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?

Solution 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.

Solution 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;
}

Solution 3

    CameraInfo cameraInfo = new CameraInfo();
    for (int i = 0; i < numberOfCameras; i++) {
        Camera.getCameraInfo(i, cameraInfo);
        if (cameraInfo.facing == CameraInfo.CAMERA_FACING_FRONT) {              

        }
    }

Comments

[sureshmenon13196]

hi, thanks for your reply but i am using android 2.2 i don't find CameraInfo class. what to do now?

[Soumya Simanta]

@suresh - Can you ask the user to tell the application if there is a front camera in the device or not ?

[Anne]

Comment by user without comment privileges (profile): MediaStore.ACTION_IMAGE_CAPTURE doesn't work, you should use android.media.action.IMAGE_CAPTURE.

[Cristian]

Keep in mind that you can compile your app using Android 2.3 or higher and still make it compatible with Android 2.2. Remember that constants like PackageManager.FEATURE_CAMERA_FRONT are actually hardcoded by the compiler, so it will not fail at runtime on Android 2.2 or older.

[andr]

how on earth does that answer the question?

[Brad Moore]

This will return false for devices with no rear camera like the Nexus 7.

[MCLLC]

Should try FEATURE_CAMERA_ANY instead.

[Galya]

FEATURE_CAMERA_ANY is the right way to go, but it works only on API 17 and above.