react-native-flatlist

How to make load more with FlatList of React Native (Not infinite) I've done this, but unfortunately it loads as infinitely. This is my code snippet <FlatList data={this.props.data} renderItem={({ item, separators }) => ( <TouchableHighlight onPress={() => this._onPress(item)} onShowUnderlay={separators.highlight} onHideUnderlay={separators.unhighlight} > <Text> {item.title} </Text> </TouchableHighlight> )} keyExtractor={item => item.id} ListFooterComponent={this.renderFooter} onEndReached={this.props.handleLoadMore} onEndThreshold={0} /> And my handleLoadMore handleLoadMore = () => { console

Here's the code: <ScrollView> { tree.myPoiComments.CommentInfo && tree.myPoiComments.CommentInfo.length>0 && <FlatList data={tree.myPoiComments.CommentInfo} keyExtractor = {(item, index) => item.CommentId} ListHeaderComponent = {() => <View> <Text style={styles.listHeader}>My Comments</Text> </View>} renderItem= {({item}) => <CommentItem comment={item} owner={1} />} /> } { tree.poiComments.CommentInfo && tree.poiComments.CommentInfo.length>0 && <FlatList data={tree.poiComments.CommentInfo} keyExtractor = {(item, index) => item.CommentId} onEndReachedThreshold={1} onEndReached={(info) => {

Trying to alternate colors in React Natives Flatlist . I believe I need rowID or something similar to do it. This is what I've got so far: let colors = ['#123456', '#654321', '#fdecba', '#abcdef']; <View > <FlatList style={{backgroundColor: colors[this.index % colors.length]}} data={this.state.dataSource} renderItem={({item}) => <Text style={styles.listStyle}>{item.title}, {item.releaseYear}</Text>} keyExtractor={(item, index) => index} /> </View> Any ideas? The renderItem callback argument has a property index that allows you to access the row index for the current row: <View > <FlatList data

I'm trying to render a FlatList from json fetched from an api, but I keep getting this error: Warning: Each child in an array or iterator should have a unique "key" prop. Check the render method of `VirtualizedList`. Relevant code: <FlatList data={this.props.tunes} keyExtractor={(item, index) => item.id} renderItem={({item}) => { <Item key={item.id} title={item.title} composer={item.composer} year={item.year} /> }} /> I'm sure there is a simple fix for this, but after a few days of trying different things I haven't found it. Thanks for your help! Looks like you need to change key to id as you

I'm trying to wire up a press handler for an image that's nested within a React Native FlatList. I've verified that the function is being passed in via props, by calling the function directly inside my component and that worked fine. Below is a reduced test case. I've also tried setting the onPress on the Image, with identical results. const PostList = ({posts, onActLike, currentUser}) => { return ( <FlatList data={ posts } keyExtractor={ (item) => item.id } renderItem={ ({item}) => { return ( <View> <Image source={ {uri: item.media.url} } resizeMode="cover" /> <View> <View onPress={ (item) =>

I want to select items using FlatList like when you select multiple photos on your photo galery (in this case, I am using a flatlist with 2 rows like a grid of 2x10). I want to select (for example) 3 items using onLongPress. Something like this, but with 2 rows. What about this: Every item rendered would have an onLongPress , and an isPicked property. Initially, and in renderItem() , you would implement an if statement that either renders checked square or empty square every time an item executes executes; To indicate if the item is selected or not (based on isPicked ). onLongPress invokes

I'm using ReactNative's new List component - FlatList. It seems like FlatList renders all items at once even though the cell isn't actually visible on the screen. <FlatList data={this.props.items} keyExtractor={(item, index) => generateKey()} renderItem={this.renderStrip}/> renderItem = ({item}) => { console.warn('rendered!'); return <View style={{height:200, height: 100}} /> } Setting 30 items and seems like 'rendered' warning was called according to the total number of the items. I thought FlatList is similar to the way RecycleView in Android works, render an item only when it's about to be