新特性展示

1.新特性声明时候的两种方法

 

//    //添加window的根视图控制器，UITabBarController
//    
//    if (![[NSUserDefaults standardUserDefaults]boolForKey:@"1"]) {
//        [[NSUserDefaults standardUserDefaults] setBool:YES forKey:@"1"];
//        NewFeatureController * newFeature=[[NewFeatureController alloc] init];
//        self.window.rootViewController=newFeature;
//        [newFeature release];
//        
//    }
//    
//    else{
//        TarbarViewController * tabBarVC = [[TarbarViewController alloc] init];
//        self.window.rootViewController = tabBarVC;
//        [tabBarVC release];
//        
//    }
    
    NSString *key = @"CFBundleVersion";
    // 取出沙盒中存储的上次使用软件的版本号
    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
    NSString *lastVersion = [defaults stringForKey:key];
    
    // 获得当前软件的版本号
    NSString *currentVersion = [NSBundle mainBundle].infoDictionary[key];
    if ([currentVersion isEqualToString:lastVersion]) {
        // 显示状态栏
//        [UIApplication sharedApplication].statusBarHidden = NO;
        [UIApplication sharedApplication].keyWindow.rootViewController = [[TarbarViewController alloc] init];
    } else { // 新版本
        [UIApplication sharedApplication].keyWindow.rootViewController = [[NewFeatureController alloc] init];
        // 存储新版本
        [defaults setObject:currentVersion forKey:key];
        [defaults synchronize];
    }

 

 

2.新特性的代码

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    
    // 1.添加UISrollView
    [self setupScrollView];
    
    // 2.添加pageControl
    [self setupPageControl];
    
}

/**
 *  添加pageControl
 */
- (void)setupPageControl
{
    // 1.添加
    UIPageControl *pageControl = [[UIPageControl alloc] init];
    pageControl.numberOfPages = IWNewfeatureImageCount;
    CGFloat centerX = self.view.frame.size.width * 0.5;
    CGFloat centerY = self.view.frame.size.height - 30;
    pageControl.center = CGPointMake(centerX, centerY);
    pageControl.bounds = CGRectMake(0, 0, 100, 30);
    pageControl.userInteractionEnabled = NO;
    [self.view addSubview:pageControl];
    self.pageControl = pageControl;
    
    // 2.设置圆点的颜色
    pageControl.currentPageIndicatorTintColor = SZColor(253, 98, 42);
    pageControl.pageIndicatorTintColor = SZColor(189, 189, 189);
    [pageControl release];
}

/**
 *  添加UISrollView
 */
- (void)setupScrollView
{
    UIScrollView *scrollView = [[UIScrollView alloc] init];
    scrollView.frame = self.view.bounds;
    scrollView.delegate = self;
    [self.view addSubview:scrollView];
    
    // 2.添加图片
    CGFloat imageW = scrollView.frame.size.width;
    CGFloat imageH = scrollView.frame.size.height;
    for (int index = 0; index<IWNewfeatureImageCount; index++) {
        UIImageView *imageView = [[UIImageView alloc] init];
        
        // 设置图片
        NSString *name = nil;
        name = [NSString stringWithFormat:@"login_introduce_bg%d.jpg", index + 1];
        
        
        imageView.image = [UIImage imageNamed:name];
        
        // 设置frame
        CGFloat imageX = index * imageW;
        imageView.frame = CGRectMake(imageX, 0, imageW, imageH);
        
        [scrollView addSubview:imageView];
        
        // 在最后一个图片上面添加按钮
        if (index == IWNewfeatureImageCount - 1) {
            [self setupLastImageView:imageView];
        }
    }
    
    // 3.设置滚动的内容尺寸
    scrollView.contentSize = CGSizeMake(imageW * IWNewfeatureImageCount, 0);
    scrollView.showsHorizontalScrollIndicator = NO;
    scrollView.pagingEnabled = YES;
    scrollView.bounces = NO;
}

