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Description:

neopop

NeoPOP #
NeoPOP is CRED's inbuilt library for using NeoPOP components in your app.
What really is NeoPOP? #
NeoPOP was created with one simple goal; to create the next generation of a beautiful, affirmative design system. NeoPOP stays true to everything that design at CRED stands for.
NeoPOP is built for Android, iOS, Flutter and Web

Installation #
Add neopop as a dependency in your pubspec.yaml file.
dependencies:
neopop: ^1.0.2
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NeoPopButton #

NeoPopButton render 5 surfaces, top, left, right, bottom and center.
NeoPopButton widget gives you mutliple configs that you can use for your widget.
Elevated #

NeoPopButton(
color: Colors.white,
onTapUp: () => HapticFeedback.vibrate(),
onTapDown: () => HapticFeedback.vibrate(),
child: Padding(
padding: EdgeInsets.symmetric(horizontal: 20, vertical: 15),
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Text("Pay now"),
],
),
),
),
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Flat #

By specifying the buttonPosition as Position.center, NeoPOP will compute right and bottom surface's color according to color.
Top and left surface's color is computed w.r.t parentColor and grandparentColor
NeoPopButton(
color: Colors.white,
onTapUp: () => HapticFeedback.vibrate(),
onTapDown: () => HapticFeedback.vibrate(),
parentColor: Colors.transparent,
buttonPosition: Position.center,
child: Padding(
padding: const EdgeInsets.symmetric(horizontal: 20, vertical: 15),
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: const [
Text("Pay Now"),
],
),
),
),
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Shimmer #
const NeoPopShimmer(
shimmerColor: Colors.yellow,
child: Padding(
padding: const EdgeInsets.symmetric(horizontal: 100, vertical: 15),
child: Text("Hello"),
),
),
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Flat Strokes #

To add border on a flat button, add border
NeoPopButton(
color: const Color.fromRGBO(0, 0, 0, 1),
buttonPosition: Position.center,
onTapUp: () {},
border: const Border.fromBorderSide(
BorderSide(color: kBorderColorWhite, width: kButtonBorderWidth),
),
child: Padding(
padding: const EdgeInsets.symmetric(horizontal: 20, vertical: 15),
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: const [
Text("Pay Now", style: TextStyle(color: Colors.white)),
],
),
),
),
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Elevated Strokes #

NeoPopButton(
color: kSecondaryButtonLightColor,
bottomShadowColor: ColorUtils.getVerticalShadow(kBorderColorGreen).toColor(),
rightShadowColor: ColorUtils.getHorizontalShadow(kBorderColorGreen).toColor(),
animationDuration: kButtonAnimationDuration,
depth: kButtonDepth,
onTapUp: () {},
border: Border.all(
color: kBorderColorGreen,
width: kButtonBorderWidth,
),
child: Padding(
padding: const EdgeInsets.symmetric(horizontal: 20, vertical: 15),
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: const [
Text("Scan & Pay", style: TextStyle(color: Colors.white)),
],
),
),
),
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Adjacent Buttons #

Vertically Aligned Buttons #
Column(
mainAxisSize: MainAxisSize.min,
children: [
NeoPopButton(
color: kSecondaryButtonLightColor,
bottomShadowColor: kShadowColorDarkGreen,
rightShadowColor: kShadowColorGreen,
buttonPosition: Position.fullBottom,
onTapUp: () {},
border: Border.all(
color: kBorderColorGreen, width: kButtonBorderWidth,
),
child: const Padding(
padding: EdgeInsets.symmetric(horizontal: 8.0, vertical: 15.0),
child: Text(
"Button",
style: TextStyle(color: Colors.white),
),
),
),
NeoPopButton(
color: kPrimaryButtonColor,
buttonPosition: Position.fullBottom,
onTapUp: () {},
child: const Padding(
padding: EdgeInsets.symmetric(horizontal: 8.0, vertical: 15.0),
child: Text("Button"),
),
),
],
),
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Horizontally Aligned Buttons #
Row(
mainAxisSize: MainAxisSize.min,
children: [
Expanded(
child: NeoPopButton(
color: kPrimaryButtonColor,
buttonPosition: Position.fullBottom,
depth: kButtonDepth,
onTapUp: () {},
child: const Center(
child: Padding(
padding: EdgeInsets.symmetric(
horizontal: 8.0, vertical: 15.0),
child: Text("Button"),
),
),
),
),
Expanded(
child: NeoPopButton(
color: kSecondaryButtonLightColor,
bottomShadowColor: kShadowColorDarkGreen,
rightShadowColor: kShadowColorGreen,
buttonPosition: Position.fullBottom,
depth: kButtonDepth,
onTapUp: () {},
border: Border.all(
color: kBorderColorGreen, width: kButtonBorderWidth,
),
child: const Center(
child: Padding(
padding: EdgeInsets.symmetric( horizontal: 8.0, vertical: 15.0),
child: Text(
"Button",
style: TextStyle(color: Colors.white),
),
),
),
),
),
],
),
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NeoPopButton Attributes #

