iOS滑动全屏实现返回功能

本文实例为大家分享了iOS滑动全屏实现返回功能的具体代码，供大家参考，具体内容如下

系统自带的滑动返回功能，只能滑动边缘返回，而我们希望通过滑动全屏实现返回功能。

定义BaseNavigationController来取代UINavigationController

// BaseNavigationController.h#import <UIKit/UIKit.h>@interface BaseNavigationController : UINavigationController@end// BaseNavigationController.m#import \"BaseNavigationController.h\"@interface BaseNavigationController () <UIGestureRecognizerDelegate>@end@implementation BaseNavigationController#pragma mark - 系统方法+ (void)load{UINavigationBar *navBar = [UINavigationBar appearanceWhenContainedIn:self, nil];// 只要是通过模型设置，都是通过富文本设置// 设置导航条标题 => UINavigationBarNSMutableDictionary *attrs = [NSMutableDictionary dictionary];attrs[NSFontAttributeName] = [UIFont boldSystemFontOfSize:20.0];[navBar setTitleTextAttributes:attrs];// 设置导航条背景图片[navBar setBackgroundImage:[UIImage imageNamed:@\"navigationbarBackgroundWhite\"] forBarMetrics:UIBarMetricsDefault];}- (void)viewDidLoad {[super viewDidLoad];// Do any additional setup after loading the view.// 自己控制返回手势// self.interactivePopGestureRecognizer.delegate = self;// NSLog(@\"self.interactivePopGestureRecognizer : %@\",self.interactivePopGestureRecognizer);// NSLog(@\"self.interactivePopGestureRecognizer.delegate : %@\",self.interactivePopGestureRecognizer.delegate);// 全屏返回手势，而不是边缘返回手势UIPanGestureRecognizer *pan = [[UIPanGestureRecognizer alloc] initWithTarget:self.interactivePopGestureRecognizer.delegate action:@selector(handleNavigationTransition:)];[self.view addGestureRecognizer:pan];// 控制手势什么时候触发，只有非根控制器才需要出发手势pan.delegate = self;// 禁止之前手势self.interactivePopGestureRecognizer.enabled = NO;}/*** self.interactivePopGestureRecognizer : <UIScreenEdgePanGestureRecognizer: 0x7fb57dc23510; state = Possible; delaysTouchesBegan = YES; view = <UILayoutContainerView 0x7fb57dc220e0>; target= <(action=handleNavigationTransition:, target=<_UINavigationInteractiveTransition 0x7fb57dc1c570>)>>* self.interactivePopGestureRecognizer.delegate : <_UINavigationInteractiveTransition: 0x7fb57dc1c570>*/#pragma mark - UIGestureRecognizerDelegate- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch{// 当不是根控制器时才会触发返回手势return (self.childViewControllers.count > 1);}#pragma mark - 重写- (void)pushViewController:(UIViewController *)viewController animated:(BOOL)animated{if (self.childViewControllers.count > 0) { // 代表不是根控制器// 自定义返回按钮覆盖了系统的返回手势viewController.navigationItem.leftBarButtonItem = [UIBarButtonItem setBackButtonItemWithImage:[UIImage imageNamed:@\"navigationButtonReturn\"] highlightedImage:[UIImage imageNamed:@\"navigationButtonReturnClick\"] target:self action:@selector(backClick) title:@\"返回\"];}[super pushViewController:viewController animated:animated];}- (void)backClick{[self popViewControllerAnimated:YES];}@end

UIBarButtonItem+item

// UIBarButtonItem+item.h#import <UIKit/UIKit.h>@interface UIBarButtonItem (item)+ (UIBarButtonItem *)setBarButtonItemWithImage:(UIImage *)image highlightedImage:(UIImage *)highlightedImage target:(id)target action:(SEL)action;+ (UIBarButtonItem *)setBarButtonItemWithImage:(UIImage *)image selectedImage:(UIImage *)selectedImage target:(id)target action:(SEL)action;+ (UIBarButtonItem *)setBackButtonItemWithImage:(UIImage *)image highlightedImage:(UIImage *)highlightedImage target:(id)target action:(SEL)action title:(NSString *)title;@end// UIBarButtonItem+item.m#import \"UIBarButtonItem+item.h\"@implementation UIBarButtonItem (item)+ (UIBarButtonItem *)setBarButtonItemWithImage:(UIImage *)image highlightedImage:(UIImage *)highlightedImage target:(id)target action:(SEL)action{// 1.leftBarButtonItemUIButton *leftButton = [UIButton buttonWithType:UIButtonTypeCustom];[leftButton setImage:image forState:UIControlStateNormal];[leftButton setImage:highlightedImage forState:UIControlStateHighlighted];[leftButton sizeToFit];// 按钮点击事件[leftButton addTarget:target action:action forControlEvents:UIControlEventTouchUpInside];// 由于使用button会使得点击范围增大，所以将button放进view中，然后赋值UIView *leftView = [[UIView alloc] initWithFrame:leftButton.bounds];[leftView addSubview:leftButton];return [[UIBarButtonItem alloc] initWithCustomView:leftView];}+ (UIBarButtonItem *)setBackButtonItemWithImage:(UIImage *)image highlightedImage:(UIImage *)highlightedImage target:(id)target action:(SEL)action title:(NSString *)title{// 设置返回按钮UIButton *backButton = [UIButton buttonWithType:UIButtonTypeCustom];[backButton setTitle:title forState:UIControlStateNormal];[backButton setImage:image forState:UIControlStateNormal];[backButton setImage:highlightedImage forState:UIControlStateHighlighted];[backButton setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];[backButton setTitleColor:[UIColor redColor] forState:UIControlStateHighlighted];[backButton addTarget:target action:action forControlEvents:UIControlEventTouchUpInside];backButton.contentEdgeInsets = UIEdgeInsetsMake(0, -15, 0, 0);[backButton sizeToFit];return [[UIBarButtonItem alloc] initWithCustomView:backButton];}+ (UIBarButtonItem *)setBarButtonItemWithImage:(UIImage *)image selectedImage:(UIImage *)selectedImage target:(id)target action:(SEL)action{// 1.leftBarButtonItemUIButton *leftButton = [UIButton buttonWithType:UIButtonTypeCustom];[leftButton setImage:image forState:UIControlStateNormal];[leftButton setImage:selectedImage forState:UIControlStateSelected];[leftButton sizeToFit];// 按钮点击事件[leftButton addTarget:target action:action forControlEvents:UIControlEventTouchUpInside];// 由于使用button会使得点击范围增大，所以将button放进view中，然后赋值UIView *leftView = [[UIView alloc] initWithFrame:leftButton.bounds];[leftView addSubview:leftButton];return [[UIBarButtonItem alloc] initWithCustomView:leftView];}@end

以上就是本文的全部内容，希望对大家的学习有所帮助