react-native-deck-swiper-linear-gradient

v1.0.1

Published

3 years ago

Awesome tinder like card swiper with linear gradient background. For Expo and React Native apps. Fork of react-native-deck-swiper

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priyanshrastogi

react-native react-native-component tinder cards card swipe swiper deck animation linear-gradient

react-native-deck-swiper

Installation

npm install react-native-deck-swiper --save

Overview

[x] Rotation animation
[x] Opacity animation
[x] Zoom animation
[x] Overlay labels
[x] Show next card while swiping
[x] Swipe event callbacks
[x] Trigger swipe animations programmatically
[x] Jump to a card index
[x] Swipe to the previous card
[x] Underlaying cards offset
[ ] Swipe back to the previous card with a custom animation
[ ] Never-ending, animated deck when infinite property is true

Preview

App preview App preview2

Props

Card props

Event callbacks

| Props | type | description | default | | :---------------- | :----- | :------------------------------------------------------------------------------------ | :------ | | onSwipedAll | func | function to be called when all cards have been swiped | | () => {} | | onSwiped | func | function to be called when a card is swiped. it receives the swiped card index | | (cardIndex) => {} | | onSwipedAborted | func | function to be called when a card is released before reaching the threshold | | () => {} | | onSwipedLeft | func | function to be called when a card is swiped left. it receives the swiped card index | | (cardIndex) => {} | | onSwipedRight | func | function to be called when a card is swiped right. it receives the swiped card index | | (cardIndex) => {} | | onSwipedTop | func | function to be called when a card is swiped top. it receives the swiped card index | | (cardIndex) => {} | | onSwipedBottom | func | function to be called when a card is swiped bottom. it receives the swiped card index | | (cardIndex) => {} | | onSwiping | func | function to be called when a card is being moved. it receives X and Y positions | | (x, y) => {} | | onTapCard | func | function to be called when tapping a card. it receives the tapped card index | | (cardIndex) => {} | | onTapCardDeadZone | number | maximum amount of movement before a tap is no longer recognized as a tap | 5 |

Swipe animation props

Stack props

Rotation animation props

Opacity animation props

2 steps of inputOverlayLabelsOpacityRangeX and inputOverlayLabelsOpacityRangeY should match horizontalThreshold and verticalThreshold, respectively.

Swipe overlay labels

overlayLabelStyle

{
  fontSize: 45,
  fontWeight: 'bold',
  borderRadius: 10,
  padding: 10,
  overflow: 'hidden'
}

overlayLabelWrapperStyle default props:

{
  position: 'absolute',
  backgroundColor: 'transparent',
  zIndex: 2,
  flex: 1,
  width: '100%',
  height: '100%'
}

overlayLabels default props :

{
  bottom: {
	element: <Text>BLEAH</Text> /* Optional */
	title: 'BLEAH',
    style: {
      label: {
        backgroundColor: 'black',
        borderColor: 'black',
        color: 'white',
        borderWidth: 1
      },
      wrapper: {
        flexDirection: 'column',
        alignItems: 'center',
        justifyContent: 'center'
      }
    }
  },
  left: {
	element: <Text>NOPE</Text> /* Optional */
	title: 'NOPE',
    style: {
      label: {
        backgroundColor: 'black',
        borderColor: 'black',
        color: 'white',
        borderWidth: 1
      },
      wrapper: {
        flexDirection: 'column',
        alignItems: 'flex-end',
        justifyContent: 'flex-start',
        marginTop: 30,
        marginLeft: -30
      }
    }
  },
  right: {
	element: <Text>LIKE</Text> /* Optional */
	title: 'LIKE',
    style: {
      label: {
        backgroundColor: 'black',
        borderColor: 'black',
        color: 'white',
        borderWidth: 1
      },
      wrapper: {
        flexDirection: 'column',
        alignItems: 'flex-start',
        justifyContent: 'flex-start',
        marginTop: 30,
        marginLeft: 30
      }
    }
  },
  top: {
	element: <Text>SUPER</Text> /* Optional */
	title: 'SUPER LIKE',
    style: {
      label: {
        backgroundColor: 'black',
        borderColor: 'black',
        color: 'white',
        borderWidth: 1
      },
      wrapper: {
        flexDirection: 'column',
        alignItems: 'center',
        justifyContent: 'center'
      }
    }
  }
}

Swipe back to previous card props

Make sure you set showSecondCard={false} for smoother and proper transitions while going back to previous card.

Style props

| Props | type | description | default | | :------------------- | :----- | :------------------------------------------------- | :-------- | | backgroundColor | string | background color for the view containing the cards | '#4FD0E9' | | marginTop | number | marginTop for the swiper container | 0 | | marginBottom | number | marginBottom for the swiper container | 0 | | cardVerticalMargin | number | card vertical margin | 60 | | cardHorizontalMargin | number | card horizontal margin | 20 | | childrenOnTop | bool | render children on top or not | false | | cardStyle | node | override swipable card style | {} |

Methods

To trigger imperative animations, you can use a reference to the Swiper component.

Usage example

render () {
    <View style={styles.container}>
        <Swiper
            cards={['DO', 'MORE', 'OF', 'WHAT', 'MAKES', 'YOU', 'HAPPY']}
            renderCard={(card) => {
                return (
                    <View style={styles.card}>
                        <Text style={styles.text}>{card}</Text>
                    </View>
                )
            }}
            onSwiped={(cardIndex) => {console.log(cardIndex)}}
            onSwipedAll={() => {console.log('onSwipedAll')}}
            cardIndex={0}
            backgroundColor={'#4FD0E9'}
            stackSize= {3}>
            <Button
                onPress={() => {console.log('oulala')}}
                title="Press me">
                You can press me
            </Button>
        </Swiper>
    </View>
}

Demo inside the Exemples Folder

Stylesheet example

const styles = StyleSheet.create({
  container: {
    flex: 1,
    backgroundColor: "#F5FCFF"
  },
  card: {
    flex: 1,
    borderRadius: 4,
    borderWidth: 2,
    borderColor: "#E8E8E8",
    justifyContent: "center",
    backgroundColor: "white"
  },
  text: {
    textAlign: "center",
    fontSize: 50,
    backgroundColor: "transparent"
  }
});

Updating props on card content? (dynamic card content)

Card properties may change, including on already swiped cards, which would yield no effects to users as the cards would no longer be displayed [based on initial issue].

A possible fix for the situation is setting the cardIndex on the parent component whenever deck re-renders are needed.

const { cardIndex } = this.props;
return (<Swiper
  ref={swiper => {
    this.swiper = swiper;
  }}
  {...customSwiperProps}
  cardIndex={cardIndex}
/>)

Passing along the cardIndex to the swiper will allow external changes on the property, thus triggering a re-render of the deck of cards. All onSwipe callbacks return the cardIndex that can be used to push the updated cardIndex to app state (redux or something else).

By making sure that external changes on the cardIndex match those the swiper performs (increment on swipes, decrement on swipeBack) one can ensure no re-renders occur when not needed.