Example usage for java.io ByteArrayOutputStream ByteArrayOutputStream

Introduction

In this page you can find the example usage for java.io ByteArrayOutputStream ByteArrayOutputStream.

Prototype

public ByteArrayOutputStream()

Source Link

Document

Creates a new ByteArrayOutputStream .

Usage

From source file:Main.java

public static byte[] readFileToByteArray2(File file) {
    try {/*from  w w  w .  jav  a2 s .  c  o m*/
        FileInputStream fis = new FileInputStream(file);
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        byte[] buf = new byte[1024];

        for (int readNum; (readNum = fis.read(buf)) != -1;) {
            bos.write(buf, 0, readNum);
        }
        bos.flush();
        byte[] bytes = bos.toByteArray();
        fis.close();
        bos.close();
        return bytes;

    } catch (IOException e) {
        return null;
    }
}

From source file:Main.java

/**
 * generate base64 from bitmap image/*w ww  . java2 s  . c om*/
 * @param mBitmap bitmap image
 * @return base64 string
 */
public static String ImageToBase64(Bitmap mBitmap) {
    ByteArrayOutputStream baos1 = new ByteArrayOutputStream();
    mBitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos1);
    byte[] b1 = baos1.toByteArray();
    return Base64.encodeToString(b1, Base64.DEFAULT);
}

From source file:Main.java

public static String openAsBase64(String imgPath) {
    Bitmap photo = BitmapFactory.decodeFile(imgPath);
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    photo.compress(Bitmap.CompressFormat.JPEG, 85, baos);
    byte[] b = baos.toByteArray();
    photo.recycle();// w w  w .  j  av a 2s. c o  m
    return Base64.encodeToString(b, Base64.DEFAULT);

}

From source file:Main.java

/**
 * convert Bitmap to InputStream/*from w w w  .j  a v a2  s  .  co m*/
 */
public static InputStream bitmapToStream(Bitmap bitmap, Bitmap.CompressFormat compressFormat) {
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    bitmap.compress(compressFormat, 100, bos);
    return new ByteArrayInputStream(bos.toByteArray());
}

From source file:Main.java

public static byte[] Bitmap2Bytes(Bitmap bm) {
    if (bm == null) {
        return null;
    }/*from  w w w  .  j a v a  2s. c o m*/
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    bm.compress(CompressFormat.PNG, 100, baos);

    if (bm != null) {
        bm.recycle();
        bm = null;
    }

    return baos.toByteArray();
}

From source file:Main.java

public static byte[] bitmapToByteArray(Bitmap bitmap, Bitmap.CompressFormat format) {
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    bitmap.compress(format, 100, out);//from  w ww.j  a va2  s  .c  om
    return out.toByteArray();
}

From source file:Main.java

public static byte[] getAppIconByte(Context c, String packageName) {
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    try {// w w  w. jav a2s . co m
        BitmapDrawable drawable = (BitmapDrawable) c.getPackageManager().getApplicationIcon(packageName);
        drawable.getBitmap().compress(Bitmap.CompressFormat.PNG, 100, out);
    } catch (NameNotFoundException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    return out.toByteArray();
}

From source file:Main.java

public static byte[] decodeB(byte[] bytes) throws IOException {
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    int i = 0;/*from  ww w.ja v  a2s  .  co m*/
    int len = bytes.length;
    while (i < len) {
        char[] four = new char[4];
        int j = 0;
        while (j < 4) {
            byte b = bytes[i++];
            if (b != '\r' || b != '\n')
                four[j++] = (char) b;
        }
        int k;
        if (four[3] == '=') {
            if (four[2] == '=') {
                k = 1;
            } else {
                k = 2;
            }
        } else {
            k = 3;
        }
        int aux = 0;
        for (j = 0; j < 4; j++) {
            if (four[j] != '=') {
                aux = aux | (chars.indexOf(four[j]) << (6 * (3 - j)));
            }
        }
        for (j = 0; j < k; j++) {
            out.write((aux >>> (8 * (2 - j))) & 0xFF);
        }
    }
    out.close();
    return out.toByteArray();
}

From source file:Main.java

public static String converStream2String(InputStream is, String charset) throws UnsupportedEncodingException {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    byte[] buffer = new byte[512];
    int len = 0;/*from  w  w  w  .  j av  a  2 s .c  o  m*/

    try {
        while ((len = is.read(buffer)) != -1) {
            baos.write(buffer, 0, len);
        }
        is.close();
        return new String(baos.toByteArray());
    } catch (Exception e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    return new String(baos.toByteArray(), charset);
}

From source file:Main.java

public static byte[] Drawable2ByteArray(Drawable drawable) {
    Bitmap bitmap = ((BitmapDrawable) drawable).getBitmap();
    ByteArrayOutputStream stream = new ByteArrayOutputStream();
    return stream.toByteArray();
}