klx_teacher/KulexiuForTeacher/KulexiuForTeacher/Common/Base/CustomNavViewController.m

//
//  CustomNavViewController.m
//  KulexiuForTeacher
//
//  Created by Kyle on 2022/3/17.
//

#import "CustomNavViewController.h"
#import "UIImage+Color.h"

@interface CustomNavViewController ()<UIGestureRecognizerDelegate, UINavigationControllerDelegate>

@end

@implementation CustomNavViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    KSWeakSelf(weakSelf);
    if ([self respondsToSelector:@selector(interactivePopGestureRecognizer)]) {
        self.interactivePopGestureRecognizer.delegate = weakSelf;
        self.delegate = weakSelf;
        if (@available(iOS 13.0, *)) {
            UINavigationBarAppearance *appearance = [[UINavigationBarAppearance alloc] init];
            [appearance configureWithOpaqueBackground];
            // 去掉半透明效果
            
            appearance.backgroundEffect = nil;
            // 去除导航栏阴影（如果不设置clear，导航栏底下会有一条阴影线）
            appearance.shadowImage = [UIImage imageWithColor:[UIColor clearColor]];
            appearance.backgroundColor = HexRGB(0xf6f8f9);
            [appearance setTitleTextAttributes:@{NSForegroundColorAttributeName:[UIColor blackColor],NSFontAttributeName : [UIFont boldSystemFontOfSize:18]}];
            self.navigationBar.standardAppearance = appearance;
            self.navigationBar.scrollEdgeAppearance = appearance;
        }
        else {
            [[UINavigationBar appearance] setShadowImage:[[UIImage alloc] init]];
            UINavigationBar *navBar = [UINavigationBar appearance];
            [navBar setTitleTextAttributes:@{NSForegroundColorAttributeName:[UIColor blackColor],NSFontAttributeName : [UIFont boldSystemFontOfSize:18]}];
            [navBar setBarTintColor:HexRGB(0xf6f8f9)];
        }
        self.view.backgroundColor = HexRGB(0xf6f8f9);
    }
}

- (UIStatusBarStyle)preferredStatusBarStyle {
    return UIStatusBarStyleDefault;
}

#pragma mark - UIGestureRecognizerDelegate

- (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer {
    if (self.viewControllers.count <= 1) {
        return NO;
    }
    return YES;
}
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer {
    return YES;
}

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldBeRequiredToFailByGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer {
    if ([self.viewControllers indexOfObject:self] == 0) {
        return YES;
    }
    return [gestureRecognizer isKindOfClass:[UIScreenEdgePanGestureRecognizer class]];
}

#pragma mark - Super class

- (void)pushViewController:(UIViewController *)viewController animated:(BOOL)animated {
    if ([self respondsToSelector:@selector(interactivePopGestureRecognizer)]){
        self.interactivePopGestureRecognizer.enabled = NO;
    }
    //如果现在push的不是栈顶控制器，那么久隐藏tabbar工具条
    if (self.childViewControllers.count >= 1) {
        viewController.hidesBottomBarWhenPushed = YES;
    }
    [super pushViewController:viewController animated:animated];
}

- (NSArray<__kindof UIViewController *> *)popToRootViewControllerAnimated:(BOOL)animated {
    if (self.viewControllers.count > 1) {
        self.topViewController.hidesBottomBarWhenPushed = NO;
    }
    NSArray<__kindof UIViewController *> *viewControllers = [super popToRootViewControllerAnimated:animated];
    // self.viewControllers has two items here on iOS14
    return viewControllers;
}

#pragma mark - UINavigationControllerDelegate

- (void)navigationController:(UINavigationController *)navigationController didShowViewController:(UIViewController *)viewController animated:(BOOL)animated {
    if ([self respondsToSelector:@selector(interactivePopGestureRecognizer)] && ![viewController isKindOfClass:NSClassFromString(@"KSBaseWKWebViewController")] && ![viewController isKindOfClass:NSClassFromString(@"FirstSettingViewController")] && ![viewController isKindOfClass:NSClassFromString(@"TXLiveRoomViewController")] && ![viewController isKindOfClass:NSClassFromString(@"TXClassroomViewController")]) {
        self.interactivePopGestureRecognizer.enabled = YES;
    }
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    // Get the new view controller using [segue destinationViewController].
    // Pass the selected object to the new view controller.
}
*/

@end