ChargEco/Strides-SPAPP/app/pages/alert/ViewArticle.js

/**
 * 文章详情
 * @邠心vbe on 2023/10/24
 */
import React, { Component } from 'react';
import { View,  StyleSheet, Image, ScrollView, Linking, Animated, Easing } from 'react-native';
import Swiper from 'react-native-swiper';
import apiArticle from '../../api/apiArticle';
import TextView from '../../components/TextView';
import VbeSkeleton from '../../components/VbeSkeleton';
import utils from '../../utils/utils';
import { PagerView } from './ViewUtil';
import MyStatusBar from '../../components/MyStatusBar';
import Toolbar, { BackButton } from '../../components/Toolbar';

export default class ViewArticle extends Component {
  constructor(props) {
    super(props);
    this.state = {
      id: "",
      loading: true,
      showTitleBar: false,
      messageInfo: {
        articleTypeName: "",
        articleTitle: "",
        articleContent: ""
      },
      opacity: new Animated.Value(0)
    };
  }

  componentDidMount() {
    if (this.props.route?.params?.id) {
      this.setState({
        id: this.props.route?.params?.id
      }, () => {
        this.readMessage();
      })
    }
    MyStatusBar.setStatusBarTheme(MyStatusBar.LIGHT_STYLE);
    this.props.navigation.addListener('beforeRemove', (e) => {
      MyStatusBar.setStatusBarTheme(MyStatusBar.DEFAULT_STYLE);
    });
  }

  readMessage() {
    apiArticle.readMessage(this.state.id).then(res => {
      if (res.data) {
        this.setState({
          loading: false,
          messageInfo: res.data
        });
        //this.setPageTitle();
      }
    }).catch(err => {
      toastShort(err);
    });
  }

  setPageTitle() {
    if (this.state.messageInfo.articleTitle) {
      /*this.props.navigation.setOptions({
        headerTitle: () => (<HeaderTitle title={this.state.messageInfo.articleTitle}/>)
      })*/
      setTimeout(() => {
        this.setState({
          loading: false
        });
      }, 300);
    }
  }

  accessLink(url) {
    Linking.openURL(utils.getImageUrl(url))
  }

  onScrollView(e) {
    if (e.nativeEvent.contentOffset) {
      const isR = e.nativeEvent.contentOffset.y >= $vw(95);
      if (isR != this.state.showTitleBar) {
        this.setState({
          showTitleBar: isR
        });
        if (isR) {
          this.startTitleAnimate();
        } else {
          this.hideTitleAnimate();
        }
        MyStatusBar.setStatusBarTheme(isR ? MyStatusBar.DEFAULT_STYLE : MyStatusBar.LIGHT_STYLE);
      }
    }
  }

  startTitleAnimate() {
    Animated.timing(this.state.opacity, {
      toValue: 1,
      duration: 250,
      easing: Easing.linear,
      useNativeDriver: true
    }).start(() => {
      
    });
  }

  hideTitleAnimate() {
    Animated.timing(this.state.opacity, {
      toValue: 0,
      duration: 250,
      easing: Easing.linear,
      useNativeDriver: true
    }).start(() => {
      
    });
  }

  render() {
    if (this.state.loading) {
      return (
        <View style={styles.container}>
          <VbeSkeleton
            style={{width: $width, height: $width}}
            layout={[
              {width: $width, height: $width}
            ]}
            animationDirection={"horizontalRight"}/>
          <VbeSkeleton
            style={styles.loadingView}
            layout={[
              {width: '90%', height: 20, marginTop: 8},
              {width: '50%', height: 12, marginTop: 8},
              {width: '100%', height: 15, marginTop: 24},
              {width: '100%', height: 15, marginTop: 8},
              {width: '100%', height: 15, marginTop: 8},
              {width: '100%', height: 15, marginTop: 8},
              {width: '30%', height: 15, marginTop: 8},
              {width: '100%', height: 15, marginTop: 24},
              {width: '100%', height: 15, marginTop: 8},
              {width: '100%', height: 15, marginTop: 8},
              {width: '100%', height: 15, marginTop: 8},
              {width: '30%', height: 15, marginTop: 8}
            ]}
            animationDirection={"horizontalRight"}/>
        </View>
      )
    } else {
      return (
        <>
        <ScrollView
          style={styles.container}
          onScroll={e => this.onScrollView(e)}
          scrollEventThrottle={16}
          contentContainerStyle={$padding(0,0,32)}>
          { utils.isNotEmpty(this.state.messageInfo.articleImages) &&
            <Swiper
              style={{height: $width}}
              autoplay={true}
              autoplayTimeout={5}
              renderPagination={(index,total) => <PagerView index={index+1} total={total}/> }
              removeClippedSubviews={false}>
              { this.state.messageInfo.articleImages.map((item, index) => {
                return (
                  <Image
                    key={index}
                    style={{width: $width, height: $width}}
                    source={{uri: utils.getImageUrl(item.articleImagePath)}}/>
                );
              })}
            </Swiper>
          }
          <View style={styles.header}>
            <TextView
              style={styles.textTitle}>
              {this.state.messageInfo.articleTitle}
            </TextView>
            <View style={ui.flexc}>
              <MaterialCommunityIcons
                name="clock-time-four-outline"
                color={textSecondary}
                size={12}/>
              <TextView
                style={styles.textDate}
                numberOfLines={1}>
                {this.state.messageInfo.createTime}
              </TextView>
              <View style={ui.flexc}>
                <MaterialCommunityIcons
                  name="eye-check-outline"
                  size={12}
                  color={textPrimary}/>
                <TextView
                  style={styles.textView}
                  numberOfLines={1}>
                  {this.state.messageInfo.articleViews}
                </TextView>
              </View>
            </View>
            <View style={ui.flex}>
              <TextView 
                style={styles.labelTypeText}
                numberOfLines={1}>
                {this.state.messageInfo.articleTypeName}
              </TextView>
            </View>
          </View>
          <TextView
            style={styles.textMessage}
            selectable={true}>
            {this.state.messageInfo.articleContent}
          </TextView>
          { utils.isNotEmpty(this.state.messageInfo.articleLinks) &&
            <>
              <TextView style={styles.textLinkTitle}>{$t("notification.labelLinks")}</TextView>
              { this.state.messageInfo.articleLinks.map((item, index) =>
                <View style={styles.itemLink} key={index}>
                  <TextView style={styles.linkIndex}>{index + 1}.</TextView>
                  <TextView
                    style={styles.linkHyper}
                    onPress={() => this.accessLink(item.articleLink)}>{item.articleLinkName}</TextView>
                </View>
              )}
            </>
          }
          <EndView/>
        </ScrollView>
        { !this.state.showTitleBar &&
          <View style={[styles.toolbar, {top: statusHeight}]}>
            <BackButton style={styles.backIcon} color={"#F0F0F0"}/>
          </View>
        }
        <Animated.View style={[styles.toolbar, {opacity: this.state.opacity}]}>
          <Toolbar title={this.state.messageInfo.articleTitle}/>
        </Animated.View>
        </>
      );
    }
  }
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    backgroundColor: pageBackground
  },
  toolbar: {
    top: 0,
    left: 0,
    right: 0,
    zIndex: 2,
    position: 'absolute'
  },
  backIcon: {
    width: 48,
    height: toolbarSize,
    zIndex: 2,
    marginLeft: isIOS ? 0 : 2,
    alignItems: 'center',
    justifyContent: 'center'
  },
  loadingView: {
    flex: 1,
    padding: 16,
    justifyContent: 'flex-start',
    backgroundColor: pageBackground
  },
  textTitle: {
    color: textPrimary,
    fontSize: 18,
    fontWeight: 'bold',
    paddingBottom: 2
  },
  textDate: {
    flex: 1,
    color: textSecondary,
    fontSize: 10,
    paddingLeft: 2
  },
  textView: {
    color: textSecondary,
    fontSize: 10,
    padding: 4
  },
  header: {
    padding: 16,
    backgroundColor: pageBackground
  },
  textMessage: {
    color: textPrimary,
    fontSize: 12,
    paddingLeft: 16,
    paddingRight: 16
  },
  labelTypeText: {
    fontSize: 12,
    fontWeight: 'bold',
    borderWidth: 1,
    borderRadius: 4,
    borderColor: colorPrimary,
    marginTop: 8,
    ...$padding(2, 6)
  },
  textLinkTitle: {
    color: textPrimary,
    fontSize: 14,
    fontWeight: 'bold',
    padding: 16
  },
  itemLink: {
    ...$padding(0, 16, 8),
    flexDirection: 'row'
  },
  linkIndex: {
    fontSize: 12,
    paddingRight: 2
  },
  linkHyper: {
    ...ui.link,
    fontSize: 12,
    textDecorationLine: 'underline'
  },
  linkActive: {
    color: "#FF3B30"
  }
})