83 lines
3.0 KiB
Objective-C
83 lines
3.0 KiB
Objective-C
//
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// BaseNavigationController.m
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// keyBoard
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//
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// Created by Mac on 2025/10/29.
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//
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#import "BaseNavigationController.h"
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@interface BaseNavigationController ()
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@end
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@implementation BaseNavigationController
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- (void)viewDidLoad {
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[super viewDidLoad];
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// 统一返回箭头样式与颜色
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UIImage *backImg = [UIImage imageNamed:@"back_black_icon"];
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if (backImg) {
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self.navigationBar.backIndicatorImage = backImg;
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self.navigationBar.backIndicatorTransitionMaskImage = backImg;
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}
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self.navigationBar.tintColor = [UIColor blackColor]; // 箭头/按钮的着色
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if (@available(iOS 14.0, *)) {
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self.navigationBar.topItem.backButtonDisplayMode = UINavigationItemBackButtonDisplayModeMinimal;
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}
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}
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- (void)pushViewController:(UIViewController *)viewController animated:(BOOL)animated{
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if (self.viewControllers.count > 0) {
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viewController.hidesBottomBarWhenPushed = true;
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UIViewController *prev = self.topViewController;
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if (@available(iOS 14.0, *)) {
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prev.navigationItem.backButtonDisplayMode = UINavigationItemBackButtonDisplayModeMinimal;
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} else {
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prev.navigationItem.backBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"" style:UIBarButtonItemStylePlain target:nil action:nil];
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}
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}
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[super pushViewController:viewController animated:animated];
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}
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/// Push 一个 VC，若栈中已存在相同 class 的 VC，则先移除旧的再 push 新的。
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- (void)kb_pushViewControllerRemovingSameClass:(UIViewController *)viewController
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animated:(BOOL)animated {
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if (!viewController) { return; }
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NSMutableArray<UIViewController *> *stack = self.viewControllers.mutableCopy;
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// 移除同 class 的旧 VC（通常只有一个，这里按需移除第一个）
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UIViewController *toRemove = nil;
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for (UIViewController *vc in stack) {
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if ([vc isKindOfClass:[viewController class]]) {
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toRemove = vc;
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break;
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}
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}
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if (toRemove) {
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[stack removeObject:toRemove];
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}
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// 追加新 VC
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[stack addObject:viewController];
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// 对前一个 VC 做统一的返回按钮样式处理，与 pushViewController: 保持一致
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if (stack.count > 1) {
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viewController.hidesBottomBarWhenPushed = YES;
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UIViewController *prev = stack[stack.count - 2];
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if (@available(iOS 14.0, *)) {
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prev.navigationItem.backButtonDisplayMode = UINavigationItemBackButtonDisplayModeMinimal;
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} else {
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prev.navigationItem.backBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@""
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style:UIBarButtonItemStylePlain
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target:nil
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action:nil];
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}
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}
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[self setViewControllers:stack animated:animated];
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}
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@end
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