In Processing if you want that a function is executed in a diferent thread, you have just to use the following command:

thread("myFunc"); // this command creates a new thread and executes myFunc in that thread

void myFunc(){ ... }

The restriction is that 'myFunc' must be void, with no parameters and it could not be declared in a subclass in the sketch (it must be a public function in the pApplet class).

If you nedd that 'myFunc' has parameters, See this Post

enjoy this.

you ca use the class 'java.lang.reflect.Method' to invoke a method

 

if you want to see how, see my Blog. There you will find a class that implements a way to send a method as a parameter.

See me Blog:

2. //http://developer.android.com/reference/android/media/RingtoneManager.html
3. 
   
4. import android.media.Ringtone;
5. import android.media.RingtoneManager;
6. import android.database.Cursor;
7. 
   
8. RingtoneManager ringManager;
9. Ringtone ring;
10. Cursor cursor;
11. 
    
12. void setup() {
13.   size(screenWidth, screenHeight, A2D);
14.   ringManager = new RingtoneManager(this);
15.   cursor = ringManager.getCursor();
16.   maxN = cursor.getCount();  
17.   ring = ringManager.getRingtone(0);  
18. }
19. 
    
20. 
    
21. int maxN;
22. int n = 1;
23. 
    
24. void draw() {  ;  }
25. 
    
26. 
    
27. void mouseReleased(){
28.   if(ring.isPlaying()){
29.     ring.stop();
30.     ring = ringManager.getRingtone(n);
31.     n = (n < maxN-1)? n+1 : 0;
32.   }else{ 
33.     ring.play();
34.   }
35. }

See my Blog

2. void setup(){...}
3. void draw() {...}
4. 
   
5. //www.akeric.com/blog/?p=1313
6. 
   
7. 
   
8. //-----------------------------------------------------------------------------------------
9. // Override the parent (super) Activity class:
10. // States onCreate(), onStart(), and onStop() aren't called by the sketch.  Processing is entered at
11. // the 'onResume()' state, and exits at the 'onPause()' state, so just override them:
12. 
    
13. void onResume() {
14.   super.onResume();
15. 
    
16.   setWindowBright();
17. 
    
18.   println("RESUMED! (Sketch Entered...)");
19. }
20. 
    
21. import android.view.WindowManager;
22. import android.view.WindowManager.LayoutParams;
23. 
    
24. 
    
25. 
    
26. void setWindowBright(){
27.   getWindow().addFlags(LayoutParams.FLAG_KEEP_SCREEN_ON | LayoutParams.FLAG_TURN_SCREEN_ON);  
28. 
    
29. // to set a diferent bright level (other than default)
30. //  WindowManager.LayoutParams layoutParams = getWindow().getAttributes();
31. //  layoutParams.screenBrightness = 0.8f;                   
32. //  getWindow().setAttributes(layoutParams); 
33. }

To install the lybrary follow this LINK.

You will get better results if you compile the library by yourself (you will get a newer version)

My Blog

1. // http://code.google.com/p/zxing/wiki/GettingStarted
   // http://blog.makezine.com/archive/2011/03/codebox-use-qr-codes-in-processing.html
   // http://code.google.com/p/zxing/wiki/DeveloperNotes
   // http://zxing.org/w/docs/javadoc/index.html
   // http://code.google.com/p/zxing/source/browse/trunk#trunk%2Fcore%2Fsrc
   // http://zxing.org/w/docs/javadoc/com/google/zxing/client/j2se/package-frame.html
   // http://code.google.com/p/zxing/source/browse/trunk#trunk%2Fjavase%2Fsrc%2Fcom%2Fgoogle%2Fzxing%2Fclient%2Fj2se
   // http://code.google.com/p/zxing/source/browse/trunk/android/src/com/google/zxing/client/android/encode/QRCodeEncoder.java
   
   
   
   
   import com.google.zxing.*;
   import java.awt.image.BufferedImage;
   
   
   int SIZE = 400;
   
   
   //com.google.zxing.Writer writer = new com.google.zxing.qrcode.QRCodeWriter();
   //http://zxing.org/w/docs/javadoc/index.html
   //com.google.zxing.Reader reader = new com.google.zxing.qrcode.QRCodeReader();
   MultiFormatWriter writer = new MultiFormatWriter();
   MultiFormatReader reader = new MultiFormatReader();
   BitMatrix QRBitMatrix = new BitMatrix(SIZE, SIZE);
   BarcodeFormat format = BarcodeFormat.QR_CODE;
   // QR_CODE
   // DATA_MATRIX
   // UPC_E
   // UPC_A
   // EAN_8
   // EAN_13
   // CODE_128
   // CODE_39 ATENCIÓ Només Numèric
   // ITF
   
   
   
   
   
   
   void setup(){
   size(SIZE, SIZE);
   
   
   PImage img = new PImage(SIZE, SIZE);
   String codi = "Hola";//println(codi.length());
   
   
   img = codificaBarCcode(codi, format, SIZE, SIZE);
   
   
   image(img, 0, 0);
   img.save(savePath("data\\QR.jpg"));
   
   
   println(decodificaBarCode(img));
   }
   
   
   
   
   
   
   PImage codificaBarCcode(String codi, BarcodeFormat format, int ample, int alt){
   color negre = color(0), blanc = color(255);
   PImage img = new PImage(ample, alt);
   Hashtable hints = new Hashtable (1);
   hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");
   
   try {
   QRBitMatrix = writer.encode(codi, format, ample, alt, hints);
   } catch (Exception e) {println(e.toString());}
   
   int width = QRBitMatrix.getWidth();
   int height = QRBitMatrix.getHeight();
   
   for (int y = 0; y < height; y++) {
   int offset = y * width;
   for (int x = 0; x < width; x++) {
   if(QRBitMatrix.get(x, y)) img.set(x, y, negre); else img.set(x, y, blanc);
   }
   }
   return(img);
   }
   
   
   
   
   String decodificaBarCode(PImage img){
   String retorn = "";
   Result result = null;
   
   try {
   LuminanceSource source = new BufferedImageLuminanceSource((BufferedImage)img.getImage());
   BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
   result = reader.decode(bitmap);
   retorn = result.getText();
   if (retorn != null) {
   //println(result.getText());
   ResultPoint[] points = result.getResultPoints();
   
   for (int i = 0; i < points.length; i++) {
   fill(#ff8c00);
   ellipse(points[i].getX(), points[i].getY(), 20,20);
   }
   }
   } catch (Exception e) {println(e.toString());}
   
   return(retorn);
   }

Here yo have the code: