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- import 'package:flutter/material.dart';
- void main(){
- runApp(MyApp());
- }
- class MyApp extends StatelessWidget{
- @override
- Widget build(BuildContext context) {
- return MaterialApp(
- title: "Test",
- home: Scaffold(
- appBar: AppBar(title: Text("Test")),
- body: Container(
- child: Center(
- child: RaisedButton(
- color: Colors.redAccent,
- textColor: Colors.white,
- onPressed: (){testAlert(context);},
- child: Text("PressMe"),
- ),
- ),
- ),
- ),
- );
- }
- void testAlert(BuildContext context){
- var alert = AlertDialog(
- title: Text("Test"),
- content: Text("Done..!"),
- );
- showDialog(
- context: context,
- builder: (BuildContext context){
- return alert;
- }
- );
- }
- }
- Performing hot reload...
- Syncing files to device ZUK Z2131...
- Reloaded 0 of 419 libraries in 1,929ms.
- I/flutter (18652): ══╡ EXCEPTION CAUGHT BY GESTURE ╞═══════════════════════════════════════════════════════════════════
- I/flutter (18652): The following assertion was thrown while handling a gesture:
- I/flutter (18652): No MaterialLocalizations found.
- I/flutter (18652): MyApp widgets require MaterialLocalizations to be provided by a Localizations widget ancestor.
- I/flutter (18652): Localizations are used to generate many different messages, labels,and abbreviations which are used
- I/flutter (18652): by the material library.
- I/flutter (18652): To introduce a MaterialLocalizations, either use a MaterialApp at the root of your application to
- I/flutter (18652): include them automatically, or add a Localization widget with a MaterialLocalizations delegate.
- I/flutter (18652): The specific widget that could not find a MaterialLocalizations ancestor was:
- I/flutter (18652): MyApp
- I/flutter (18652): The ancestors of this widget were:
- I/flutter (18652): [root]
- I/flutter (18652):
- I/flutter (18652): When the exception was thrown, this was the stack:
- I/flutter (18652): #0 debugCheckHasMaterialLocalizations.<anonymous closure> (package:flutter/src/material/debug.dart:124:7)
- I/flutter (18652): #1 debugCheckHasMaterialLocalizations (package:flutter/src/material/debug.dart:127:4)
- I/flutter (18652): #2 showDialog (package:flutter/src/material/dialog.dart:635:10)
- I/flutter (18652): #3 MyApp.testAlert (package:flutter_app/main.dart:33:5)
- I/flutter (18652): #4 MyApp.build.<anonymous closure> (package:flutter_app/main.dart:19:29)
- I/flutter (18652): #5 _InkResponseState._handleTap (package:flutter/src/material/ink_well.dart:507:14)
- I/flutter (18652): #6 _InkResponseState.build.<anonymous closure> (package:flutter/src/material/ink_well.dart:562:30)
- I/flutter (18652): #7 GestureRecognizer.invokeCallback (package:flutter/src/gestures/recognizer.dart:102:24)
- I/flutter (18652): #8 TapGestureRecognizer._checkUp (package:flutter/src/gestures/tap.dart:242:9)
- I/flutter (18652): #9 TapGestureRecognizer.handlePrimaryPointer (package:flutter/src/gestures/tap.dart:175:7)
- I/flutter (18652): #10 PrimaryPointerGestureRecognizer.handleEvent (package:flutter/src/gestures/recognizer.dart:315:9)
- I/flutter (18652): #11 PointerRouter._dispatch (package:flutter/src/gestures/pointer_router.dart:73:12)
- I/flutter (18652): #12 PointerRouter.route (package:flutter/src/gestures/pointer_router.dart:101:11)
- I/flutter (18652): #13 _WidgetsFlutterBinding&BindingBase&GestureBinding.handleEvent (package:flutter/src/gestures/binding.dart:180:19)
- I/flutter (18652): #14 _WidgetsFlutterBinding&BindingBase&GestureBinding.dispatchEvent (package:flutter/src/gestures/binding.dart:158:22)
- I/flutter (18652): #15 _WidgetsFlutterBinding&BindingBase&GestureBinding._handlePointerEvent (package:flutter/src/gestures/binding.dart:138:7)
- I/flutter (18652): #16 _WidgetsFlutterBinding&BindingBase&GestureBinding._flushPointerEventQueue (package:flutter/src/gestures/binding.dart:101:7)
- I/flutter (18652): #17 _WidgetsFlutterBinding&BindingBase&GestureBinding._handlePointerDataPacket (package:flutter/src/gestures/binding.dart:85:7)
- I/flutter (18652): #18 _invoke1 (dart:ui/hooks.dart:168:13)
- I/flutter (18652): #19 _dispatchPointerDataPacket (dart:ui/hooks.dart:122:5)
- I/flutter (18652):
- I/flutter (18652): Handler: onTap
- I/flutter (18652): Recognizer:
- I/flutter (18652): TapGestureRecognizer#d5d82(debugOwner: GestureDetector, state: possible, won arena, finalPosition:
- I/flutter (18652): Offset(220.2, 406.1), sent tap down)
- I/flutter (18652): ════════════════════════════════════════════════════════════════════════════════════════════════════
- W/ActivityThread(18652): handleWindowVisibility: no activity for token android.os.BinderProxy@59b4e8d
- I/ViewRootImpl(18652): CPU Rendering VSync enable = true
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