CascadeView.js
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import React, {Component} from 'react';
import {
View,
Text,
Image,
StyleSheet,
TouchableOpacity,
ScrollView,
Modal,
} from 'react-native';
const checkedImg = require("../img/checked.png");// 选中
const unCheckedImg = require("../img/dati-xuanze-02.png");// 未选中
const defaultHeight = (62);
const titleViewHeight = (24);
const HPading = (16);
const VPading = (6);
/**
* 级联
*/
export default class CascadeView extends Component {
constructor(props) {
super(props);
this.state = {
pickerValue: '',
pickerDataList: [],
showModal: false,
};
this.attrData = this.props.attrData;
// 组件控制数据
this.extendData = JSON.parse(this.attrData.data);
this.dataList = this.extendData.dataContent;
}
showModal() {
this.setState({
showModal: true
})
}
closeModal() {
this.setState({
showModal: false
})
}
// 确定多选
confirmMultiple() {
//
}
render() {
let {name, code, type, description, isRequired, isPreview} = this.attrData;
// dataType固定：STATIC
let {placeholder, dataType, enableFilter} = this.extendData;
return (
<View style={{width: '100%',minHeight:defaultHeight,paddingTop: VPading,paddingHorizontal:HPading,backgroundColor:'#fff'}}>
<TouchableOpacity
style={{
flex:1,
flexDirection: 'row',
width: '100%',
backgroundColor: '#fff',
alignItems: 'center'
}}
activeOpacity={0.8}
onPress={() => this.showModal()}
>
<View style={{flex: 1}}>
<View style={{flexDirection: 'row',height:titleViewHeight,backgroundColor:'#fff'}}>
{isRequired&&<Text style={{ color: "#FF3030" }}>* {" "}</Text>}
{!isRequired&&<Text style={{ color: "#fff" }}>* {" "}</Text>}
<Text style={{fontSize: 16, color: 'rgba(0, 0, 0, 1)', marginBottom: 5}}>{name||""}</Text>
</View>
<Text
style={{
fontSize: 14,
color: (!!this.state.pickerValue && this.state.pickerValue.length > 0)?'black':'#999',
width: 300,
marginLeft:10,
backgroundColor: 'white',
textAlign: 'left',
padding: 5,
}}>
{this.state.pickerValue||placeholder||'请选择'}
</Text>
</View>
<Image style={{width: 16, height: 16}} source={require('../img/bread.png')} resizeMode={'contain'}/>
</TouchableOpacity>
{/** 级联选择 */}
{this.renderCascadSelectModal()}
</View>
);
}
renderCascadSelectModal() {
return(
<Modal animationType={"fade"} transparent={true} visible={this.state.showModal} onRequestClose={() => this.closeModal()}>
{/** 目录弹窗 */}
<View style={{flex: 1}}>
<TouchableOpacity style={styles.modalBg} activeOpacity={1} onPress={() => this.closeModal()}/>
{/** 实体内容 */}
<View style={styles.contentBg}>
{/** 标题栏 */}
<View style={styles.titleBar}>
<TouchableOpacity
style={{paddingLeft: 15, paddingRight: 5}}
activeOpacity={0.8}
onPress={() => this.closeModal()}
>
<Image style={{width: 14, height: 14}}
source={require('../img/loadBack.png')}/>
</TouchableOpacity>
<Text style={styles.modelTitle}>{this.attrData.name}</Text>
{this.extendData && this.extendData.enableMultiple &&
<TouchableOpacity
style={{
justifyContent: "center",
alignItems: "center",
borderRadius: 20,
paddingVertical: 3,
paddingHorizontal: 8,
backgroundColor: global.homeColor
}}
activeOpacity={0.8}
onPress={() => this.confirmMultiple()}
>
<Text style={{fontSize: 14, color: 'white'}}>确定</Text>
</TouchableOpacity>
}
</View>
<View style={{width: '100%', height: 1, backgroundColor: 'rgba(245,245,245,1)'}}/>
{/** 内容 */}
<ScrollView style={{flex: 1}} horizontal={false} showsVerticalScrollIndicator={false}>
{this.state.dataList && this.state.dataList.map((item, index) => this.renderItem(item, index))}
</ScrollView>
</View>
</View>
</Modal>
)
}
renderItem(item, index) {
return (
<TouchableOpacity
key={index}
style={{flexDirection: 'row', width: '100%', alignItems: 'center'}}
activeOpacity={0.8}
onPress={() => {
if (this.extendData.enableMultiple) {
// 多选
let tempArr = this.state.selectDataList;
/*if (item.checked) {
item.checked = false;
tempArr = tempArr.filter(value => value.id !== item.id);
} else {
item.checked = true;
tempArr.push(item)
}
this.setState({
selectDataList: tempArr
})*/
} else {
this.closeModal();
this.setState({
selectData: item,
selectText: item.name
})
this.setSingleResult(item)
}
}}
>
{this.extendData.enableMultiple &&
<Image
source={item.checked ? checkedImg : unCheckedImg}
style={styles.checkedBox}
/>
}
<View style={{flex: 1, marginLeft: 15}}>
<Text style={{fontSize: 16, color: 'rgba(0, 0, 0 , 1)', paddingVertical: 10}}>{this.getItemText(item)}</Text>
<View style={{width: '100%', height: 1, backgroundColor: 'rgba(245,245,245,1)'}}/>
</View>
</TouchableOpacity>
);
}
}
const styles = StyleSheet.create({
modalBg: {
backgroundColor: 'rgba(0,0,0,.5)',
width: '100%',
height: '100%',
display: 'flex',
position: 'absolute'
},
contentBg: {
width: '100%',
flex: 1,
marginTop: 122,
backgroundColor: "rgba(255, 255, 255, 1)",
borderTopLeftRadius: 16,
borderTopRightRadius: 16
},
titleBar: {
flexDirection: "row",
justifyContent: "flex-start",
alignItems: "center",
marginTop: 15,
marginBottom: 10,
marginRight: 15
},
modelTitle: {
flex: 1,
color: "rgba(0, 0, 0, 1)",
fontSize: 16,
textAlign: "center",
justifyContent: "center"
},
checkedBox: {
width: 20,
height: 20,
marginLeft: 8,
},
});