Question

我正在使用带有PageControl的UIPageViewController在我的PageViewController中显示图像。一切都很完美。但页面是否有可能在特定时间后自动滑动（滚动）到下一页？

Y有这个代码，但不工作，我需要UIPageViewController自动滚动。

NSTimer *aTimer;
NSArray *viewControllers;


-(void)viewDidAppear:(BOOL)animated{

    aTimer = [NSTimer scheduledTimerWithTimeInterval:2 target:self selector:@selector(animacion) userInfo:nil repeats:YES];

}


-(void)animation{

[pageVCObj setViewControllers:viewControllers direction:UIPageViewControllerNavigationDirectionForward animated:YES completion:nil];
} 



- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view from its nib.


    self.pageController.doubleSided =YES;

    self.pageController = [[UIPageViewController alloc] initWithTransitionStyle:UIPageViewControllerTransitionStylePageCurl navigationOrientation:UIPageViewControllerNavigationOrientationHorizontal options:nil];

    self.pageController.dataSource = self;
    [[self.pageController view] setFrame:[[self view] bounds]];

    APPChildViewController5 *initialViewController = [self viewControllerAtIndex:0];

     viewControllers = [NSArray arrayWithObject:initialViewController];

    [self.pageController setViewControllers:viewControllers direction:UIPageViewControllerNavigationDirectionForward animated:NO completion:nil];

    [self addChildViewController:self.pageController];
    [[self view] addSubview:[self.pageController view]];
    [self.pageController didMoveToParentViewController:self];


}

Answer 1

你输了一个拼写错误：

aTimer = [NSTimer scheduledTimerWithTimeInterval:2 target:self selector:@selector(animacion) userInfo:nil repeats:YES];

您提供了选择器名称animacion，但您的方法称为animation。

Answer 2

定时器不能在主循环中运行。试试这个：

aTimer = [[NSRunLoop mainLoop] addTimer:[NSTimer timerWithTimeInterval:2 target:self selector:@selector(animacion) userInfo:nil repeats:YES]];

如何在没有手势的情况下自动触发翻页过渡？

2 个答案: