1
我试图从列表中传递一些行数据到下一个屏幕来显示细节，但似乎无法实现它。 这是导览时我是怎么过的道具：React Native：如何将道具从一个屏幕导航到另一个
_renderRow(row,sectionId, rowId, highlightRow) {
var self = this;
let navigate=this.props.navigation;
return (
<TouchableOpacity onPress={() => navigate('ChatList',{row})}>
........//ignored code，而在另一屏幕ChatList.js：
import React, { Component } from 'react';
import {
StyleSheet,
Text,
View,
TouchableOpacity,
TextInput,
Image
} from 'react-native';
import { StackNavigator } from 'react-navigation';
const ChatList =() => {
return (
<View>
</View>
);
}
ChatList.navigationOptions = {
//trying to set the title from the data sent around here
title: 'ChatList Title',
headerStyle: {
backgroundColor: '#2196F3',
},
headerTitleStyle: {
color: 'white',
},
headerBackTitleStyle: {
color: 'white',
},
headerTintColor: 'white',
};
export default ChatList另外要注意，不同于0，我对堆栈导航有不同的实现.Checkout我这里整个实施https://gist.github.com/SteveKamau72/f04b0a3dca03a87d604fe73767941bf2
这里是从_renderRow所在的满级：
ChatGroup.js
/** ChatGroup.js**/
//This code is component for file App.js to display group of chats
import React, { Component } from 'react';
import {
StyleSheet,
ListView,
Text,
View,
Image,
TouchableOpacity
} from 'react-native';
const data = [
{
name: "Kasarini",
last_chat: {
updated_at:"22:13",
updated_by: "Steve Kamau",
chat_message: "Lorem Ipsum is pretty awesome if you know it"
},
thumbnail: "https://randomuser.me/api/portraits/thumb/men/83.jpg"
},
{
name: "Kabete",
last_chat: {
updated_at:"20:34",
updated_by: "Tim Mwirabua",
chat_message: "Lorem Ipsum is pretty awesome if you know it"
},
thumbnail: "https://randomuser.me/api/portraits/thumb/men/83.jpg"
},
{
name: "Kiambuu",
last_chat: {
updated_at:"19:22",
updated_by: "Maureen Chubi",
chat_message: "Lorem Ipsum is pretty awesome if you know it"
},
thumbnail: "https://randomuser.me/api/portraits/thumb/men/83.jpg"
},
{
name: "UnderPass",
last_chat: {
updated_at:"17:46",
updated_by: "Faith Chela",
chat_message: "Lorem Ipsum is pretty awesome if you know it"
},
thumbnail: "https://randomuser.me/api/portraits/thumb/men/83.jpg"
},
]
export default class UserListView extends Component {
constructor() {
super();
const ds = new ListView.DataSource({rowHasChanged: this._rowHasChanged});
this.state = {
dataSource: ds.cloneWithRows(data)
}
}
render() {
return (
<ListView
dataSource={this.state.dataSource}
renderRow={this._renderRow.bind(this)}
enableEmptySections={true} />
)
}
_renderRow(row,sectionId, rowId, highlightRow) {
var self = this;
return (
<TouchableOpacity activeOpacity={0.9} onPress={() => navigate('ChatList',{ user: 'Lucy' })}>
<View style={styles.container}>
<Image
style={styles.groupChatThumbnail}
source={{uri: row.thumbnail}}/>
<View>
<View style={{flexDirection:'row', justifyContent:'space-between', width:280}}>
<Text style={styles.groupNameText}>{row.name} </Text>
<Text style={styles.groupUpdatedAtText}>{row.last_chat.updated_at}</Text>
</View>
<View style={{ flexDirection:'row', alignItems:'center', marginTop: 5}}>
<Text style={styles.groupUpdatedByText}>{row.last_chat.updated_by} : </Text>
<View style={{flex: 1}}>
<Text ellipsizeMode='tail' numberOfLines={1}style={styles.groupChatMessageText}>{row.last_chat.chat_message} </Text>
</View>
</View>
</View>
</View>
</TouchableOpacity>
)
}
_rowHasChanged(r1, r2) {
return r1 !== r2
}
highlightRow() {
alert('Hi!');
}
}
const styles = StyleSheet.create({
container:{
alignItems:'center',
padding:10,
flexDirection:'row',
borderBottomWidth:1,
borderColor:'#f7f7f7',
backgroundColor: '#fff'
},
groupChatContainer:{
display: 'flex',
flexDirection: 'row',
},
groupNameText:{
marginLeft:15,
fontWeight:'600',
marginTop: -8,
color: '#000'
},
groupUpdatedAtText :{
color:'#333', fontSize:10, marginTop: -5
},
groupChatThumbnail:{
borderRadius: 30,
width: 50,
height: 50 ,
alignItems:'center'
},
groupUpdatedByText:{
fontWeight:'400', color:'#333',
marginLeft:15, marginRight:5
},
});
您可以显示_renderRow属于哪个类的构造函数吗？ – Ismailp
如果你正在尝试在兄弟组件之间传递数据，这会是一个合理的解释吗？ – SoZettaSho
@Ismailp查看我的更新代码。 –