runJavaScriptReturningResult method
Runs the given JavaScript in the context of the current page, and returns the result.
The Future completes with an error if a JavaScript error occurred, or if the
type the given expression evaluates to is unsupported. Unsupported values include
certain non-primitive types on iOS, as well as undefined
or null
on iOS 14+.
Implementation
@override
Future<Object> runJavaScriptReturningResult(String javaScript) async {
final String? result = await _webView.evaluateJavascript(javaScript);
if (result == null) {
return '';
} else if (result == 'true') {
return true;
} else if (result == 'false') {
return false;
}
return num.tryParse(result) ?? result;
}