andrioid - Developer IT

Andrioid shake detection on emulator

- by cppdev

Hi, I am pretty new to android. I have a use case where I need to detect a shake and show some images in my application. Can I test shake functionality on android emulator ? What are the other alternatives apart from testing it on a real phone ?

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A minimal Linux distribution for my ASUS EEE PC

- by Andrioid

I recently bought myself a ASUS EEE 1000HE and I intend to use it for note-taking and light browsing at the University. The machine has a 10" screen so the interface needs to be very compact. I've already tried: EEEbuntu: Very nice driver support and out of the box experience. But I feel that it is too slow booting and the general experience is too heavy in my opinion. Moblin 2: Looks very cool, boots just fine but is way too unstable to use. Also find it annoying that I can't find hotkey documentation anywhere. Any Netbook OS recommendation welcome (although those specific to my model would be great). There is an entire jungle of distributions out there, so if you've been on a safari, please share your experience.

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Caching/preloading files on Linux into RAM

- by Andrioid

I have a rather old server that has 4GB of RAM and it is pretty much serving the same files all day, but it is doing so from the hard drive while 3GBs of RAM are "free". Anyone who has ever tried running a ram-drive can witness that It's awesome in terms of speed. The memory usage of this system is usually never higher than 1GB/4GB so I want to know if there is a way to use that extra memory for something good. Is it possible to tell the filesystem to always serve certain files out of RAM? Are there any other methods I can use to improve file reading capabilities by use of RAM? More specifically, I am not looking for a 'hack' here. I want file system calls to serve the files from RAM without needing to create a ram-drive and copy the files there manually. Or at least a script that does this for me. Possible applications here are: Web servers with static files that get read alot Application servers with large libraries Desktop computers with too much RAM Any ideas? Edit: Found this very informative: The Linux Page Cache and pdflush As Zan pointed out, the memory isn't actually free. What I mean is that it's not being used by applications and I want to control what should be cached in memory.

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android emulator is start but window show blank screen

- by saravanan

when i run the andrioid application. emulator is start well, but screen doesn't show anything.

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Simple RSS parser for Android

- by Andrioid

Hello, I am trying to create my first Android application and I'm not all that experienced with Java development. In short, the application needs to do the following: On click, fetch a RSS feed online Parse it for data Show the data I've been browsing for guides, tutorials and documentation but the parsers I've found so far only deal with local strings or files or are way too complicated for me to go through at this point. Can you provide me a link to a good XML parser class (that is included in the Android SDK) Provide me with an example of its use. An example of how the feed would get fetched from the Internet (curl? or something internal?) (Bonus) Tips and hints on how this would be best achieved. Thanks in advance.

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Most inappropriate function or variable names you have encountered?

- by Andrioid

I was reading through my daily doze of RSS when I noticed a link to the python compiler documentation where class names like assList, assName and assTuple exist. While starting names with 'ass' is perfectly acceptable to me, it just sparked this idea that there probably exist much better examples of this. Have you personally used or otherwise encountered any inappropriate function or variable names? Personally I have used 'crap' and 'moo' for temporary purposes, forgot them and at a later point they came too integrated for me to bother with fixing them.

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Android: Getting Error: Conversion to Dalvik format failed

- by Rupesh C

I am building an app on android and running into an error and while searching on net, came across your posting on this and changed the eclipse.ini to increase Xms and Xmx params but still this error does not go away. I am using Eclipse IDE for Java with Andrioid SDK 2.1 on Mac OS. Please help or please point me to someone who might know. Btw, this error only happens when i add external jar files (which i need for my project). here are the list of external jar files that i have in my classpath.) // httpclient-4.0.1.jar from apache // httpcore -4.0.1.jarfrom apache // commons-codec-1.3.jar from apache //commons-logging-1.1.1.jar from apache // json_simple-1.1.jar from google Here is the complete error: UNEXPECTED TOP-LEVEL EXCEPTION: java.lang.IllegalArgumentException: already added: Lorg/apache/commons/logging/impl/AvalonLogger; [2010-05-02 21:57:05 - MyApp] at com.android.dx.dex.file.ClassDefsSection.add(ClassDefsSection.java:123) [2010-05-02 21:57:05 - MyApp] at com.android.dx.dex.file.DexFile.add(DexFile.java:143) [2010-05-02 21:57:05 - MyApp] at com.android.dx.command.dexer.Main.processClass(Main.java:301) [2010-05-02 21:57:05 - MyApp] at com.android.dx.command.dexer.Main.processFileBytes(Main.java:278) [2010-05-02 21:57:05 - MyApp] at com.android.dx.command.dexer.Main.access$100(Main.java:56) [2010-05-02 21:57:05 - MyApp] at com.android.dx.command.dexer.Main$1.processFileBytes(Main.java:229) [2010-05-02 21:57:05 - MyApp] at com.android.dx.cf http://com.android.dx.cf.direct.ClassPathOpener.pro .direct.ClassPathOpener.processArchive(ClassPathOpener.java:244) [2010-05-02 21:57:05 - MyApp] at com.android.dx.cf.direct.ClassPathOpener.processOne(ClassPathOpener.java:130) [2010-05-02 21:57:05 - MyApp] at com.android.dx.cf.direct.ClassPathOpener.process(ClassPathOpener.java:108) [2010-05-02 21:57:05 - MyApp] at com.android.dx.command.dexer.Main.processOne(Main.java:247) [2010-05-02 21:57:05 - MyApp] at com.android.dx.command.dexer.Main.processAllFiles(Main.java:183) [2010-05-02 21:57:05 - MyApp] at com.android.dx.command.dexer.Main.run(Main.java:139) [2010-05-02 21:57:05 - MyApp] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [2010-05-02 21:57:05 - MyApp] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [2010-05-02 21:57:05 - MyApp] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [2010-05-02 21:57:05 - MyApp] at java.lang.reflect.Method.invoke(Method.java:592) [2010-05-02 21:57:05 - MyApp] at com.android.ide.eclipse.adt.internal.sdk.DexWrapper.run(Unknown Source) [2010-05-02 21:57:05 - MyApp] at com.android.ide.eclipse.adt.internal.build.ApkBuilder.executeDx(Unknown Source) [2010-05-02 21:57:05 - MyApp] at com.android.ide.eclipse.adt.internal.build.ApkBuilder.build(Unknown Source) [2010-05-02 21:57:05 - MyApp] at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:627) [2010-05-02 21:57:05 - MyApp] at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) [2010-05-02 21:57:05 - MyApp] at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:170) [2010-05-02 21:57:05 - MyApp] at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:201) [2010-05-02 21:57:05 - MyApp] at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:253) [2010-05-02 21:57:05 - MyApp] at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) [2010-05-02 21:57:05 - MyApp] at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:256) [2010-05-02 21:57:05 - MyApp] at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:309) [2010-05-02 21:57:05 - MyApp] at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:341) [2010-05-02 21:57:05 - MyApp] at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:140) [2010-05-02 21:57:05 - MyApp] at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:238) [2010-05-02 21:57:05 - MyApp] at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2010-05-02 21:57:05 - MyApp] 4 errors; aborting [2010-05-02 21:57:05 - MyApp] Conversion to Dalvik format failed with error 1 Thanks, Rupesh

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