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Description:

another flushbar

another_flushbar #
Use this package if you need more customization when notifying your user. For Android developers, it is made to substitute
toasts and snackbars. IOS developers, I don't know what you use there, but you will like it.
See the install instructions.
Quick reference #
Since customization requires a lot of properties, here is a quick cheatsheet:

Property
What does it do

title
The title displayed to the user

titleColor
The title color displayed to the user

titleSize
The title size displayed to the user

message
The message displayed to the user.

messageColor
The message color displayed to the user.

messageSize
The message size displayed to the user.

titleText
Replaces [title]. Although this accepts a [widget], it is meant to receive [Text] or [RichText]

messageText
Replaces [message]. Although this accepts a [widget], it is meant to receive [Text] or [RichText]

icon
You can use any widget here, but I recommend [Icon] or [Image] as indication of what kind of message you are displaying. Other widgets may break the layout

shouldIconPulse
An option to animate the icon (if present). Defaults to true.

maxWidth
Used to limit Flushbar width (usually on large screens)

margin
Adds a custom margin to Flushbar

padding
Adds a custom padding to Flushbar. The default follows material design guide line

borderRadius
Adds a radius to specified corners of Flushbar. Best combined with [margin]. I do not recommend using it with [showProgressIndicator] or [leftBarIndicatorColor]

textDirection
[TextDirection.ltr] by default. [Directionality.of(context)] to know whether it would be [TextDirection.ltr] or [TextDirection.rtl]

borderColor
Adds a border to every side of Flushbar. I do not recommend using it with [showProgressIndicator] or [leftBarIndicatorColor]

borderWidth
Changes the width of the border if [borderColor] is specified

backgroundColor
Flushbar background color. Will be ignored if [backgroundGradient] is not null.

leftBarIndicatorColor
If not null, shows a left vertical bar to better indicate the humor of the notification. It is not possible to use it with a [Form] and I do not recommend using it with [LinearProgressIndicator].

boxShadows
The shadows generated by Flushbar. Leave it null if you don't want a shadow. You can use more than one if you feel the need. Check this example

backgroundGradient
Flushbar background gradient. Makes [backgroundColor] be ignored.

mainButton
Use if you need an action from the user. [FlatButton] is recommended here.

onTap
A callback that registers the user's click anywhere. An alternative to [mainButton]

duration
How long until Flushbar will hide itself (be dismissed). To make it indefinite, leave it null.

isDismissible
Determines if the user can swipe or click the overlay (if [routeBlur] > 0) to dismiss. It is recommended that you set [duration] != null if this is false. If the user swipes to dismiss or clicks the overlay, no value will be returned.

dismissDirection
FlushbarDismissDirection.VERTICAL by default. Can also be [FlushbarDismissDirection.HORIZONTAL] in which case both left and right dismiss are allowed.

flushbarPosition
Flushbar can be based on [FlushbarPosition.TOP] or on [FlushbarPosition.BOTTOM] of your screen. [FlushbarPosition.BOTTOM] is the default.

flushbarStyle
Flushbar can be floating or be grounded to the edge of the screen. If grounded, I do not recommend using [margin] or [borderRadius]. [FlushbarStyle.FLOATING] is the default

forwardAnimationCurve
The [Curve] animation used when show() is called. [Curves.easeOut] is default.

reverseAnimationCurve
The [Curve] animation used when dismiss() is called. [Curves.fastOutSlowIn] is default.

animationDuration
Use it to speed up or slow down the animation duration

showProgressIndicator
true if you want to show a [LinearProgressIndicator]. If [progressIndicatorController] is null, an infinite progress indicator will be shown

progressIndicatorController
An optional [AnimationController] when you want to control the progress of your [LinearProgressIndicator]. You are responsible for controlling the progress

progressIndicatorBackgroundColor
a [LinearProgressIndicator] configuration parameter.

progressIndicatorValueColor
a [LinearProgressIndicator] configuration parameter.

barBlur
Default is 0.0. If different than 0.0, blurs only Flushbar's background. To take effect, make sure your [backgroundColor] has some opacity. The greater the value, the greater the blur.

