Flutter Next

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pub package License: MIT popularity likes pub points Star on Github Star on Github


Now build flutter apps with ease and responsive.


An advanced flutter package to build responsive application accross all platform with ease and has an handful of different types of extension.

Features

  • Develop Responsive Ui
  • Add animations with single line
  • Handful of extension

Usage/Examples

🔗 One Page

Appendix

Widgets

Avatar

  Text(
    "Avatar Group",
    style: TextStyle(fontSize: 30, fontWeight: FontWeight.bold),
  ),
  SizedBox(
    height: 15,
  ),
  NextAvatarGroup(
      backgroundColor: Colors.orange,
      imagesList: List.generate(
          6,
          (index) => NetworkImage(
              "https://images.ctfassets.net/hrltx12pl8hq/qGOnNvgfJIe2MytFdIcTQ/429dd7e2cb176f93bf9b21a8f89edc77/Images.jpg?fit=fill&w=175&h=175&fm=webp"))),
  Text(
    "Custom Avatar Group",
    style: TextStyle(fontSize: 30, fontWeight: FontWeight.bold),
  ),
  SizedBox(
    height: 15,
  ),
  NextAvatarGroup(
    backgroundColor: Colors.orange,
    itemCount: 6,
    widthFactor: 0.8,
    imagesList: List.generate(
        10,
        (index) => NetworkImage(
            "https://images.ctfassets.net/hrltx12pl8hq/qGOnNvgfJIe2MytFdIcTQ/429dd7e2cb176f93bf9b21a8f89edc77/Images.jpg?fit=fill&w=175&h=175&fm=webp")),
    itemBuilder: (context, index, image) => Stack(
      children: [
        Container(
          width: 50,
          height: 50,
          decoration: BoxDecoration(
              image: DecorationImage(image: image),
              border: Border.all(color: Colors.orange, width: 1.5),
              color: Colors.red,
              borderRadius: BorderRadius.circular(10)),
        ),
        if (index % 3 == 0)
          Positioned(
            bottom: 0,
            left: 0,
            child: CircleAvatar(
              backgroundColor: Colors.green,
              radius: 5,
            ),
          )
      ],
    ),
  ),
      Text(
        "Avatar Group Limit count",
        style: TextStyle(fontSize: 30, fontWeight: FontWeight.bold),
      ),
      SizedBox(
        height: 15,
      ),
      NextAvatarGroup(
        backgroundColor: Colors.orange,
        limitTo: 5,
        imagesList: List.generate(
            10,
            (index) => NetworkImage(
                "https://images.ctfassets.net/hrltx12pl8hq/qGOnNvgfJIe2MytFdIcTQ/429dd7e2cb176f93bf9b21a8f89edc77/Images.jpg?fit=fill&w=175&h=175&fm=webp")),
        widthFactor: 0.5,
      )

Hover Widget

Using this you can know whether widget is hovered or not. Even it works for mobile and every device.

Hover Duration - Duration for returning from hover to normal state

  HoverWidget(
    builder:(context,isHovered)=>Container(child:....)
  )

BreadCumb

   NextBreadCumb(
      childrens: ["Home", "Dashboard", "Payment", "Checkout"]
          .map((e) => NextBreadCumbItem(child: (isHovered) => Text(e)))
          .toList()),
    SizedBox(height: 20),
    Text("With Custom Separator"),
    SizedBox(height: 10),
    NextBreadCumb(
        seperator: Text("---"),
        childrens: ["A", "B", "C", "D", "E", "F", "G", "H"]
            .map(
              (e) => NextBreadCumbItem(child: (isHovered) => Text(e)),
            )
            .toList()),

Additionally you can provide variant

  • Wrap (If exceeds more than width then it will move to next line)
  • Scroll (It will scroll horizontally)

Alerts

Define an alert by:

  NextAlert(
    child: Text("Yo, this is primary alert"),
    onClosedIconPressed: () {},
    margin: EdgeInsets.only(bottom: 15),
  ),

You can use multiple variant of alerts

  NextAlert(
    variant: NextVariant.secondary,
    child: Text("Yo, this is primary alert"),
    onClosedIconPressed: () {},
    margin: EdgeInsets.only(bottom: 15),
  ),

