iOS7之后蘋果導航控制器增加了一個左側邊緣右滑pop的手勢，在非棧底的控制器里面，從左邊右滑之后相當于出棧（pop）樣子。
以下設置均在自定義的UINavigationController里操作
// 默認是YES 設置為NO左側右滑手勢就不可用了self.interactivePopGestureRecognizer.enabled = YES;
也可以通過手勢實現右滑
遵守UIGestureRecognizerDelegate協議，設置代理對象，實現一下代理方法即可：
-(void)viewDidAppear:(BOOL)animated { [super viewDidAppear:animated]; self.navigationController.interactivePopGestureRecognizer.delegate = self;}#pragma mark - UIGestureRecognizerDelegate- (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer{ if (self.viewControllers.count <= 1) { return NO; } return YES;}個人的記憶方法：
backBarButtonItem設置下一個頁面的返回按鈕
leftBarButtonItem設置當前頁面的返回按鈕
項目中我們多數會自定義左側返回按鈕leftBarButtonItem，這個時候就算設置self.interactivePopGestureRecognizer.enabled = YES了或者實現手勢的代理，左邊緣的右滑動手勢依舊會失效，例如如下代碼寫過之后，可以驗證一下，失效了。
- (void)pushViewController:(UIViewController *)viewController animated:(BOOL)animated{ if (self.viewControllers.count > 0) { /* 不是棧底控制器的時候隱藏tabbar */ viewController.hidesBottomBarWhenPushed = YES; // 設置左邊的返回按鈕leftBarButtonItem UIButton *backBtn = [UIButton buttonWithType:UIButtonTypeCustom]; backBtn.frame = CGRectMake(0, 0, 44, 44); backBtn.imageView.contentMode = UIViewContentModeCenter; backBtn.contentEdgeInsets = UIEdgeInsetsMake(0, 0, 0, 34); [backBtn setImage:[UIImage imageNamed:@"rrrr"] forState:UIControlStateNormal]; [backBtn setImage:[UIImage imageNamed:@"rrrr"] forState:UIControlStateHighlighted]; [backBtn addTarget: self action: @selector(back) forControlEvents: UIControlEventTouchUpInside]; UIBarButtonItem *backBtnItem=[[UIBarButtonItem alloc]initWithCustomView:backBtn]; viewController.navigationItem.leftBarButtonItem = backBtnItem;// 此處改為設置backBarButtonItem 右滑手勢可以用，但自定義按鈕不展示！！ } [super pushViewController:viewController animated:animated];}按照如下方式設置backBarButtonItem或leftBarButtonItem，其他不做任何設置，右滑效果可用：
- (void)pushViewController:(UIViewController *)viewController animated:(BOOL)animated{ if (self.viewControllers.count > 0) { /* 不是棧底控制器的時候隱藏tabbar */ viewController.hidesBottomBarWhenPushed = YES; } [self.navigationBar setBackIndicatorImage:[UIImage imageNamed:@"rrrr"]]; [self.navigationBar setBackIndicatorTransitionMaskImage:[UIImage imageNamed:@"rrrr"]]; UIBarButtonItem *backItem = [[UIBarButtonItem alloc] initWithTitle:@"" style:UIBarButtonItemStylePlain target:nil action:nil]; self.navigationItem.backBarButtonItem = backItem; [super pushViewController:viewController animated:animated];}或者
- (void)pushViewController:(UIViewController *)viewController animated:(BOOL)animated{ if (self.viewControllers.count > 0) { /* 不是棧底控制器的時候隱藏tabbar */ viewController.hidesBottomBarWhenPushed = YES; [self.navigationBar setBackIndicatorImage:[UIImage imageNamed:@"rrrr"]]; [self.navigationBar setBackIndicatorTransitionMaskImage:[UIImage imageNamed:@"rrrr"]]; UIBarButtonItem *backItem = [[UIBarButtonItem alloc] initWithTitle:@"" style:UIBarButtonItemStylePlain target:nil action:nil]; self.navigationItem.leftBarButtonItem = backItem; } [super pushViewController:viewController animated:animated];}進過上面的反復測試：在自定義導航欄控制器中backBarButtonItem不能用View視圖方法自定義，而leftBarButtonItem可以。
setBackIndicatorImage和setBackIndicatorTransitionMaskImage無論怎么設置都是只能看到setBackIndicatorImage的圖片，找不到原因！??！
然后嘗試直接在root視圖控制器里面設置返回按鈕backBarButtonItem的自定義view,右滑手勢可用，但是設置leftBarButtonItem就不能使用右滑手勢：
- (void)viewDidLoad { [super viewDidLoad]; // 設置左邊的返回按鈕 UIButton *backBtn = [UIButton buttonWithType:UIButtonTypeCustom]; backBtn.frame = CGRectMake(0, 0, 44, 44); backBtn.imageView.contentMode = UIViewContentModeCenter; backBtn.contentEdgeInsets = UIEdgeInsetsMake(0, 0, 0, 34); [backBtn setImage:[UIImage imageNamed:@"rrrr"] forState:UIControlStateNormal]; [backBtn setImage:[UIImage imageNamed:@"rrrr"] forState:UIControlStateHighlighted]; [backBtn addTarget: self action: @selector(back) forControlEvents: UIControlEventTouchUpInside]; backBtn.backgroundColor = [UIColor redColor]; [self.navigationController.navigationBar setBackIndicatorImage:[UIImage imageNamed:@"rrrr"]]; [self.navigationController.navigationBar setBackIndicatorTransitionMaskImage:[UIImage imageNamed:@"rrrr"]]; UIBarButtonItem *backBtnItem=[[UIBarButtonItem alloc]initWithCustomView:backBtn]; backBtnItem.title = @""; self.navigationItem.backBarButtonItem = backBtnItem; }以上是自己的驗證，希望對大家的學習有所幫助，也希望大家多多支持武林網。
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