/** * 系统在第一次使用这个类的时候调用(1个类只会调用一次) */ + (void)initialize { // 设置导航栏主题 UINavigationBar *navBar = [UINavigationBar appearance]; // 设置背景图片 NSString *bgName = nil; if (iOS7) { // 至少是iOS 7.0 bgName = @"NavBar64"; } else { // 非iOS7 bgName = @"NavBar"; } [navBar setBackgroundImage:[UIImage imageNamed:bgName] forBarMetrics:UIBarMetricsDefault]; // 设置标题文字颜色 NSMutableDictionary *attrs = [NSMutableDictionary dictionary]; attrs[NSForegroundColorAttributeName] = [UIColor whiteColor]; attrs[NSFontAttributeName] = [UIFont systemFontOfSize:16]; [navBar setTitleTextAttributes:attrs]; //设置BarButtonItem的主题 UIBarButtonItem *item=[UIBarButtonItem appearance]; //设置文字颜色 NSMutableDictionary *itemAttrs=[NSMutableDictionary dictionary]; itemAttrs[NSFontAttributeName]=[UIFont systemFontOfSize:14]; itemAttrs[NSForegroundColorAttributeName]=[UIColor whiteColor]; [item setTitleTextAttributes:itemAttrs forState:UIControlStateNormal]; if (!iOS7) { //设置按钮背景 [item setBackgroundImage:[UIImage imageNamed:@"NavButton"] forState:UIControlStateNormal barMetrics:UIBarMetricsDefault]; [item setBackgroundImage:[UIImage imageNamed:@"NavButtonPressed"] forState:UIControlStateHighlighted barMetrics:UIBarMetricsDefault]; //设置返回按钮的背景 [item setBackButtonBackgroundImage:[UIImage imageNamed:@"NavButton"] forState:UIControlStateNormal barMetrics:UIBarMetricsDefault]; [item setBackButtonBackgroundImage:[UIImage imageNamed:@"NavButtonPressed"] forState:UIControlStateHighlighted barMetrics:UIBarMetricsDefault]; } else{ navBar.tintColor=[UIColor whiteColor]; } } |
