Flutter page closes when I tap on the text field

[FINAL UPDATE - Problem Solved]

A dear friend of mine, Abhijith took a look at the code following the inputs from Suat and noted that I have been using a UniqueKey() constructor in my main function.

This made it so that each time there was a State change and the build method was called, the key associated with the basic app kept changing, which caused the whole app to rebuild from the home screen.

Simply removing the key parameter, or saving the UniqueKey() in a key variable as shown below, before passing it into the key parameter will also do the trick.

That being said, I'm marking this thread as closed and I thank everyone for all your time and effort 🙏🏽. Cheers!

[Original Post]

I have been working on a Flutter project for my college work. In my project there is a create project page, where the user is supposed to enter some details including the project name to proceed with the creation. But whenever I try to enter some text using a TextField, the application takes me back to the home screen. Please see the following demonstration for reference

Demonstration

Container(
                margin: EdgeInsets.only(
                  left: 24 / 360 * ScreenConstants.screenWidth,
                  top: 25 / 360 * ScreenConstants.screenWidth,
                ),
                alignment: Alignment.centerLeft,
                child: Text(
                  "Project Name",
                  style: Theme.of(context).textTheme.titleMedium,
                  textAlign: TextAlign.left,
                ),
              ),
              InkWell(
                onTap: () {
                  _projectNameFocusNode.requestFocus();
                },
                child: TextFormField(
                  focusNode: _projectNameFocusNode,
                  controller: _projectNameController,
                  // Rest of your TextFormField configuration
                ),
              )
            ],

This is the code in question. I have tried using InkWell as above, GestureDetector, and TextField by itself. But whatever I do, the error keeps repeating itself.

Can you guys help me figure out what's going on here? Thanks a lot!

[Edit 1]
This is the logs I get as the control flows outside the page

I/ImeTracker( 9719): com.example.kaptur_alpha_v1:31b874ef: onRequestShow at ORIGIN_CLIENT_SHOW_SOFT_INPUT reason SHOW_SOFT_INPUT
D/InputMethodManager( 9719): showSoftInput() view=io.flutter.embedding.android.FlutterView{a6c6e42 VFE...... .F...... 0,0-1080,2154 #1 aid=1073741824} flags=0 reason=SHOW_SOFT_INPUT
D/InsetsController( 9719): show(ime(), fromIme=true)
D/EGL_emulation( 9719): app_time_stats: avg=42.17ms min=29.73ms max=57.70ms count=24
D/EGL_emulation( 9719): app_time_stats: avg=468.49ms min=1.20ms max=13982.47ms count=30

[Edit 2]

Including the screenshots of the widget tree during different states.

[Edit 3]

Suat's observation was spot on. The app rebuilds itself for some reason after the text field is clicked. A print statement included in the main method confirms that the app is indeed rebuilding and not restarting.

This image shows the testing code included and the corresponding output. I believe the output suggests that the application rebuilds itself four times.

Remove the UniqueKey() in ChangeNotifierProvider. It will lead to the rebuilding of the Widget.

I was facing a similar issue then I checked Flutter Inspector and saw that I was accidentally pushing the previous page over and over again, which makes you think that the current page is popping. I suggest you to check your navigation stack for a similar bug.
I am adding a sample screenshot below. Here MyHomePage is accidentally being pushed many times.