iOS：滑动手势以在同一控制器中加载不同的数据

Posted 2023-03-10

【中文标题】iOS：滑动手势以在同一控制器中加载不同的数据

【英文标题】：iOS: swipe gesture to load different data within same controller

【发布时间】：2014-04-18 10:44:16

【问题描述】：

在我的应用程序中，我正在尝试实现一个功能（类似于在同一视图中月份更改的日历），例如如果当前视图显示当天（今天）的新闻，那么如果用户向右滑动，它应该显示下一个每日新闻，向左滑动应显示前一日新闻。

I have so far

在表格视图中显示今日新闻的单个 NewsViewController

在其他主题上，许多人建议使用类似这个问题的库 Tom 建议 Handling a view controller that slides in with either way swipe 我是ios开发新手，不知道怎么做，任何帮助将不胜感激。

【问题讨论】：

查看此链接developer.apple.com/library/ios/samplecode/…

【参考方案1】：

所以你可以在这里https://***.com/a/20596933/1307844https://***.com/a/20596933/1307844尝试使用任何手势方法提取数据

你的答案完全是你如何实现你的手势方法。

【讨论】：

感谢您的回复，但如何在滑动时显示具有不同数据的相同 viewController。

意味着相同的视图将迭代新的 Web 服务。请问您有任何在线教程链接吗？这说明了如何做到这一点？

@MuhammadUmair ：有很多可能性取决于您的实现。对于一般情况，假设您正在通过服务调用在UILabel 中显示您的新闻数据。因此，如果您向左滑动，请加载第二天数据的服务调用。如果手势是向右滑动，请使用服务调用获取前一天的数据。我相信，您一定知道如何调用服务或阅读提要。最好将问题分解成小块，例如服务调用、数据表示、手势，然后重新加入所有小块。

【参考方案2】：

我找到了解决方案，这是我的代码 sn-ps...

ViewDidLoad：

UISwipeGestureRecognizer *oneFingerSwipeLeft = [[UISwipeGestureRecognizer alloc]
                                                initWithTarget:self
                                                action:@selector(oneFingerSwipeLeft:)];
[oneFingerSwipeLeft setDirection:UISwipeGestureRecognizerDirectionLeft];
[viewContent addGestureRecognizer:oneFingerSwipeLeft];

UISwipeGestureRecognizer *oneFingerSwipeRight = [[UISwipeGestureRecognizer alloc]
                                                 initWithTarget:self
                                                 action:@selector(oneFingerSwipeRight:)];
[oneFingerSwipeRight setDirection:UISwipeGestureRecognizerDirectionRight];
[viewContent addGestureRecognizer:oneFingerSwipeRight];

oneFingerSwipeLeft：

- (void)oneFingerSwipeLeft:(UITapGestureRecognizer *)recognizer 
newsList = [[NSMutableArray alloc] init];

//to animate the view as new view is loaded
[UIView animateWithDuration:0.1 animations:^

    viewContent.frame = CGRectMake( -viewContent.frame.size.width, viewContent.frame.origin.y , viewContent.frame.size.width, viewContent.frame.size.height);
    [self loadData];

 completion:^(BOOL finished) 
    viewContent.frame = CGRectMake( viewContent.frame.size.width,viewContent.frame.origin.y, viewContent.frame.size.width, viewContent.frame.size.height);

    [UIView animateWithDuration:0.3 animations:^
        viewContent.frame = CGRectMake(0.0, viewContent.frame.origin.y, viewContent.frame.size.width, viewContent.frame.size.height);
    ];
];

selectedDay++;
[self fetchDataFromWeb];

oneFingerSwipeRight：

- (void)oneFingerSwipeRight:(UITapGestureRecognizer *)recognizer 
newsList = [[NSMutableArray alloc] init];

//to animate the view as new view is loaded
[UIView animateWithDuration:0.1 animations:^

    viewContent.frame = CGRectMake( viewContent.frame.size.width, viewContent.frame.origin.y , viewContent.frame.size.width, viewContent.frame.size.height);
    [self loadData];

 completion:^(BOOL finished) 
    viewContent.frame = CGRectMake( -viewContent.frame.size.width,viewContent.frame.origin.y, viewContent.frame.size.width, viewContent.frame.size.height);

    [UIView animateWithDuration:0.3 animations:^
        viewContent.frame = CGRectMake(0.0, viewContent.frame.origin.y, viewContent.frame.size.width, viewContent.frame.size.height);
    ];
];

selectedDay--;
[self fetchDataFromWeb];

感谢@BalramTiwari 的宝贵建议。

【参考方案3】：

这是 IceFish 的快速回答：

override func viewDidLoad() 
    super.viewDidLoad()

    let swipeRight = UISwipeGestureRecognizer(target: self, action: "respondToSwipeGesture:")
    swipeRight.direction = UISwipeGestureRecognizerDirection.Right
    self.view.addGestureRecognizer(swipeRight)

    let swipeLeft = UISwipeGestureRecognizer(target: self, action: "respondToSwipeGesture:")
    swipeLeft.direction = UISwipeGestureRecognizerDirection.Left
    self.view.addGestureRecognizer(swipeLeft)

和响应者：

func respondToSwipeGesture(gesture: UIGestureRecognizer) 

    if let swipeGesture = gesture as? UISwipeGestureRecognizer 

        switch swipeGesture.direction 

        case UISwipeGestureRecognizerDirection.Left:
            UIView.animateWithDuration(0.1, animations: 
                let myFrame = self.view.frame
                self.view.frame = CGRectMake(-myFrame.size.width, myFrame.origin.y , myFrame.size.width, myFrame.size.height)
                , completion: _ in
                    let myFrame = self.view.frame
                    self.view.frame = CGRectMake(myFrame.size.width, myFrame.origin.y , myFrame.size.width, myFrame.size.height)

                    UIView.animateWithDuration(0.3, animations: 
                        let myFrame = self.view.frame
                        self.view.frame = CGRectMake(0.0, myFrame.origin.y , myFrame.size.width, myFrame.size.height)
                        , completion: nil)
            )
            // do left action here

        case UISwipeGestureRecognizerDirection.Right:
            UIView.animateWithDuration(0.1, animations: 
                let myFrame = self.view.frame
                self.view.frame = CGRectMake(myFrame.size.width, myFrame.origin.y , myFrame.size.width, myFrame.size.height)
            , completion: _ in
                let myFrame = self.view.frame
                self.view.frame = CGRectMake(-myFrame.size.width, myFrame.origin.y , myFrame.size.width, myFrame.size.height)

                UIView.animateWithDuration(0.3, animations: 
                    let myFrame = self.view.frame
                    self.view.frame = CGRectMake(0.0, myFrame.origin.y , myFrame.size.width, myFrame.size.height)
                , completion: nil)
            )
            // do right action here

        default:
            break