果相同就是当前是最新版本,直接进入app;如果不相同,就进入新特性界面并保存最新版本号到preference
当前版本号:
当前版本号的key
3.实现
(1)创建一个新的目录来处理新特性加载
自定义一个集成UIViewController的类来处理新特性界面
(注意scrollView没有相应控制器,只能在其他view上加载)
(2)在AppDelegate中app加载完毕方法中
1 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { 2 // Override point for customization after application launch. 3 4 // 启动后显示状态栏 5 UIApplication *app = [UIApplication sharedApplication]; 6 app.statusBarHidden = NO; 7 8 // 设置window 9 self.window = [[UIWindow alloc] init]; 10 self.window.frame = [UIScreen mainScreen].bounds; 11 12 /** 新版本特性 */ 13 // app现在的版本 14 // 由于使用的时Core Foundation的东西,需要桥接 15 NSString *versionKey = (__bridge NSString*) kCFBundleVersionKey; 16 NSDictionary *infoDic = [[NSBundle mainBundle] infoDictionary]; 17 NSString *currentVersion = [infoDic objectForKey:versionKey]; 18 19 // 上次使用的版本 20 NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults]; 21 NSString *lastVersion = [defaults stringForKey:versionKey]; 22 23 // 如果版本变动了,存储新的版本号并启动新版本特性图 24 if (![lastVersion isEqualToString:currentVersion]) { 25 26 // 存储 27 [defaults setObject:currentVersion forKey:versionKey]; 28 [defaults synchronize]; 29 30 // 开启app显示新特性 31 HVWNewFeatureViewController *newFeatureVC = [[HVWNewFeatureViewController alloc] init]; 32 self.window.rootViewController = newFeatureVC; 33 } else { 34 // 创建根控制器 35 HVWTabBarViewController *tabVC = [[HVWTabBarViewController alloc] init]; 36 self.window.rootViewController = tabVC; 37 } 38 39 [self.window makeKeyAndVisible]; 40 41 return YES; 42 }
B.版本新特性的内容
1.需求
- 在特特性界面使用轮播方式显示若干个界面
- 最后一个界面提供一个分享功能和进入app功能
2.思路
- 在新特性控制器的view上加入一个全屏的scrollView
3.实现
1 // 2 // HVWNewFeatureViewController.m 3 // HVWWeibo 4 // 5 // Created by hellovoidworld on 15/2/3. 6 // Copyright (c) 2015年 hellovoidworld. All rights reserved. 7 // 8 9 #import "HVWNewFeatureViewController.h" 10 #import "HVWTabBarViewController.h" 11 12 #define NewFeatureCount 4 13 14 @interface HVWNewFeatureViewController () <UIScrollViewDelegate> 15 16 @property(nonatomic, strong) UIPageControl *pageControl; 17 18 @end 19 20 @implementation HVWNewFeatureViewController 21 22 - (void)viewDidLoad { 23 [super viewDidLoad]; 24 // Do any additional setup after loading the view. 25 26 // 添加scrollView 27 [self setupScrollView]; 28 29 // 添加pageControl 30 [self setupPageControl]; 31 } 32 33 /** 添加scrollView */ 34 - (void) setupScrollView { 35 // 创建一个scrollView 36 UIScrollView *scrollView = [[UIScrollView alloc] init]; 37 scrollView.frame = self.view.bounds; 38 39 // 添加图片 40 for (int i=0; i<NewFeatureCount; i++) { 41 42 // 获取图片 43 NSString *featureImageName = [NSString stringWithFormat:@"new_feature_%d", i+1]; 44 UIImageView *featureImageView = [[UIImageView alloc] initWithImage:[UIImage imageWithNamed:featureImageName]]; 45 46 // 设置图片尺寸位置 47 CGFloat featureWidth = self.view.width; 48 CGFloat featureHeight = self.view.height; 49 CGFloat featureX = featureImageView.width * i; 50 CGFloat featureY = 0; 51 featureImageView.frame = CGRectMake(featureX, featureY, featureWidth, featureHeight); 52 53 // 如果是最后一页,加上功能按钮 54 if (i == (NewFeatureCount - 1)) { 55 // 为了让最后一页的的功能按钮能够生效,必须激活交互功能 56 featureImageView.userInteractionEnabled = YES; 57 58 [self addFunctionButton:featureImageView]; 59 } 60 61 // 添加图片到scrollView 62 [scrollView addSubview:featureImageView]; 63 } 64 65 // 设置scrollView功能属性 66 scrollView.userInteractionEnabled = YES; 67 scrollView.scrollEnabled = YES; // 支持滚动 68 scrollView.contentSize = CGSizeMake(self.view.width * NewFeatureCount, 0); // 只需要水平滚动 69 scrollView.pagingEnabled = YES; // 支持分页 70 scrollView.showsHorizontalScrollIndicator = NO; // 隐藏水平滚动条 71 72 // 设置背景色 73 