About Francesco Azzola

I'm a senior software engineer with more than 15 yrs old experience in JEE architecture. I'm SCEA certified (Sun Certified Enterprise Architect), SCWCD, SCJP. I'm an android enthusiast and i've worked for long time in the mobile development field.

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Android Fragment Lifecycle – multiple screen support

Fragment lifecycle is an important aspect to take into account before using fragments. Every developer, that wants to develop an application in Android, has to face the mobile phone fragmentation problem or the multiple screen siz ...
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Fragment in Android: Tutorial with Example using WebView

In this post we want to explain how to use fragment in Android with a real example. In the last post we talked about Fragment in Android and how we can use it to support multiple screen. We described their lifecycle and how we can ...
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Android Apache HTTP Client

In this post I want to describe how to build an HTTP client using Apache library. In one of my post I describe how we can use HttpUrlConnection to create a client. Using Apache library I want to explain how we can make POST reques ...
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Android ListView – Tutorial and basic example

One of the UI component we use often is ListView, for example when we need to show items in a vertical scrolling list. One interesting aspect is this component can be deeply customized and can be adapted to our needs. In this firs ...
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Android HTTP Client: GET, POST, Download, Upload, Multipart Request

Often Android apps have to exchange information with a remote server. The easiest way is to use the HTTP protocol as base to transfer information. There are several scenarios where the HTTP protocol is very useful like downloading ...
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Android: Build real weather app: JSON, HTTP and Openweathermap

In this post I want to describe how to create a weather app that gives current weather information. This app will use JSON, HTTP connection and AsyncTask to get this information.. As weather provider I will use OpenWeatherMap a fr ...
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Android Fragment transaction: FragmentManager and Backstack

Fragments are useful when we want to support multiple screen size. To manage fragments we need a FragmentManager that help us to handle trasaction between fragments. With transaction we mean a sequence of steps to add, replace or ...
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Android ListView context menu: ActionMode.CallBack

In this post we want to analyze the context menu (contextual action bar). This is a menu that is related to a specific item. The contextual menu can be applied to almost all views but it is usually used with ListView. We talk a lo ...
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Android: Navigation drawer with account picker – Google Drive SDK

This post describes how to create a navigation drawer with an account picker. Navigation drawer is a new UI pattern introduced in the last I/O. To do it I will use the new Google Service API with Drive SDK mixing them in order to ...
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Android listview background row style: Rounded Corner, alternate color

One aspect we didn’t consider in the previous posts is how we can apply style or background to the Listview items (or row). We can customize the look of the ListView in the way we like, for example with can use as background rou ...
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