Automatically mute/priority mode/vibrate your Android device based on calendar events
It does work on my Nexus 4 under Android 5.1.1. However, note that strictly speaking there is no "silent mode" in Lollipop: it has been replaced by the "Priority mode", and the "No interruption mode". This app will switch your device to "Priority mode" on Lollipop if you use the "Switch to silent" option. You can then configure your "Priority mode" to disable all sounds if you want (see your phone settings).
In "No interruption" mode, even alarms will be muted, which might not be the desired behavior (configuring your priority mode is probably a better option).
I used this app when I was in college, but I have now graduated and I do not need it anymore. Working on an app that you do not use, and does not get you any money is not very interesting. Which is why I decided to release it under GNU GPL: if you need something fixed, you can do it yourself, or contact your nearest geek !
If you find a bug, please submit it to the issue tracker on Github, so that someone can fix it.
Note that I still plan to accept reasonable pull requests on github and release new versions on the Play Store if necessary.
Please open a pull request on github; I will release the fixed version after approving it and leave you a thank note in the app description.
This was requested by a user a while ago: when creating an event in Google Calendar, you can set your availability to "busy" or "available", among others. If you usethis option, only "busy" events will be used. However depending on your version of the calendar app, your device, your Android version, this feature may work or not. The good news is: this is free software, you can fix it yourself !
This application is released under the GNU GPL v2, do make sure you abide by the license terms when using it. Read the license terms for more details, but to make it very (too) simple: you can do everything you want with the application, as long as you provide your source code with any version you release, and release it under the same license.