Java tutorial
//package com.java2s; /* * Copyright (C) 2015 Ouadban Youssef(tafayor.dev@gmail.com) * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ import android.content.Context; import android.hardware.Camera; public class Main { private static int sCameraFirstIndex = -1; public static int getCameraFirstId(Context ctx) { if (sCameraFirstIndex != -1) return sCameraFirstIndex; Camera camera = null; try { camera = Camera.open(0); sCameraFirstIndex = 0; camera.release(); camera = null; } catch (Exception ex) { sCameraFirstIndex = 1; } return sCameraFirstIndex; } }