When inserting Widget children through NikuWrap method, TypeErrorImpl will be thrown when the list subtype of NikuWrap constructor doesn't match with the subtype of the inserting child. Although _children property in NikuWrap constructor accepts any inherited Widget subtype.

Example

List<NikuColumn> someRandomColumnList = [1, 2, 3, 4].map((e) => NikuColumn(NikuText('$e'))).toList();
Container randomContainer = Container();

// This will throw an error. Expected a value of type 'NikuColumn', but got one of type 'Container'.
return NikuWrap(someRandomColumnList).insert(0, randomContainer);
// This also throw an error.
return NikuWrap(someRandomColumnList).append(randomContainer);

// But this will not.
return NIkuWrap(someRandomColumnList);
// This will not.
List<Widget> widgetList = someRandomColumnList.map((e) => e.build(context)).toList()
return NikuWrap(widgetList); // Build NikuColumn into generic `Widget` type first.
// This also not.
return NikuWrap(widgetList).append(randomContainer);

This might be an issue with dart forcing typecast into the parent subclass with assigning the _children property.

Bug Description

Widget content is being replaced with the last Widget which has the same applied style. This is happening after hot reload.

Video record

Expected

Previously styled widgets are not being replaced with the last Widget which shares the same style.

Example code

class RowStyle {
  static final labelInput = n.Row(const [])
    ..px = 15
    ..pb = 18
    ..pt = 10
    ..gap = 10;
}

class TextStyleNiku {
  static final labelInput = "".n
    ..mx = 15
    ..fontSize = 13;
}

// .....
  n.Column([
    "Jual / Beli:".n
      ..apply = TextStyleNiku.labelInput.copied, // first text style
    // .....
    "Kode saham:".n
      ..apply = TextStyleNiku.labelInput.copied, // last text style
// .....

Environment

sdk: '>=2.18.5 <3.0.0'
niku: ^2.3.3
flutter: 3.3.10

Please help, when i compile the app shows me a error, i use Flutter 3.16.0

hosted/pub.dev/niku-2.4.2/lib/widget/textFormField.dart:877:18: Error: The argument type 'bool?' can't be assigned to the parameter type 'bool' because 'bool?' is nullable and 'bool' isn't. enabled: enabled

Thanks.

Can you give me some Widgets the effect diagram and corresponding code

http://www.layui-vue.com/zh-CN/components/radio

Problem

Can't use Niku with the new Flutter 3.

Solution

Update to 2.3.0-experimental.2

Here's a screenshot of Niku with Flutter 3 running on Apple Silicon MacOS.

Detail:

I have no idea how or why Niku breaks on Flutter 3.
However, Niku 2.3 implemented an internal architecture rewrite known as Tempest Engine which for some reason doesn't break all the thing.

As it's a confirmed candidate for the next version of Niku and I have tested it a lot before publishing it as experimental, you should be able to use it without much breaking change (only 2 breaking changes which shouldn't affect a lot of people).

Also, I'll leave this issue open until the stable release of Niku 2.3.
So, yeah, if you encounter the problem and found a bug, feel free to report it by filing a new issue.

expands method on nikuTextField will throw assertion error when ran because maxLines and minLines property can't be set to null.

When build this

NikuTextField("yoyo")
    .expands()
    .niku()
    .height(200)
    .width(200),

will throws

The following assertion was thrown building Builder(dirty): 
Assertion failed:
!expands || (maxLines == null && minLines == null)
"minLines and maxLines must be null when expands is true."
...

So, The expected property would be,

NikuTextField("yoyo")
    .maxLines(null) // currently not nullable
    .minLines(null) // currently not nullable
    .expands()
    .niku()
    .height(200)
    .width(200),

bug:

• flutter pub get niku error with flutter 3.3.0.

env:

• ✅ flutter 3.3.0
• ✅ niku-2.3.2

The location of the error code:

• ✅ https://github.com/SaltyAom/niku/blob/main/lib/widget/niku.dart#L1048

niku-2.3.2/lib/widget/niku.dart:1048:25

error log:

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/niku-2.3.2/lib/widget/niku.dart:1048:25: Error: The argument type 'BorderRadiusGeometry?' can't be assigned to the parameter type 'BorderRadius?'.
 - 'BorderRadiusGeometry' is from 'package:flutter/src/painting/border_radius.dart' ('../../../../../../.fvm/versions/3.3.0/packages/flutter/lib/src/painting/border_radius.dart').
 - 'BorderRadius' is from 'package:flutter/src/painting/border_radius.dart' ('../../../../../../.fvm/versions/3.3.0/packages/flutter/lib/src/painting/border_radius.dart').
          borderRadius: radius,
                        ^

Command PhaseScriptExecution failed with a nonzero exit code

The argument type 'void Function()?' can't be assigned to the parameter type 'void Function()'.

NikuButton can't be disabled because one can't pass "null" in onPressed.

I got this error after installing Niku and running the application for Linux

My OS: Linux PopOS 22
Flutter 3.3.8
Tools Dart 2.18.4
DevTools 2.15.0