HadeS - Invisible Camera

Have you ever missed the moment to take a picture?
Ever wanted to take a picture without having to wait for the application to start on not to waste time?
Ever wanted to take a picture while you were playing or without pause or the foreground application?
Or maybe you just want to take a picture without everyone else noticing?

This application satisfies your needs!
After you activate the background service you can shoot a photo touching the button that will always remain in the foreground.
This application doesn't lock the camera and doesn't keep the camera on! So you can use other camera applications and take pictures with them while HadeS is running, and this will save a LOT of battery life!

Features
-Choose the flash mode.
-Choose which camera to use.
-Set the resolution for the available cameras.
-Set the focus mode for the available cameras.
-Change the picture's preview visibility.
-Choose whether to preview the photo.
-Ability to mask the notification.
-Ability to record video.
-Hold the button to start (or stop) the camera previewing and continuous autofocus (reduces the time between the pression of the button and the picture is saved by 55%!). *NEW*
-Keep the preview open after the picture is taken. *NEW*

Pro features (coming soon)
-Choose if hide the overlay icon.
-Take a picture when pressing the keys of volume or camera.
-Vibrate when the picture is taken.
-Duration of vibration.
-Choose the folder where to save the pictures.
-Change the size of the picture's preview.
-Encrypt the pictures taken.
-Run on boot.

UPDATES

v3.10
New Functions Avalable!
-Hold the button to start (or stop) the camera previewing and continuous autofocus (reduces the time between the pression of the button and the picture is saved by 55%!).
-Keep the preview open after the picture is taken.
-Bug fix.

v3.04
-Notification masked better.
-Bug fix.

v3.03
-Bug fix.

v3.02
-Bug fix.

v3.01
-Removed the warning "test toast" that appeared starting the service.

v3.0
-Created new icon.
-Created new notification with quick actions.
-Ability to mask the notification.
-Ability to record video.
-Bug fix.

v2.15
-Fixed the back button bug.
-Fixed the initialization of the camera indicator.
-Video recording almost ready and will come soon.

v2.1
-Rearranged the layout for more user friendliness.
-Added support for the flash modes red-eye and torch.
-Bug fix.

v2.0
-Rewrited many parts to make it work better and faster.
-Divided the section for the global configuration from the specific cameras' settings.
-Added support for more than 2 cameras.
-Replaced the checkbox to start the service with a floating action button for android Lollipop.