在实际项目中,经常需要自定义导航栏实现手势返回,当然还有很多其他的功能,自行参考就好,废话不多说,直接上代码

 创建一对继承于UINavigationController 的文件

.m 中这么写

#import "BaseNVC.h"@interface BaseNVC ()
    
     @property(nullable, nonatomic, readonly) UIGestureRecognizer *interactivePopGesture;@end@implementation BaseNVC- (void)viewDidLoad {    [super viewDidLoad];    // Do any additional setup after loading the view.        self.interactivePopGesture.enabled = NO;      //  self.navigationController.interactivePopGestureRecognizer.delegate = (id)self;    }// 统一设置 bar 的字体大小和颜色+(void)initialize{            UINavigationBar *navTheme = [UINavigationBar appearance];        [navTheme setTitleTextAttributes:@{NSFontAttributeName:FONT_RATIO(17.f), NSForegroundColorAttributeName:[UIColor whiteColor]}];        [navTheme setBarTintColor:NAVIGATION_COLOR];        [navTheme setTintColor:NAVIGATION_COLOR];    }- (void)viewWillAppear:(BOOL)animated{        [super viewWillAppear:animated];        __weak id weakSelf = self;    self.interactivePopGestureRecognizer.delegate = weakSelf;    }- (void)viewDidDisappear:(BOOL)animated{        [super viewDidDisappear:animated];    self.interactivePopGestureRecognizer.delegate = nil;        }/** *  能拦截所有push进来的子控制器 */- (void)pushViewController:(UIViewController *)viewController animated:(BOOL)animated{        if (self.viewControllers.count > 0) { // 如果现在push的不是栈底控制器(最先push进来的那个控制器)                viewController.hidesBottomBarWhenPushed = YES;    viewController.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithImage:[[UIImage imageNamed:@"Nav_back_ic"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal] style:UIBarButtonItemStylePlain target:self action:@selector(back)];            }        [super pushViewController:viewController animated:YES];}- (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer {    BOOL isBack = YES; // 默认为支持右滑反回    if ([self.topViewController isKindOfClass:[BaseNVC class]]) {        if ([self.topViewController respondsToSelector:@selector(gestureRecognizerShouldBegin)]) {            BaseNVC *vc = (BaseNVC *)self.topViewController;            isBack = [vc gestureRecognizerShouldBegin:self.interactivePopGesture];        }    }        return isBack;}- (void)back{    [self popViewControllerAnimated:YES];}- (UIStatusBarStyle)preferredStatusBarStyle{        return UIStatusBarStyleLightContent;}- (void)gestureRecognizerShouldBegin{         [self popViewControllerAnimated:YES];}#pragma mark ---- 加入这行代码 (防止手势返回再进入卡顿现象)---- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch{        return self.childViewControllers.count > 1;    }- (void)didReceiveMemoryWarning {    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.}
    

希望对你有帮助!!!