Tindroid chat

Android instant messenger using Tinode backend. Beta-quality software.

What works:

Send and receive messages one-on-one or in group chats.
Register new accounts.
Start new chats.
Edit chat parameters.
In-app presence notifications.
Unread message counters.
Typing indicators.
Push notifications.
Indicators for messages received/read (little check marks in messages).
Markdown-style formatting of text, e.g. *styled* → styled. Implemented as spannable.
Attachments and inline images.
Muting/un-muting conversations and other permission management.
Integration with Android's stock Contacts.
Invite contacts to the app by SMS or email.
Transport Level Security - https/wss.
Offline mode is mostly functional.
Editing of personal details.

libphonenumber for user discovery to ensure all phone numbers use the same E.164 format
MaterialChipsInput widget for group chat member selection. This implementation is buggy and inflexible, should be replaced ASAP. Google should have provided this widget.
google-services for push notifications. In order to compile the app you need to generate your own config file google-services.json. Once downloaded, copy it to the ./app/ folder. The config file contains Google-provided passwords and as such cannot be shared. If you don't do it the app will crash with non-obvious exceptions. The Google-provided server key must be copied to tinode.conf, see details here.

The contacts.vcf contains a list of contacts which can be used for testing. Push it to your emulator using

adb push contacts.vcf /sdcard/contacts.vcf