Question

我很反应原生。我想在我的应用中实现刷卡，因为我使用了react-native-tinder-swipe-cards。

是否可以在从左向右滑动时显示上一张卡片。因为即使我递减索引的值总是显示下一张卡，它位于数组的下一个索引处。

我现在正在尝试的是：

 handleYup(card) {
    console.log("yup",card)
    //Alert.alert("Card",card.id+"");
    this.setState({
        cardYup: true
    })

}

handleNope(card) {
    console.log("nope")
    //Alert.alert("Card", card.id + "");
    this.setState({
        cardNope: true
    })

}

cardRemoved(index) {
    if(this.state.cardYup){
        index=index-2;
        this.setState({
            cardYup:false
        })
    }
    else if (this.state.cardNope) {
        //index = index +1
        this.setState({
            cardNope: false
        })
    }
    console.log(`The index is ${index}`);
    Alert.alert("Index", index+"");

    let CARD_REFRESH_LIMIT = 1

    if (this.state.cards.length - index <= CARD_REFRESH_LIMIT) {
        console.log(`There are only ${this.state.cards.length - index - 1} cards left.`);

        if (!this.state.outOfCards) {
            //console.log(`Adding ${cards2.length} more cards`)
            Alert.alert("No Cards","No morecards present")

            this.setState({
                outOfCards: true
            })
        }

    }

}

Answer 1

当然可以在现有库中添加一些功能，但由于时间限制，我将库从react-native-tinder-swipe-cards.切换到react-native-deck-swiper

在应用所有这些道具时，我能够获得所需的功能

            <Swiper
                ref={swiper => {
                    this.swiper = swiper
                }}
                goBackToPreviousCardOnSwipeRight={true}
                showSecondCard={false}
                onSwiped={this.onSwiped}
                onTapCard={this.swipeLeft}
                cards={this.state.cards}
                cardIndex={id}
                renderCard={this.renderCard}
                verticalSwipe={false}
                cardVerticalMargin={5}
                cardHorizontalMargin={5}
                onSwipedAll={this.onSwipedAllCards}
                cardStyle={{height:520}}>
            </Swiper>

从左到右显示上一张卡片以原生方式刷卡

1 个答案: