質問編集履歴
2
追記を削除
test
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File without changes
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test
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@@ -318,7 +318,11 @@
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final movie = model.myPageMovie;
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return movie == null
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? Center(child: CircularProgressIndicator())
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-
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: Form(
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key: formKey,
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@@ -450,34 +454,6 @@
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450
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##謎のwidgetsエラー
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456
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```console
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════════ Exception caught by widgets library ═══════════════════════════════════
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460
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461
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The getter 'pointText1' was called on null.
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Receiver: null
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Tried calling: pointText1
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The relevant error-causing widget was
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Consumer<MyPageMovieProvider>
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lib/…/mypage/mypage_movie_form.dart:201
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-
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```
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-
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-
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476
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477
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Formの画面を開くたびにこのエラーが発生します。全く理由がわかりません。。。
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478
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457
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#試したこと
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459
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`mypage_movie_provider.dart`で定義されている`point1Text`に初期値を入れてみました。
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@@ -546,62 +522,6 @@
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546
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#追記
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550
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-
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551
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552
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-
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```dart:mypage_movie_form.dart
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@override
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Widget build(BuildContext context) {
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return ChangeNotifierProvider<MyPageMovieProvider>.value(
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value: MyPageMovieProvider()..fetchMyMovies(id),
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child: Consumer<MyPageMovieProvider>(
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-
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builder: (context, model, child) {
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566
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-
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567
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final movie = model.myPageMovie;
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568
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-
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569
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return movie == null
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570
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-
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571
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? Center(child: CircularProgressIndicator())
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572
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-
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573
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: Form(
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574
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-
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575
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key: formKey,
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576
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-
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577
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-
```
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578
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-
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579
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-
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580
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-
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581
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-
`mypage_movie_form.dart`で`model.myPageMovie`のnullの対応を追加すると、下記のエラーは解消されました！
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582
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-
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583
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-
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584
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-
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585
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-
```console
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586
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-
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587
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════════ Exception caught by widgets library ═══════════════════════════════════
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588
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-
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589
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-
The getter 'pointText1' was called on null.
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590
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-
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591
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Receiver: null
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592
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-
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593
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Tried calling: pointText1
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594
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-
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595
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-
The relevant error-causing widget was
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596
|
-
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597
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-
Consumer<MyPageMovieProvider>
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598
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-
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599
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-
lib/…/mypage/mypage_movie_form.dart:201
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600
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-
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601
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-
```
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602
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-
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603
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-
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604
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-
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605
525
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#最後に
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606
526
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607
527
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**Providerが難しくてあまり理解できていません。。どなたかご教授いただけると幸いです！**
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1
追記を追加
test
CHANGED
|
File without changes
|
test
CHANGED
|
@@ -546,6 +546,62 @@
|
|
|
546
546
|
|
|
547
547
|
|
|
548
548
|
|
|
549
|
+
#追記
|
|
550
|
+
|
|
551
|
+
|
|
552
|
+
|
|
553
|
+
```dart:mypage_movie_form.dart
|
|
554
|
+
|
|
555
|
+
@override
|
|
556
|
+
|
|
557
|
+
Widget build(BuildContext context) {
|
|
558
|
+
|
|
559
|
+
return ChangeNotifierProvider<MyPageMovieProvider>.value(
|
|
560
|
+
|
|
561
|
+
value: MyPageMovieProvider()..fetchMyMovies(id),
|
|
562
|
+
|
|
563
|
+
child: Consumer<MyPageMovieProvider>(
|
|
564
|
+
|
|
565
|
+
builder: (context, model, child) {
|
|
566
|
+
|
|
567
|
+
final movie = model.myPageMovie;
|
|
568
|
+
|
|
569
|
+
return movie == null
|
|
570
|
+
|
|
571
|
+
? Center(child: CircularProgressIndicator())
|
|
572
|
+
|
|
573
|
+
: Form(
|
|
574
|
+
|
|
575
|
+
key: formKey,
|
|
576
|
+
|
|
577
|
+
```
|
|
578
|
+
|
|
579
|
+
|
|
580
|
+
|
|
581
|
+
`mypage_movie_form.dart`で`model.myPageMovie`のnullの対応を追加すると、下記のエラーは解消されました！
|
|
582
|
+
|
|
583
|
+
|
|
584
|
+
|
|
585
|
+
```console
|
|
586
|
+
|
|
587
|
+
════════ Exception caught by widgets library ═══════════════════════════════════
|
|
588
|
+
|
|
589
|
+
The getter 'pointText1' was called on null.
|
|
590
|
+
|
|
591
|
+
Receiver: null
|
|
592
|
+
|
|
593
|
+
Tried calling: pointText1
|
|
594
|
+
|
|
595
|
+
The relevant error-causing widget was
|
|
596
|
+
|
|
597
|
+
Consumer<MyPageMovieProvider>
|
|
598
|
+
|
|
599
|
+
lib/…/mypage/mypage_movie_form.dart:201
|
|
600
|
+
|
|
601
|
+
```
|
|
602
|
+
|
|
603
|
+
|
|
604
|
+
|
|
549
605
|
#最後に
|
|
550
606
|
|
|
551
607
|
**Providerが難しくてあまり理解できていません。。どなたかご教授いただけると幸いです！**
|