Flex | NativeBase

NativeBase

3.4.x

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If you are starting a new project, please try gluestack-ui for better performance and new design.

Flex

Flex provides helpful style shorthand and is a

Box

with display: flex.

Import

Copy
import { Flex, Spacer } from 'native-base';

Flex: a Box
with display: flex

Spacer: creates an adjustable, empty space that can be used to tune the spacing between child elements within Flex

Usage

Flex components come with some helpful shorthand props:

flexDirection is direction

flexWrap is wrap

alignItems is align

justifyContent is justify

While you can pass the verbose props, using the shorthand can save you some time.

Example


Playground
function Example() {
  const [direction, setDirection] = React.useState("column");
  return <Center>
      <Box>
        <Heading size="md" mb={3}>
          Primary Shades
        </Heading>
      </Box>
      <Button my={3} onPress={() => setDirection(direction === "row" ? "column" : "row")}>
        Change Flex Direction
      </Button>
      <Box>
        {
        /* @ts-ignore */
      }
        <Flex direction={direction}>
          <Center size={16} bg="primary.100" _text={{
          color: "gray.800"
        }}>
            100
          </Center>
          <Center size={16} bg="primary.200" _text={{
          color: "white"
        }}>
            200
          </Center>
          <Center bg="primary.300" size={16} _text={{
          color: "white"
        }}>
            300
          </Center>
          <Center size={16} bg="primary.400" _text={{
          color: "white"
        }}>
            400
          </Center>
        </Flex>
      </Box>
    </Center>;
}function Example() {
  const [direction, setDirection] = React.useState("column");
  return <Center>
      <Box>
        <Heading size="md" mb={3}>
          Primary Shades
        </Heading>
      </Box>
      <Button my={3} onPress={() => setDirection(direction === "row" ? "column" : "row")}>
        Change Flex Direction
      </Button>
      <Box>
        {
        /* @ts-ignore */
      }
        <Flex direction={direction}>
          <Center size={16} bg="primary.100" _text={{
          color: "gray.800"
        }}>
            100
          </Center>
          <Center size={16} bg="primary.200" _text={{
          color: "white"
        }}>
            200
          </Center>
          <Center bg="primary.300" size={16} _text={{
          color: "white"
        }}>
            300
          </Center>
          <Center size={16} bg="primary.400" _text={{
          color: "white"
        }}>
            400
          </Center>
        </Flex>
      </Box>
    </Center>;
}

Using the Spacer

You can pass Spacer to add Space between Flex items.


Playground
const Example = () => {
  return <Flex h={40} w={20} mt={6}>
      <Center size={16} bg="primary.400" rounded="xl" _text={{
      color: "white"
    }}>
        Box 1
      </Center>
      <Spacer />
      <Center size={16} bg="secondary.400" rounded="xl" _text={{
      color: "white"
    }}>
        Box 2
      </Center>
    </Flex>;
};const Example = () => {
  return <Flex h={40} w={20} mt={6}>
      <Center size={16} bg="primary.400" rounded="xl" _text={{
      color: "white"
    }}>
        Box 1
      </Center>
      <Spacer />
      <Center size={16} bg="secondary.400" rounded="xl" _text={{
      color: "white"
    }}>
        Box 2
      </Center>
    </Flex>;
};