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Author Archives: Chryssa Aliferi

Chryssa is a Computer Science graduate from Athens University of Economic and Business. During her studies, Chryssa carried out a great variety of projects ranging from networking to software engineering. She is very keen on front end development especially on mobile technologies and web applications. She has worked as a junior Software Engineer in the telecommunications area and currently works as an Android Developer.

Android Google Analytics v4 Example

Google Analytics is a service offered by Google that generates detailed statistics about a website’s traffic and traffic sources. It’s the most widely used website statistics service. However, nowadays, that mobile applications traffic has increased, detailed statistics from mobile platforms are also very important. Google Analytics for mobile applications can measure user behavior in your app from installs to engagement ...

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Android Physical Keys Example

Every Android device is provided with physical keys. In the wide variety of Android mobile devices, we may meet devices with three or four physical or virtual keys, however the default and most common pattern nowadays, are the three basic soft keys, which are the back button KEYCODE_BACK, the home button KEYCODE_HOME, and the menu button KEYCODE_MENU. Android devices, in ...

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Android Barcode and Qr Scanner Example

Every Android mobile device, has the ability to read QR codes as well as scanning barcodes to bring a lot of product information, of help us visit a website url, or storing a Contact inside our device’s memory. In this example, we are going to see how the Android Barcode and Qr Scanner is implemented via the use of the ...

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Android Video Capture Example

In a simple and modern Android application, it is becoming very common, that the camera is used not only to capture basic portraits and landscape views, but also to be used for other reasons, for instance to capture video, produce small video clips and rendering them under various alternations, either to post on social media or for personal use. The ...

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Android Canvas Example

Android provides a set of APIs for 2D-drawing that allow you to render your custom graphics on a canvas or modify the existing Views. When drawing 2D graphics, you have two choices to work with: Draw your graphics or animations into a View object from your layout. In this way, the drawing of your graphics is handled by the system’s ...

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Android Google Places API Example

In the example, we are going to see how can we use one of the most famous, public, social APIs, The Google Places API. The Google Places API allows you to query for place information on a variety of categories, such as: establishments, prominent points of interest, geographic locations, and more. You can search for places either by proximity or ...

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Android Foursquare API Example

In the example, we are going to see how can we use one of the most famous, public, social APIs, The Foursquare API. Foursquare is a local search and discovery service mobile and web app which provides a personalized local search experience for its users. Foursquare lets the user search for restaurants, nightlife spots, shops and other places of interest ...

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Android Database Example

In Android programming, storing data into a database is not a common practice, as we have other and most suitable methods to store our data, such as the SharedPreferences way. However, we do have a very strong tool, that can help our Android Application communicate with a database, and this is SQLite. SQLite is an Open Source Database for structured ...

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Android Camera Example

In our previous Android Example, we tried to explain the use of Android SurfaceView through a simple camera application. In the meantime, we realized how important is the “camera mode” in a simple and modern Android application, as nowadays it is becoming very common, that the camera is used not only to capture basic portraits and landscape views, but also ...

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Android SurfaceView Example

In Android, all simple layout views are all drawn on the same GUI thread which is also used for all user interaction. So if we need to update GUI rapidly or if the rendering takes too much time and affects user experience then we should use SurfaceView. The Android SurfaceView provides a dedicated drawing surface embedded inside of a view ...

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