- (void)viewDidLoad {
[super viewDidLoad];
self.view.backgroundColor = [UIColor blackColor];// 背景设为黑色
// 图片
UIImageView *myImage = [[UIImageView alloc] initWithFrame:CGRectMake(0, (SCREENHEIGHT - SCREENWIDTH + 100) / 2, SCREENWIDTH, SCREENWIDTH - 100)];
myImage.image = [UIImage imageNamed:@"image.jpg"];
[self.view addSubview:myImage];
// 右下角查看评论的按钮
UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(SCREENWIDTH - 100, SCREENHEIGHT - 50, 80, 30)];
label.text = @"查看评论";
label.textColor = [UIColor whiteColor];
label.userInteractionEnabled = YES;
UITapGestureRecognizer *labelTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(viewComment)];
[label addGestureRecognizer:labelTap];
[self.view addSubview:label];
}

// 查看评论
- (void)viewComment {
CommentViewController *commentVC = [[CommentViewController alloc] init];
[self.navigationController pushViewController:commentVC animated:NO];
// 设置翻页动画为从右边翻上来
[UIView transitionWithView:self.navigationController.view duration:1 options:UIViewAnimationOptionTransitionFlipFromRight animations:nil completion:nil];
}

- (void)viewDidLoad {
[super viewDidLoad];
self.view.backgroundColor = [UIColor whiteColor];// 背景色设为白色
// 自定义导航栏按钮
UIBarButtonItem *backButton = [[UIBarButtonItem alloc] initWithTitle:@"返回" style:UIBarButtonItemStyleBordered target:self action:@selector(back)];
self.navigationItem.leftBarButtonItem = backButton;
// 图片
UIImageView *myImage = [[UIImageView alloc] initWithFrame:CGRectMake((SCREENWIDTH - 300)/2, (SCREENHEIGHT - 200)/2 - 100, 300, 200)];
myImage.image = [UIImage imageNamed:@"image.jpg"];
[self.view addSubview:myImage];
// 一条文本
UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake((SCREENWIDTH - 200)/2, myImage.frame.origin.y + myImage.frame.size.height + 20, 200, 30)];
label.text = @"100个赞，100条评论";
label.textAlignment = NSTextAlignmentCenter;
[self.view addSubview:label];
}

// 返回上一页
- (void)back {
// 设置翻转动画为从左边翻上来
[UIView transitionWithView:self.navigationController.view duration:1 options:UIViewAnimationOptionTransitionFlipFromLeft animations:nil completion:nil];
[self.navigationController popViewControllerAnimated:NO];
}