IOS double-click tabbar to refresh the page, and iostabbar to refresh the page

IOS double-click tabbar to refresh the page, and iostabbar to refresh the page

/* Inherit the UITabBarController */

# Pragma mark <UITabBarControllerDelegate>

-(Void) tabBarController :( UITabBarController *) tabBarController didSelectViewController :( UIViewController *) viewController {

If ([self doubleClick]) {

UINavigationController * navigation = (UINavigationController *) viewController;

If ([navigation. topViewController respondsToSelector: @ selector (tabbarDoubleClick)]) {

[Navigation. topViewController performSelector: @ selector (tabbarDoubleClick)];

}

}

}

 

/* Determine whether it is double-click (because the system does not provide the double-click method, you can determine by clicking the interval )*/

-(BOOL) doubleClick {

 

NSDate * date = [NSDate date];

 

If (date. timeIntervalSince1970-self. lastDate. timeIntervalSince1970 <0.5 ){

 

// After a double-click is completed, reset the time of the first click to distinguish between three or multiple clicks.

 

Self. lastDate = [NSDate dateWithTimeIntervalSince1970: 0];

 

Return YES;

 

}

 

Self. lastDate = date;

 

 

Return NO;

 

}

# Prama mark-proxy Implementation Method

/* On the interface to be refreshed */

-(Void) tabbarDoubleClick {

}