使用text属性numberolines ={1}来实现文本的省略号，它会自动截断带有省略号的文本，你可以指定ellipsizeMode为"head"， "middle"， "tail"或"clip" 默认为tail

https://reactnative.dev/docs/text#ellipsizemode

如果你想读取更多的行为，那么你可以使用react-native-read-more-text库:

NPM I react-native-read-more-text -save

<ReadMore
  numberOfLines={1}
  renderTruncatedFooter={(handlePress) => { return <Text onPress={handlePress} style={{ color: 'grey' }}>show more</Text> }}
  renderRevealedFooter={(handlePress) => { return <Text onPress={handlePress} style={{ color: 'grey' }}>show less</Text> }}
>
  <Text>yourText</Text>
</ReadMore>

文档:https://github.com/expo/react-native-read-more-text

当内容小于numberolines时，要隐藏“read more”，你可以使用三元操作符:

{
  'yourText'.length > 50
  ?
  <ReadMore
    numberOfLines={1}
    renderTruncatedFooter={(handlePress) => { return <Text onPress={handlePress} style={{ color: 'grey' }}>show more</Text> }}
    renderRevealedFooter={(handlePress) => { return <Text onPress={handlePress} style={{ color: 'grey' }}>show less</Text> }}
  >
    <Text>yourText</Text>
  </ReadMore>
  :
  <Text>yourText</Text>
}

使用text属性numberolines ={1}来实现文本的省略号，它会自动截断带有省略号的文本，你可以指定ellipsizeMode为"head"， "middle"， "tail"或"clip" 默认为tail

https://reactnative.dev/docs/text#ellipsizemode

您可以使用ellipsizeMode和numberolines。 如

<Text ellipsizeMode='tail' numberOfLines={2}>
  This very long text should be truncated with dots in the beginning.
</Text>

https://facebook.github.io/react-native/docs/text.html

<View 
   style={{
        flexDirection: 'row',
        padding: 10,
    }}
>
  <Text numberOfLines={5} style={{flex:1}}>
       This is a very long text that will overflow on a small device This is a very 
       long text that will overflow on a small deviceThis is a very long text that 
       will overflow on a small deviceThis is a very long text that will overflow 
       on a small device
  </Text>
</View>

Const styles = theme => ({ contentClass: { 溢出:“隐藏”, textOverflow:“省略”, 显示:“-webkit-box”, WebkitLineClamp: 1、 WebkitBoxOrient:“垂直” ｝ }) Render () { 回报( < div className = {classes.contentClass} > {“内容”} < / div > ） ｝