我正在練習此代碼
uj5u.com熱心網友回復：
https://api.flutter.dev/flutter/widgets/StatefulWidget/createState.html
改變這個，
class HomePage extends StatefulWidget{
@override
_HomePageState createSatate ()=> _HomePageState(); // change createSatate to createState
}
到，
class HomePage extends StatefulWidget{
@override
_HomePageState createState ()=> _HomePageState();
}
uj5u.com熱心網友回復：
class HomePage extends StatefulWidget{
@override
_HomePageState createSatate ()=> _HomePageState();
}
是因為筆誤。
更改createSatate為createState。
您的 Homepage 類將如下所示
class HomePage extends StatefulWidget{
@override
_HomePageState createState ()=> _HomePageState();
}
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