BackdropFilter doesn't constrain blurred area #16614
Description
Steps to Reproduce
Here is a build() method that results in a fullscreen blur when a blur area of 125.0 units wide was expected.
@override
Widget build(BuildContext context) {
return new BackdropFilter(
filter: new ImageFilter.blur(sigmaX: 3.0, sigmaY:3.0),
child: new Container(
width: 125.0,
height: double.infinity,
color: const Color(0xAA234060),
child: new Padding(
padding: const EdgeInsets.only(top: 16.0),
child: new Column(
children: [
new Expanded(
child: new Icon(
Icons.refresh,
color: Colors.white,
size: 40.0,
),
)]
..addAll(_createDayButtons()),
),
),
),
);
}Also, this behavior was working fine for me a week or so ago. I'm guessing that I upgraded Flutter since then and that's why it's now broken.
This issue occurs in both the iOS simulator and the Android emulator. I haven't tried on a physical device.
This is a possible dup of
#16144
Flutter Doctor
[✓] Flutter (Channel dev, v0.2.11, on Mac OS X 10.12.6 16G29, locale en-US)
• Flutter version 0.2.11 at [redacted]/Libs/flutter
• Framework revision f408bb06f9 (5 days ago), 2018-04-10 14:27:53 -0700
• Engine revision 6474647f52
• Dart version 2.0.0-dev.46.0.flutter-ef926f98f5
[✓] Android toolchain - develop for Android devices (Android SDK 27.0.1)
• Android SDK at [redacted]/Library/Android/sdk
• Android NDK location not configured (optional; useful for native profiling support)
• Platform android-27, build-tools 27.0.1
• Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build 1.8.0_112-release-b06)
• All Android licenses accepted.
[✓] iOS toolchain - develop for iOS devices (Xcode 9.2)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Xcode 9.2, Build version 9C40b
• ios-deploy 1.9.2
• CocoaPods version 1.3.1
[✓] Android Studio
• Android Studio at /Applications/Android Studio 3.0 Preview.app/Contents
✗ Flutter plugin not installed; this adds Flutter specific functionality.
✗ Dart plugin not installed; this adds Dart specific functionality.
• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-915-b01)
[✓] Android Studio
• Android Studio at /Applications/Android Studio 3.1 Preview.app/Contents
✗ Flutter plugin not installed; this adds Flutter specific functionality.
✗ Dart plugin not installed; this adds Dart specific functionality.
• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1012-b01)
[✓] Android Studio (version 2.3)
• Android Studio at /Applications/Android Studio.app/Contents
✗ Flutter plugin not installed; this adds Flutter specific functionality.
✗ Dart plugin not installed; this adds Dart specific functionality.
• Java version OpenJDK Runtime Environment (build 1.8.0_112-release-b06)
[✓] IntelliJ IDEA Community Edition (version 2017.3.4)
• IntelliJ at /Applications/IntelliJ IDEA CE.app
• Flutter plugin version 22.2.2
• Dart plugin version 173.4548.30
[✓] Connected devices (1 available)
• Android SDK built for x86 • emulator-5554 • android-x86 • Android 7.0 (API 24) (emulator)
• No issues found!