CourseListItem.js
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import React, { Component } from "react";
import { Image, StyleSheet, Text, TouchableOpacity, View, DeviceEventEmitter } from "react-native";
import _ from "lodash";
import { width, zoomH, zoomW } from "../../utils/getSize";
import StashHead from "../../widget/StashHead";
import { NoDoublePress } from "../../utils/utils";
export default class CourseListItem extends Component {
constructor(props) {
super(props);
this.state = {
data: ""
};
}
componentDidMount() {
this.dataHandle(this.props.item);
}
compnentWillUnmount() {
}
/**
* 接口返回数据处理
* @param {*} data
*/
dataHandle(data) {
console.log('-------data-------',data);
if (!!!data) {
// xnToast("暂无数据!!!");
return;
}
let attachmentList = [];
let singleItem = {
id: "",
name: "",
pictureUrl: [],
description: ""
};
let urls = {
url: ""
};
urls.url = data.pictureUrl;
attachmentList.push(urls);
singleItem.id = data.id;
singleItem.name = data.name;
singleItem.pictureUrl = attachmentList;
singleItem.description = data.description;
this.setState({
data: singleItem
});
}
_detailClick = id => {
//详情
// this.props.nav.navigate("QuestionList", {
// id: id,
// userId: this.state.data.userId
// });
this.props.nav.navigate("ClassGrade", {id: id});
};
renderView() {
return (
<TouchableOpacity
style={styles.itemBackground}
activeOpacity={0.8}
onPress={() => {
NoDoublePress.onPress(() => {
this._detailClick(this.state.data.id);
});
}}
>
<View>
{/*文字*/}
<Text
style={{
marginTop: 14 / zoomH,
marginLeft: 15 / zoomW,
marginRight:15/zoomW,
fontSize: 18,
flex:1,
color: "rgba(0,0,0,0.85)" ,
fontWeight: "bold"
}}
numberOfLines={2}
>
{this.state.data.name}
</Text>
{/*图片*/}
{!!this.state.data.pictureUrl &&
this.state.data.pictureUrl.length > 0 && (
<View
style={{
flexDirection: "row",
alignItems: "center",
flexWrap: "wrap",
paddingLeft:15/zoomW,
paddingRight:15/zoomW,
marginTop: 14
}}
>
{this.state.data.pictureUrl
? this.state.data.pictureUrl.map((v, i) =>
this.renderImageItem(v, i)
)
: null}
</View>
)}
</View>
<TouchableOpacity activeOpacity={0.8} style={styles.starItem}>
<Text
style={{
fontSize: 12,
color: "#000000",
marginTop: 12 / zoomH,
marginBottom: 14 / zoomH,
marginLeft: 15 / zoomW,
opacity: 0.45
}}
>
{this.state.data.description}
</Text>
</TouchableOpacity>
</TouchableOpacity>
);
}
//渲染图片列表item
renderImageItem(item, i) {
let itemWidth = (width - 10-2*15/zoomW) / 3;
return (
<View
key={i}
style={[
i < 2 ? { marginRight: 5 } : null,
{
width: itemWidth,
height: itemWidth,
backgroundColor: "#FFFFFF"
}
]}
>
<Image
style={{ width: "100%", height: "100%" }}
source={{
uri: item.url,
cache: "force-cache"
}}
resizeMode="cover"
/>
</View>
);
}
render() {
return (
<View>
{_.isEmpty(this.state.data) ? null : <View>{this.renderView()}</View>}
</View>
);
}
}
const styles = StyleSheet.create({
itemBackground: {
backgroundColor: "#FFFFFF"
},
starItem: {
flex: 1,
justifyContent: "flex-start",
alignItems:'center',
flexDirection: "row"
}
});