Earlier today, I was just telling someone how we lesser mortals almost never get SDKs much in advance of hardware anymore. Well, we just got one: the Honeycomb SDK preview.
And, besides the preview, the SDK tools and plugins have been updated. Sounds like good stuff. Now to go digest it all for an afternoon snack.
Even if you can't use the new SDK, don't forget to update your tools.
After you've digested it, let us know your favorite new features!
Showing posts with label preview. Show all posts
Showing posts with label preview. Show all posts
Wednesday, January 26, 2011
Friday, September 17, 2010
Building an Android Application: Book Excerpt
. We think this is a particularly good excerpt, too, as it has broad topic coverage.This excerpt, from Hour 3, covers topics from application design to resources to Android Activities. And then it goes on, and covering Activity lifecycle and even Intents and various things you can do with them as a developer. You even get information about debug logging. It's not just a preview of Hour 3, it's nearly the whole chapter.
Check it out at ComputerWorld!
Tuesday, July 28, 2009
When "Eclipse loading framework information into layout resource editor" Fails
The Android Development Plug-in for Eclipse is a great tool many Android developers rely upon. I personally use some features much more than others. For example, I rarely use the Layout Resource editor to preview layout files. Instead, I just edit the XML directly and run it in the Emulator. (I have also been known to edit HTML with notepad, that's just how I roll.)So it came as a bit of a surprise (read: annoyance) when I tried to do just that--preview a layout file in Eclipse--the other day and it failed. Eclipse seemed to try to load the layout designer saying, "Eclipse is loading framework information and the Layout library from the SDK folder." Then it up and failed to load it. Over and over. You couldn't see the layout preview, nor the Properties pane or the Outline mode to add new controls to the layout tree.
You might be wondering why I bothered to investigate this since I could have just gone back to the XML and blown it off. Well, I needed a screenshot of the Layout preview mode for our new book. Nuff said.
At first, I thought it was just me overestimating the tool's abilities, trying to preview a layout that was too complex for the preview (this happens often when I include some of the more complex View controls in layouts). So I created a new project with its simple default layout file, and that didn't load either. So that wasn't it.
I did a quick search on the Android developer forums and a couple people were complaining on the forums about this over a year ago. One person suggested recreating your workspace. Well, that didn't work, either. I widened my search to the web and ran across a little note on Brian Klug's wiki, suggesting that the older versions of the Android plug-in JAR files might be hanging around, mucking things up. Thanks, Brian! This sent me in the right direction.
We've had a number of new revisions of Android lately. which have improved (greatly) the Android tool chain, that have had several new JAR file updates. Next, I had to find the android JAR files on my machine. First, I checked where Brian had suggested: c:\eclipse\plugins (basically, in the plugins directory of the eclipse installation path). As my luck would have it, they were not there. Instead, a quick file search for "com.android*.jar" showed that they were hiding in C:\Users\YourUserName\.eclipse\org.eclipse.platform_3.4.0_867647348\features.
With a little investigation, I found several older versions (0.8.x and 0.9.0) of the android JAR files installed with the new ones (0.9.1 is the latest for Android SDK 1.5 r3). I shut down Eclipse, deleted all the older JAR files, leaving only the 0.9.1 versions.
Specifically, I only kept these two android JAR files:
- com.android.ide.eclipse.adt_0.9.1.v200905011822-1621
- com.android.ide.eclipse.ddms_0.9.1.v200905011822-1621
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