从gmail导入朋友并向他们发送消息

Question

i am working on app that send an invitation to user. i already post a message on friends facebook wall but now i wish to send invite to gmail user too

i want to perform following task from my app.

1. Import all contact from my gmail
2. Select all of them and send them a message with download link of my app.

i follow This Tutorial but with the help of this i just can import friends it not allow me to select all of them and send them message with download link of my app

need guidance from my seniors. May my question rate as duplicated or closed but i didn't fine any useful material from internet.

Regards!

Adnan

Answer 1

Take a look at this , it is a link to their contacts API. Especially on the section titled: Retrieving all contacts . The sections below this one may help also, they are titled Retrieving contacts using query parameters, and Retrieving a single contact.

Answer 2

这是获取所有gmail联系人示例链接的示例 ，您可以在此使用他们的邮件ID向他们发布消息

Answer 3

For anyone still interested in this, I don't recommend using Google OAuth 2.0 API in Android. It's a lot of work to do, and is intended for a general solution to all web/mobile apps.

I think Google Invites API is exactly what's needed here, check this tutorial .