Home » Author Archives: Francesco Azzola (page 2)

Author Archives: 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.

Android chart tutorial: AChartEngine

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In this post, I will describe how to use AchartEngine. This is a great library for Android that help you to create charts. It supports several chart types, just to name a few: line chart area chart bar chart pie chart combined chart and so on.   This library helps you in every aspects when you create a charts so ...

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Create a jar library with gradle using AAR info

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Some posts ago, I talked about how to use gradle to push an aar to maven central. If you remember, we had to modify some files and so on, but the work we have to do helps other developers to simplify their development when they want to use our code/library. When our code is pushed to the maven central as ...

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Android SwipeRefreshLayout Tutorial

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In this post, we will describe SwipeRefreshLayout component. This component should be used whenever the user can refresh the UI using swipe gesture. In a previous post, we talked about another method to refresh the UI that we called shake to refresh, where the user shakes his smartphone and using accelerometer sensor the app refresh the UI. We talked about ...

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Guide to publish an aar to maven using gradle

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In this post, I’d like to describe the steps necessary to publish an aar to maven repository. There are other guides that cover this topic and some of the information written here are derived from them, but in this guide I want to describe the process step by step, without covering in detail the gradle aspects but focusing on creating ...

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Parsing HTML in Android with Jsoup

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In this post, I want to describe how to use JSoup in Android. JSoup is a Java library that helps us to extract and manipulate HTML file. There are some situations when we want to parse and extract some information from and HTML page instead of render it. In this case we can use JSoup that has a set of ...

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Android Shake to Refresh tutorial

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In this post we want to explore another way to refresh our app UI called Shake to Refresh. We all know the pull-to-refresh pattern that is implemented in several app. In this pattern we pull down our finger along the screen and the UI is refreshed: Even this pattern is very useful, we can use another pattern to refresh our ...

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Using Android Location API in Weather App – Search city

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In this post I would like to describe how to search a city using openweathermap to get weather conditions. There are two way we can use to find a city: Using name pattern Using geographic coordinates (Android Location API) We will introduce, moreover, some concepts about Android location API and Location-based service.   Searching city by name In this kind ...

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Consume Webservice in Android using intentService

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In this post, I will explain how to consume Restful Webservice using IntentService. We know we can consume a Webservice directly in the UI using for example Volley lib or a simple Http client, but there are some cases when we prefer to consume a Webservice in an Android Service. We know that Android Service has a “longer” life than ...

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