And you can even define custom,variant should be custom

 NextAlert(
    variant: NextVariant.custom,
    customConfigs: NextAlertColorUtils(
      borderColor: Colors.black,
      backgroundColor: Colors.pink,
      color: Colors.deepOrange,
    ),
    child: Text("Yo, this is primary alert"),
    onClosedIconPressed: () {},
    margin: EdgeInsets.only(bottom: 15),
  ),

Grid System

Extra small
<576px
Small
≥576px
Medium
≥768px
Large
≥992px
Extra large
≥1200px
Max container width None (auto) 540px 720px 960px 1140px
Class prefix col- col-sm- col-md- col-lg- col-xl-
NextRow(
  verticalSpacing: 15,
  horizontalSpacing: 15,
  children: [
    "col-12 col-md-6 col-lg-4",
    "col-12 col-md-6 col-lg-4",
    "col-12 col-md-3 col-lg-4 col-sm-6 col-xs-6",
    "col-12 col-md-3 col-lg-4 col-sm-6 col-xs-6"
  ]
      .map((e) => NextCol(
          sizes: e,
          child: Container(
            height: 100,
            decoration: BoxDecoration(color: Colors.orange),
            child: Center(
              child: Text(
                e,
                textAlign: TextAlign.center,
                style: TextStyle(color: Colors.white),
              ),
            ),
            width: double.infinity,
          )))
      .toList())

Next Grid

 NextGridView(
  sizes: "col-6 col-md-3 col-lg-4 col-xl-3 col-xs-6",
  childrens: List.generate(
      12,
      (index) => NextGridItem(
          child: Text(
                  "$index ${NextUtils.getPrefixByWidth(context.width)}")
              .center()
              .sizedBox(width: double.infinity, height: 100)
              .addDecoration(BoxDecoration(
                  color: Colors.orange,
                  borderRadius: BorderRadius.circular(8))))))
  • Additionaly you can even provide vertical spacing or horizontal spacing and for each children you can even define separate sizes
NextGridItem(
  sizes: "col-12 col-md-6 col-lg-6",
  ....
)

Container

Extra small
<576px
Small
≥576px
Medium
≥768px
Large
≥992px
X-Large
≥1200px
XX-Large
≥1400px
Next Container 100% 540px 720px 960px 1140px 1320px
  • If you pass fluid as true then it will take whole width

Accordion

 NextAccordion(
    initiallyExpanded: true,
    backgroundColor: Colors.white,
    collapsedBackgroundColor: Colors.white,
    title: Text("Hey this it title which is initially Expanded"),
    children: [
      Padding(
        padding: EdgeInsets.symmetric(vertical: 20, horizontal: 10),
        child: NextAlert(
          child: Text("Yo this is child"),
        ),
      )
    ],
  ),

Button

You can customise button by using itemBuilder

   NextButton(
    onPressed: () {},
    style: TextStyle(color: Colors.white),
    child: Text(
      "Filled Button",
      style: TextStyle(color: Colors.white),
    ),
  ),
  SizedBox(height: 20),
  NextButton(
    onPressed: () {},
    variant: NextButtonVariant.outlined,
    child: Text("Outline Button"),
  ),
  NextButton(
    onPressed: () {},
    variant: NextButtonVariant.outlined,
    itemBuilder: (context, isHovered, color) =>
        Icon(Icons.headset_rounded, color: color)
            .paddingSymmetric(horizontal: 20, vertical: 10)
            .decoration(BoxDecoration(
              border:
                  Border.all(color: context.primaryColor, width: 1.5),
              color: !isHovered ? context.primaryColor : Colors.white,
              borderRadius: BorderRadius.circular(8),
            )),
  )
  • the param color in itemBuilder is a color tween between color and outline color provided in button

