双击 TextFormField答案

【问题标题】：double click in TextFormField双击 TextFormField
【发布时间】：2020-05-31 12:53:38
【问题描述】：

我使用颤振 1.17.0 但是当我在 TextFormField 中双击双击时，一件事并不好将文本粘贴到 TextFormField 我收到此错误

�[38;5;248m════════ 小部件库捕获的异常 ═══════════════════════════════════�[39;49m×[38;5;244m以下断言被抛出建筑 _OverlayEntryWidget-[LabeledGlobalKey<_overlayentrywidgetstate>#8f5d7]（脏，状态：_OverlayEntryWidgetState#f2029):�[39;49m 无 MediaQuery 小部件找到了。

�[38;5;244m_OverlayEntryWidget 小部件需要 MediaQuery 小部件祖先。�[39;49m �[38;5;244m 找不到的特定小部件 MediaQuery 祖先是： _OverlayEntryWidget-[LabeledGlobalKey<_overlayentrywidgetstate>#8f5d7]�[39;49m �[38;5;244mdirty�[39;49m �[38;5;244mstate： _OverlayEntryWidgetState#f2029�[39;49m�[38;5;244m受影响小部件的所有权链为： "_OverlayEntryWidget-[LabeledGlobalKey<_overlayentrywidgetstate>#8f5d7] ← _Theatre ← Overlay ← Directionality ← FlutterEasyLoading ← EasyLocalizationProvider ← ScopedModelDescendant ← _InheritedModel ← AnimatedBuilder ← ScopedModel ← ⋯"�[39;49m

�[38;5;248m 通常，MediaQuery 小部件由应用程序小部件顶部的 MaterialApp 或 WidgetsApp 小部件树。�[39;49m

�[38;5;244m相关的导致错误的小部件是�[39;49m �[38;5;248mFlutterEasyLoading�[39;49m �[38;5;244m时异常被抛出，这是堆栈。[39;49m „[38;5;244m#0 debugCheckHasMediaQuery.�[39;49m �[38;5;244m#1 debugCheckHasMediaQuery�[39;49m �[38;5;244m#2 _MaterialTextSelectionControls.buildToolbar�[39;49m�[38;5;244m#3 TextSelectionOverlay._buildToolbar�[39;49m�[38;5;244m#4 _OverlayEntryWidgetState.build.[39;49m =[38;5;244m....[39;49m =[38;5;248m════════════════════ ══════════════════════════════════════════════════ ══════════�[39;49m

我的 main.dart

void main() {
runApp(EasyLocalization(child: MyApp()));
}

class MyApp extends StatefulWidget {
@override
State createState() {
return _MyAppState();
}
}

class _MyAppState extends State {
final MainModel _model = MainModel();

@override
void initState() {
SystemChrome.setPreferredOrientations([

]);
_model.initAppDirectory();
super.initState();
}

changeStatusBar() async{
await FlutterStatusbarcolor.setStatusBarColor(MySetting.mainColor);
FlutterStatusbarcolor.setStatusBarWhiteForeground(true);
if(Theme.of(context).platform == TargetPlatform.android){
await FlutterStatusbarcolor.setNavigationBarColor(Colors.black38);
}
}

@override
Widget build(BuildContext context) {
changeStatusBar();
var data = EasyLocalizationProvider.of(context).data;

return ScopedModel<MainModel>(
    model: _model,
    child: ScopedModelDescendant<MainModel>(
      rebuildOnChange: false,
        builder: (BuildContext context, Widget child, MainModel model) {
      return EasyLocalizationProvider(
        data: data,
        child: FlutterEasyLoading(
          child: MaterialApp(
            builder: (BuildContext context, Widget child) {
              return MediaQuery(
              data: MediaQuery.of(context).copyWith(textScaleFactor: 1.0),
              child: child,
              );
            },
            debugShowCheckedModeBanner: false,
            title: 'my app',              
            localizationsDelegates: [
              GlobalCupertinoLocalizations.delegate,
              DefaultCupertinoLocalizations.delegate,
              GlobalMaterialLocalizations.delegate,
              GlobalWidgetsLocalizations.delegate,
              EasylocaLizationDelegate(
                  locale: Locale('ar', 'DZ'), path: 'assets/languages'),
            ],
            supportedLocales: [Locale('ar', 'DZ'), Locale('en', 'US')],
            locale: data.locale,
            theme: ThemeData(
              primarySwatch: MySetting.mainColor,
            ),
            home: SplashScreen( _model),
            },
          ),
        ),
      );
    }));
}
}

请帮忙解决因为我的应用程序被停止以解决这个问题并且仍然出现红屏错误而且我不知道错误在哪里

【问题讨论】：

标签： flutter dart

【解决方案1】：

我有同样的错误。就我而言，错误是 FlutterEasyLoading 库。

删除该库后，双击 TextFormField 开始正常工作。

希望对你有所帮助。

【讨论】：