how to process string data like this 'Stephen Hawking Einstein' be like this 'SH&#039-CodePudding

how to process string data like this 'Stephen Hawking Einstein' be like this 'SH'.

Text('Stephen Hawking Einstein')

CodePudding user response：

Create an extension somewhere in your application.

extension MemberStringAbbreviation on String {
  String abbreviation() {
    var stringData = this;
    if (stringData.isEmpty) return '';

    var splitStringSpace = stringData.split(' ');

    //Rule for a string of n letters.
    if (splitStringSpace.length == 1) {
      var firstWord = splitStringSpace[0];

      //Rule to extract the first letter of the string.
      if (firstWord.length == 1) {
        return firstWord.toUpperCase();
      }

      //Rule for extracting the first two letters of a string.
      if (firstWord.length > 1) {
        return firstWord.substring(0, 2).toUpperCase();
      }
      return '';
    }

    //Rule for two or more n-letter words.
    if (splitStringSpace.length >= 2) {
      var firstWord = splitStringSpace[0].toUpperCase();
      var secondWord = splitStringSpace[1].toUpperCase();

      return '${firstWord[0]}${secondWord[0]}';
    }

    return '';
  }
}

Import and use the extension

Text('Stephen Hawking Einstein'.abbreviation());
Text('Stephen Hawking'.abbreviation());
Text('Stephen'.abbreviation());
Text('St'.abbreviation());
Text('S'.abbreviation());
Text('Stephen H'.abbreviation());
Text('S H'.abbreviation());

CodePudding user response：

You can split the string by spaces. Like this:

String name = 'Stephen Hawking Einstein';
String abbreviatedName = '';

for(int i = 0; i < name.split(' ').length; i  )
{
    abbreviatedName  = name.split(' ')[i][0];
}

In Text widget:

Text(
    abbreviatedName,
)