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Added overload: open(cameraId)

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slepmog 2014-05-01 05:14:28 -07:00
parent 07bdeb9995
commit 5b957c86f8
1 changed files with 33 additions and 0 deletions
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33
android/src/com/google/zxing/client/android/camera/open/OpenCameraInterface.java
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@ -26,6 +26,39 @@ public final class OpenCameraInterface {
private OpenCameraInterface() {
}
/**
* Opens the requested camera with {@link Camera#open(int)}, if one exists.
*
* @param cameraId camera ID of the camera to use
* @return handle to {@link Camera} that was opened
*/
public static Camera open(int cameraId) {
if (cameraId < 0) {
Log.w(TAG, "Requested invalid camera ID: " + cameraId);
return null;
}
int numCameras = Camera.getNumberOfCameras();
if (numCameras == 0) {
Log.w(TAG, "No cameras!");
return null;
}
Camera camera;
if (cameraId < numCameras) {
Log.i(TAG, "Opening camera #" + cameraId);
camera = Camera.open(cameraId);
} else {
Log.w(TAG, "Requested camera does not exist: " + cameraId);
camera = null;
}
return camera;
}
/**
* Opens a rear-facing camera with {@link Camera#open(int)}, if one exists, or opens camera 0.
*