【发布时间】：2021-10-01 11:48:05
【问题描述】：
问题
see the screenshot of probleme //下面的代码是加载滑块的..您还可以在 ClassFlatListRender.js 中找到下面的 sn-p ，当元素的 id 通过等于所选 Id 的 FlatList 传递时，音频滑块应该可以工作，但是如果我触发一个音频文件元素所有滑块都在移动
{id == this.state.selectedOptionId ?
(<View style={[styles.viewBar, { flexDirection: 'row', }]}>
<View style={[styles.viewBarPlay, { width: playWidthMessage }]} />
</View)
:
<View><Text>no slider<Text></View>}
代码
我的代码结构是这样的：我有一个包含所有逻辑和状态的容器组件， 其中包含一个 FlatList 组件，该组件又包含一个自定义展示列表。
Container
Custom list component that includes the FlatList component and the renderItem method
invokes classFlatList component (presentational, stateless)
容器包含这个组件
<CustomList
items={this.state.data}
/>
自定义列表：
export class CustomList extends Component {
render() {
const renderItem = ({ item }) => {
return (
<ClassFlatListRender
message={item.message}
id={item.id}
user={item.user}
timestamp={item.timestamp}
heights={item.heights}
url={item.url}
audioLength={item.audioLength}
type={item.type}
/>
)
}
let { items } = this.props
return (
<View style={styles.container}>
< FlatList
style={styles.container}
data={items.slice().sort((a, b) => b.timestamp - a.timestamp)}
// data={data}
renderItem={renderItem}
inverted={true}
extraData={items}
keyExtractor={(items) => `${items.timestamp}`}
/>
</View>
)
}
}
ClassFlatListRender.js
export class ClassFlatListRender extends React.Component {
constructor() {
super();
this.state = {
update: false,
currentPositionSec: 0,
currentDurationSec: 0,
playTime: '00:00:00',
duration: '00:00:00',
id: '',
tempId: '',
selectedOptionId: '',
setId: '',
};
this.audioRecorderPlayer = new AudioRecorderPlayer();
this.audioRecorderPlayer.setSubscriptionDuration(0.09); // optional. Default is 0.1
}
onStartPlay = async (id, url) => {
console.log('onStartPlay');
//? Custom path
// const msg = await this.audioRecorderPlayer.startPlayer(this.path);
//? Default path
console.log("arvinf", url)
const msg = await this.audioRecorderPlayer.startPlayer(url);
console.log("msg", msg)
const volume = await this.audioRecorderPlayer.setVolume(1.0);
console.log(`file: ${msg}`, `volume: ${volume}`);
this.audioRecorderPlayer.addPlayBackListener((e) => {
this.setState({
currentPositionSec: e.currentPosition,
currentDurationSec: e.duration,
// playWidth: (e.currentPosition / e.duration) * (screenWidth - 300)
// playTime: this.audioRecorderPlayer.mmssss(
// Math.floor(e.currentPosition),
// ),
// duration: this.audioRecorderPlayer.mmssss(Math.floor(e.duration)),
});
});
};
onPausePlay = async () => {
await this.audioRecorderPlayer.pausePlayer();
};
renderElement = (id, audioLength) => {
if (this.state.selectedOptionId == id) {
// this.onStartPlay(url)
return (
<Fcon name={this.state.selectedOptionId == id ? 'play' : 'pasue'} size={24} color={'white'} />
)
}
if (this.state.selectedOptionId !== id || this.state.currentPositionSec == this.state.duration) {
// this.onPausePlay(url)
return (
<Fcon name={'play'} size={24} color={'white'} />
)
}
}
checkFunction = async (id, url) => {
console.log("id: before", id)
await this.setState({
selectedOptionId: id,
setId: id
})
console.log('id:after', this.state.selectedOptionId)
id == this.state.setId ? this.onStartPlay(id, url) : this.onPausePlay()
// return this.state.selectedOptionId
}
render() {
let { id, user, url, heights, message, audioLength, type } = this.props;
let playWidthMessage =
(this.state.currentPositionSec / this.state.currentDurationSec) *
(screenWidth - 300);
if (!playWidthMessage) {
playWidthMessage = 0;
}
return (
<View id={id}>
{
url.endsWith(".jpg") ?
< View key={id} style={[user == 1 ? styles.receiver : styles.sender, { paddingHorizontal: 14, paddingVertical: 8, borderRadius: heights > 50 ? 20 : 50 }]}>
<View style={{ alignItems: 'center', }}>
{console.log("address", url)}
<Image
resizeMode="contain"
// resizeMethod="scale"
style={{ width: 200, height: 200 }}
source={{ uri: url, width: 200, height: 200 }}
// source={{ uri: "https://picsum.photos/200", width: 200, height: 200 }}
// source={require("https://ibb.co/hM8BbY5")}
/>
</View>
</View> : null
}
{
url.endsWith(".mp3") ?
(
<View key={this.props.id} style={[user == 1 ? styles.receiver : styles.sender, { paddingHorizontal: 14, paddingVertical: 8, borderRadius: heights > 50 ? 20 : 50 }]}>
<View style={[styles.viewPlayer, { backgroundColor: user == 1 ? darkgrey : '#0096FF', alignSelf: 'center', borderRadius: 50, flexDirection: 'row', justifyContent: "center", alignItems: 'center' }]}>
{/* line */}
<TouchableOpacity activeOpacity={0.5} onPress={() => {
this.checkFunction(id, url)
}} style={{ borderRadius: 50, width: 36, height: 36, justifyContent: 'center', alignItems: 'center' }}>
<View>
{this.renderElement(id, url, audioLength)}
</View>
</TouchableOpacity>
<View >
<TouchableOpacity
style={[styles.viewBarWrapper, { width: screenWidth - 300 }]}
onPress={this.onStatusPress}
>
{id == this.state.setId ?
(<View style={[styles.viewBar, { flexDirection: 'row', }]}>
{/* {console.log("playWidth:", this.state.playWidth)} */}
<View style={[styles.viewBarPlay, { width: playWidthMessage }]} />
</View>
)
: <View><Text>ddd</Text></View>}
</TouchableOpacity>
</View>
<Text style={[styles.txtRecordCounter, { color: 'white' }]}>{audioLength}</Text>
</View>
</View >) : null
}
{
type == "txt" ?
// && user == 1 ?
<View key={id} >
<TouchableOpacity onPress={async () => await this.setState({ tempId: id })} style={[styles.receiver, { borderRadius: heights > 50 ? 20 : 50, backgroundColor: this.state.tempId == id ? 'pink' : 'yellow' }]}>
<Text style={styles.receiverText}>{message}</Text>
</TouchableOpacity>
</View> : null
}
</View >
)
}
}
【问题讨论】：
标签： reactjs react-native react-native-flatlist flatlist