THTinderNavigationController

#Installation

Just drop THTinderNavigationController directory in your project.

#How to use

Create a THTinderNavigationController.

THTinderNavigationController *tinderNavigationController = [[THTinderNavigationController alloc] init];

THTinderNavigationController can take any UIView as a navigationBarItem. Just set its navBarItemViews property.

tinderNavigationController.navbarItemViews = @[
                                               [[NavigationBarItem alloc] init],
                                               [[NavigationBarItem alloc] init],
                                               [[NavigationBarItem alloc] init]
                                               ];

To animate your view based on its position, the view must respond to - (void)updateViewWithRatio:(CGFloat)ration in THTinderNavigationBarItem protocol.

In the demo, to change the color:

- (void)updateViewWithRatio:(CGFloat)ratio
{
//    Color change animation

    self.coloredView.alpha = ratio;
}

In the demo, to change the size:

- (void)updateViewWithRatio:(CGFloat)ratio
{
//    Size change animation

    ratio = ratio/2.0 + 0.5;
    CGFloat height = self.frame.size.height * ratio;
    CGFloat width = self.frame.size.width * ratio;
    CGFloat x = (self.frame.size.width - width) / 2.0;
    CGFloat y = (self.frame.size.height - height) / 2.0;
    self.coloredView.frame = CGRectMake(x, y, width, height);
    self.coloredView.layer.cornerRadius = height/2.0;
}