How to have Ellipsis effect on Text

问题

I'm having a long text in my app and I need to truncate it and add three dots to the end.

How can I do that in React Native Text element?

Thanks

回答1:

use numberOfLines

https://rnplay.org/plays/ImmKkA/edit

or if you know/or can compute the max character count per row, JS substring may be used.

<Text>{ ((mytextvar).length > maxlimit) ? 
    (((mytextvar).substring(0,maxlimit-3)) + '...') : 
    mytextvar }
</Text>

回答2:

Use the numberOfLines parameter on a Text component:

<Text numberOfLines={1}>long long long long text<Text>

Will produce:

long long long…

(Assuming you have short width container.)

---

Use the ellipsizeMode parameter to move the ellipsis to the head or middle. tail is the default value.

<Text numberOfLines={1} ellipsizeMode='head'}>long long long long text<Text>

Will produce:

…long long text

回答3:

You can use ellipsizeMode and numberOfLines. e.g

<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

回答4:

<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>

回答5:

const styles = theme => ({
 contentClass:{
    overflow: 'hidden',
    textOverflow: 'ellipsis',
    display: '-webkit-box',
    WebkitLineClamp:1,
    WebkitBoxOrient:'vertical'
 }   
})

render () {
  return(
    <div className={classes.contentClass}>
      {'content'}
    </div>
  )
}

来源：https://stackoverflow.com/questions/30594080/how-to-have-ellipsis-effect-on-text