blockBackgroundInteraction
Determines if user can interact with the screen behind it. If this is false, [routeBlur] and [routeColor] will be ignored

routeBlur
Default is 0.0. If different than 0.0, creates a blurred overlay that prevents the user from interacting with the screen. The greater the value, the greater the blur. It does not take effect if [blockBackgroundInteraction] is false

routeColor
Default is [Colors.transparent]. Only takes effect if [routeBlur] > 0.0. Make sure you use a color with transparency e.g. Colors.grey[600].withOpacity(0.2). It does not take effect if [blockBackgroundInteraction] is false

userInputForm
A [TextFormField] in case you want a simple user input. Every other widget is ignored if this is not null.

onStatusChanged
a callback for you to listen to the different Flushbar status

Quick tip
If you use a lot of those properties, it makes sense to make a factory to help with your Flushbar's base appearance.
Things like shadows, padding, margins, text styles usually don't change within the app. Take a look at FlushbarHelper class and use it as an example.
We are on YouTube! #
While studying Flutter I stumbled on two amazing tutorials on how to use Flushbar.
Make sure you show those guys some love.

A beginners tutorial by Matej Rešetár
A more advanced usage by Javier González Rodríguez

Getting Started #
The examples bellow were updated for version 1.3.0. Changes might have been made. See the changelog if any of the examples do not
reflect Flushbar's current state.
The possibilities #

A basic Flushbar #
The most basic Flushbar uses only a message. Failing to provide it before you call show() will result in a runtime error.
Duration, if not provided, will create an infinite Flushbar, only dismissible by code, back button clicks, or a drag (case isDismissible is set to true).

Note that only message is a required parameter. All the other ones are optional

class YourAwesomeApp extends StatelessWidget {

@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'YourAwesomeApp',
home: Scaffold(
Container(
child: Center(
child: MaterialButton(
onPressed: (){
Flushbar(
title: "Hey Ninja",
message: "Lorem Ipsum is simply dummy text of the printing and typesetting industry",
duration: Duration(seconds: 3),
)..show(context);
},
),
),
),
),
);
}
}
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Lets get crazy Flushbar #
Here is how customized things can get.
Flushbar(
title: "Hey Ninja",
titleColor: Colors.white,
message: "Lorem Ipsum is simply dummy text of the printing and typesetting industry",
flushbarPosition: FlushbarPosition.TOP,
flushbarStyle: FlushbarStyle.FLOATING,
reverseAnimationCurve: Curves.decelerate,
forwardAnimationCurve: Curves.elasticOut,
backgroundColor: Colors.red,
boxShadows: [BoxShadow(color: Colors.blue[800], offset: Offset(0.0, 2.0), blurRadius: 3.0)],
backgroundGradient: LinearGradient(colors: [Colors.blueGrey, Colors.black]),
isDismissible: false,
duration: Duration(seconds: 4),
icon: Icon(
Icons.check,
color: Colors.greenAccent,
),
mainButton: FlatButton(
onPressed: () {},
child: Text(
"CLAP",
style: TextStyle(color: Colors.amber),
),
),
showProgressIndicator: true,
progressIndicatorBackgroundColor: Colors.blueGrey,
titleText: Text(
"Hello Hero",
style: TextStyle(
fontWeight: FontWeight.bold, fontSize: 20.0, color: Colors.yellow[600], fontFamily: "ShadowsIntoLightTwo"),
),
messageText: Text(
"You killed that giant monster in the city. Congratulations!",
style: TextStyle(fontSize: 18.0, color: Colors.green, fontFamily: "ShadowsIntoLightTwo"),
),
);
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Don't forget to call show() or the bar will stay hidden.
To deactivate any of those properties, pass null to it.

Styles #
Flushbar can be either floating or grounded to the edge of the screen.
I don't recommend using margin or borderRadius if you chose FlushbarStyle.GROUNDED style.
Flushbar(flushbarStyle: FlushbarStyle.FLOATING)
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or
Flushbar(flushbarStyle: FlushbarStyle.GROUNDED)
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Floating Style
Grounded Style

Padding and Border Radius #
You can give it some padding and a border radius. Works best with FlushbarStyle.FLOATING
Flushbar(
margin: EdgeInsets.all(8),
borderRadius: BorderRadius.circular(8),
);

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Left indicator bar #
Flushbar has a lateral bar to better convey the humor of the notification. To use it, simple give leftBarIndicatorColor a color.
Flushbar(
message: "Lorem Ipsum is simply dummy text of the printing and typesetting industry",
icon: Icon(
Icons.info_outline,
size: 28.0,
color: Colors.blue[300],
),
duration: Duration(seconds: 3),
leftBarIndicatorColor: Colors.blue[300],
)..show(context);
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Customize your text #
If you need a more fancy text, you can use Text or RichText
and pass it to the titleText or messageText variables.

