Question

我使用简单的Text项创建一个简单的ListView组件。

import React from "react";
import { StyleSheet, Text, View, ListView } from "react-native";

export default class NoteList extends React.Component {
  constructor(props) {
    super(props);
    this.ds = new ListView.DataSource({
      rowHasChanged: (r1, r2) => {
        r1 !== r2;
      }
    });
  }

  render() {
    return (
      <ListView
        dataSource={this.ds.cloneWithRows([
          { title: "Note 1", body: "Body 1", id: 1 },
          { title: "Note 2", body: "Body 2", id: 2 }
        ])}
        renderRow={rowData => {
          return (
            <View style={styles.itemContainer}>
              <Text style={styles.itemText}>
                {rowData.title}
              </Text>
            </View>
          );
        }}
      />
    );
  }
}

const styles = StyleSheet.create({
  itemContainer: {
    flex: 1,
    flexDirection: "row",
    justifyContent: "flex-start",
    borderColor: "red",
    borderWidth: 1
  },

  itemText: {
    padding: 16,
    borderColor: "blue",
    borderWidth: 1
  }
});

我使用文本的包装器视图。然后使用FlexBox将Text缩放到最大宽度并将其内容对齐到左侧。但是当Text对齐中心并包装内容时（包装视图也包装内容），结果并不像预期的那样。如何解决这个问题？

Answer 1

您也可以使用Dimensions来获取屏幕宽度并分配到text

从react-native

导入维度

import { StyleSheet, Text, View, ListView, Dimensions } from "react-native";

将width分配给text：

itemText: {
    padding: 16,
    borderColor: "blue",
    borderWidth: 1,
    width: (Dimensions.get('window').width)
  }

Answer 2

只需在样式flex上添加itemText，例如：

itemText: {

    flex: 1,
    padding: 16,
    borderColor: "blue",
    borderWidth: 1

}

在我的模拟器中显示如下：

我希望我的回答可以帮到你..

Answer 3

您可以使用react-native-easy-grid，在这种情况下设计很容易

已实施示例：

import React from "react";
import { StyleSheet, Text, View, ListView } from "react-native";
import {Col} from 'react-native-easy-grid';
 // 0.1.15

export default class NoteList extends React.Component {
  constructor(props) {
    super(props);
    this.ds = new ListView.DataSource({
      rowHasChanged: (r1, r2) => {
        r1 !== r2;
      }
    });
  }

  render() {
    return (
      <ListView
        dataSource={this.ds.cloneWithRows([
          { title: "Note 1", body: "Body 1", id: 1 },
          { title: "Note 2", body: "Body 2", id: 2 }
        ])}
        renderRow={rowData => {
          return (
            <View style={styles.itemContainer}>
              <Col>
              <Text style={styles.itemText}>
                {rowData.title}
              </Text>
              </Col>
            </View>
          );
        }}
      />
    );
  }
}

const styles = StyleSheet.create({
  itemContainer: {
    flex: 1,
    flexDirection: "row",
    justifyContent: "flex-start",
    borderColor: "red",
    borderWidth: 1
  },

  itemText: {
    padding: 16,
    borderColor: "blue",
    borderWidth: 1
  }
});

React Native：ListView项目不会缩放全宽

3 个答案: