How to convert a bitmap to a jpeg file in Android?

Question

I'm a little bit lost here. I have to convert a bitmap from a cropped image to an .jpeg file. I have looked to other related questions but none of them were relative to mine. (most were reverted as file to bitmap)

Thanks in advance

ps. first time Android development

Answer 1

Use this:

Bitmap bmp = null;
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bmp.compress(Bitmap.CompressFormat.JPEG, 100, stream);
byte[] byteArray = stream.toByteArray();

for that you can use this:

FileInputStream fileInputStream = null;

File file = new File("yourfile");

byteArray = new byte[(int) file.length()];

try {
    //convert file into array of bytes
    fileInputStream = new FileInputStream(file);
    fileInputStream.read(bFile);
    fileInputStream.close();

    //convert array of bytes into file
    FileOutputStream fileOuputStream =
            new FileOutputStream("C:\\testing2.txt");
    fileOuputStream.write(bFile);
    fileOuputStream.close();

    System.out.println("Done");
} catch (Exception e) {
    e.printStackTrace();
}

and also for more info go with here