Note that title will be ignored if titleText is not null
Note that message will be ignored if messageText is not null

Flushbar(
title: "Hey Ninja", //ignored since titleText != null
message: "Lorem Ipsum is simply dummy text of the printing and typesetting industry", //ignored since messageText != null
titleText: Text("Hello Hero", style: TextStyle(fontWeight: FontWeight.bold, fontSize: 20.0 color: Colors.yellow[600], fontFamily:"ShadowsIntoLightTwo"),),
messageText: Text("You killed that giant monster in the city. Congratulations!", style: TextStyle(fontSize: 16.0, color: Colors.green[fontFamily: "ShadowsIntoLightTwo"),),
)..show(context);
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Customize background and shadow #
You can paint the background with any color you want. You can use any shadow you want.
Just give it a backgroundColor and boxShadows.
Flushbar(
title: "Hey Ninja",
message: "Lorem Ipsum is simply dummy text of the printing and typesetting industry",
backgroundColor: Colors.red,
boxShadows: [BoxShadow(color: Colors.red[800], offset: Offset(0.0, 2.0), blurRadius: 3.0,)],
)..show(context);
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Want a gradient in the background? No problem.

Note that backgroundColor will be ignored while backgroundGradient is not null

Flushbar(
title: "Hey Ninja",
message: "Lorem Ipsum is simply dummy text of the printing and typesetting industry",
backgroundGradient: LinearGradient(colors: [Colors.blue, Colors.teal]),
backgroundColor: Colors.red,
boxShadows: [BoxShadow(color: Colors.blue[800], offset: Offset(0.0, 2.0), blurRadius: 3.0,)],
)..show(context);
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Icon and button action #
Let us put a Icon that has a PulseAnimation. Icons have this animation by default and cannot be changed as of now.
Also, let us put a button. Have you noticed that show() returns a Future?
This Future will yield a value when you call dismiss([T result]).
I recommend that you specify the result generic type if you intend to collect an user input.
Flushbar flush;
bool _wasButtonClicked;
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@override
Widget build(BuildContext context) {
return Container(
child: Center(
child: MaterialButton(
onPressed: () {
flush = Flushbar<bool>(
title: "Hey Ninja",
message: "Lorem Ipsum is simply dummy text of the printing and typesetting industry",
icon: Icon(
Icons.info_outline,
color: Colors.blue,),
mainButton: FlatButton(
onPressed: () {
flush.dismiss(true); // result = true
},
child: Text(
"ADD",
style: TextStyle(color: Colors.amber),
),
),) // <bool> is the type of the result passed to dismiss() and collected by show().then((result){})
..show(context).then((result) {
setState(() { // setState() is optional here
_wasButtonClicked = result;
});
});
},
),
),
);
}
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Flushbar position #
Flushbar can be at FlushbarPosition.BOTTOM or FlushbarPosition.TOP.
Flushbar(
flushbarPosition: FlushbarPosition.TOP,
title: "Hey Ninja",
message: "Lorem Ipsum is simply dummy text of the printing and typesetting industry",)..show(context);
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Duration and dismiss policy #
By default, Flushbar is infinite. To set a duration, use the duration property.
By default, Flushbar is dismissible by the user. A right or left drag will dismiss it.
Set isDismissible to false to change this behaviour.
Flushbar(
title: "Hey Ninja",
message: "Lorem Ipsum is simply dummy text of the printing and typesetting industry",
duration: Duration(seconds: 3),
isDismissible: false,
)..show(context);
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Progress Indicator #
If you are loading something, use a LinearProgressIndicator
If you want an undetermined progress indicator, do not set progressIndicatorController.
If you want a determined progress indicator, you now have full control over the progress since you own the AnimationController

There is no need to add a listener to your controller just to call setState(){}. Once you pass in your controller, Flushbar will do this automatically. Just make sure you call _controller.forward()

