Fragments are modular building blocks for creating a responsive Android UI. They help you to target different devices and screen sizes while at the same time avoiding code duplication. This post starts with the Android Developers Tools generating a project for you. I then explain some of the generated code and will show you how [...]
Archive for November, 2012
Use Android’s ContentObserver in Your Code to Listen to Data Changes
November 15th, 2012
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When you are using a content provider as a client, chances are that you want to know whenever the data changes. That’s what Android’s class ContentObserver is for. To use the ContentObserver you have to take two steps: Implement a subclass of ContentObserver Register your content observer to listen for changes Implement a subclass of [...]
What You Need to Know About the Intents of Android’s Calendar App
November 8th, 2012
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When your app needs to access calendar data you have to choose whether to use the CalendarContract content provider or whether to use Intents to start specific Activities of the Calendar app. This post covers the intents offered by the official Calendar app. While with using Intents your possibilities are limited compared to those of [...]
Half a Year of Blogging About Android Development
November 5th, 2012
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Exactly six months ago I published my “Hello World” post. And one week later my first post with serious content followed: Android: Checking Connectivity. Over the last half year I have continuously blogged and there were only two weeks in which I didn’t publish any posts. According my general feeling my blog progresses nicely. And [...]
I'm Wolfram Rittmeyer, a software-developer from Germany.