efb7bf434f
Samsung's Korean keyboard has a bug where it always attempts to combine characters based on its internal state, ignoring if and when the cursor is moved programmatically. EG typing "ㄴㅇ" and then moving the cursor back to the front of the text and typing "ㄴ" again would result in "ㄴㅇㄴ", not "ㄴㄴㅇ". Fully restarting the IMM works around this because it flushes the keyboard's internal state and stops it from trying to incorrectly combine characters. However this also has some negative performance implications, so we only apply the workaround on Samsung devices set to use Korean input. This also effectively disables the feature on Samsung keyboards that allowed users to re-open a composing region for previously typed characters. See https://github.com/flutter/flutter/issues/29341#issuecomment-531283508. Fixes flutter/flutter#29341.
Flutter Engine
Flutter is Google's mobile app SDK for crafting high-quality native interfaces on iOS and Android in record time. Flutter works with existing code, is used by developers and organizations around the world, and is free and open source.
The Flutter Engine is a portable runtime for hosting Flutter applications. It implements Flutter's core libraries, including animation and graphics, file and network I/O, accessibility support, plugin architecture, and a Dart runtime and compile toolchain. Most developers will interact with Flutter via the Flutter Framework, which provides a modern, reactive framework, and a rich set of platform, layout and foundation widgets.
If you are new to Flutter, then you will find more general information on the Flutter project, including tutorials and samples, on our Web site at Flutter.dev. For specific information about Flutter's APIs, consider our API reference which can be found at the docs.flutter.dev.
Flutter is a fully open source project, and we welcome contributions. Information on how to get started can be found at our contributor guide.