Answers for "exception flutter errors"

7

dart exception

try {
  breedMoreLlamas();
} on OutOfLlamasException {			// A specific exception  
  buyMoreLlamas();
} on Exception catch (e) { 			// Anything else that is an exception
  print('Unknown exception: $e');
} catch (e) {						// No specified type, handles all
  print('Something really unknown: $e');
} finally {							// Always clean up, even if case of exception
  cleanLlamaStalls();
}
Posted by: Guest on May-18-2021
0

http exception flutter

// models/http_exception.dart
class HttpException implements Exception {
  final String message;

  HttpException(this.message);

  @override
  String toString() {
    return message;
  }
}


// in some other file
if (json.decode(response.body)['error'] != null) {
  throw HttpException(json.decode(response.body)['error']['message']);
}

// in ui file
try{

} on HttpException catch(error) {

} catch (error) {
  
}
Posted by: Guest on July-12-2021

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