Prompt text in an EditText:

I have no experience with APWidgets, but judging by the fact that this feature isn't included in the Advanced EditText Example, I don't think it's possible.

Getting APTextView to work:

If you look at the APTextView Source, the class is abstract, so it cannot be instantiated. You need to use an extending class; as far as I can tell, EditText is the only one. Perhaps you could look at the source of EditText to write your own, extending APTextView...

I can't seem to compile the source code for the apwidgets library on my own.   I would like to add code or create a new subclass of APEditText - however, I can not compile any of the source files (even unchanged).   

I've tried with JCreator (Java IDE), and I've tried with Eclipse with the android plugin installed but no luck.   Eclipse is a little tricky when trying to compile just one file and not have a whole involved project.   With what tools should an android class be compiled on its own?

Here's one of the puzzling errors that I got when compiling with JCreator (I know this is Java and not android sdk but here's the error anyways...)

    pApplet.runOnUiThread(new Runnable() {
                public void run() {
              
                    ((RelativeLayout.LayoutParams)view.getLayoutParams()).setMargins(getX(), getY(), 0, 0);
                    view.requestLayout();
                }
            });

 MESSAGE:  cannot find symbol
symbol  : method runOnUiThread(<anonymous java.lang.Runnable>)
location: class processing.core.PApplet


Thanks for any advice anyone might have.

Umm... you don't need to recompile the library, that is totally unnecessary. Just create a class, like any other class, within the Processing IDE; except you have to extend APTextView and do what is done similarly to EditText.

Thanks very much, calsign.   Works great!     A few questions remains though...

(1) I would like to wrap up some classes into a processing "contributed library".   I've always just used a Java IDE to generate java class files, then add them to the jar and the library folder structure.  Will the same process work for libraries that are to be used in android mode of processing?   

(2) Does processing use a different version of the core.jar (and a different version of the PApplet class) when in Android mode?

Thanks again everyone.

(1)

The best way to create a contributed library is to read the Eclipse Library Template Tutorial. I've been able to get it to work successfully many times before.

(2)

Android does use a different set of core libraries... most prominently, if you Google search "papplet source", the first two are both PApplet; the first being Android, the second being Standard. I find "android-core.zip" in processing-2.0a7 > modes > android. I haven't tried using it, although I imagine you can import it instead of the "core.jar" file from within Eclipse.

Thanks once again for your helpful (and speedy) advice.  

Everything is working great.   I did go into the android-core.zip file fro processing 2.0a7 and used the core folder in there in place of the usual core.jar that I had been importing.  After that, everything compiled nicely.

Thank again.