React Native如何检测链接表单字符串并转换为链接?

时间:2016-01-21 20:39:47

标签: react-native

我希望用户能够从评论(字符串)中获取链接,类似于linkify。有一个简单的方法吗?我相信它在这里得到解决(https://github.com/facebook/react-native/issues/3148),但我不太确定如何实现它。谢谢。

4 个答案:

答案 0 :(得分:5)

您可以使用react-native-hyperlink

import Hyperlink from 'react-native-hyperlink'
import {Text, Linking} from 'react-native'

const MyComponent = () => (
  <Hyperlink onPress={Linking.openURL}>
    <Text>{"Click on https://stackoverflow.com to test"}</Text>
  </Hyperlink>
)

答案 1 :(得分:4)

我根据quick demo中的组件制作了link

我无法在该环境中测试LinkingIOS,但这些docs应该可以帮助您。

以下是原始资料来源:

var HyperText = React.createClass({

  render: function() {

    // Check if nested content is a plain string
    if (typeof this.props.children === 'string') {

      // Split the content on space characters
      var words = this.props.children.split(/\s/);

      // Loop through the words
      var contents = words.map(function(word, i) {

        // Space if the word isn't the very last in the set, thus not requiring a space after it
        var separator = i < (words.length - 1) ? ' ' : '';

        // The word is a URL, return the URL wrapped in a custom <Link> component
        if (word.match(/^https?\:\//)) {
          return <Link key={i} url={word}>{word}{separator}</Link>;
        // The word is not a URL, return the word as-is
        } else {
          return word + separator;
        }
      });
    // The nested content was something else than a plain string
    // Return the original content wrapped in a <Text> component
    } else {
      console.log('Attempted to use <HyperText> with nested components. ' +
                   'This component only supports plain text children.');
      return <Text>{this.props.children}</Text>;
    }

    // Return the modified content wrapped in a <Text> component
    return (
      <Text>
        {contents}
      </Text>
    );
  }

});

var Link = React.createClass({

  render: function() {
    return <Text onPress={this.openUrl.bind(this, this.props.url)}>{this.props.children}</Text>;
  },

  openUrl: function(url) {
    LinkingIOS.canOpenURL(url, (supported) => {
      if (!supported) {
        AlertIOS.alert('Can\'t handle url: ' + url);
      } else {
        LinkingIOS.openURL(url);
      }
    });
  }

});

希望这有点帮助。

答案 2 :(得分:1)

尝试使用此库{{3}},它可以检测到它是hyperlinkhashtagmentionemail还是{{1} }。

phone number

答案 3 :(得分:0)

您可以使用此包将字符串转换为链接 https://www.npmjs.com/package/react-linkify

<Linkify> See source code at https://github.com/tasti/react-linkify/. </Linkify>

它将呈现

请参见https://github.com/tasti/react-linkify/上的源代码。