- (void)setupLastImageView:(UIImageView *)imageView
{
    // 0.让imageView能跟用户交互
    imageView.userInteractionEnabled = YES;
    
    // 1.添加开始按钮
    UIButton *startButton = [[UIButton alloc] init];
    startButton.backgroundColor = [UIColor redColor];
    [startButton setBackgroundImage:[UIImage imageNamed:@"new_feature_finish_button"] forState:UIControlStateNormal];
    [startButton setBackgroundImage:[UIImage imageNamed:@"new_feature_finish_button_highlighted"] forState:UIControlStateHighlighted];
    
    // 2.设置frame
    CGFloat centerX = imageView.frame.size.width * 0.5;
    CGFloat centerY = imageView.frame.size.height * 0.6;
    startButton.center = CGPointMake(centerX, centerY);
    startButton.bounds = (CGRect){CGPointZero, startButton.currentBackgroundImage.size};
        
    // 3.设置文字
    [startButton setTitle:@"开始旅行" forState:UIControlStateNormal];
    [startButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
    [startButton addTarget:self action:@selector(start) forControlEvents:UIControlEventTouchUpInside];
    [imageView addSubview:startButton];
    
    // 4.添加checkbox
    UIButton *checkbox = [[UIButton alloc] init];
    checkbox.selected = NO;
    [checkbox setTitle:@"分享给大家" forState:UIControlStateNormal];
    [checkbox setImage:[UIImage imageNamed:@"new_feature_share_false"] forState:UIControlStateNormal];
    [checkbox setImage:[UIImage imageNamed:@"new_feature_share_true"] forState:UIControlStateSelected];
    checkbox.bounds = CGRectMake(0, 0, 200, 50);
    CGFloat checkboxCenterX = centerX;
    CGFloat checkboxCenterY = imageView.frame.size.height * 0.5;
    checkbox.center = CGPointMake(checkboxCenterX, checkboxCenterY);
    [checkbox setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
    checkbox.titleLabel.font = [UIFont systemFontOfSize:15];
    [checkbox addTarget:self action:@selector(checkboxClick:) forControlEvents:UIControlEventTouchUpInside];
    //    checkbox.titleEdgeInsets = UIEdgeInsetsMake(0, 10, 0, 0);
    checkbox.imageEdgeInsets = UIEdgeInsetsMake(0, 0, 0, 10);
    //    checkbox.contentEdgeInsets = UIEdgeInsetsMake(10, 10, 10, 10);
    [imageView addSubview:checkbox];
}

/**
 *  开始微博
 */
- (void)start
{
    // 显示状态栏
    [UIApplication sharedApplication].statusBarHidden = NO;
    // 切换窗口的根控制器
    TarbarViewController * tabbarVC = [[TarbarViewController alloc] init];
    self.view.window.rootViewController = tabbarVC;
    [tabbarVC release];
}

- (void)checkboxClick:(UIButton *)checkbox
{
    
    checkbox.selected = !checkbox.isSelected;
    if (checkbox.selected == YES) {
     //这里是示例用了友盟的分享
        [UMSocialSnsService presentSnsIconSheetView:self appKey:@"5475c280fd98c52865000704" shareText:@"图话旅行,更浪漫的旅行" shareImage:[UIImage imageNamed:@"shared.jpg"] shareToSnsNames:[NSArray arrayWithObjects:UMShareToSina,UMShareToDouban,UMShareToTencent,UMShareToRenren, nil] delegate:nil];
    }
}

/**
 *  只要UIScrollView滚动了,就会调用
 *
 */
- (void)scrollViewDidScroll:(UIScrollView *)scrollView
{
    // 1.取出水平方向上滚动的距离
    CGFloat offsetX = scrollView.contentOffset.x;
    
    // 2.求出页码
    double pageDouble = offsetX / scrollView.frame.size.width;
    int pageInt = (int)(pageDouble + 0.5);
    self.pageControl.currentPage = pageInt;
}



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