joo6077 / cool_dropdown Goto Github PK

getting a null aware issue after the last flutter upgrade

Warning: Operand of null-aware operation '!' has type 'WidgetsBinding' which excludes null.

First thanks for this module, it completely replaced my other dropdown solutions.

It has LOADS of options so it is somewhat easy to get lost :-). I would like to be able to center my dropdown options so the selected item comes in the middle center of the dropdown.

I guess it is easier to explain it via the screenshot:

Dropdown has 10 options, from 1 to 10. It only shows 5 items at the time (controlled via height option).

I would like for the currently selected item ('5' in this case) to be in the middle of the displayed list rather than at the top. I tried all the 'align' option in the module, but no luck. Is there an option there or something else that I'm missing?

Many thanks!

Hey! Big thx for this package, it's really very customizable but I need more :)

Is it possible to make dropdowns width based on result width?

Current situation is:

And what I want to achieve:

Hi,
Thanks for your package. Its really awesome!!!
When I click on dropdown, again it is showing list with all items with gap between results and dropdown. My requirement is to show entire dropdown need to show in results mainaxis to avoid selected value showing twice.

For Eg : First time I have selected "Apple". It is showing in results. Now if clicks on dropdown, it is showing all list of items along with "Apple" result. My idea is to show drop down over the result with all items from 0th position irrespective of selected value.

Please find attached screenshots for reference :

enhancement
A multiple Selection Option would be great.

I am getting below exception if "isAnimation" as false. If it is true, then working fine.

Senario :
Click on any value, then select dropdown and select value, then click on dropdown..... causes this issue.

[VERBOSE-2:ui_dart_state.cc(209)] Unhandled Exception: 'package:flutter/src/widgets/scroll_activity.dart': Failed assertion: line 623 pos 15: 'duration > Duration.zero': is not true.
package:flutter/…/widgets/scroll_activity.dart:1
#0 _AssertionError._doThrowNew (dart:core-patch/errors_patch.dart:46:39)
#1 _AssertionError._throwNew (dart:core-patch/errors_patch.dart:36:5)
#2 new DrivenScrollActivity
package:flutter/…/widgets/scroll_activity.dart:623
#3 ScrollPositionWithSingleContext.animateTo
package:flutter/…/widgets/scroll_position_with_single_context.dart:181
#4 ScrollController.animateTo
package:flutter/…/widgets/scroll_controller.dart:154
#5 DropdownBodyState.setScrollPosition.
package:cool_dropdown/drop_down_body.dart:298

How can I reset a value which is already selected ?

Hi,

I use GetX to toggle between different app display languages.
I don't see the option to add ".tr" to the end of label variable so that the drop down list that is displayed is as per the selected language.

Regards,
Ameya

I want to add multiple items'(buttons) and upon clicking on them an action I performed like this:

i want to add add and view buttons to this drop down...but with your package it's not possible or maybe too difficult pleas guide.

drop_down_body.dart

My proposal:

  @override
  void dispose() {
    _animationController.dispose();
    _triangleController.dispose();
    _scrollController.dispose();
    for (final anim in _DCController) {
      anim.dispose();
    }
    super.dispose();
  }

I also noticed some possible improvements in typing. If you think this is a good idea, I could make a pull request.

I have a list of currently about 5 items and there is alot of space left blank. I would like it to adapt to the available items and when i add more it increases to a maximum of say 10 whereby i can then scroll

Please remove the following print from line 118.

// 기본값 셋팅
if (defaultValue != null) {
  print('.. $defaultValue');
  this.defaultValue = defaultValue;
} else {
  this.defaultValue = {};
}