build method
- BuildContext context
override
Describes the part of the user interface represented by this widget.
The framework calls this method when this widget is inserted into the tree in a given BuildContext and when the dependencies of this widget change (e.g., an InheritedWidget referenced by this widget changes). This method can potentially be called in every frame and should not have any side effects beyond building a widget.
The framework replaces the subtree below this widget with the widget returned by this method, either by updating the existing subtree or by removing the subtree and inflating a new subtree, depending on whether the widget returned by this method can update the root of the existing subtree, as determined by calling Widget.canUpdate.
Typically implementations return a newly created constellation of widgets that are configured with information from this widget's constructor and from the given BuildContext.
The given BuildContext contains information about the location in the tree at which this widget is being built. For example, the context provides the set of inherited widgets for this location in the tree. A given widget might be built with multiple different BuildContext arguments over time if the widget is moved around the tree or if the widget is inserted into the tree in multiple places at once.
The implementation of this method must only depend on:
- the fields of the widget, which themselves must not change over time, and
- any ambient state obtained from the
contextusing BuildContext.dependOnInheritedWidgetOfExactType.
If a widget's build method is to depend on anything else, use a StatefulWidget instead.
See also:
- StatelessWidget, which contains the discussion on performance considerations.
Implementation
@override
Widget build(BuildContext context) {
final localeProvider = Provider.of<LocaleProvider>(context);
final personalDataProvider = Provider.of<PersonalDataProvider>(context);
final parametersProvider = Provider.of<ParametersProvider>(context);
final buttonsProvider = Provider.of<ButtonsProvider>(context);
double screenHeight = MediaQuery.of(context).size.height;
return GestureDetector(
onTap: () {
FocusScope.of(context).unfocus();
},
child: Scaffold(
resizeToAvoidBottomInset: false,
appBar: getGeneralAppBar(context, localeProvider, false),
body: Padding(
padding: const EdgeInsets.all(8.0),
child: Center(
// Center is a layout widget. It takes a single child and positions it
// in the middle of the parent.
child: Column(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
crossAxisAlignment: CrossAxisAlignment.stretch,
children: [
Flexible(
child:Padding(
padding: const EdgeInsets.all(16.0),
child: Row(
mainAxisAlignment: MainAxisAlignment.start,
children: [
FittedBox(
fit: BoxFit.scaleDown,
child: Text(
AppLocalizations.of(context)!.user.toUpperCase() + ":\t",
style: TextStyle(color: Colors.black, fontWeight: FontWeight.bold, fontSize: 22),
),
),
DropdownButton2<int?>(
hint: Padding(
padding: const EdgeInsets.all(8.0),
child: FittedBox(
fit: BoxFit.scaleDown,
child: Text(AppLocalizations.of(context)!.value_select,
style: const TextStyle(
//Si se ha intentado iniciar el test sin rellenar este campo, el texto sale en rojo y negrita
color: Colors.grey,
// fontWeight: parametersProvider.startButtonPressed ? FontWeight.bold : null,
fontSize: 20
),
),
),
),
style: TextStyle(color: Colors.blue, fontSize: 20),
isExpanded: false,
underline: SizedBox(),
//iconEnabledColor: Colors.blue,
value: personalDataProvider.activeUser,
items: List.generate(personalDataProvider.profileCounter, (index) {
return DropdownMenuItem(
value: index,
child: Padding(
padding: const EdgeInsets.all(8.0),
child: Text(personalDataProvider.profilesList[index].nickname ?? ""),
),
);
}).toList(),
onChanged: (int? value) {
if (value != null) {
personalDataProvider.setActiveUser(value);
buttonsProvider.setIsUserSelected(true);
}
}
),
],
),
),
),
Stack(
children: [
Center(
child: Opacity(
opacity: buttonsProvider.isUserSelected ? 1: HomeConstants.opacity,
child: Padding(
padding: const EdgeInsets.fromLTRB(16,0,16,8),
child: Container(
decoration: BoxDecoration(
color: AppColors.primaryBlue,
borderRadius: BorderRadius.circular(10),
border: Border.all(color: AppColors.primaryBlue, width: 3),
),
child: Center(
child: Row(
children: [
Flexible(
flex: 5,
child: Padding(
padding: const EdgeInsets.all(8.0),
child: TextField(
controller: parametersProvider.codeidController1,
readOnly: buttonsProvider.isReadOnly,
decoration: InputDecoration(
labelText: AppLocalizations.of(context)!.code_message,
labelStyle: TextStyle(color: Colors.white,),
border: const OutlineInputBorder(),
enabledBorder: OutlineInputBorder(
borderSide: BorderSide(color: buttonsProvider.wrongCodeId ? Colors.red : Colors.white,),
borderRadius: BorderRadius.circular(HomeConstants.codeIdRadius),
),
focusedBorder: OutlineInputBorder(
borderSide: BorderSide(color: buttonsProvider.wrongCodeId ? Colors.red : Colors.white,),
borderRadius: BorderRadius.circular(HomeConstants.codeIdRadius),
),
),
style: const TextStyle(color: Colors.white,),
),
),
),
const Flexible(
flex: 1,
child: Padding(
padding: const EdgeInsets.all(8.0),
child: FittedBox(
fit: BoxFit.scaleDown,
child: Text(
"-",
style: TextStyle(color: Colors.white,fontWeight: FontWeight.bold, fontSize: 30),
),
),
)
),
Flexible(
flex: 2,
child: Padding(
padding: const EdgeInsets.all(8.0),
child: TextField(
controller: parametersProvider.codeidController2,
readOnly: buttonsProvider.isReadOnly,
decoration: InputDecoration(
border: const OutlineInputBorder(),
enabledBorder: OutlineInputBorder(
borderSide: BorderSide(color: buttonsProvider.wrongCodeId ? Colors.red : Colors.white,),
borderRadius: BorderRadius.circular(HomeConstants.codeIdRadius),
),
focusedBorder: OutlineInputBorder(
borderSide: BorderSide(color: buttonsProvider.wrongCodeId ? Colors.red : Colors.white,),
borderRadius: BorderRadius.circular(HomeConstants.codeIdRadius),
),
),
inputFormatters: [
FilteringTextInputFormatter.digitsOnly,
LengthLimitingTextInputFormatter(3),
],
style: const TextStyle(color: Colors.white,),
),
),
),
Flexible(
flex: 1,
child: Padding(
padding: const EdgeInsets.all(8.0),
child: IconButton(
icon: buttonsProvider.isReadOnly ?
const Icon(Icons.edit, color: Colors.white)
:
const Icon(Icons.check, color: Colors.white),
onPressed: () => codeIdButton(context),
),
),
),
],
),
),
),
),
),
),
if(!buttonsProvider.isUserSelected) const Center(child: Icon(Icons.lock, size: HomeConstants.lockSize, color: Colors.red)),
],
),
Expanded(
child: HomeButton(
text: AppLocalizations.of(context)!.profile_creation,
onPressed: () => createProfile(context),
height: screenHeight / HomeConstants.buttonHeightRatio,
isActive: true,
),
),
Flexible(
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Expanded(
child: HomeButton(
text: AppLocalizations.of(context)!.view_profile,
onPressed: () => editProfile(context),
height: screenHeight / HomeConstants.buttonHeightRatio,
isActive: buttonsProvider.isUserSelected,
)
),
Expanded(
child: HomeButton(
text: AppLocalizations.of(context)!.view_tests,
onPressed: () {
showDialog(
context: context,
builder: (context) =>
AlertDialog(
title: Text(
//Se comprueba si la lista existe y está llena. En el caso de no existir, no evalua el testList!.isNotEmpty
((personalDataProvider.profilesList[personalDataProvider.activeUser ?? 0].testList != null) &&
(personalDataProvider.profilesList[personalDataProvider.activeUser ?? 0].testList!.isNotEmpty)) ?
