Liquid Pull Refresh

Installing

1. Depend on it

Add this to your package's pubspec.yaml file:

dependencies:
  liquid_pull_refresh: <latest-version>

2. Install it

You can install packages from the command line:

with pub:

$ pub get

with Flutter:

$ flutter packages get

3. Import it

Now in your Dart code, you can use:

import 'package:liquid_pull_refresh/liquid_pull_refresh.dart';

Usage

For adding this custom refresh indicator in your flutter app, you have to simply wrap ListView or GridView inside LiquidPullRefresh. Also you have provide the value of onRefresh parameter which is a refresh callback.

Note - LiquidPullRefresh can only be used with a vertical scroll view.

For example:

LiquidPullRefresh(
        backgroundColor: widget.loaderColor,
        // animSpeedFactor: 2.0,
        color: widget.backgroundColor,
        heightLoader: 150,
        // showDroplet: true,
        loaderWidget: widget.loaderWidget,
        springAnimationDurationInMilliseconds: 400,
        showChildOpacityTransition: false,
        key: widget.refreshIndicatorLiquidKey, // key if you want to add
        onRefresh: widget.onRefresh, // refresh callback
        child: widget.childAdapter, // scroll view
      );

If you do not want the opacity transition of child then set showChildOpacityTransition: false. Preview regarding the both form of this widget is follows :-

Documentation

LiquidPullToRefresh Class

Dart attribute	Datatype	Description	Default Value
child	ScrollView	The widget below this widget in the tree.	@required
onRefresh	RefreshCallback	A function that's called when the refreshing of page takes place.	@required
height	double	The distance from the child's top or bottom edge to where the box will settle after the spring effect.	100.0
springAnimationDurationInMilliseconds	int	Duration in milliseconds of springy effect that occurs when we leave dragging after full drag.	1000
borderWidth	double	Border width of progressing circle in Progressing Indicator.	2.0
showChildOpacityTransition	bool	Whether to show child opacity transition or not.	true
color	Color	The progress indicator's foreground color.	ColorScheme.secondary
backgroundColor	Color	The progress indicator's background color.	ThemeData.canvasColor
animSpeedFactor	double	Controls the speed of the animation after refresh. Used to fasten the ending animation.	1.0
heightLoader	double	Height loader.	100.0
showDroplet	bool	Show drop like water, default true	true
loaderWidget	Widget	Show add widget inside loader for image or other widget.	Container()
bottomShadow	bool	Show shadow in bottom liquid.	false
bottomShadowColor	Color	Change color for shadow bottom when true.	grey.withOpacity(0.2)

For help on editing package code, view the flutter documentation.

License

Liquid-Pull-To-Refresh is licensed under MIT license. View license.