//
// NavController.m
//
// Created by Joe Zhang on 15/5/23.
// Copyright (c) 2015年 张秀清. All rights reserved.
//

#import "NavController.h"
#import "UIBarButtonItem+Joe.h"
#import "Prefix.h"

@interface NavController ()

@end

@implementation NavController

• (void)viewDidLoad {
  [super viewDidLoad];

  [self setUINavigationBar];

  [self setUIBarBuutonItem];
  }

-(void)setUINavigationBar{

if (!iOS7) {  
    //Appearance  全局设置UINavigationBar  
    UINavigationBar \*bar = \[UINavigationBar appearance\];  
    \[bar setBackgroundImage:\[UIImage imageNamed:@"navigationbar\_background"\] forBarMetrics:UIBarMetricsDefault\];  
}  

}

-(void)setUIBarBuutonItem{
//全局设置UIBarButtonItem
UIBarButtonItem *item = [UIBarButtonItem appearance];

NSShadow \*shadow = \[\[NSShadow alloc\]init\];  
shadow.shadowOffset = CGSizeMake(0, 0);  
\[item setTitleTextAttributes:@{  
                               NSFontAttributeName : \[UIFont systemFontOfSize:15\],  
                               NSForegroundColorAttributeName : \[UIColor orangeColor\],  
                               NSShadowAttributeName : shadow

                               } forState:UIControlStateNormal\];  

}
//重写Push方法
-(void)pushViewController:(UIViewController *)viewController animated:(BOOL)animated{

if (self.viewControllers.count>0) {//如果栈底的控制器个数大于0(tabbar4个nav之后的控制器)

    viewController.hidesBottomBarWhenPushed = YES;//隐藏底部tabbar

    viewController.navigationItem.leftBarButtonItem = \[UIBarButtonItem itemWithImageName:@"navigationbar\_back" highLightImageName:@"navigationbar\_back\_highlighted" target:self action:@selector(back)\];

    viewController.navigationItem.rightBarButtonItem = \[UIBarButtonItem itemWithImageName:@"navigationbar\_more" highLightImageName:@"navigationbar\_more\_highlighted" target:self action:@selector(pop)\];

}  
\[super pushViewController:viewController animated:YES\];  

}

-(void)back{

\[self popViewControllerAnimated:YES\];  

}

-(void)pop{

\[self popToRootViewControllerAnimated:YES\];  

}

@end