AppLocalizations.of(context)!.my_tests : AppLocalizations.of(context)!.no_tests ,
style: const TextStyle(
fontWeight: FontWeight
.bold,
color: Colors.red),
),
content:
((personalDataProvider.profilesList[personalDataProvider.activeUser ?? 0].testList != null) &&
(personalDataProvider.profilesList[personalDataProvider.activeUser ?? 0].testList!.isNotEmpty)) ?
//Aqui empieza el contenido si existe y no esta vacia la lista de tests
Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
mainAxisAlignment: MainAxisAlignment.start,
children: [
Expanded(child: FittedBox(
fit: BoxFit.scaleDown,
child: Text(
AppLocalizations.of(context)!.date,
style: const TextStyle(fontWeight: FontWeight.bold, color: AppColors.blueText),
),
)),
Expanded(child: FittedBox(
fit: BoxFit.scaleDown,
child: Text(
AppLocalizations.of(context)!.hand,
style: const TextStyle(fontWeight: FontWeight.bold, color: AppColors.blueText),
),
)),
Expanded(child: FittedBox(
fit: BoxFit.scaleDown,
child: Text(
'${AppLocalizations.of(context)!.answers} / ${AppLocalizations.of(context)!.mistakes}',
style: const TextStyle(fontWeight: FontWeight.bold, color: AppColors.blueText),
),
)),
],
),
Row(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
// Columna de fechas
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.center,
children: personalDataProvider.profilesList[personalDataProvider.activeUser ?? 0].testList!.map((d) => FittedBox(
fit: BoxFit.scaleDown,
child: Text(
'${d.date!.day}/${d.date!.month}/${(d.date!.year)%100} | ${d.date!.hour}:${d.date!.minute.toString().padLeft(2,'0')}',
style: const TextStyle(fontSize: HomeConstants.viewMyTestsFont),
),
)).toList(),
),
),
// Columna de nombres
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.center,
children: personalDataProvider.profilesList[personalDataProvider.activeUser ?? 0].testList!.map((d) => FittedBox(
fit: BoxFit.scaleDown,
child: Text(
(d.hand == "L") ? AppLocalizations.of(context)!.l : AppLocalizations.of(context)!.r,
style: const TextStyle(fontSize: HomeConstants.viewMyTestsFont),
),
)).toList(),
),
),
// Columna de valores
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.center,
children: personalDataProvider.profilesList[personalDataProvider.activeUser ?? 0].testList!.map((d) => FittedBox(
fit: BoxFit.scaleDown,
child: Text(
'${d.displayed} / ${d.mistakes}',
style: const TextStyle(fontSize: HomeConstants.viewMyTestsFont),
),
)).toList(),
),
),
],
),
],
)
//Aqui acaba el contenido si la lista de test existe y no esta vacia
:
Text(""),
actions: [
TextButton(
onPressed: () => Navigator.of(context).pop(),
child: const Text('OK',
style: TextStyle(fontSize: 20)),
),
],
),
);
},
height: screenHeight / HomeConstants.buttonHeightRatio,
isActive: buttonsProvider.isUserSelected
)
),
],
),
),
Expanded(
child: HomeButton(
text: AppLocalizations.of(context)!.start,
onPressed: () {
showDialog(
context: context,
builder: (context) =>
AlertDialog(
title: Text(
AppLocalizations.of(context)!.trial_title,
style: const TextStyle(
fontWeight: FontWeight.bold,
color: AppColors.blueText),
),
content: SingleChildScrollView(
child: Text(
AppLocalizations.of(context)!.test_explanation,
style: const TextStyle(
fontSize: 20,
color: AppColors.blueText),
),
),
actions: [
TextButton(
onPressed: () =>
Navigator.of(context).pop(),
child: Text(AppLocalizations.of(context)!.back,
style: const TextStyle(
fontSize: 20)),
),
TextButton(
onPressed: () => startTest(context),
child: Text(AppLocalizations.of(context)!.start_trial,
style: TextStyle(
fontSize: 20)),
),
],
),
);
},
height: screenHeight / HomeConstants.buttonHeightRatio,
isActive: buttonsProvider.isCodeValidated,
),
),
],
),
),
),
),
);
}