Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Apache License 

import android.hardware.Camera;

public class Main {
    private static int backCameraId = -1;
    private static int cameraNumber = -1;

    public static int getBackCameraId() {
        if (backCameraId == -1) {
            Camera.CameraInfo cameraInfo = new Camera.CameraInfo();
            for (int i = 0; i < getCameraNumber(); i++) {
                Camera.getCameraInfo(i, cameraInfo);
                if (cameraInfo.facing == Camera.CameraInfo.CAMERA_FACING_BACK) {
                    backCameraId = i;
                    break;
                }
            }
        }
        return backCameraId;
    }

    public static int getCameraNumber() {
        if (cameraNumber == -1) {
            cameraNumber = Camera.getNumberOfCameras();
        }
        return cameraNumber;
    }

    public static Camera.CameraInfo getCameraInfo(int id) {
        if (id >= 0 && id < getCameraNumber()) {
            Camera.CameraInfo cameraInfo = new Camera.CameraInfo();
            Camera.getCameraInfo(id, cameraInfo);
            return cameraInfo;
        }
        return null;
    }
}