问题
I develop an app which needs to do 2 things:
- Create a user account (like WhatsApp).
- Whenever there is a new contact entry, if the contact is using my app, then immediately in the Contacts application show options "call" or "message" in the contact detail page.
Example
回答1:
You need to create a SyncAdapter
, this is basically a service that is able to sync contacts to/from a server, like Google
does for Google Contacts
, you can set it to be notified when a new contact is added, and have your SyncAdapter
add the needed info to the contact so it'll show links to your app.
If you go to your phone settings > accounts, you can see Whatsapp
and Google's SyncAdapters
there, where you can turn them off/on.
To create a sync adapter, you can follow the official docs, or this great tutorial.
来源:https://stackoverflow.com/questions/42525615/how-to-add-whatsapp-like-options-to-contact-whenever-the-is-a-new-contact-added