AnimationController _controller = AnimationController(
vsync: this,
duration: Duration(seconds: 3),
);

Flushbar(
title: "Hey Ninja",
message: "Lorem Ipsum is simply dummy text of the printing and typesetting industry",
showProgressIndicator: true,
progressIndicatorController: _controller,
progressIndicatorBackgroundColor: Colors.grey[800],
)..show(context);
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Show and dismiss animation curves #
You can set custom animation curves using forwardAnimationCurve and reverseAnimationCurve.
Flushbar(
forwardAnimationCurve: Curves.decelerate,
reverseAnimationCurve: Curves.easeOut,
title: "Hey Ninja",
message: "Lorem Ipsum is simply dummy text of the printing and typesetting industry",
)..show(context);
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Listen to status updates #
You can listen to status update using the onStatusChanged property.

Note that when you pass a new listener using onStatusChanged, it will activate once immediately so you can check in what state the Flushbar is.

Flushbar flushbar = Flushbar(title: "Hey Ninja", message: "Lorem Ipsum is simply dummy text of the printing and typesetting industry");

flushbar
..onStatusChanged = (FlushbarStatus status) {
switch (status) {
case FlushbarStatus.SHOWING:
{
doSomething();
break;
}
case FlushbarStatus.IS_APPEARING:
{
doSomethingElse();
break;
}
case FlushbarStatus.IS_HIDING:
{
doSomethingElse();
break;
}
case FlushbarStatus.DISMISSED:
{
doSomethingElse();
break;
}
}
}
..show(context);

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Input text #
Sometimes we just want a simple user input. Use the propertyuserInputForm.

Note that buttons, messages, and icons will be ignored if userInputForm != null
dismiss(result) will yield result. dismiss() will yield null.

Flushbar<List<String>> flush;
final GlobalKey<FormState> _formKey = GlobalKey<FormState>();
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TextFormField getFormField(String text) {
return TextFormField(
initialValue: text,
style: TextStyle(color: Colors.white),
maxLength: 100,
maxLines: 1,
maxLengthEnforced: true,
decoration: InputDecoration(
fillColor: Colors.white10,
filled: true,
icon: Icon(
Icons.label,
color: Colors.grey[500],
),
border: UnderlineInputBorder(),
helperText: "Helper Text",
helperStyle: TextStyle(color: Colors.grey),
labelText: "Label Text",
labelStyle: TextStyle(color: Colors.grey)),
);
}

flush = Flushbar<List<String>>(
userInputForm = Form(
key: _formKey,
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
getTextFormField("Initial Value"),
getTextFormField("Initial Value Two"),
]
Align(
alignment: Alignment.bottomRight,
child: Padding(
padding: const EdgeInsets.only(top: 8.0),
child: MaterialButton(
textColor: Colors.amberAccent,
child: Text("SUBMIT"),
onPressed: () {
flush.dismiss([_controller1.value.text, _controller2.value.text]);
},
),
),
)
],),),
)..show(context).then((result) {
if (result != null) {
String userInput1 = result[0];
String userInput2 = result[1];
}
});
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This example tries to mimic the Material Design style guide

RTL text #

You can add textDirection: Directionality.of(context) for rtl.
Flushbar(
message: "لوريم إيبسوم هو ببساطة نص شكلي يستخدم في صناعة الطباعة والتنضيد",
icon: Icon(
Icons.info_outline,
size: 28.0,
color: Colors.blue[300],
),
margin: EdgeInsets.all(6.0),
flushbarStyle: FlushbarStyle.FLOATING,
flushbarPosition: FlushbarPosition.TOP,
textDirection: Directionality.of(context),
borderRadius: BorderRadius.circular(12),
duration: Duration(seconds: 3),
leftBarIndicatorColor: Colors.blue[300],
)..show(context);
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Flushbar Helper #
I made a helper class to facilitate the creation of the most common Flushbars.
FlushbarHelper.createSuccess({message, title, duration});
FlushbarHelper.createInformation({message, title, duration});
FlushbarHelper.createError({message, title, duration});
FlushbarHelper.createAction({message, title, duration flatButton});
FlushbarHelper.createLoading({message,linearProgressIndicator, title, duration, progressIndicatorController, progressIndicatorBackgroundColor});
FlushbarHelper.createInputFlushbar({textForm});
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