React native 如何在平面列表中隐藏/显示文本输入?
我是react native的新手,我需要在每个评论回复选项上显示和隐藏文本输入。如何唯一化每个部分,以便我可以在每次单击按钮时隐藏和显示文本输入 以下是我的简单列表:React native 如何在平面列表中隐藏/显示文本输入?,react-native,react-native-flatlist,React Native,React Native Flatlist,我是react native的新手,我需要在每个评论回复选项上显示和隐藏文本输入。如何唯一化每个部分,以便我可以在每次单击按钮时隐藏和显示文本输入 以下是我的简单列表: <FlatList data={item.comments} keyExtractor={this._keyExtractor} renderItem={this.renderRowItem} extraData={this.state} /> 在replyboxShow状态下,所有项目都将显示或隐
<FlatList
data={item.comments}
keyExtractor={this._keyExtractor}
renderItem={this.renderRowItem}
extraData={this.state}
/>
在replyboxShow状态下,所有项目都将显示或隐藏, 我创建replyboxShowId状态来保存元素的item\u id 你想表现出来
renderRowItem = (itemData) => {
Moment.locale('en');
return (
<View style={styles.commentSection}>
<View style={{flexDirection:'row'}}>
<View style={{flex:1,flexDirection:'row'}}>
<Image style={{ height: 30,width: 30,borderRadius: 15, marginTop:8}}
source={{ uri: this.state.profile_image }} resizeMode='cover' />
<View style={{width:width,paddingHorizontal:10,paddingRight:10,borderBottomColor:'#D2D0D1',borderBottomWidth:1,paddingBottom:10}}>
<View style={{flexDirection:'row',paddingTop:5}}>
<Text style={{fontWeight:'600',fontSize:14}}>
{itemData.item.firstName} {itemData.item.surname}</Text>
<Text style={{color:'grey',fontWeight:'500',fontSize:12,paddingHorizontal:20}}>
{Moment(itemData.item.dateCreated).format('d MMM YYYY')}</Text>
</View>
<Text style={{fontWeight:'500',color:'grey',marginTop:5}}>
{itemData.item.comment}</Text>
<Text onPress={this.ShowHideTextComponentView.bind(this,itemData.item._id)} style={{width:width*0.8,color:"#F766FF",textAlign:'right',alignSelf:'stretch',fontSize:12,fontWeight:'600'}}>
Reply</Text>
<View>
<FlatList
data={itemData.item.replies}
keyExtractor={this._keyExtractor}
renderItem={this.renderRowReply}
/>
</View>
<View>
{
this.state.replyBoxShowId === itemData.item._id ?
<View style={{flex:1,flexDirection:'row',width:width*0.6,marginLeft:10}}>
<TextInput
style = {[styles.inputReplyBox,
!this.state.postValidate ? styles.error : null]}
placeholder="Enter message here"
placeholderTextColor="grey"
onChangeText = {reply => this.setState({reply})}
/>
<TouchableOpacity style={{position: 'absolute',right:6,top:5,alignSelf:'stretch'}}
onPress={() => this.replyCom(itemData.item._id)}>
<Icon name="paper-plane-o" size={20} color="#F766FF" />
</TouchableOpacity>
</View>
: null
}
</View>
</View>
</View>
</View>
</View>
)
}
在replyboxShow状态下,所有项目都将显示或隐藏, 我创建replyboxShowId状态来保存元素的item\u id 你想表现出来
renderRowItem = (itemData) => {
Moment.locale('en');
return (
<View style={styles.commentSection}>
<View style={{flexDirection:'row'}}>
<View style={{flex:1,flexDirection:'row'}}>
<Image style={{ height: 30,width: 30,borderRadius: 15, marginTop:8}}
source={{ uri: this.state.profile_image }} resizeMode='cover' />
<View style={{width:width,paddingHorizontal:10,paddingRight:10,borderBottomColor:'#D2D0D1',borderBottomWidth:1,paddingBottom:10}}>
<View style={{flexDirection:'row',paddingTop:5}}>
<Text style={{fontWeight:'600',fontSize:14}}>
{itemData.item.firstName} {itemData.item.surname}</Text>
<Text style={{color:'grey',fontWeight:'500',fontSize:12,paddingHorizontal:20}}>
{Moment(itemData.item.dateCreated).format('d MMM YYYY')}</Text>
</View>
<Text style={{fontWeight:'500',color:'grey',marginTop:5}}>
{itemData.item.comment}</Text>
<Text onPress={this.ShowHideTextComponentView.bind(this,itemData.item._id)} style={{width:width*0.8,color:"#F766FF",textAlign:'right',alignSelf:'stretch',fontSize:12,fontWeight:'600'}}>
Reply</Text>
<View>
<FlatList
data={itemData.item.replies}
keyExtractor={this._keyExtractor}
renderItem={this.renderRowReply}
/>
</View>
<View>
{
this.state.replyBoxShowId === itemData.item._id ?
