I have seen numerous posts regarding problems with getting Android set up and running for the first time (with at least two in the past twenty-four hours) and, as I appear to be on "help everyone with Android problems" duty, I have decided to create this post, which anyone experiencing problems setting up and / or running Android sketches should check before they ask their own question.

Before you look here, you should, of course, read the Wiki because a lot of your questions should be answered there.

Let's divide the possible problems into three categories: Build Errors, Emulator Errors, and Device Errors.

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Build Errors

You have installed the Android SDK and are just starting out your first sketch when, all of a sudden, you get that big, nasty " BUILD_FAILED " message. This is where you should look for common problems.

First, there are a couple of things to check to make sure that you are doing:

• You must use the latest version of Processing (to get the latest version of Processing, go to the Download Page and select the most recent version.
• You must have everything that is required for Android Processing: Processing itself (see above), the JDK, and the Android SDK. You must have installed all of these correctly. The Android SDK is most likely to be installed incorrectly, and this is the main source of all of the build issues.

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Emulator Errors

If you have successfully built your project (you don't get BUILD_FAILED ) but you cannot start the emulator (errors such as NOT_BOOTED or NOT_RUNNING ), then you've come to the right place.

If all of the errors mentioned above are resolved, then check the following:

• Open the AVD Manager and check to see if a Processing emulator exists. If it does not, then Processing could not successfully create an emulator. You can try creating one (such as "Processing-0206") by doing the following:
  
  • Click the New button.
  • Enter a name and select a target (must be at least API level 9).
  • Everything else you can leave blank. Click Create AVD.
  Now, try starting your new emulator. Select it and click Start. If the emulator starts up properly, then the problem is with Processing. If not, then there is something wrong with the way that the SDK is set up. Make sure that all of the packages are installed in the SDK Manager.

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Device Errors

Content to be supplied later

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Lastly, there are a couple of pieces of information that are useful to us, people that are trying to help you, answer your question quickly, if your problem is not resolved my reading the above:

• Your operating system
• What version of the Android SDK you're using

For a long time, I've been able to create full-screen applications with the typical frame.setUndecorated(true) call and then relocating the frame to the top left corner of the screen with frame.setLocation(0, 0). However, I've always had to relocate the frame in the first frame of draw, otherwise it would fail to work.

I recently discovered that other people do not have this problem in the thread "Present" (full-screen mode) stretched across Multiple Screens, but it was rather distracting from the original problem, so I have come to write this post.

I'm running Windows 7 64 bit with both Processing 1.5.1 and 2.0a7.

From the thread above, the following code is supposed to work, although it doesn't:

1. public void init() {
2.   frame.removeNotify();
3.   frame.setUndecorated(true);
4.   frame.addNotify();
5.   super.init();
6. }
7. 
   
8. void setup() {
9.   size(displayWidth, displayHeight);
10.   frame.setLocation(0, 0); //This does not work
    
11. }
12. 
    
13. void draw() {
14.   println(millis());
15. }

I always end up using something like this:

1. void setup() {
2.   size(displayWidth, displayHeight);
3.   frame.setLocation(0, 0); //This doesn't work
4. }
5. 
   
6. public void init() {
7.   frame.removeNotify();
8.   frame.setUndecorated(true);
9.   frame.addNotify();
10.   super.init();
11. }
12. 
    
13. void draw() {
14.   if(frameCount == 1) frame.setLocation(0, 0); //This does
15.  
16.   println(millis());
17. }

A while ago, I was inspired by Chrisir's post here.
I have created my own shape generator, "Vertexator", on OpenProcessing.

In addition to Chrisir's implementation, it allows you to select and modify vertices, and to copy the necessary code to the clipboard upon pressing the spacebar.
The clipboard functionality is only available with a signed jar, so you may have to give permission for it to run...

I'd like to know what you think.

Am I mistaken, or was the forum just down for an hour?
I tried accessing it from three different computers, two web browsers, and two networks.
It appears that it's back online now...

Based on what it says in the Tool Basics wiki, it looks like Processing 2.0 is going to have a Tool / Library Installer built into the PDE. I just noticed this, becuase for the past couple of days, I had been working on writing just that.

Does anyone know more about this?
Has the development already been started?
Would what I already have be useful to the development of Processing 2.0?

If this is the wrong place for me to be asking about Processing 2.0 development, please feel free to say so.

Hello, guys-
I've been working on this application Hex Doodler for a while, and now I have finally put it up on the Android Market.
It can be found for free here.

From the title, it should be obvious that it is still in beta- so I am open to suggestions as well as any bug reports.

I have currently only been able to test it on my GTab, and it runs fine on that...
Note that this was developed on a tablet and might look fairly squished on a smaller device.

Thanks!