[webview_flutter] Error on iOS: Trying to embed a platform view but the PaintContext does not support embedding

[wilburx9]

I attempted to use the WebView plugin but got this error on iOS:

Trying to embed a platform view but the PaintContext does not support embedding

But this already exists in my project Info.plist:

<key>io.flutter.embedded_views_preview</key>
<true/>

Please is there anything I am missing.

Also, if I remove that from my Info.plist, I get both:

Trying to embed a platform view but the PaintContext does not support embedding

and

Trying to embed a platform view but the PrerollContext does not support embedding

Doctor summary

[✓] Flutter (Channel stable, v1.7.8+hotfix.4, on Mac OS X 10.14.6 18G87, locale en-GB)
[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.1)
[✓] Xcode - develop for iOS and macOS (Xcode 10.3)
[✓] iOS tools - develop for iOS devices
[✓] Android Studio (version 3.5)
[✓] Connected device (2 available)

• No issues found!

[BondarenkoStas]

May be related to #33568

[BondarenkoStas]

@Wilburt please provide some example of the code to reproduce the error

[harshvardhan]

I attempted to use the WebView plugin but got this error on iOS:

Trying to embed a platform view but the PaintContext does not support embedding

But this already exists in my project Info.plist:

<key>io.flutter.embedded_views_preview</key>
<true/>

Please is there anything I am missing.

Also, if I remove that from my Info.plist, I get both:

Trying to embed a platform view but the PaintContext does not support embedding

and

Trying to embed a platform view but the PrerollContext does not support embedding

Doctor summary

[✓] Flutter (Channel stable, v1.7.8+hotfix.4, on Mac OS X 10.14.6 18G87, locale en-GB)
[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.1)
[✓] Xcode - develop for iOS and macOS (Xcode 10.3)
[✓] iOS tools - develop for iOS devices
[✓] Android Studio (version 3.5)
[✓] Connected device (2 available)

• No issues found!

Hi, m getting the same issue. Here is my flutter doctor:

unknown, v1.7.8+hotfix.4, on Mac OS X 10.14.5 18F132, locale en-SG)
 
[✓] Android toolchain - develop for Android devices (Android SDK version 28.0.3)
[✓] Xcode - develop for iOS and macOS (Xcode 10.3)
[✓] iOS tools - develop for iOS devices
[✓] Chrome - develop for the web
[✓] Android Studio (version 3.5)
[!] VS Code (version 1.37.1)
    ✗ Flutter extension not installed; install from
      https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter
[✓] Connected device (4 available)`

I to have io.flutter.embedded_views_preview key in my info.plist! I am getting this when I try to open a webview using the fcm notifications:

[VERBOSE-2:platform_view_layer.cc(22)] Trying to embed a platform view but the PrerollContext does not support embedding
[VERBOSE-2:platform_view_layer.cc(31)] Trying to embed a platform view but the PaintContext does not support embedding

@Wilburt did you by any chance resolve it?

[wilburx9]

@harshvardhan, No I couldn't resolve it. However, I noticed that the issue mysteriously disappears on a release build.

[Kuodster]

To anyone else facing this problem while trying to open a HTTPS link.
Check that the web server is using TLS 1.1+ or else the link was opening for us in an instance of Safari on top of the app with the error above in console. This might help someone save a few hours.

[Pinkal7600]

Yes, I am facing the same issue. Please check below error and device info.

Trying to embed a platform view but the PaintContext does not support embedding
Trying to embed a platform view but the PrerollContext does not support embedding

Device Info:
Device: iPhone 6
OS: iOS 12.0.1

Flutter:
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, v1.12.13+hotfix.7, on Mac OS X 10.15.1 19B88,
locale en-GB)

[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
[✓] Xcode - develop for iOS and macOS (Xcode 11.1)
[✓] Android Studio (version 3.5)
[!] VS Code (version 1.41.1)
✗ Flutter extension not installed; install from
https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter
[✓] Connected device (1 available)