Animations

Available Animations

  • Slide Animation
    • SlideInLeft
    • SlideInRight
    • SlideInTop
    • SlideInBottom
  • Zoom Animation
    • ZoomIn
    • ZoomOut
  • Fade Animation
    • FadeInLeft
    • FadeInRight
    • FadeInTop
    • FadeInBottom
    • FadeOutLeft
    • FadeOutRight
    • FadeOutTop
    • FadeOutBottom
  • Flip Animation
    • Flipx
    • FlipY
  • Bounce Animation
    • BounceInLeft
    • BounceInRight
    • BounceInTop
    • BounceInBottom
 Text("Fade In Animations").customPadding(bottom: 20),
  Row(
    mainAxisAlignment: MainAxisAlignment.spaceAround,
    children: [
      ContainerThing().fadeIn(
          variant: NextFadeInVariant.fadeInLeft,
          duration: Duration(milliseconds: 600)),
      ContainerThing().fadeIn(
          variant: NextFadeInVariant.fadeInTop,
          duration: Duration(milliseconds: 600)),
      ContainerThing().fadeIn(
          variant: NextFadeInVariant.fadeInBottom,
          duration: Duration(milliseconds: 600)),
      ContainerThing().fadeIn(
          variant: NextFadeInVariant.fadeInRight,
          duration: Duration(milliseconds: 600)),
    ],
  ),
  SizedBox(height: 20),
  Text("Fade out Animations").customPadding(bottom: 20),
  Row(
    mainAxisAlignment: MainAxisAlignment.spaceAround,
    children: [
      ContainerThing(
        color: Colors.red,
      ).fadeOut(
          variant: NextFadeOutVariant.fadeOutLeft,
          duration: Duration(milliseconds: 600)),
      ContainerThing(
        color: Colors.red,
      ).fadeOut(
          variant: NextFadeOutVariant.fadeOutTop,
          duration: Duration(milliseconds: 600)),
      ContainerThing(
        color: Colors.red,
      ).fadeOut(
          variant: NextFadeOutVariant.fadeOutBottom,
          duration: Duration(milliseconds: 600)),
      ContainerThing(
        color: Colors.red,
      ).fadeOut(
          variant: NextFadeOutVariant.fadeOutRight,
          duration: Duration(milliseconds: 600)),
    ],
  ),
  SizedBox(height: 20),
  Text("Flip Animations").customPadding(bottom: 20),
  Row(
    mainAxisAlignment: MainAxisAlignment.spaceAround,
    children: [
      ContainerThing(
        color: Colors.yellow,
      ).flip(
          variant: NextFlipVariant.flipX,
          duration: Duration(milliseconds: 600)),
      ContainerThing(
        color: Colors.yellow,
      ).flip(
          variant: NextFlipVariant.flipY,
          duration: Duration(milliseconds: 600)),
    ],
  ),
  SizedBox(height: 20),
  Text("Zoom Animations").customPadding(bottom: 20),
  Row(
    mainAxisAlignment: MainAxisAlignment.spaceAround,
    children: [
      ContainerThing().zoom(variant: NextZoomVariant.zoomIn),
      ContainerThing().zoom(variant: NextZoomVariant.zoomOut),
    ],
  )

Extensions

Widget Extensions

  • Now you can add onTap function easily
Widget().onTap((){
  ....
})
  • Double Tap
Widget().onDoubleTap((){
  ....
})
  • On Long press
Widget().onLongPress((){
  ....
})
  • And center your widget easily
Widget(
  child:...
).center()
  • And for column/row/stack
[Widget1(),Widget2(),Widget3()].column(
  // Additionally you can provide mainAxis and remaining params here
)
  • For decoration
Widget().addDecoration(BoxDecoration(
  // Add params here
))
  • you can even use clipRRect,clipper,safearea etc...

Context

Now access themedata and mediaquery data easily like

  context.themeData
  context.textTheme
  context.buttonTheme
  context.snackBarTheme

Or if you want to develop responsive views w.r.t height and width

  context.height
  context.width

And for colors

  context.primaryColor
  context.backgroundColor
  context.canvasColor
  context.dividerColor

Padding

Instead of

Padding(
  padding: const EdgeInsets.all(20)
  child:Widget(
    child...
  )
)

You can use

Widget(
  child:...
).pad(20)
// Or
Widget(
  child:...
).paddingSymmetric(horizontal:20,vertical:12)
//or
Widget(
  child:...
).customPadding(left:10,right:12)

String

  • We provide handful of string extensions
    • "string".capitalize() // Output is: String
    • "45".toInt() // Output is: 45
    • "45.4".toDouble() // Output is: 45.4
    • "flutter".isInt() //Output is: False
    • "flutter".isDouble() //Output is: False
    • "flutter".toDouble() //Output is: null

Bool

  • false.toggle() //Output is true

Shadows

  ContainerThing(
    shadows: NextShadow.shadow100()
  ),
  • Additionally you can provide customshadow color
  ContainerThing(
    shadows: NextShadow.shadow100(color:Colors.red)
  ),

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Contributions

  • Contributions are always welcome
  • Follow the linting