Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Open Source License 

import android.content.Context;
import android.content.pm.PackageManager;
import android.hardware.Camera;
import android.util.Log;

public class Main {
    private static String TAG = "com.example.asm.CameraUtils";

    /**
     * A safe way to get an instance of the Camera object.
     */
    public static Camera getCameraInstance(Context context, int CameraId) {
        Camera c = null;
        if (!checkCameraHardware(context)) {
            return c; // device has no camera
        }

        try {
            c = Camera.open(CameraId); // attempt to get a Camera instance
            Log.d(TAG, "open camera succeed");
        } catch (Exception e) {
            // Camera is not available (in use or does not exist)
            Log.d(TAG, "open camera failed");
        }
        return c; // returns null if camera is unavailable
    }

    /** Check if this device has a camera */
    private static boolean checkCameraHardware(Context context) {
        if (context.getPackageManager().hasSystemFeature(PackageManager.FEATURE_CAMERA)) {
            // this device has a camera
            return true;
        } else {
            // no camera on this device
            Log.d(TAG, "no camera on this device");
            return false;
        }
    }
}