Merge pull request #531 from AffanShaikhsurab/patch-1

Update platform_specific_instructions.md: Add 'Why' explanations for better understanding
This commit is contained in:
Ashita Prasad
2025-01-14 09:51:58 +05:30
committed by GitHub

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@ -39,8 +39,36 @@ android {
}
```
## Web
For more information on multidex support, you can refer to the Android developer guide on [Configuring Multidex](https://developer.android.com/studio/build/multidex).
Running it on web requires the following modification in the local cached code of `printing` package.
## Web
If you're building a Flutter app for the web, you may encounter a build error like:
```
Launching lib/main.dart on Chrome in debug mode...
../../../.pub-cache/hosted/pub.dev/printing-5.13.4/lib/printing_web.dart:218:16: Error:
A value of type 'JSString' can't be assigned to a variable of type 'String'.
.toJS;
^
Failed to compile application.
```
This happens because `.toJS` is no longer required for converting Dart strings to JavaScript strings in recent Dart versions.
**Fix:**
Update the `printing_web.dart` file in the cached `printing` package by removing `.toJS` as done in the PR [here](https://github.com/DavBfr/dart_pdf/pull/1739/files)
```dart
script.innerHTML =
'''function ${_frameId}_print(){var f=document.getElementById('$_frameId');f.focus();f.contentWindow.print();}'''
.toJS;
```
Change it to:
```dart
script.innerHTML =
'''function ${_frameId}_print(){var f=document.getElementById('$_frameId');f.focus();f.contentWindow.print();}''';
```
Read more about it here - https://github.com/DavBfr/dart_pdf/issues/1791