1、 隱藏tableViewCell的分割線：
tableView.separatorStyle = UITableViewCellSeparatorStyleNone;

2、實現右側的小灰色箭頭 只要將cell的accessoryType屬性設置為 cell.accessoryType=UITableViewCellAccessoryDisclosureIndicator;

//關閉tableView選中的動畫
[tableView deselectRowAtIndexPath:indexPath animated:NO];

//關閉tableView頂部的cell冒出來的白色空隙
self.automaticallyAdjustsScrollViewInsets = NO

 開啟手勢返回
 self.navigationController.interactivePopGestureRecognizer.delegate = (id)self;

3、毛玻璃效果(ios8.0以后的版本)

UIVisualEffectView *visualEffectView = [[UIVisualEffectView alloc] initWithEffect:[UIBlurEffect effectWithStyle:UIBlurEffectStyleLight]];
    visualEffectView.frame = CGRectMake(0, 0, 320, 180);
    visualEffectView.alpha = 1.0;

4、整個項目iOS手勢(滑動)返回
1>、iOS手勢(滑動)返回首先在根控制器下 遵守UIGestureRecognizerDelegate協議
2>在跟控制器下寫入以下代碼，輕松開啟手勢返回

- (void)viewWillDisappear:(BOOL)animated {
    [super viewWillDisappear:animated];
    //代理置空，否則會閃退
    if ([self.navigationController       respondsToSelector:@selector(interactivePopGestureRecognizer)]) {
        self.navigationController.interactivePopGestureRecognizer.delegate = nil;
        
    }
}
- (void)viewDidAppear:(BOOL)animated {
    [super viewDidAppear:animated];
    //開啟iOS7的滑動返回效果
    if ([self.navigationController   respondsToSelector:@selector(interactivePopGestureRecognizer)]) {
        //只有在二級頁面生效
        if ([self.navigationController.viewControllers count] == 2) {
            self.navigationController.interactivePopGestureRecognizer.delegate = self;
        }
    }
}

5、自定義導航欄返回按鈕

 UIBarButtonItem *leftBarBtn = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"返回-1"] style:UIBarButtonItemStylePlain target:self action:@selector(goBack)];
    self.navigationItem.leftBarButtonItem = leftBarBtn;

6、導航欄全透明，無黑邊

 //    導航欄變為透明
    [self.navigationController.navigationBar setBackgroundImage:[UIImage new] forBarMetrics:0];
    //    讓黑線消失的方法
    self.navigationController.navigationBar.shadowImage=[UIImage new];