If an ending event is detected, the drive will take a screenshot,
and sends it back to the app.
The client will than put it as its background image.
Android app changes:
* Added write permission to the app.
* Added method to get the canvas object from anywhere.
* Added network server to retrieve the image.
* Added method to send a atop motion event signal, which is needed to
trigger the driver to send a new screenshot.
* Changed commit to apply because it is deprecated.
* The template image will now always fit the screen. (Removed TODO)
* Commented out grid pattern.
* Updated gradle version.
Driver changes:
* Included a lot of new library's, not sure if every is needed right now.
* Added type definition for some structures.
* Added function to sleep in ms.
* Added function for the screenshot sending thread.
* Changed recv to recvfrom to get the IP of the android device in order
to send back the screenshot.
TODO:
* Show the cursor path in the app.
* Sort out driver library's.
* Add the picture path to the option dialog.
* Create the screenshot in /tmp with a more suitable name.
* Sort functions that are not needed anymore.
* show full-screen option only for Android 4.4+ (no immersive mode below)
* show toast with destination IP address at start-up
* add option to keep display active (fixes#71)
* use AndroidStudio/gradle instead of Eclipse/ant
* upgrade to SDK v22 and build tools v22
* manage network connection from CanvasActivity instead of CanvasView
* show a "No host configured" message instead of opening Settings automatically when no host is configured
* use Android 4.4 immersive full-screen (fixes#59)
* use Material design (using support library)
* add setting for dark canvas (closes#54, #73, closes#76)
doc/protocol.txt: Replaced type names with architecture independent aliases, fixed 'type' size which is a byte, and recorded that it uses "big endian", or "network byte order" convention.
