如何在 flutter 中使用多个提供程序

Question

I'm trying to use Multiple providers in my application, but i'm facing some compile time error at builder by using below code

Code

ChangeNotifierProvider(builder: (_) => FirstProvider()),
ChangeNotifierProvider(builder: (_) => SecondProvider()),

Answer 1

you can use MultiProvider to do so. as following.

MultiProvider(
  providers: [
    ChangeNotifierProvider(builder: (_) => FirstProvider()),
    ChangeNotifierProvider(builder: (_) => SecondProvider()),
  ],
  child: someWidget,
)

Answer 2

Hey builder was deprecated you can refer this link for more info Builder Deprecation

We can use Multiple providers like this

 MultiProvider(
          providers: [
            ChangeNotifierProvider<ProductDataProvider>(
                create: (_) => ProductDataProvider()),
            ChangeNotifierProvider<AuthenticationProvider>(
                create: (_) => AuthenticationProvider()),
          ],
          child: Container())

Answer 3

You can use it like this:

    MultiProvider(
      providers: [
        ChangeNotifierProvider(create: (context) => CartModel()),
        Provider(create: (context) => SomeOtherClass()),
      ],
      child: MyApp(),
    ),