gf-shimmer.md

description
GF Flutter Shimmer gives a shimmery effect for the child, that can be used to indicate a loading status. GF Shimmer for a better design and user interface.

GF Flutter Shimmer

GF Flutter Shimmer and its Usage:

GFShimmer is a Flutter Shimmer Effect Widget that can be used by giving Linear Gradient for more visual shimmer effect or just by adding Main Color and Secondary Color for basic shimmer effect.

How to Use Flutter Shimmer Effect using GetFlutter

The below code gives a simple Flutter Shimmer effect for children with the main color and secondary color.

import 'package:getwidget/getwidget.dart';

GFShimmer(
  child: emptyBlock,
),

final Widget emptyBlock = Padding(
      padding: const EdgeInsets.symmetric(horizontal: 16),
      child: Row(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Container(
            width: 54,
            height: 46,
            color: Colors.white,
          ),
          const SizedBox(width: 12),
          Expanded(
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: <Widget>[
                Container(
                  width: double.infinity,
                  height: 8,
                  color: Colors.white,
                ),
                const SizedBox(height: 6),
                Container(
                  width: MediaQuery.of(context).size.width * 0.5,
                  height: 8,
                  color: Colors.white,
                ),
                const SizedBox(height: 6),
                Container(
                  width: MediaQuery.of(context).size.width * 0.25,
                  height: 8,
                  color: Colors.white,
                ),
              ],
            ),
          )
        ],
      ),
    );

GF Flutter Shimmer with Gradient

The below code gives a Shimmer effect for children with Linear Gradient. It only takes Liner Gradient when [showGradient] is true.

GFShimmer(
  child: const Text(
    'GF Shimmer',
    style: TextStyle(fontSize: 48, fontWeight: FontWeight.w700),
  ),
  showGradient: true,
  gradient: LinearGradient(
    begin: Alignment.bottomRight,
    end: Alignment.centerLeft,
    stops: const <double>[0, 0.3, 0.6, 0.9, 1],
    colors: [
     Colors.teal.withOpacity(0.1),
     Colors.teal.withOpacity(0.3),
     Colors.teal.withOpacity(0.5),
     Colors.teal.withOpacity(0.7),
     Colors.teal.withOpacity(0.9),
    ],
  ),
),

GF Flutter Shimmer Custom Properties:

The look and feel of GFShimmer can be customized using the below properties:

Name	Description
child	The child of type [Widget] to display shimmer effect.
duration	Controls the speed of the shimmer effect. The default value is 1500 milliseconds.
direction	Controls the direction of the shimmer effect. The default direction is GFShimmerDirection.leftToRight.
gradient	Controls the [child]'s shades of color using Linear gradient. Child [Widget] only takes gradient color, If [showGradient] is true.
showShimmerEffect	Controls animation effect, defaults true state that makes animation active.
showGradient	If true, takes gradient color [gradient] for the [child]'s shimmer effect. Default set to false.
shimmerEffectCount	Controls the animation shimmerEffectCount. The default value is '0', that displays child [Widget]'s shimmer effect forever.
mainColor	Defines the main color of the [child]'s shimmer effect. Child [Widget] takes the main color, only if [showGradient] is false. Default [showGradient] will be false.
secondaryColor	Defines the secondary color of the [child]'s shimmer effect. Child [Widget] takes secondary color, only if [showGradient] is false. Default [showGradient] will be false.