[MUSIC] Most mobile devices these days come equipped with a camera and also the ability to store photos within in a photo album and being able to view those photos from the photo album or capture images and video, using the camera. So the obvious question that comes about is can we make use of the camera within our Ionic application? And indeed, this is where that camera plugin comes to our aid. The camera plugin allows you to access radius features of your building camera on your mobile device. Let's look at some of the details next. So how do they make use of the camera and what can we use the camera for? As you would expect the camera can be used for many purposes. First and foremost to be able to obtain a picture from the camera. You can also obtain video from the camera. Also you can go one step further and then make use of your camera for doing bar code scanning, optical character recognition and many other features. In this lesson, we will examine how they can make use of camera to capture a picture from our built in camera on or mobile device. So to enable us to use the camera, Cordova provides a camera plugin that enables you to access the built-in camera on the mobile device. Both the front camera as well as the back camera, in case your device is equipped with multiple cameras. And the Cordova camera plugin also enables you to access the built-in photo library or the photo gallery on your mobile device in order to pick a picture from the photo library and make use of it within your application. To of course, make use of the camera plugin, you need to install that camera plugin. We will see the use of the camera plugin in the exercise that follows this lecture. So we install that cordova-plugin-camera and then the corresponding ionic wrapper that enables us to access the camera from within our Ionic application. So once you have access to the camera, the camera plugin also provides you with many different ways of obtaining data from the camera, and also configured various aspects about how you can obtain the picture from the camera. In particular, the image data that can be obtained either from the camera or from the photo library, can be obtained in the form of a this 60 foot encoded string which can be used inside your JavaScript object. Or you can configure your camera plugin to return the string which corresponds to the URI off that file which contains the image you want to make use of. So the default is to import the image from the local storage of your device, and so will return a URI of the file of the storage of the device. Also, that camera plug-in provides various camera options that you can configure before you access the camera using a method called the get picture method' on your camera plug-in. So the various options that you can make use of include the quality, which can be specified as a range from 0 to 100, 100 being the highest quality that you can obtain. The destination, whether you want to store it in the form of a basics to foreign codex string or put it into file and then obtain the URL of the file system. And then or add it to your photo gallery and to obtain the corresponding reference to the image in the photo gallery. The source type can be specified as either the camera or the photo library on your mobile device. The encoding type, you can either specify it to be either JPEG or PNG file. You can also specify the target width and height of the image that should be obtained from your camera. So that way, you can control how large the size of the file that'll be generated when you access the image information from either the camera, or from the photo library. You can also specify the media type, and then the correct the orientation of the image. You can also specify which camera you want to make use of in case your device equipped with both front and back camera. You can choose one of those cameras then obtain the image from that particular camera. You can also do some rudimentary editing using the simple editing tools that are available on your mobile device like coping off the image after it is obtained from the camera before being saved, either in the form of a basic support string, or onto the file storage. In the exercise that follows we will see how we can configure some of these options within our Ionic application and then access the camera in order to obtain that picture from the camera. Let me illustrate that to you in an example. In our Ionic application. In the next exercise, we're going to configure application to have a registration form included in the application. And then this registration form will provide you with an ability to obtain a picture which when use as your representative picture when you're registering yourself on the site for our application. So you can either click on the take picture option and then access the camera so you can see that you can access the camera and then obtain information from the camera. You can capture the image, and then also do some simple editing of the image, and then make use of the image within the registration form here. You can also get the image from the library, so from the image gallery. You can go to the image gallery and then pick the image from the image gallery. This you will do as part of your assignment. So where you will be selecting and image from the photo gallery of your application and then make use of it within your application. So, here you see an example of the use of camera. Similarly, the use of the bar code scanning plug-in or the QR code scanning plug-in that are available enable you to scan codes using the built in camera on your mobile device. [MUSIC]
