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What’s Your Preference: Part One
Android now has a preferences framework, which will build a preferences UI for you based on a description of the desired preferences. Learn the basics in today’s episode of Building ‘Droids!
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Op-Ed: We Have Met Android, And It Is Us
Device users don’t buy “openness” – they buy benefits that they personally realize. And to that extent, Android will succeed or fail based on our efforts as developers. If openness is Android’s strength, it is up to us to make that meaningful to ordinary people.
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Layout Problems Redux: Hierarchy Viewer
In the previous Building ‘Droids post, we went through an exercise of figuring out what was going wrong with a RelativeLayout used as rows in a ListView. This exercise used “retro” diagnostic techniques, such as changing background colors, to see what’s going on. Two commenters, …
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Diagnosing Layout Problems
Yesterday, a post came over the transom on the [android-developers] Google Group, citing a problem in getting a RelativeLayout to work properly as a row in a ListView. Since I screwed up my initial response to that post, I figured I’d document and write up …
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0.9 SDK Tips #1: The Hidden Changes
This is the first in a series of blog posts to help those of you with M5 applications make the jump to the 0.9 SDK. Also, if you see a tutorial dated before mid-August, that tutorial is from M5, and so these blog posts may …
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Fun with Fonts
Inevitably, you’ll get the question “hey, can we change this font?” when doing application development. The answer depends on what fonts come with the platform, whether you can add other fonts, and how to apply them to the widget or whatever needs the font change. …
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Flipping Your Views
Let’s face it: phones are small. Even if you have a phone with excellent screen resolution, the physical screen size is still rarely over 3″x5″, since most people want phones that can fit in a pocket, purse, pouch, or poncho. This means your Android activities …
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Scripting Your Android Device
One of the issues that arose when Apple released the iPhone SDK earlier this year was the restriction on language interpreters: No interpreted code may be downloaded and used in an Application except for code that is interpreted and run by Apple’s Published APIs and …
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Fancy ListViews, Part Six: Custom Widget
In this, the last and longest of our Fancy ListView posts, we’ll cover what it takes to wrap up the logic from the ChecklistDemo from a previous post and turn it into a reusable CheckListView that can serve as a drop-in replacement for ListView. Before …
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Fancy ListViews, Part Four
In our last episode, we took a closer look at the ViewHolder/ViewWrapper pattern for making ListViews that much more efficient to render. Today, we switch gears, and take a look at having interactive elements in ListView rows. Specifically, we’ll look at a crude implementation of …
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Fancy ListViews, Part Three
In our last episode, we saw how we could save processing time — and, hence, battery life — by recycling existing row views in our fancy lists, simply by checking and reusing the convertView parameter passed into our getView(). In his comment to this series’ …
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