Image rescale and write rescaled image file in blackberry
- by Karthick
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");
}
}
}
