There are to ways how to activate your camera throught an apllication.
first approach will allows you to take more than one image in session and save them in your default photoalbum
- capture.captureImage http://docs.phonegap.com/en/1.0.0/phonegap_media_capture_capture.md.html#Capture
second approach can retrieve image from photoalbum and place image within application or will capture image and save it in application instead of photoalbum.
- camera.getPicture http://docs.phonegap.com/en/1.0.0/phonegap_camera_camera.md.html#Camera