CustomScrollView and TextField issue

[jogboms]

Steps to Reproduce

So having a TextField within a CustomScrollView causes the entire view to scroll to the top once the keyboard comes up.

Scaffold(
	body: CustomScrollView(
		slivers: <Widget>[
			SliverList(
				delegate: SliverChildListDelegate(
					<Widget>[
						Align(
							alignment: Alignment.topLeft,
							child: FlutterLogo(size: 64.0),
						),
						ListTile(
							title: Text('Some Text'),
						),
						ListTile(),
					],
				),
			),
			SliverAppBar(
				backgroundColor: Theme.of(context).scaffoldBackgroundColor,
				elevation: 0.0,
				automaticallyImplyLeading: false,
				pinned: true,
				floating: false,
				title: TextField(
					style: Theme.of(context).primaryTextTheme.title,
					decoration: InputDecoration(
						border: OutlineInputBorder(
								borderRadius: BorderRadius.all(Radius.circular(8.0))),
						suffixIcon: Icon(Icons.search),
						hintText: '검색',
					),
				),
			),
			SliverList(
				delegate: SliverChildListDelegate(List.generate(
						100,
						(i) => ListTile(
									title: Text('Scroll'),
								)).toList()),
			),
		],
	),
);

Logs

[✓] Flutter (Channel master, v1.1.3-pre.11, on Mac OS X 10.14.2 18C54, locale en-NG)
    • Flutter version 1.1.3-pre.11 at /Users/apple/Desktop/flutter
    • Framework revision c5251cdc02 (4 days ago), 2018-12-14 16:09:17 -0800
    • Engine revision 101b27da7a
    • Dart version 2.1.0 (build 2.1.0-dev.9.4 f9ebf21297)

[✓] Android toolchain - develop for Android devices (Android SDK 28.0.3)
    • Android SDK at /Users/apple/Library/Android/sdk
    • Android NDK at /Users/apple/Library/Android/sdk/ndk-bundle
    • Platform android-28, build-tools 28.0.3
    • ANDROID_HOME = /Users/apple/Library/Android/sdk
    • Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1024-b01)
    • All Android licenses accepted.

[✓] iOS toolchain - develop for iOS devices (Xcode 10.1)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Xcode 10.1, Build version 10B61
    • ios-deploy 1.9.4
    • CocoaPods version 1.5.3

[✓] Android Studio (version 3.1)
    • Android Studio at /Applications/Android Studio.app/Contents
    • Flutter plugin version 24.2.1
    • Dart plugin version 173.4700
    • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1024-b01)

[✓] VS Code (version 1.30.0)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 2.21.1

[✓] Connected device (1 available)
    • SM G955F • ce041714616c00130c • android-arm64 • Android 7.0 (API 24)

• No issues found!

[zoechi]

I think this is a support question better asked on StackOverflow.

Don't nest Scaffold within another Scaffold.
Check https://docs.flutter.io/flutter/material/Scaffold/resizeToAvoidBottomPadding.html

If you think this actually is a bug, please post minimal runnable reproduction
as a single file so that we can just copy your code into lib/main.dart of a new project and run to reproduce (incl main() {..}.

[jogboms]

@zoechi i created a gist repro here

[zoechi]

What exactly do you mean with the "entire view"?
I tried to reproduce and only the content of the lower SliverList scrolls up.
What is the desired behavior?

[jogboms]

Yes, @zoechi. I was actually referring to the list. But is this supposed to be the intended behaviour? It doesn't feel that way to me.

[zoechi]

I personally would also expect it to not scroll.
I just wanted to be sure what the issue is about.

I find the title confusing because the issue is not related to TextField at all,
except that the available space shrinks when the TextField gets the focus because the keyboard shows up.

[ahmetayrnc]

I am having the same problem when the TextField gets the focus, it scrolls the entire scroll view to the top.

[shamnex]

Having the same issue. Did anyone manage to solve this?