Ecosyste.ms: Awesome

An open API service indexing awesome lists of open source software.

Awesome Lists | Featured Topics | Projects

https://github.com/Mindinventory/flutter_draggable_gridview

This package supports drag & drop widgets inside the GridView.builder for multiplatform. It provides all the properties which are available in Gridview. builder and easy to implement with the few lines of code.
https://github.com/Mindinventory/flutter_draggable_gridview

collection-view draggable draggable-collection flutter flutter-collection-view flutter-draggable-gridview graggable-gridview gridview

Last synced: 4 days ago
JSON representation

This package supports drag & drop widgets inside the GridView.builder for multiplatform. It provides all the properties which are available in Gridview. builder and easy to implement with the few lines of code.

Awesome Lists containing this project

README

        

# flutter_draggable_gridview


flutter_draggable_gridview version


flutter_draggable_gridview Git Stars



















MIT License

This package supports drag & drop widgets inside the GridView.builder for multiplatform. It provides all the properties which are available in Gridview.builder and easy to implement with the few lines of code.

### Draggable GridView.
![Draggable GridView](https://github.com/Mindinventory/flutter_draggable_gridview/blob/main/assets/draggable_gridview.gif)

## Usage

### Example
```dart
DraggableGridViewBuilder(
gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
crossAxisCount: 2,
childAspectRatio: MediaQuery.of(context).size.width / (MediaQuery.of(context).size.height / 3),
),
children: _listOfDraggableGridItem,
isOnlyLongPress: false,
dragCompletion: (List list, int beforeIndex, int afterIndex) {
print( 'onDragAccept: $beforeIndex -> $afterIndex');
},
dragFeedback: (List list, int index) {
return Container(
child: list[index].child,
width: 200,
height: 150,
);
},
dragPlaceHolder: (List list, int index) {
return PlaceHolderWidget(
child: Container(
color: Colors.white,
),
);
},
);
```
### Required parameters

##### gridDelegate:
A delegate that controls the layout of the children within the GridView.

##### children:
This property contains list of [DraggableGridItem] and it is use to show the widget inside the GridView.builder to provide the drag & drop functionality. Also, it contains isDraggable parameter which manages enable/disable the drag & drop functionality.

##### dragCompletion:
This callback provides updated list and old and new indexes.

### Optional parameters

##### isOnlyLongPress:
This property contains ```bool``` value. If this property is ```false``` then it works with simple press draggable or else it works with long press. default value is 'true'.

##### dragFeedback:
With this callback, you have to return a Widget and we will use this widget in feedback. Learn more about feedback from [Draggable](https://api.flutter.dev/flutter/widgets/Draggable-class.html#:~:text=Draggable%20class%20Null%20safety,user's%20finger%20across%20the%20screen) class.

##### dragPlaceHolder:
TWith this callback, you have to return a PlaceHolderWidget and we will use this widget in place holder.

##### dragChildWhenDragging:
With this callback, you have to return a Widget and we will display this widget instead of child when drags are under way. Learn more about childWhenDragging from [Draggable](https://api.flutter.dev/flutter/widgets/Draggable-class.html#:~:text=Draggable%20class%20Null%20safety,user's%20finger%20across%20the%20screen) class.

### Last But Not Least :heart_eyes:
#### You can use all the ```GridView.builder``` properties with ```DraggableGridViewBuilder``` class.

## Note:
The result returns in List. so it can be lost later, you are responsible for storing it somewhere permanent (if needed).

## Guideline for contributors
Contribution towards our repository is always welcome, we request contributors to create a pull request to the develop branch only.

## Guideline to report an issue/feature request
It would be great for us if the reporter can share the below things to understand the root cause of the issue.
- Library version
- Code snippet
- Logs if applicable
- Device specification like (Manufacturer, OS version, etc)
- Screenshot/video with steps to reproduce the issue

# LICENSE!
Flutter Draggable GridView is [MIT-licensed](https://github.com/Mindinventory/flutter_draggable_gridview/blob/main/LICENSE "MIT-licensed").

# Let us know!
We’d be really happy if you send us links to your projects where you use our component. Just send an email to [email protected] And do let us know if you have any questions or suggestion regarding our work.