Android: Check whether camera supports auto-focus?

Question

For the Android API version 2.1 and higher, we can use context:

getPackageManager().hasSystemFeature(PackageManager.FEATURE_CAMERA_AUTOFOCUS)

Answer 1

CameraManager cameraManager = (android.hardware.camera2.CameraManager) getSystemService(CAMERA_SERVICE);

int[] afModes = cameraManager.getCameraCharacteristics("0").get(CameraCharacteristics.CONTROL_AF_AVAILABLE_MODES);

if (afModes.length <= 1)
{Log.d(TAG, "Camera doesn't have autofocus");}
else
{Log.d(TAG, "Camera has autofocus");}

        Log.d(TAG, "CONTROL_AF_AVAILABLE_MODES:");
        for (int position : afModes) {
            switch (afModes[position]) {
                case 0:
                    Log.d(TAG, "CONTROL_AF_MODE_OFF (0)");
                    break;
                case 1:
                    Log.d(TAG, "CONTROL_AF_MODE_AUTO (1)");
                    break;
                case 2:
                    Log.d(TAG, "CONTROL_AF_MODE_MACRO (2)");
                    break;
                case 3:
                    Log.d(TAG, "CONTROL_AF_MODE_CONTINUOUS_VIDEO (3)");
                    break;
                case 4:
                    Log.d(TAG, "CONTROL_AF_MODE_CONTINUOUS_PICTURE (4)");
                    break;
                case 5:
                    Log.d(TAG, "CONTROL_AF_MODE_EDOF (5)");
                    break;
                default:
                    Log.d(TAG, String.valueOf(afModes[position]));
            }
        }