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https://github.com/Etar-Group/Etar-Calendar

Android open source calendar
https://github.com/Etar-Group/Etar-Calendar

android calendar material-design

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Android open source calendar

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README 

        
![Etar Calendar](metadata/en-US/images/featureGraphic.png)

# Etar Calendar

Etar (from Arabic:  `إِيتَار`)  is an open source material designed calendar made for everyone!



[Get it on F-Droid](https://f-droid.org/packages/ws.xsoh.etar/)[Get it on Google Play](https://play.google.com/store/apps/details?id=ws.xsoh.etar)



![Etar Calendar](metadata/animation.gif)



## Why?

Well, I wanted a simple, material designed and state of the art open source calendar that anyone can make better.



## Special thanks



The application is an enhanced version of AOSP Calendar. Without the help of

[Free Software for Android](https://github.com/Free-Software-for-Android/Standalone-Calendar) team, 

this app would be just a dream. So thanks to them!



## Features

- Month view.

- Week, day and agenda view.

- Uses Android calendar storage to show all synchronized calendars.

- Material Design.

- Dark and light theme.

- Support offline calendar.

- Agenda widget.

- Support sharing calendars via ICS and the ability to import/export from SD card.

- Multilingual UI.



## How to use Etar

Store your calendar on the phone only:

  - Create an offline calendar.



Sync your calendar to a server:

  - A cloud-synched calendar could be a google calendar, but you can also use

  any other public Caldav-server or even host your own (which would be the

  only way to keep full control over your data and still have ONE calendar

  usable from different devices.) To sync such a calendar to some server you

  need yet another app, e. g. DAVx5. That’s necessary because a Caldav client

  isn't included in Etar.



### Technical explanation

On Android there are "Calendar providers". These can be calendars that are

synchronized with a cloud service or local calendars. Basically any app

could provide a calendar. Those "provided" calendars can be used by Etar.

You can even configure in Etar which ones are to be shown and when adding

an event to which calendar it should be added.



### Important permissions Etar requires

- READ_EXTERNAL_STORAGE & WRITE_EXTERNAL_STORAGE  

->import and export ics calendar files  

- READ_CONTACTS(optional)  

  Is queried the first time an appointment is created and can be rejected. But then search and location suggestions no longer work.

->allows search and location suggestions when adding guests to an event  

- READ_CALENDAR & WRITE_CALENDAR  

->read and create calendar events



### Known issues with the ICS import feature



Etar can import ICS files, for instance, received in invitation emails.

The import feature is unstable and has a list of known bugs.

Refer to https://github.com/Etar-Group/Etar-Calendar/pull/653 as a reference to those bugs.

Use it with caution, especially, if your calendar provider automatically sends out invitation emails.



## Contribute

### Translations

Interested in helping to translate Etar? Contribute here: https://hosted.weblate.org/projects/etar-calendar/strings/



##### Google Play app description:

You can update/add your own language and all artwork files [here](metadata)



### Build instructions

Install and extract Android SDK command line tools.

```

tools/bin/sdkmanager platform-tools

export ANDROID_HOME=/path/to/android-sdk/

git submodule update --init

gradle :app:assembleDebug

```

## License



Copyright (c) 2005-2013, The Android Open Source Project



Copyright (c) 2013, Dominik Schürmann



Copyright (c) 2015-, The Etar Project



Licensed under the GPLv3: https://www.gnu.org/licenses/gpl-3.0.html

Except where otherwise noted.



Google Play and the Google Play logo are trademarks of Google Inc.