scrollView.backgroundColor = [UIColor colorWithRed:246/255.0 green:246/255.0 blue:246/255.0 alpha:1.0]; 74 75 // 设置代理 76 scrollView.delegate = self; 77 78 // 添加 79 [self.view addSubview:scrollView]; 80 } 81 82 /** 添加pageControl */ 83 - (void) setupPageControl { 84 // pageControl不能加在scrollView上,不然会随着内容一起滚动 85 UIPageControl *pageControl = [[UIPageControl alloc] init]; 86 pageControl.pageIndicatorTintColor = [UIColor blackColor]; 87 pageControl.currentPageIndicatorTintColor = [UIColor redColor]; 88 pageControl.numberOfPages = NewFeatureCount; 89 90 // 设置位置 91 pageControl.centerX = self.view.width * 0.5; 92 pageControl.centerY = self.view.height * 0.9; 93 94 95 self.pageControl = pageControl; 96 [self.view addSubview:pageControl]; 97 } 98 99 #pragma mark - UIScrollViewDelegate 100 /** scrollView滚动代理方法,在这里控制页码指示器 */ 101 - (void)scrollViewDidScroll:(UIScrollView *)scrollView { 102 // 四舍五入,让图片滚动超过中线的时候改变页码 103 self.pageControl.currentPage = scrollView.contentOffset.x / scrollView.width + 0.5; 104 } 105 106 #pragma mark - 最后一页的功能 107 /** 添加功能按钮 */ 108 - (void) addFunctionButton:(UIImageView *) imageView { 109 // 添加"分享"选项按钮 110 [self addShareButton:imageView]; 111 112 // 添加"进入微博"按钮 113 [self addEnterWeiboButton:imageView]; 114 } 115 116 /** 分享选项按钮 */ 117 - (void) addShareButton:(UIImageView *) imageView { 118 // 创建按钮 119 UIButton *shareButton = [UIButton buttonWithType:UIButtonTypeCustom]; 120 121 [shareButton setTitle:@"分享给大家" forState:UIControlStateNormal]; 122 123 [shareButton setImage:[UIImage imageWithNamed:@"new_feature_share_false"] forState:UIControlStateNormal]; 124 [shareButton setImage:[UIImage imageWithNamed:@"new_feature_share_true"] forState:UIControlStateSelected]; 125 126 127 [shareButton addTarget:self action:@selector(shareButtonClicked:) forControlEvents:UIControlEventTouchUpInside]; 128 129 [shareButton setTitleColor:[UIColor blackColor] forState:UIControlStateNormal]; 130 131 // 位置尺寸 132 shareButton.size = CGSizeMake(150, 50); 133 134 // 必须先设置了size,center才真的在中心,不然就是从左上角开始!!! 135 shareButton.centerX = self.view.width * 0.5; 136 shareButton.centerY = self.view.height * 0.65; 137 138 // 设置内间距 139 shareButton.titleEdgeInsets = UIEdgeInsetsMake(0, 10.0, 0, 0); 140 141 // 添加 142 [imageView addSubview:shareButton]; 143 } 144 145 /** 分享选项点击事件方法 */ 146 - (void) shareButtonClicked:(UIButton *) button { 147 button.selected = !button.selected; 148 } 149 150 /** “进入微博"按钮 */ 151 - (void) addEnterWeiboButton:(UIImageView *) imageView { 152 // 创建按钮 153 UIButton *enterButton = [UIButton buttonWithType:UIButtonTypeCustom]; 154 enterButton.userInteractionEnabled = YES; 155 [enterButton setBackgroundImage:[UIImage imageWithNamed:@"new_feature_finish_button"] forState:UIControlStateNormal]; 156 [enterButton setBackgroundImage:[UIImage imageWithNamed:@"new_feature_finish_button_highlighted"] forState:UIControlStateHighlighted]; 157 [enterButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal]; 158 [enterButton setTitle:@"进入微博" forState:UIControlStateNormal]; 159 160 // 位置尺寸 161 enterButton.size = enterButton.currentBackgroundImage.size; 162 enterButton.centerX = self.view.width * 0.5; 163 enterButton.centerY = self.view.height * 0.8; 164 165 // 监听点击 166 [enterButton addTarget:self action:@selector(enterWeiboButtonClicked) forControlEvents:UIControlEventTouchUpInside]; 167 168 // 添加 169 [imageView addSubview:enterButton]; 170 } 171 172 /** “进入微博” 按钮点击 */ 173 - (void) enterWeiboButtonClicked { 174 UIWindow *window = [UIApplication sharedApplication].keyWindow; 175 window.rootViewController = [[HVWTabBarViewController alloc] init]; 176 } 177 178 @end
时间: 2024-10-10 05:48:16