iphone – iOS：滑块左/右之间选项卡可能？

如果您使用标签栏控制器,则可以在每个选项卡的视图上设置滑动手势识别器.当手势识别器被触发时,它可以改变tabBarController.SELEctedTabIndex

此效果将不会被动画化,但会以滑动手势切换标签.这大概是当我有一个带有UITabBar应用的应用程序时,左侧和右侧的按钮,并滑动手势来更改活动选项卡.

- (void)viewDidLoad
{
    [super viewDidLoad];

    UISwipeGestureRecognizer *swipeLeft = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@SELEctor(tappedRightButton:)];
    [swipeLeft setDirection:UISwipeGestureRecognizerDirectionLeft];
    [self.view addGestureRecognizer:swipeLeft];

    UISwipeGestureRecognizer *swipeRight = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@SELEctor(tappedLeftButton:)];
    [swipeRight setDirection:UISwipeGestureRecognizerDirectionRight];
    [self.view addGestureRecognizer:swipeRight];
}

- (IBACtion)tappedRightButton:(id)sender
{
    NSUInteger SELEctedIndex = [rootVC.tabBarController SELEctedIndex];

    [rootVC.tabBarController setSELEctedIndex:SELEctedIndex + 1];
} 

- (IBACtion)tappedLeftButton:(id)sender
{
    NSUInteger SELEctedIndex = [rootVC.tabBarController SELEctedIndex];

    [rootVC.tabBarController setSELEctedIndex:SELEctedIndex - 1]; 
}