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Add a sliding menu with animation to an Activity


I was playing around with animation, layers and so on and i have coded this simple sliding menu. The idea is very simple when user touches the screen and moves up his finger the app shows a menu, when user touches the screen and moves down his finger this menu disappear. As you can see the idea is very simple ...

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Android AsyncTask ListView – JSON


Many times we need to populate a Listview using an AsyncTask. This is the case when we have to invoke a remote server and exchange information using JSON. In this post i want to go a bit deeper in the ListView analysis . In the previous posts, i described how to use ListView in several ways using standard and custom ...

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Akka vs Storm


I was recently working a bit with Twitter’s Storm, and it got me wondering, how does it compare to another high-performance, concurrent-data-processing framework, Akka. What’s Akka and Storm? Let’s start with a short description of both systems. Storm is a distributed, real-time computation system. On a Storm cluster, you execute topologies, which process streams of tuples (data). Each topology is ...

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Android ListView Pull-to-Refresh


In this post I want to describe how to create a custom ListView widget that behaves like Gmail list, so that when you slide down and you are at the top of the list it will be refreshed. This new UI pattern is knows as Pull-to-refresh. There are several implementation of it this is my own version. To have this ...

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Garbage Collection in Java (2)


Parallel Scavenge Today we cover how Parallel GC works. Specifically this is the combination of running a Parallel Scavenge collector over Eden and the Parallel Mark and Sweep collector over the Tenured generation. You can get this option by passing in -XX:+UseParallelOldGC though its the default on certain machine types. You may want to read my first blog post on ...

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8 Things you should not be afraid of as a Developer


Change In Software Development there is no such thing as stagnancy. Everything you develop now is just another version of a component that will probably change in the future. Change is the most common thing in Software Development, and you’re better of accepting it as a fact. Expect future changes to everything you develop, and therefor design your Code more ...

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Android – Import projects from Git


There are many cases when we have requirement and need to clone Git repository, at that time we have to clone repository by using Git Client, FYI I have installed Git GUI client on my windows machine. By cloning this way, we have to import those project into eclipse manually. Now, What if there is a way directly by which ...

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Groovy Java companion – introduction


Some of us come to Java from scripting languages like Python, Ruby or Perl. Almost everything in Java is fascinating but small things make us irritated. Java is a verbose programming language and writing programs similar in functionality to scripts is cumbersome. Dealing with stuff like XML, json, even Strings is not so handy. Things which should be straightforward are ...

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MongoDB Primary Keys Are Your Friend


All documents in a MongoDB collection have a primary key dubbed _id. This field is automatically assigned to a document upon insert, so there’s rarely a need to provide it. What’s interesting about the _id field is that it is time based. That is, the underlying type of _id, which is ObjectId, is a 12-byte BSON type, and 4 of ...

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What makes a great Developer


Passion It’s the taste of success that comes with every little task that you’ve mastered, and smart solutions you’ve found that turn out advantageous. Programming is not just a job, it’s an Art – it’s Poetry. With Passion comes Motivation and thus Progress. Software development is not only huge, but also evolving very fast. A good developer enjoy’s keeping up-to-date, ...

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