JSR 234: Not able to set autofocus

[indela]

Hi,

I am using JSR 234 and hardware is N97mini.

Creating a sample camera application and want to set auto-focus. just followed the JSR 234 documentation coming with the sdk. the code snippet is as below:

Player p;
CameraControl cameraControl;
FocusControl focusControl;
// Use autofocus if it is available:
focusControl = (FocusControl) // always getting focuscontrol as NULL
p.getControl("javax.microedition.amms.control.camera.FocusControl");
if(focusControl != null) {
if(focusControl.isAutoFocusSupported()) {
try {
focusControl.setFocus(FocusControl.AUTO);
} catch(MediaException e) {
//Shouldn't happen.
}
}
}
else
{
//control comes here as focuscontrol is set as null

}


the problem is :
focusControl = (FocusControl) p.getControl("javax.microedition.amms.control.camera.FocusControl");
after above call focuscontrol is set as NULL.


can anybody help me to fix this issue.

[hartti]

N97 Mini does not support camera features of the AMMS API
https://www.developer.nokia.com/Devi...ions/N97_mini/
In fact none of the Nokia Symbian phones support that

Hartti

[indela]

Thank you Hartti,

so does it means i can't develop a camera app with autofocus enabled for Symbian devices?
Can you please suggest the device family i can target.
My application requires autofocus enabled.

Regards,
Indela

[hartti]

On Symbian phones you are better of using Qt / Symbian C++ for this project. You have much better control of the camera hardware that way.

If you want to use Java ME, there are a number of Series 40 phones which support that API. You can either check that through the expert search of device specifications or see the correct platform version from here
http://www.developer.nokia.com/Commu..._Nokia_devices

Hartti