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TabIndicator is not updating while switching one page to another page by tapping in Xamarin.Forms Android. At the same time if we changed to another page by swiping means the tab indicators denotes the page correctly.
Created attachment 21601 [details]
I was not able to reproduce the issue with the sample project I am attaching.
I tested with Forms 2.3.4 and 2.3.5-pre1 on an Android 6.0 device and I observed the tab indicator updating properly even when tapping on the tab instead of swiping.
If you are experiencing this issue with Forms 2.3.4 or newer, please attach a project that reproduces the issue so we can look into this further. Note, we my close this report after thirty days of no response so when providing the requested information set the report status to NEW. Thanks!
Created attachment 21680 [details]
Video footage for the reported bug
We have used third party Xamarin.Forms components in another page(Where indicator not shown) due to licensing issues we were unable to share sample project to you.
For your convenience we have recorded a video footage for the same and attached. From the video you can see that the indicator(white line) will not indicate the page(entitled as Navigation_Drawer)where custom component were place while tapping.
But the same time if we have moved to other page by swiping means the indicators will be in correct place.
So the tab where the indicator does not work has a page with a custom control? What does the custom control do and how are the pages organized? Can you verify if the issue still happens without the custom control?
We have tried with third party calendar and navigation drawer controls both experienced the same problem. And if we removed it works as expected.
If we tapped headers in very fast manners the indicators goes to the correct place.
Any update on this?. Is there any other way to call tab indicator through methods?. Please suggest me on this?
Unfortunately, we’re unable to reproduce this report using just Xamarin.Forms. If this issue is still occurring for you without a custom component, please reopen this issue or when you can attach a reproduction to the bug by starting with a clean Xamarin.Forms project adding just the code necessary to demonstrate the issue even the custom component don't worry about license, we will try to get one.
Here I have attached the error reproducing sample.Run the sample and follow our replications steps to reproduce the issue.
Created attachment 24345 [details]
I have checked the reported issue in Xamarin.forms 2.4.0-pre1 release version and I got nullreference exception on IVisulaelement platforms property. So i couldn't able to check the reported issue "System.ObjectDisposedException". I have also attached the screenshot image for your reference.
Created attachment 24397 [details]
Please check this sample and let me know if you want any details to reproduce this issue. We will wait for your response.
I cannot reproduce a crash or an incorrectly behaving tab indicator on an S8 device with the latest reproduction attachment using the latest 2.5.0 version of Forms. Please file a new issue on GitHub with more information and a new reproduction if this issue is still occurring. Thanks!