xamarin/Xamarin.Forms

Bug 60966 - Can't Navigate To The Same Page Twice

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#1,897 opened on Feb 16, 2018

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Description

COPIED FROM: https://bugzilla.xamarin.com/show_bug.cgi?id=60966

Laura:

Hi, I've created a sample project that demonstrates a bug with the navigation page. It is impossible to navigate to the same page twice. Why is this? Navigating to a new Page object every time I want to go back to the same page is hurting my application's performance.

https://www.dropbox.com/s/c8aqloj60vpvg7h/NavigationCircleBug.7z?dl=0

Melbourne Developer:

This is a colossal monster bug that leaves us flailing and gasping for air.

How are we supposed to build an app where the pages keep getting recreated again and again? It's chewing memory like you wouldn't believe.

We need to be able to navigate to a page twice so that it can be reused. We know that this is possible because you can hit the back button to go back. So why I can't we just navigate to a page twice or more?

Contributor guide

Research direction
Investigate the navigation stack and page lifecycle to understand why reusing the same page instance is blocked. Check the sample project for reproduction steps.
Tech stack
csharp
Domain
mobile
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
C#Git
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70