iOS开发之点击tabBarItem进行Push一个页面

使用场景:

实现底部Tabbar两个TabBarItem,点击第二个跳转push到个人信息页面:

实现步骤:

• 首先设置UITabBarController的代理为appdelegate如下：myTabBar.delegate = self;

• 然后在interface后面写上代理<UITabBarControllerDelegate>

• 实现代理里面的- (BOOL)tabBarController:(UITabBarController *)tabBarController shouldSelectViewController:(UIViewController *)viewController方法即可

代码如下:

#pragma mark - 跳转对应的页面

-(void)jumpToMainVC:(NSString *)messageBadgeNumStr {
    
    self.tabBarController = [[UITabBarController alloc] init];
    self.tabBarController.delegate = self;
    HomeViewController *homeVC = [[HomeViewController alloc] init];
    self.tabBarController.viewControllers = @[[self navigationControllerWithFirstViewController:homeVC], [UIViewController new]];
    NSArray *titles = @[@"首页", @"我的"];
    NSArray *images = @[@"home_tab_home", @"home_tab_mine"];
    [self.tabBarController.tabBar.items enumerateObjectsUsingBlock:^(UITabBarItem *item, NSUInteger idx, BOOL *stop) {
        [item setTitle:titles[idx]];
        [item setImage:[[UIImage imageNamed:images[idx]] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];
        [item setSelectedImage:[[UIImage imageNamed:[images[idx] stringByAppendingString:@"pre"]] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];
        
        CGFloat verticalOffSet = 2;
        UIEdgeInsets edgeInsets = item.imageInsets;
        edgeInsets.top = -verticalOffSet;
        edgeInsets.bottom = verticalOffSet;
        item.imageInsets = edgeInsets;
        [item setTitlePositionAdjustment:UIOffsetMake(0, -verticalOffSet)];
        item.tag = idx;
    }];
    self.window.rootViewController = self.tabBarController;
}

实现跳转代理:

#pragma mark - UITabBarControllerDelegate

- (BOOL)tabBarController:(UITabBarController *)tabBarController shouldSelectViewController:(UIViewController *)viewController {
    if (viewController.tabBarItem.tag == 1) {
        UserInfoViewController *userInfoVC = [[UserInfoViewController alloc] init];
        UINavigationController *nav = self.tabBarController.selectedViewController;
        [nav pushViewController:userInfoVC animated:YES];
        return NO;
    }
    return YES;
}