Move to TabBar item with data using button

Question

Hello I want to select tabbar item with some data using button on uiviewController , i can move to another tabbar using this but in this method i can't move data

let second = self.tabBarController?.viewControllers?[2] as? MyAccountViewController
second?.testValue = "Test Value"
self.tabBarController?.selectedIndex = 2

Crash Report

Could not cast value of type 'UINavigationController' (0x2496e5280) to 'xxxxxx.MyAccountViewController' (0x1016cd4c8). 2019-03-09 08:07:34.281652+0500 xxxxx[390:17926] Could not cast value of type 'UINavigationController' (0x2496e5280) to 'xxxxxx.MyAccountViewController' (0x1016cd4c8).

Shehata Gamal · Accepted Answer · 2019-03-09T03:10:29.763

0

You need verify that it's the vc with

let nav = self.tabBarController!.viewControllers![2] as! UINavigationController 
let second = nav.viewControllers!.first as! MyAccountViewController 
second.testValue = "Test Value"
self.tabBarController?.selectedIndex = 2

If the destination vc is not active ( first time opended ) then print the value inside viewDidLoad if it's active then print it inside viewWillAppear / viewDidAppear

edited Mar 09 '19 at 03:10

answered Mar 09 '19 at 02:21

Shehata Gamal

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yes i did in viewWillAppear but its not updating value – John Li Mar 09 '19 at 02:25
used the guard ? as your code may pass without setting the value for a reason like the destination vc class name is not it – Shehata Gamal Mar 09 '19 at 02:26
using guard nothing happens not moving , my viewcontroller on index 2 mean third tab is myaccountviewcontroller – John Li Mar 09 '19 at 02:32
if so then the guard won't return make sure that it's really `MyAccountViewController ` assigned the class in IB ? – Shehata Gamal Mar 09 '19 at 02:35
its assigned from storyboard – John Li Mar 09 '19 at 02:42
Hey Bro It Works Wow, how did u do this ? – John Li Mar 09 '19 at 03:49

Move to TabBar item with data using button

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