Comment implémenter la fonction de sélecteur d'adresse React Native

Cet article présente principalement en détail la fonction de sélection d'adresses d'imitation React Native. Il a une certaine valeur de référence. Les amis intéressés peuvent s'y référer. J'espère que cela pourra aider tout le monde.

Chef de produit : "Vous comprenez, glissez ici pour faire apparaître le menu, et ensuite une animation clignotante est nécessaire. De plus, je pense que cet onglet peut être déroulant, vous comprenez ?

Designer : « Arrêtez de dire des bêtises et montrez-moi le produit que vous souhaitez copier. »

…

Ensuite, imitons le sélecteur d'adresse de quelqu'un d'autre

import React, { Component, PropTypes } from 'react';
import {
 ViewPropTypes,
 StyleSheet,
 View,
 TouchableOpacity,
 TouchableNativeFeedback,
 Platform,
 Animated,
 Text
} from 'react-native';

export default class SelectCityTabBar extends Component {
 //属性声名
 static propTypes = {
  goToPage: PropTypes.func,
  activeTab: PropTypes.number,
  tabs: PropTypes.array,
  backgroundColor: PropTypes.string,
  activeTextColor: PropTypes.string,
  inactiveTextColor: PropTypes.string,
  textStyle: Text.propTypes.style,
  tabStyle: ViewPropTypes.style,
  renderTab: PropTypes.func,
  underlineStyle: ViewPropTypes.style,
 };
 //默认属性
 static defaultProps = {
  activeTextColor: '#FA3D4F',
  inactiveTextColor: 'black',
  backgroundColor: null,
 }

 renderTab(name, page, isTabActive, onPressHandler) {
  const { activeTextColor, inactiveTextColor, textStyle, } = this.props;
  const textColor = isTabActive ? activeTextColor : inactiveTextColor;
  const fontWeight = isTabActive ? 'bold' : 'normal';
  const viewStyle = isTabActive ? [styles.tab, { borderBottomWidth: Constant.sizepiderLarge, borderColor: Constant.colorPrimary }] : styles.tab;

  if (Platform.OS !== 'ios') {
   return <TouchableNativeFeedback
    delayPressIn={0}
    background={TouchableNativeFeedback.SelectableBackground()}
    key={name + page}
    accessible={true}
    accessibilityLabel={name}
    accessibilityTraits=&#39;button&#39;
    onPress={() => onPressHandler(page)}
   >
    <View style={viewStyle}>
     <Text style={[{ color: textColor, fontWeight, }, textStyle,]}>
      {name}
     </Text>
    </View>
   </TouchableNativeFeedback>
  }

  return <TouchableOpacity
   key={name + page}
   accessible={true}
   accessibilityLabel={name}
   accessibilityTraits=&#39;button&#39;
   onPress={() => onPressHandler(page)}
  >
   <View style={viewStyle}>
    <Text style={[{ color: textColor, fontWeight, }, textStyle,]}>
     {name}
    </Text>
   </View>
  </TouchableOpacity>;
 }

 render() {
  return (
   <View style={{ flexDirection: &#39;row&#39;, borderBottomWidth: Constant.sizepiderNormal, borderColor: Constant.colorpider }}>
    {this.props.tabs.map((name, page) => {
     const isTabActive = this.props.activeTab === page;
     const renderTab = this.props.renderTab || this.renderTab;
     return this.renderTab(name, page, isTabActive, this.props.goToPage);
    })}
   </View>
  );
 }
}



const styles = StyleSheet.create({
 tab: {
  alignItems: &#39;center&#39;,
  justifyContent: &#39;center&#39;,
  paddingBottom: 10,
  marginLeft: 10,
 },
 tabs: {
  height: 50,
  flexDirection: &#39;row&#39;,
  justifyContent: &#39;space-around&#39;,
  borderWidth: 1,
  borderTopWidth: 0,
  borderLeftWidth: 0,
  borderRightWidth: 0,
  borderColor: &#39;#ccc&#39;,
 },
});

