Answers for "how to remove debug line in flutter app"

how to remove debug tag in flutter

Inside your MaterialApp widget, add the following property.

MaterialApp(
 debugShowCheckedModeBanner: false
)

how to remove debug tag in flutter

// Add debugShowCheckedModeBanner: false to your Material
return new MaterialApp(
	debugShowCheckedModeBanner: false,
    theme: new ThemeData(
      primarySwatch: Colors.green,
    ),
    //...
);