<View style={{flex:1,flexDirection:'row',width:width*0.6,marginLeft:10}}>
<TextInput
style = {[styles.inputReplyBox,
!this.state.postValidate ? styles.error : null]}
placeholder="Enter message here"
placeholderTextColor="grey"
onChangeText = {reply => this.setState({reply})}
/>
<TouchableOpacity style={{position: 'absolute',right:6,top:5,alignSelf:'stretch'}}
onPress={() => this.replyCom(itemData.item._id)}>
<Icon name="paper-plane-o" size={20} color="#F766FF" />
</TouchableOpacity>
</View>
: null
}
</View>
</View>
</View>
</View>
</View>
)
}
请添加我上次添加的ShowHideTextComponentView函数代码。请查收,谢谢!请添加我上次添加的ShowHideTextComponentView函数代码。请查收,谢谢!我正在尝试此代码,但出现错误-->>ReferenceError:找不到变量:ShowHideTextComponentViewsame错误?找不到变量:ShowHideTextComponentView?再次检查您的代码,我忘记了“this”。在第一篇文章中。检查本文以了解如何将数据绑定到函数我正在尝试此代码,但出现错误-->>引用错误:找不到变量:ShowHideTextComponentView相同的错误?找不到变量:ShowHideTextComponentView?请再次检查代码,我忘记了第一篇文章中的“this”。查看本文了解如何将数据绑定到函数
renderRowItem = (itemData) => {
Moment.locale('en');
return (
<View style={styles.commentSection}>
<View style={{flexDirection:'row'}}>
<View style={{flex:1,flexDirection:'row'}}>
<Image style={{ height: 30,width: 30,borderRadius: 15, marginTop:8}}
source={{ uri: this.state.profile_image }} resizeMode='cover' />
<View style={{width:width,paddingHorizontal:10,paddingRight:10,borderBottomColor:'#D2D0D1',borderBottomWidth:1,paddingBottom:10}}>
<View style={{flexDirection:'row',paddingTop:5}}>
<Text style={{fontWeight:'600',fontSize:14}}>
{itemData.item.firstName} {itemData.item.surname}</Text>
<Text style={{color:'grey',fontWeight:'500',fontSize:12,paddingHorizontal:20}}>
{Moment(itemData.item.dateCreated).format('d MMM YYYY')}</Text>
</View>
<Text style={{fontWeight:'500',color:'grey',marginTop:5}}>
{itemData.item.comment}</Text>
<Text onPress={this.ShowHideTextComponentView.bind(this,itemData.item._id)} style={{width:width*0.8,color:"#F766FF",textAlign:'right',alignSelf:'stretch',fontSize:12,fontWeight:'600'}}>
Reply</Text>
<View>
<FlatList
data={itemData.item.replies}
keyExtractor={this._keyExtractor}
renderItem={this.renderRowReply}
/>
</View>
<View>
{
this.state.replyBoxShowId === itemData.item._id ?
<View style={{flex:1,flexDirection:'row',width:width*0.6,marginLeft:10}}>
<TextInput
style = {[styles.inputReplyBox,
!this.state.postValidate ? styles.error : null]}
placeholder="Enter message here"
placeholderTextColor="grey"
onChangeText = {reply => this.setState({reply})}
/>
<TouchableOpacity style={{position: 'absolute',right:6,top:5,alignSelf:'stretch'}}
onPress={() => this.replyCom(itemData.item._id)}>
<Icon name="paper-plane-o" size={20} color="#F766FF" />
</TouchableOpacity>
</View>
: null
}
</View>
</View>
</View>
</View>
</View>
)
}
ShowHideTextComponentView = (id) =>{
this.setState({
replyBoxShowId : id
})
}