Composant npm react-native-scrollable-tab-view

import React, { Component } from 'react';
import {
 StyleSheet,
 View,
 ScrollView,
 Dimensions,
 TouchableOpacity,
 InteractionManager,
 Platform,
 UIManager,
 Text
} from 'react-native';
import ScrollableTabView from 'react-native-scrollable-tab-view';
import SelectCityTabBar from './SelectCityTabBar'
import AREA_JSON from '../../util/area.json';
const { height, width } = Dimensions.get('window');

export default class AddressSelect extends Component {

 static defaultProps = {
  commitFun: function (value) {
   console.log(value);
  },
  dissmissFun: function () {

  },
  lastAddress: null,
 };

 constructor(props) {
  super(props);
  if (Platform.OS === 'android') {
   UIManager.setLayoutAnimationEnabledExperimental(true)
  }
  const { lastAddress } = props;
  let selectAddress = this.initAddress(lastAddress);
  this.state = {
   selectAddress
  }
 }

 initAddress(lastAddress) {
  let selectAddress = [
   {
    value: null,
    label: null,
    children: AREA_JSON,
   }, {
    value: null,
    label: null,
    children: null,
   }, {
    value: null,
    label: null,
    children: null,
   }];
  let array = null;

  function fun(array, value) {
   for (let item of array) {
    if (item.value + '' === value + '') {
     return item;
    }
   }
  }
  try {
   selectAddress = selectAddress.map((item, index) => {
    let result = fun(array ? array : AREA_JSON, lastAddress[index].value);
    if (result.children) {
     array = result.children;
    }
    return result;
   });
  } catch (e) {
   console.log('-----e-', e);
  }
  return selectAddress
 }


 /**
  * 列表行
  * @param item
  * @param i
  * @returns {XML}
  */
 renderListItem(item, i) {
  let itemStyle = styles.itemStyle;
  let textStyle = styles.itemText;
  let { selectAddress } = this.state;
  if (item.label === selectAddress[i].label) {
   itemStyle = [itemStyle];
   textStyle = [textStyle, { color: 'red' }]
  }
  return (
   <TouchableOpacity
    style={itemStyle}
    key={i + item.label}
    onPress={() => {
     this.pressItem(item, i)
    }}
   >
    <Text style={textStyle}>{item.label}</Text>
   </TouchableOpacity>
  )
 }

 /**
  * 点击列表事件
  * @param item 选中数据
  * @param i 选中行数
  */
 pressItem(item, i) {
  let { selectAddress } = this.state;
  const initObj = {
   value: null,
   label: null,
   children: null,
  }
  let tempIndex = 0;
  if (i === 0) {
   selectAddress[0] = item;
   selectAddress[1] = initObj;
   selectAddress[2] = initObj;
   tempIndex = 1
  } else if (i === 1) {
   selectAddress[1] = item;
   selectAddress[2] = initObj;
   tempIndex = 2
  } else {
   selectAddress[2].value = item.value;
   selectAddress[2].label = item.label;
   tempIndex = 2
   let address = [
    {
     label: selectAddress[0].label,
     value: selectAddress[0].value
    },
    {
     label: selectAddress[1].label,
     value: selectAddress[1].value
    },
    {
     label: selectAddress[2].label,
     value: selectAddress[2].value
    }
   ]
   this.props.commitFun && this.props.commitFun(address);
   this.props.dissmissFun && this.props.dissmissFun();
   return null;

  }
  this.setState({ selectAddress });
  InteractionManager.runAfterInteractions(() => {
   this.tabView.goToPage(tempIndex)
  })

