One of our recent projects involve a scalable mult-chatroom service. Deciding to go the route of Node+socket.io for scalable and performance oriented service we started with the official socket.io tutorial at (http://socket.io/get-started/chat/). That worked wonderfully . As the next step we went ahead and hosted it on Azure! Here is what the socket told us! […]
Async fun with Metro Apps!
Async programming is key today. Making the user wait while you process data is passé ,not acceptable to the modern user and against all usability principles!! But the user does want to be informed when the processing is over and what was the outcome! So how do we inform the user from asynchronous method? A […]
Creating a Resolution Independent Metro App with the ViewBox!
Recently, while working on a Windows Metro App, we faced some issues with Adaptive Layout. The requirement was that our app should support all resolutions (Minimum:-1024*768, Maximum:- 2560*1440)and maintain aspect ratios when it came to images. We solved the issue using a ViewBox but had to learn a few tricks about the Viewbox first! This […]
Forcing Picasso to ignore cache and load from Network!
Picasso is a pretty cool image downloading and caching library for Android. Not only does it manage download and cache , it even allows you to manipulate the image by allowing basic transformations like rotate, resize, center, crop etc In one of our recent implementations we needed to purge the cache and reset the image […]
Localization and WhiteLabelling:- Database or Resx??
We got some queries on our recent blog on with suggestions on using the database to store the localized strings files rather than the default resx approach. We pondered over it, then pondered some more and came to the following conclusion… Problem Statement The challenge we are tackling here is of white labeling and not […]
Multitenancy and extensive Whitelabelling on the UI
When we think cloud we inherently think Multi-tenant but things can get complicated when the level of white-labelling on the UI is extensive! Layout changes are typically handled by css but if the customer wants to control what every label and textbox is called then we have a problem at hand! We recently suggested […]
Reading values from the Dimens file!
One of our Android apps demanded an infinite carousel with images overlapping each other. Surprisingly enough there are not too many examples out there on how to do this! We used a ViewPager to create the carousel taking inspiration from https://github.com/mrleolink/SimpleInfiniteCarousel. We had to make some changes here( another post on our carousel and maybe […]
A Web App to improve your Azure Machine Learning Experience!
As soon as we created our first Azure ML experiment we were eager to share it with other team mates and get their views…and we hit our first hurdle..there was no way to share the published experiment with others unless we quickly created a console app and copy paste the code that Azure has provided […]
A Beginners ramp up path to Azure Machine Learning
BigData, Analytics and Machine learning are new buzzwords everywhere you look and its easy to get overwhelmed with information when you decide to start ramping up on these! As part of an internal experiment we are doing at Cennest we’ve logged out our “learning path” for Machine learning which would take an application developer to […]
Optimizing Performance and Memory in iOS Apps (Part 2)
We’ve already been through optimizations in SQLite, NSLog and NSCache. Now we talk about careful use of NSNotifications, Auto-release and the power of GCD! Be careful with Notifications 1. Notifications are received on the same queue on which they are fired. So be careful about firing notifications on the Main queue since the receiver will […]