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Hide NavigationBar custom views #11

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Merged
ninjinkun merged 2 commits into from
Mar 21, 2014
Merged

Hide NavigationBar custom views #11

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50ffabb
hide all navbar subviews
Jan 23, 2014
ce836c5
Remove tabs
ninjinkun Mar 21, 2014
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14 changes: 9 additions & 5 deletions NJKScrollFullScreen/UIViewController+NJKFullScreenSupport.m
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Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,8 @@

#import "UIViewController+NJKFullScreenSupport.h"

#define kNearZero 0.000001f

@implementation UIViewController (NJKFullScreenSupport)

- (void)showNavigationBar:(BOOL)animated
Expand Down Expand Up @@ -49,12 +51,15 @@ - (void)setNavigationBarOriginY:(CGFloat)y animated:(BOOL)animated
CGFloat bottomLimit = statusBarHeight;

frame.origin.y = fmin(fmax(y, topLimit), bottomLimit);
CGFloat alpha = 1 - (statusBarHeight - frame.origin.y) / statusBarHeight;
UIColor *titleTextColor = self.navigationController.navigationBar.titleTextAttributes[NSForegroundColorAttributeName] ?: [UIColor blackColor];
titleTextColor = [titleTextColor colorWithAlphaComponent:alpha]; // fade title
CGFloat alpha = MAX(1 - (statusBarHeight - frame.origin.y) / statusBarHeight, kNearZero);
[UIView animateWithDuration:animated ? 0.1 : 0 animations:^{
self.navigationController.navigationBar.frame = frame;
[self.navigationController.navigationBar setTitleTextAttributes:@{ NSForegroundColorAttributeName : titleTextColor }];
NSUInteger index = 0;
for (UIView *view in self.navigationController.navigationBar.subviews) {
index++;
if (index == 1 || view.hidden || view.alpha <= 0.0f) continue;
view.alpha = alpha;
}
if (NJK_IS_RUNNING_IOS7) {
// fade bar buttons
UIColor *tintColor = self.navigationController.navigationBar.tintColor;
Expand All @@ -63,7 +68,6 @@ - (void)setNavigationBarOriginY:(CGFloat)y animated:(BOOL)animated
self.navigationController.navigationBar.tintColor = [UIColor colorWithRed:components[0] green:components[1] blue:components[2] alpha:alpha];
}
}

}];
}

Expand Down