Image rescale and write rescaled image file in blackberry

Posted by Karthick on Stack Overflow See other posts from Stack Overflow or by Karthick
Published on 2010-05-19T06:16:03Z Indexed on 2010/05/19 6:20 UTC
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I am using the following code to resize and save the file in to the blackberry device. After image scale I try to write image file into device. But it gives the same data. (Height and width of the image are same).I have to make rescaled image file.Can anyone help me ???

class ResizeImage extends MainScreen implements FieldChangeListener { private String path="file:///SDCard/BlackBerry/pictures/test.jpg"; private ButtonField btn; ResizeImage() { btn=new ButtonField("Write File"); btn.setChangeListener(this); add(btn); } public void fieldChanged(Field field, int context) { if (field == btn) { try {
InputStream inputStream = null; //Get File Connection FileConnection fileConnection = (FileConnection) Connector.open(path); if (fileConnection.exists()) { inputStream = fileConnection.openInputStream(); //byte data[]=inputStream.toString().getBytes();

                    ByteArrayOutputStream baos = new ByteArrayOutputStream();
                    int j = 0;
                    while((j=inputStream.read()) != -1) {
                    baos.write(j);
                    }
                    byte data[] = baos.toByteArray();                
                    inputStream.close();
                    fileConnection.close();  

                    WriteFile("file:///SDCard/BlackBerry/pictures/org_Image.jpg",data);           


                    EncodedImage  eImage = EncodedImage.createEncodedImage(data,0,data.length);                               
                    int scaleFactorX = Fixed32.div(Fixed32.toFP(eImage.getWidth()), Fixed32.toFP(80));
                    int scaleFactorY = Fixed32.div(Fixed32.toFP(eImage.getHeight()), Fixed32.toFP(80));
                    eImage=eImage.scaleImage32(scaleFactorX, scaleFactorY);   

                    WriteFile("file:///SDCard/BlackBerry/pictures/resize.jpg",eImage.getData());

                    BitmapField bit=new BitmapField(eImage.getBitmap());                       
                    add(bit);

                }       
            }
            catch(Exception e)
            {
                System.out.println("Exception is ==> "+e.getMessage());
            }

        }
   }


   void WriteFile(String fileName,byte[] data)
   {
       FileConnection fconn = null;
        try
        {
            fconn = (FileConnection) Connector.open(fileName,Connector.READ_WRITE);
        } 
        catch (IOException e) 
        {
            System.out.print("Error opening file");
        }

        if (fconn.exists())
        try 
        {
            fconn.delete();
        }
        catch (IOException e)
        {
            System.out.print("Error deleting file");
        }
        try 
        {
            fconn.create();
        }
        catch (IOException e) 
        {
            System.out.print("Error creating file");
        }
        OutputStream out = null;
        try
        {
            out = fconn.openOutputStream();
        } 
        catch (IOException e) {
            System.out.print("Error opening output stream");
        }

        try 
        {
            out.write(data);
        }
        catch (IOException e) {
            System.out.print("Error writing to output stream");
        }

        try
        {
            fconn.close();
        } 
        catch (IOException e) {
            System.out.print("Error closing file");
        }
    }

}

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