Attribute
Type
Description

child
Widget
The child of button widget

color
Color
Color of the button

depth
double
The depth of the button if it is elevated

onTapUp
VoidCallback?
Callback triggered when the forward & reverse button animation is finished

onTapDown
VoidCallback?
Callback triggered as soon as the user clicks the enabled button

onLongPress
VoidCallback?
Callback triggered when user has long pressed the cta

disabledColor
Color
Color of the button when it is disabled

parentColor
Color
Button's immediate ancestor's color

grandparentColor
Color
Button's second level ancestor's color

buttonPosition
Position
The position of button in reference to parent view. default - Position.fullBottom

animationDuration
Duration
Animation duration of the button click. default - const Duration(milliseconds: 50)

forwardDuration
Duration?
If you want different forward duration for button click, use forwardDuration

reverseDuration
Duration?
If you want different reverse duration for button click, use reverseDuration

border
Border?
The border to be painted around the button

enabled
bool
If set to false, the button will be disabled. default - true

shadowColor
Color?
The base color of the shadow. The shadow colors will be derived from this

rightShadowColor
Color?
The color of the right shadow.

leftShadowColor
Color?
The color of the left shadow.

topShadowColor
Color?
The color of the top shadow.

bottomShadowColor
Color?
The color of the bottom shadow.

NeoPopTiltedButton #

Non Floating #

NeoPopTiltedButton(
color: kPrimaryButtonColor,
onTapUp: () {},
child: Padding(
padding: const EdgeInsets.symmetric(
horizontal: 80.0,
vertical: 15,
),
child: SvgPicture.asset('assets/svg/cta_text_view.svg'),
),
),
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Floating #

NeoPopTiltedButton(
isFloating: true,
onTapUp: () => HapticFeedback.vibrate(),
onTapDown: () => HapticFeedback.vibrate(),
decoration: const NeoPopTiltedButtonDecoration(
color: kPopYellowColor,
plunkColor: kPlunkColorYellow,
shadowColor: kTiltedButtonShadowColor,
),
child: Padding(
padding: const EdgeInsets.symmetric(
horizontal: 70.0,
vertical: 15,
),
child: SvgPicture.asset('assets/svg/cta_text_play_now.svg'),
),
),
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Strokes #

NeoPopTiltedButton(
isFloating: true,
onTapUp: () {},
decoration: const NeoPopTiltedButtonDecoration(
color: Color(0xFF0D0D0D),
plunkColor: Color(0xFF3F6915),
shadowColor: Colors.black,
border: Border.fromBorderSide(
BorderSide(color: Color(0xFF8DD04A), width: 1),
),
),
child: const Padding(
padding: EdgeInsets.symmetric(horizontal: 70.0, vertical: 15),
child: Text('Play Now', style: TextStyle(color: Colors.white)),
),
),
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Shimmer #

NeoPopTiltedButton(
isFloating: true,
onTapUp: () {},
decoration: const NeoPopTiltedButtonDecoration(
color: Color.fromRGBO(255, 235, 52, 1),
plunkColor: Color.fromRGBO(255, 235, 52, 1),
shadowColor: Color.fromRGBO(36, 36, 36, 1),
showShimmer: true,
),
child: const Padding(
padding: EdgeInsets.symmetric(
horizontal: 70.0,
vertical: 15,
),
child: Text('Play Now'),
),
),
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NeoPopTiltedButton Attributes #

Attribute
Type
Description

child
Widget
The child of the button

color
Color?
Color of the button

decoration
NeoPopTiltedButtonDecoration?
The decoration to paint the button. The color and decoration arguments cannot both be supplied, since it would potentially result in the decoration drawing over the background color. To supply a decoration with a color, use decoration.

buttonDepth
double?
The depth of the tilted button. default: 8.0

onTapUp
VoidCallback?
A callback triggered when a pointer that will trigger a tap with button has stopped contacting the screen

onTapDown
VoidCallback?
A callback triggered when a pointer that might cause a tap with button has contacted the screen

shadowDistance
double?
The maximum distance from the button at which the shadow is painted. default: 20

yPosFactor
double?
Factor that defines the floating positions of buttons and shadow along vertical-axis. default: 5

isFloating
bool
Whether the button is floating. default: false

floatingDuration
Duration?
The duration of the floating animation. One floating cycle i.e to-and-fro movement of the button and shadow accounts for two floating durations. default: Duration(milliseconds: 1500)

floatingDelay
Duration?
The delay between two floating cycles. default: Duration(milliseconds: 750)

tapDuration
Duration?
The duration of the animation when button is pressed or released. default: Duration(milliseconds: 100)

enabled
bool
Whether the button is enabled. default: true

Contributing #
Pull requests are welcome! We'd love help improving this library. Feel free to browse through open issues to look for things that need work. If you have a feature request or bug, please open a new issue so we can track it.
License #
Copyright 2022 Dreamplug Technologies Private Limited.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
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