Here you can find the source of getCameraId(int position)
public static int getCameraId(int position)
//package com.java2s; import android.hardware.Camera; public class Main { public static int getCameraId(int position) { // Find the total number of cameras available int mNumberOfCameras = Camera.getNumberOfCameras(); // Find the ID of the back-facing ("default") camera Camera.CameraInfo cameraInfo = new Camera.CameraInfo(); for (int i = 0; i < mNumberOfCameras; i++) { Camera.getCameraInfo(i, cameraInfo); if (cameraInfo.facing == position) return i; }//w w w. j a va 2 s. c om return 0; } }