Java tutorial
//package com.java2s; /* * Copyright (C) 2013 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import android.annotation.TargetApi; import android.hardware.Camera; import android.os.Build; public class Main { /** * @param position Physical position of the camera i.e Camera.CameraInfo.CAMERA_FACING_FRONT * or Camera.CameraInfo.CAMERA_FACING_BACK. * @return the default camera id */ @TargetApi(Build.VERSION_CODES.GINGERBREAD) private static int getDefaultCameraId(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; } return -1; } }