iOS 7 uinavigationcontroller如何检测滑动? [英] iOS 7 uinavigationcontroller how to detect swipe?
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问题描述
在新的iOS 7 UINavigationController
中,有滑动手势可在视图之间切换.
有没有办法检测或拦截手势?
In the new iOS 7 UINavigationController
, there is a swipe gesture to switch between views.
Is there a way to detect or intercept the gesture?
推荐答案
交互式弹出手势识别器通过UINavigationController
的interactivePopGestureRecognizer
属性公开.您可以将自己的控制器添加为手势识别器的目标并进行适当的响应:
The interactive pop gesture recognizer is exposed through UINavigationController
's interactivePopGestureRecognizer
property. You can add your own controller as a target of the gesture recognizer and respond appropriately:
@implementation MyViewController
...
- (void)viewDidLoad
{
[super viewDidLoad];
[self.navigationController.interactivePopGestureRecognizer addTarget:self
action:@selector(handlePopGesture:)];
}
- (void)handlePopGesture:(UIGestureRecognizer *)gesture
{
if (gesture.state == UIGestureRecognizerStateBegan)
{
// respond to beginning of pop gesture
}
// handle other gesture states, if desired
}
...
@end
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