Add alternative shutter methods

[Harald Walker]

Feature request:

Problem:
On a large phone like the MX4 it is very difficult to use the camera app with one hand because when you first set the focus point, then it is usually impossible to reach the shutter icon without moving the phone.

Possible solutions:
- When setting the focus point, directly take an image when it is focused. This could be an option or gesture based (e.g. double tap on screen).
- use one of the hardware buttons as shutter button. E.g. volume control.

[Jim Hodapp (jhodapp)]

I agree with using one of the hardware buttons. I'd grown used to this on my iPhone and that's what I use almost every time now.

[kergma (pushkinsv)]

I also agree with using hardware volume control buttons - one for autofocus, another for shooting.

[Robin Heroldich (robinheroldich)]

This would be a really useful feature. :)

[Tóth Zoltán (htzoltan)]

There is no meaningful function of volume buttons during making photos. I am also suggesting to use the volume control buttons to take a photo.

[Daniel (d2niel)]

This function should not be label as a wish, it should already be integrated.
It has been a part of iOS since forever (don't know about Android) and it is extremely useful.
On large phones (like Meizu MX4, Pro 5 and others) you can drop your phone if you try to take a picture with one hand.