Camera.open() returns NULL Android development

Question

I am following the tutorial for building a camera app http://developer.android.com/tools/device.html and I am my call to Camera.open() returns null. I've declared the permission in the manifest and I tried both on the emulator and a xyboard and I am still getting null. Does anyone know any quick hints?

Camera c = null;
try
{
    c = Camera.open()
}
catch(Exeption e)
{

}
return c;

Keep in mind, I am not throwing an exception, I am simply getting NULL back.

Check logcat, SOMETHING is happening. Also camera implementation is different for different devices and OS levels, need more information. — Jug6ernaut
– Jug6ernaut, Commented Sep 25, 2012 at 16:15

Izkata · Accepted Answer · 2012-09-25 16:30:04Z

4

That's because it's not supposed to throw an exception. It returns null when no back-facing camera is found:

Creates a new Camera object to access the first back-facing camera on the device. If the device does not have a back-facing camera, this returns null.

You may be trying to access a front-facing camera, in which case you probably want to use open(int cameraId). (See the other answer for an example of using it)

answered Sep 25, 2012 at 16:30

Izkata

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petey · Accepted Answer · 2012-09-25 16:22:41Z

2

Here is a really great tutorial for working with the android camera
You'll notice thru out the code there are toasts/alerts that will help guide you to what is happening

answered Sep 25, 2012 at 16:22

petey

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Matthew · Accepted Answer · 2012-09-26 20:37:15Z

0

In order to get this working, I had to use the Camera.open(0) which meant that I had to change the API level in the manifest from 8 to 9. I am now getting an Error 100 though...

answered Sep 26, 2012 at 20:37

Matthew

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