https://github.com/apgapg/flutter_sample_key

Medium Article
https://github.com/apgapg/flutter_sample_key

dart flutter key objectkey uniquekey valuekey

Last synced: 9 months ago
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Medium Article

• Host: GitHub
• URL: https://github.com/apgapg/flutter_sample_key
• Owner: apgapg
• Created: 2019-07-06T08:05:56.000Z (almost 7 years ago)
• Default Branch: master
• Last Pushed: 2020-05-03T05:08:20.000Z (about 6 years ago)
• Last Synced: 2025-07-23T17:50:15.075Z (10 months ago)
• Topics: dart, flutter, key, objectkey, uniquekey, valuekey
• Language: Dart
• Homepage: https://medium.com/@ayushpguptaapg/using-keys-in-flutter-1c5fb586b2a5
• Size: 302 KB
• Stars: 11
• Watchers: 0
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md

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README

          
# flutter_sample_key

A sample on how to use keys in flutter. Full article [here](https://medium.com/@ayushpguptaapg/using-keys-in-flutter-1c5fb586b2a5)

### PROBLEM STATEMENT:

Suppose we have two simple TextFields (wrapped as a stateful widget named MyTextField) in a Column and let’s say you hide the first of two on FAB(Floating Action Button) press. The first one should hide and second one should take its place.

### ITERATION 1: Not using keys:



### ITERATION 2: Using ValueKey:



### Experiment: Using UniqueKey: