How to detect no of camera's available in android device? and also if the device has front camera how to use it?

Question

How to detect no of camera's available in android device? and also if the device has front camera how to use it?

Answer 1

What I would suggest is similar to doc_180's answer, but should be able to detect both front and back facing cameras even for Froyo, though if I'm not mistaken, Froyo never supported front-facing cameras, so you'll always get a false response for frontCam on Froyo.

PackageManager pm = getPackageManager();
boolean frontCam, rearCam;

//Must have a targetSdk >= 9 defined in the AndroidManifest
frontCam = pm.hasSystemFeature(PackageManager.FEATURE_CAMERA_FRONT);
rearCam = pm.hasSystemFeature(PackageManager.FEATURE_CAMERA);

EDIT: Just realized this is a really, really old question. Oh well, hopefully it helps someone in the future.

Answer 2

Use packagemanager to check if the device supports the Intent. In this case Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);

public static boolean isIntentAvailable(Context context, String action) {
    final PackageManager packageManager = context.getPackageManager();
    final Intent intent = new Intent(action);
    List<ResolveInfo> list =
            packageManager.queryIntentActivities(intent,
                    PackageManager.MATCH_DEFAULT_ONLY);
    return list.size() > 0;
}