新浪微博客户端(4)-设置导航栏主题

#import "DJNavigationController.h"

@implementation DJNavigationController



+ (void)initialize {

    UIBarButtonItem *btnItem = [UIBarButtonItem appearance];
    
    // 设置当前item可用状态
    NSMutableDictionary *normalAttr = [NSMutableDictionary dictionary];
    // 设置前景色
    normalAttr[NSForegroundColorAttributeName] = [UIColor orangeColor];
    // 设置当前字体大小
    normalAttr[NSFontAttributeName] = [UIFont systemFontOfSize:14];
    [btnItem setTitleTextAttributes:normalAttr forState:UIControlStateNormal];
    
    
    // 设置当前item不可用状态
    NSMutableDictionary *disableAttr = [NSMutableDictionary dictionary];
    disableAttr[NSForegroundColorAttributeName] = [UIColor grayColor];
    disableAttr[NSFontAttributeName] = [UIFont systemFontOfSize:14];
    [btnItem setTitleTextAttributes:disableAttr forState:UIControlStateDisabled];
    
}