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Description:

uiblock

uiblock #

Easiest and simplest method to block/unblock ui for your flutter apps.
One line of code to block/unblock ui and stop user from navigating during loading or processing in your flutter apps. You could use it as a widget or directly as a global service/util.

Fully customizable
Android and IOS
Easy and Simple
No other dependencies
Well documented
Production ready

Installation #
With null-safety
dependencies:
uiblock: ^2.0.1
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Without null-safety
dependencies:
uiblock: 1.2.0
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Getting Started #
Add the dependency to your project and start using uiblock everywhere:
Import the package.
import 'package:uiblock/uiblock.dart';
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To block ui
// default
UIBlock.block(context);

//OR

// if using globalKey
UIBlock.block(_scaffoldGlobalKey.currentContext);
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To unblock ui
// call unblock after blockui to dissmiss
UIBlock.unblock(context);

//OR

// if using globalKey
UIBlock.unblock(_scaffoldGlobalKey.currentContext);
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#
Using as a widget #
//toggle showLoader to block/unblock
FlatButton(
child: Text('Load Async'),
onPressed: () {
setState(() {
showLoader = !showLoader;
});
},
),

// easily create custom block ui body
Container(
height: _height,
child: UIBlock(
loadingStateFromFuture: () async {
if (showLoader) {
// return null, to block ui
return null;
}
// unblocks ui on hasData or hasError
return Future.value(Random().nextInt(200));
},
barrierColor: Colors.blueGrey,
barrierOpacity: 0.2,
loadingTextWidget: Text('Loading data...'),
hideBuilderOnNullData: true,
builder: (BuildContext context, AsyncSnapshot<dynamic> snapshot) {
return Center(child: Text('Async Data ${snapshot.data}'));
},
),
);
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#
Blocking with text #
UIBlock.block(
_scaffoldGlobalKey.currentContext,
canDissmissOnBack: true,
loadingTextWidget: Padding(
padding: const EdgeInsets.all(8.0),
child: Text(
'Press back to dissmiss',
textAlign: TextAlign.center,
style: TextStyle(
color: Colors.white,
fontSize: 18.0,
fontWeight: FontWeight.w600,
),
),
),
);
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Creating using child builder #
// easily create custom block ui body
UIBlock.block(
_scaffoldGlobalKey.currentContext,
backgroundColor: Colors.green.withOpacity(0.5),
imageFilter: ImageFilter.blur(sigmaX: 5.0, sigmaY: 5.0),
childBuilder: (BuildContext context) {
// return your widget here
},
);

// Don't forget to call unblock after block :)
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Creating custom block modal transitions (only applicable on static UIBlock.block) #
// NOTE : only for on UIBlock.block as this uses Modal Barrier
// widget block is inline widget replacement with loader widget

UIBlock.block(
//...
// more code
customBuildBlockModalTransitions:
(context, animation, secondaryAnimation, child) {
return RotationTransition(
turns: animation,
child: child,
);
},
// ...
);
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Using with data return #
// NOTE : canDissmissOnBack is alaways true
var result = await UIBlock.blockWithData(
_scaffoldGlobalKey.currentContext,
loadingTextWidget: Padding(
padding: const EdgeInsets.all(8.0),
child: FlatButton(
onPressed: () {
// unblock and return data
UIBlock.unblockWithData(context, "hello world");
},
child: Text(
'Press here to dissmiss with data. Back for null',
textAlign: TextAlign.center,
style: TextStyle(
color: Colors.white,
fontSize: 18.0,
fontWeight: FontWeight.w600,
),
),
),
),
);

print(result);
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For more details have a look at the other examples.
#
Properties #

Property
Type
Default
Note

context (required)
BuildContext
-

childBuilder
Function
-

customLoaderChild
Widget
-

loadingTextWidget
Widget
-

imageFilter
ImageFilter
-

backgroundColor
Color
Transparent

canDissmissOnBack
bool
false

safeAreaLeft
bool
true
Set as 'false' to disable 'Left' Safe Area

safeAreaTop
bool
true
Set as 'false' to disable 'Top' (usually status bar) Safe Area

safeAreaRight
bool
true
Set as 'false' to disable 'Right' Safe Area

safeAreaBottom
bool
true
Set as 'false' to disable 'Bottom' Safe Area

safeAreaMinimumPadding
EdgeInsets
EdgeInsets.zero

safeAreaMaintainBottomViewPadding
bool
false

isSlideTransitionDefault
bool
true
Toggle between slide or fade transition

buildBlockModalTransitions
Function
-
Use this to create custom transition other than fade/slide

Widget Properties #

Property
Type
Default

builder
Function
you implement it

loadingStateFromFuture
Future
your future function (APIs,etc)

loaderBuilder
Function
-

customLoaderChild
Widget
-

loadingTextWidget
Widget
-

offset
offset
-

barrierOpacity
double
0.4

barrierColor
Color
black45

canDismiss
bool
false

hideBuilderOnNullData
bool
false

#
Improve #
Help me by reporting bugs, submit new ideas for features or anything else that you want to share.

Just write an issue on GitHub. ✏️
And don't forget to hit the like button for this package ✌️

More #
Check out my other useful packages on pub.dev