How do I hide the shadow under react-navigation he

问题:

How do I hide the shadow under react-navigation headers?
They look like this.

回答1:

Add the following to the navigationOptions header style.

const AppNavigation = StackNavigator(
  {
    'The First Screen!': { screen: FirstScreen },
  },
  {
    navigationOptions: {
      header: {
        style: {
          elevation: 0, // remove shadow on Android
          shadowOpacity: 0, // remove shadow on iOS
        },
      },
    },
  },
);

The documentation isn't great yet, but you can learn about navigationOptions in the React Navigation Docs.

回答2:

The following works for me as the original Stylesheet uses "borderBottomWidth" on iOS:

const navigator = StackNavigator(screens, {
  navigationOptions: {
    headerStyle: {
      elevation: 0,
      shadowOpacity: 0,
      borderBottomWidth: 0,
    }
  }
});

回答3:

This works for me:

export const AppNavigator = StackNavigator(
    {
      Login: { screen: LoginScreen },
      Main: { screen: MainScreen },
      Profile: { screen: ProfileScreen },
    },
    navigationOptions: {
        headerStyle: {
            elevation: 0,
            shadowOpacity: 0,
        }
    }
);

or

export const AppNavigator = StackNavigator(
    {
      Login: { screen: LoginScreen },
      Main: { screen: MainScreen },
      Profile: { screen: ProfileScreen },
    },
    header: {
        style: {
            elevation: 0, //remove shadow on Android
            shadowOpacity: 0, //remove shadow on iOS
        }
    }
);

回答4:

Try passing cardStyle: { shadowColor: 'transparent' }

export const AppNavigator = StackNavigator(
{
  Login: { screen: LoginScreen },
  Main: { screen: MainScreen },
  Profile: { screen: ProfileScreen },
},
cardStyle: { shadowColor: 'transparent' }

As per this question React Navigation Stack Navigator default shadow styling

回答5:

You can try this, and it worked for me !

export const SignedOut = StackNavigator({
  SignIn: {
    screen: SignInScreen,
    navigationOptions: {
      title: "SignIn",
      headerStyle: {
        shadowOpacity: 0, // This is for ios
        elevation: 0 // This is for android
      }
    }
  }
});

回答6:

I have been trying to solve this problem for the past couple of hours and have finally found the solution. The problem in my case was that the header was in a different Z position than the rest of the other components.

try:

const styles = {
  headerStyle: {
    zIndex: 1
  }
}

回答7:

The shadow is achieved via elevation, use:

 headerStyle: {
     backgroundColor: 'white',
     shadowColor: 'transparent',
     elevation: 0,
 },