如何使用Flutter中的二维码数据保存手机中的联系人

Question

I want to save the Contacts numbers in my phone using QR code data in Flutter.

Answer 1

Using this package for managing user contact book on Android & iOS and this package or any other with qr scanning ability.

First create a template for qr information. Flutter contacts lets you save with vCard format which would be very useful, or just have contact name & number raw in qr data.

Once you have consistent formatting of qr data, after user scans code, pass data inside it to a new contact:

 final newContact =  Contact()
    ..name.first = 'John' //<- value from qr code
    ..name.last = 'Smith' //<- value from qr code
    ..phones = [Phone('555-123-4567')]; //<- value from qr code
  

    await newContact.insert();

More information available in package descriptions.