iOS開發 自訂navigationleftItem 之後手勢失效的問題

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@property (nonatomic, strong) UIViewController *currentShowVC;    //設定代理    self.navigationController.interactivePopGestureRecognizer.delegate =(id)self;    self.navigationController.interactivePopGestureRecognizer.enabled = YES;    if (self.navigationController.viewControllers.count == 1){        //將當前置航控制器置空        self.currentShowVC = Nil;    }else{        self.currentShowVC = self;    }- (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer{    if (gestureRecognizer == self.navigationController.interactivePopGestureRecognizer) {        //the most important        return (self.currentShowVC == self.navigationController.topViewController);    }    return YES;}    self.navigationController.interactivePopGestureRecognizer.delegate = self;

待整理。。。。。

iOS開發 自訂navigationleftItem 之後手勢失效的問題