How to search with space In Flutter Firebase

Question

I Want to Search from by firebase database, But When space in between a name then it does not works at all. So what can i do now.. it works before space is given....

Code:

stream: (searchString==null || searchString.trim()=='')? 
      Firestore.instance.collection('ebook').snapshots() : Firestore.instance.collection('ebook')
          .where('searchIndex',arrayContains: searchString)
          //.where('organization',isEqualTo: searchString )
          .snapshots(),

Answer 1

Try adding the following:

.where("searchIndex", isGreaterThanOrEqualTo: searchString)  //String comparison
.where('searchIndex', isLessThan: searchString + 'z') //Shows all results until the letter ends with a Z, so this should include spacebar