Skip to content

Instantly share code, notes, and snippets.

@datafoya
Last active November 19, 2019 16:26
Show Gist options
  • Save datafoya/82e4dd24028034ae03ba0ddc71bf59e5 to your computer and use it in GitHub Desktop.
Save datafoya/82e4dd24028034ae03ba0ddc71bf59e5 to your computer and use it in GitHub Desktop.
Text flex values
import 'package:flutter_web/material.dart';
import 'package:flutter_web_test/flutter_web_test.dart';
import 'package:flutter_web_ui/ui.dart' as ui;
class MyWidget extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Row(
children: [
BlueBox(),
Flexible(
fit: FlexFit.tight,
flex: 1,
child: BlueBox(),
),
Flexible(
fit: FlexFit.tight,
flex: 1,
child: BlueBox(),
),
],
);
}
}
class BlueBox extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Container(
width: 50,
height: 50,
decoration: BoxDecoration(
color: Colors.blue,
border: Border.all(),
),
);
}
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Directionality(
textDirection: TextDirection.ltr,
child: Container(
color: Color(0xffeeeeee),
child: Center(
child: Container(
child: MyWidget(),
color: Color(0xffcccccc),
),
),
),
);
}
}
Future<void> main() async {
await ui.webOnlyInitializePlatform();
runApp(MyApp());
final controller = LiveWidgetController(WidgetsBinding.instance);
final rows = controller.widgetList(find.byType(Row));
if (rows.length == 0) {
_result(false, ['Couldn\'t find a Row!']);
return;
}
if (rows.length > 1) {
_result(false, ['Found ${rows.length} Rows, rather than just one.']);
return;
}
final row = rows.first as Row;
if (row.children.length != 3) {
_result(false, ['The Row should have three children, all BlueBlox or Flexible widgets.']);
return;
}
if (row.children[0] is! BlueBox) {
_result(false, ['The Row\'s first child should be a BlueBox widget.']);
return;
}
if (row.children[1] is! Flexible) {
_result(false, ['The Row\'s second child should be a Flexible widget.']);
return;
}
if (row.children[2] is! Flexible) {
_result(false, ['The Row\'s third child should be a Flexible widget.']);
return;
}
final flexibleWidget = row.children[1] as Flexible;
if (flexibleWidget.child == null || flexibleWidget.child is! BlueBox) {
_result(false, ['The Flexible should have a BlueBox widget as its child.']);
return;
}
if (flexibleWidget.flex != 1) {
_result(false, ['Notice how the flex properties divide the extra space between the two Flexible widgets.']);
return;
}
_result(true, ['Both Flexible widgets receive half of the total remaining space.']);
}
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment