UINavigationBar && UITabbarItem相關

設定導航欄字型的大小以及顏色

[[UINavigationBar appearance] setTitleTextAttributes:@{NSForegroundColorAttributeName:[UIColor whiteColor],NSFontAttributeName:[UIFont boldSystemFontOfSize:16]}];

設定標籤欄字型的大小和選中顏色

- (void)setupTabbarItemProperty:(UITabBarItem *)tabbarItem{
    //改變字型顏色
 

    [tabbarItem setTitleTextAttributes:@{NSForegroundColorAttributeName:[UIColor lightGrayColor],NSFontAttributeName:[UIFont systemFontOfSize:12]} forState:UIControlStateNormal];

    //選中狀態顏色
    [tabbarItem setTitleTextAttributes:@{NSForegroundColorAttributeName:[UIColor greenColor],NSFontAttributeName:[UIFont
 
 systemFontOfSize:12]} forState:UIControlStateSelected];
}

設定導航欄返回按鈕保留箭頭 去除文字

標準答案：

//方法 一 ：
[[UIBarButtonItem appearance] setBackButtonTitlePositionAdjustment:UIOffsetMake(0, -60)
 forBarMetrics:UIBarMetricsDefault];

//方法 二 ：
UIBarButtonItem *barBtnItem = [[UIBarButtonItem alloc]initWithImage:[UIImage
 
 imageNamed:@"iOS7BackButton"] style:UIBarButtonItemStylePlain target:self action:@selector(goToPrevious:)];
self.navigationItem.leftBarButtonItem = barBtnItem;

等多個方案……

設定介面跳轉時隱藏tabbar

- (void)pushToViewController:(UIViewController *)itemVC{
    self.hidesBottomBarWhenPushed = YES;
    [self.navigationController pushViewController:itemVC animated:NO];
    self.hidesBottomBarWhenPushed = NO;
}