It must have been somewhere in 2004 when I listened to a single podcast every day for more than a week. Each day when commuting to work and back it was the podcast called “Capturing the Upside” by Clayton Christensen. I was so impressed by the amount of insights and knowledge shared in this podcast that I bought his first two books immediately. It was Clayton Christensen who coined the theory of Disruptive innovation. When you read Eric Ries his book on Lean Startup you can recognize this movement leverages the Disruptive Innovation theory: e.g. initial “crappy” products(mvp) enter a small part of the incumbents market and not considered/recognized a threat.
Posts Tagged ‘Android’
Co-written by Gian Luca Ortelli and Ashkan Roshanayi.
Trifork was asked to develop a mobile app for crisis management in a “GRIP 1” crisis situation for Dutch municipalities.The users of the app are municipal employees involved during a crisis situation. The app was designed in co-creation with the involved municipal employees. But what is a crisis?
When I started with my Android application, I had the idea to create a home screen and an action bar just like one of the Android developers described in a blog item. I was really helped by the source code of the Google I/O Schedule app. In this post I will explain how I used several layouts to create my app.
As Android is really hot at the moment (and I have an Android phone), I wanted to create an Android app for my website. In this blog post I will explain the changes I had to make on the part of my web application and how I used Spring Android to interact from Android to my web application.
Since a week I have the latest Android phone of Sony Ericsson, the X10. As it is my first Android phone, the first thing I did was searching the Android Market for great apps to get the maximum out of my Android system.
In this post I will show you my selection of apps that I found useful, interesting or just fun to have.
In my travels through the world of Android I faced a lot of challenges. Brave as I am, *cough* I conquered each one of them. A few of the challenges include saving activity state, asynchronous tasks, pagination, error handling, context/option menu’s and even drawing custom application/tab icons in Photoshop! Some challenges I already shared with you guys, but there is one challenge in particular I would like to elaborate on this time.
The app I am currently building is getting larger every day, and so is the main Activity class! Because my main activity contains a TabHost with a bunch of tabs, it also contains references to all individual view components contained in those tabs. All kinds of listeners are registered on those components so the activity contains some inner and anonymous classes as well. So you could say that this activity now has way too much responsibility! What I was looking for, is a way to separate the main activity into multiple parts, each with its own clear responsibility.
As it turns out, you can create custom components for a single piece of functionality within an Activity. Exactly what I was looking for!
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And I’m back! Reporting live on the glorious adventures in the exciting world of Android. This blog post is the second one in the Android series. This time with code samples! Yeah!
In my first blog post about Android I talked about setting up a project using Android. This time I want to discuss a more “advanced” topic: ListView performance. A ListView is a view component which allows you to display and scroll through a list of items. It can display simple text in each row, but is also able to display a more complicated structure. In the latter case you will need to make sure your ListView still performs well (read: renders fast and scrolls smoothly). I am going to provide solutions to a few different performance problems when using a ListView
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