 }

 render() {
  const { selectAddress } = this.state;
  return (
   <View style={styles.container}>
    <View style={{ width: width, height: 40, flexDirection: &#39;row&#39;, justifyContent: &#39;center&#39;, alignItems: &#39;center&#39;, }}>
     <Text>所在地区</Text>
    </View>
    <ScrollableTabView
     ref={(tabView) => {
      this.tabView = tabView;
     }}
     renderTabBar={() => <SelectCityTabBar />}
    >
     {selectAddress.map((obj, i) => {
      let array = (i === 0) ? AREA_JSON : selectAddress[i - 1].children;
      if (array) {
       return (
        <ScrollView
         key={i}
         tabLabel={obj.label || &#39;请选择&#39;}
         style={styles.scrollStyleList}
        >
         {array && array.map((obj2, j) => {
          return this.renderListItem(obj2, i)
         })}
        </ScrollView>
       )
      }
     })}
    </ScrollableTabView>
   </View>
  );
 }
}

const styles = StyleSheet.create({
 container: {
  height: height * 0.6,
  backgroundColor: &#39;#F5FCFF&#39;,
 },
 scrollStyleList: {
  width: width,
  marginBottom: Constant.sizeMarginDefault,
  marginTop: Constant.sizeMarginDefault,
 },
 itemStyle: {
  marginTop: 5,
  width: width,
  height: 35,
  marginLeft: Constant.sizeMarginDefault,
  justifyContent: &#39;center&#39;
 },
 itemText: {
  fontSize: 15,
  color: &#39;#333333&#39;
 },

Utilisation :

import React, {Component} from 'react';
import {
 StyleSheet,
 View,
 TouchableOpacity,
 Alert,
 ScrollView,
 ART,
 TouchableHighlight,
 ListView,
 Dimensions,
 Text
} from 'react-native';

import {ReactNavComponent, Widget} from 'rn-yunxi';
import AddressSelect from '../../app-widget/address-select/index'

export default class extends React.Component {

 render() {
  return (
   <TouchableOpacity style={{flex:1, justifyContent:&#39;center&#39;, alignItems:&#39;center&#39;}} onPress={() => this.openAddressSelect()}>
    <Text >地址选择</Text>
   </TouchableOpacity>
  );

 }

 openAddressSelect() {

  Widget.Popup.show( // 这边使用自己封装的modal嵌套地址选择器
   <AddressSelect
    commitFun={(area) => this.onSelectArea(area)}
    dissmissFun={() => Widget.Popup.hide()}
   />,
   {
    animationType: &#39;slide-up&#39;, backgroundColor: &#39;#00000000&#39;, onMaskClose: () => {
    Widget.Popup.hide()
   }
   })
 }

 onSelectArea = (area) => {
  Log(area)
 }
};

Format du type de données

[
 {
  "value": "110000000000",
  "children": [
   {
    "value": "110100000000",
    "children": [
     {
      "value": "110101000000",
      "label": "东城区"
     },
     {
      "value": "110102000000",
      "label": "西城区"
     },
     {
      "value": "110105000000",
      "label": "朝阳区"
     },
     {
      "value": "110106000000",
      "label": "丰台区"
     },
     {
      "value": "110107000000",
      "label": "石景山区"
     },
     {
      "value": "110108000000",
      "label": "海淀区"
     },
     {
      "value": "110109000000",
      "label": "门头沟区"
     },
     {
      "value": "110111000000",
      "label": "房山区"
     },
     {
      "value": "110112000000",
      "label": "通州区"
     },
     {
      "value": "110113000000",
      "label": "顺义区"
     },
     {
      "value": "110114000000",
      "label": "昌平区"
     },
     {
      "value": "110115000000",
      "label": "大兴区"
     },
     {
      "value": "110116000000",
      "label": "怀柔区"
     },
     {
      "value": "110117000000",
      "label": "平谷区"
     },
     {
      "value": "110118000000",
      "label": "密云区"
     },
     {
      "value": "110119000000",
      "label": "延庆区"
     }
    ],
    "label": "北京市"
   }
  ],
  "label": "北京市"
 }
]

Recommandations associées :

Ressources inter-domaines React Native Comment résoudre le chargement erreurs

React Native utilise la méthode Fetch pour envoyer des requêtes POST

Exemple détaillé de la classe d'outils de format de conversion d'heure React Native

Ce qui précède est le contenu détaillé de. pour plus d'informations, suivez d'autres articles connexes sur le site Web de PHP en chinois!