UseAsyncState

[Niharoshka]

Hi, I'm a new Flutter user. I'm learning your library.
question about UseAsyncState.
I'm trying to mutate an object, but I can't.
documentation says

uAsyncState.update((value) {
uAsyncState.value = "New value";
});

but when I try to change the value in my code I get an error
There isn't a setter named 'value' in class 'UseAsyncStateBase'.
Try correcting the name to reference an existing setter, or declare the setter.
Please help, thank you. Sorry for my English.

import 'package:flutter_reactter/flutter_reactter.dart';

class MyData {
String item1;
final String item2;
List<String> item3;
Map<String, String> item4;

MyData({ 
required this.item1, 
required this.item2, 
required this.item3, 
required this.item4, 
}); 

factory MyData.fromMap(Map<String, Object> map) { 
return MyData( 
item1: map['Item 1'] as String, 
item2: map['Item 2'] as String, 
item3: List<String>.from(map['Item 3'] as List), 
item4: Map<String, String>.from(map['Item 4'] as Map), 
); 
} 

MyData copyWith({ 
String? item1, 
String? item2, 
List<String>? item3, 
Map<String, String>? item4, 
}) { 
return MyData( 
item1: item1 ?? this.item1, 
item2: item2 ?? this.item2, 
item3: item3 ?? this.item3, 
item4: item4 ?? this.item4, 
); 
}
}

class ControllerHomeScreen { 
final data = UseAsyncState<MyData>( 
asyncFunction 
MyData(item1: '', item2: '', item3: [], item4: {}), 
); 

String get key2 => data.value.item4['key2'] ?? ''; 

set keySet(String value) { 
data.update(() { 
data.value.copyWith(item4: {...data.value.item4, 'key2': value}); 
}); 
data.notify(); 
print(data.value.item4); 
} 

set item3Set(List<String> value) { 
data.update(() { 
return data.value.copyWith(item3: value); 
}); 
} 

set item1Set(String value) { 
data.update(() { 
return data.value.copyWith(item1: value); 
}); 
data.notify(); 
} 

static Future<MyData> asyncFunction() async { 
await Future.delayed(const Duration(seconds: 1)); 
return MyData.fromMap({ 
'Item 1': 'Initial 1', 
'Item 2': 'Initial 2', 
'Item 3': ['One', 'Two'], 
'Item 4': {'key1': 'value1', 'key2': 'value2'}, 
}); 
}
}

[CarLeonDev]

Hi, I'm a new Flutter user. I'm learning your library. question about UseAsyncState. I'm trying to mutate an object, but I can't. documentation says

uAsyncState.update((value) {
uAsyncState.value = "New value";
});

There's a mistake in the document, sorry.

but when I try to change the value in my code I get an error There isn't a setter named 'value' in class 'UseAsyncStateBase'. Try correcting the name to reference an existing setter, or declare the setter. Please help, thank you. Sorry for my English.

That's right, the value of UseAsyncState cannot be set, because the true source is the value returned by the asynchronous function.

On the other hand, I see that in your example you don't call data.resolve() to call asyncFunction. If you need to handle the value, use a UseState to save the value of UseAsyncState and then update it.

[Niharoshka]

Is this package still supported or not?
There have been no updates.

[CarLeonDev]

Yes, of course, I had paused the project for personal reasons, but I back now.
I don't want it to depend entirely on me, so since it's open source, I'd like the community to contribute as well.