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Code Quality Rank: L5
Programming language: Objective-C
License: MIT License
Tags: UI     Navigation Bar    
Latest version: v2.1.9

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README

LTNavigationbar

Deprecated

This lib uses a hacky way to achieve the result, in the new iOS version, the structure of UINavigation is changed and this lib no longer works anymore, so please check these alternatives:

swift version

https://github.com/ltebean/LTNavigationBar/tree/swift3.0

Purpose

It is hard to change the appearance of UINavigationBar dynamically, so I made this lib to make the job easy.

Demo

1. Changing the background color:

LTNavigationbar

2. Making navigation bar scroll along with a scroll view:

LTNavigationbar

Usage

First, import this lib:

#import "UINavigationBar+Awesome.h"

The category includes lots of method that helps to change UINavigationBar's appearance dynamically:

@interface UINavigationBar (Awesome)
- (void)lt_setBackgroundColor:(UIColor *)backgroundColor;
- (void)lt_setElementsAlpha:(CGFloat)alpha;
- (void)lt_setTranslationY:(CGFloat)translationY;
- (void)lt_reset;
@end

You can call the various setter wherever you want, like:

[self.navigationController.navigationBar lt_setBackgroundColor:[UIColor blueColor]];

And usually in viewWillDisappear, you should call this method to avoid any side effects:

- (void)viewWillDisappear:(BOOL)animated
{
    [super viewWillDisappear:animated];
    [self.navigationController.navigationBar lt_reset];
}

See the example for details~