Android Utililty Methods Base64 Decode

List of utility methods to do Base64 Decode

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Description

The list of methods to do Base64 Decode are organized into topic(s).

Method

StringdecodeBase64(String value)
decode Base 
if (!isEmpty(value)) {
    return new String(Base64.decode(value, Base64.DEFAULT));
return "";
StringdecodeBase64(String src)
decode Base 
return new String(Base64.decode(src, Base64.DEFAULT));
byte[]decode(String base64)
decode 
return Base64.decode(base64.getBytes(), Base64.DEFAULT);
byte[]decode(String data)
decode 
ByteArrayOutputStream baos = new ByteArrayOutputStream(
        data.length());
try {
    decode(data, baos);
} catch (IOException ioe) {
    throw new IllegalStateException(ioe);
return baos.toByteArray();
...
byte[]decode(String str)
decode 
byte[] data = str.getBytes();
int len = data.length;
ByteArrayOutputStream buf = new ByteArrayOutputStream(len);
int i = 0;
int b1, b2, b3, b4;
while (i < len) { 
    do {
        b1 = base64DecodeChars[data[i++]];
...
byte[]decode(String s)
Decodes a BASE64 encoded string. 
int length = s.length();
if (length == 0) {
    return new byte[0];
int sndx = 0, endx = length - 1;
int pad = s.charAt(endx) == '=' ? (s.charAt(endx - 1) == '=' ? 2
        : 1) : 0;
int cnt = endx - sndx + 1;
...
byte[]decode(String str)
decode 
StringBuffer sb = new StringBuffer();
byte[] data = str.getBytes("US-ASCII");
int len = data.length;
int i = 0;
int b1, b2, b3, b4;
while (i < len) {
    do {
        b1 = DECODE_CHARS[data[i++]];
...
byte[]fromBase64(String data)
Decode a base64 string into a byte array. 
if (data == null) {
    return null;
int len = data.length();
assert (len % 4) == 0;
if (len == 0) {
    return new byte[0];
char[] chars = new char[len];
data.getChars(0, len, chars, 0);
int olen = 3 * (len / 4);
if (chars[len - 2] == '=') {
    --olen;
if (chars[len - 1] == '=') {
    --olen;
byte[] bytes = new byte[olen];
int iidx = 0;
int oidx = 0;
while (iidx < len) {
    int c0 = base64Values[chars[iidx++] & 0xff];
    int c1 = base64Values[chars[iidx++] & 0xff];
    int c2 = base64Values[chars[iidx++] & 0xff];
    int c3 = base64Values[chars[iidx++] & 0xff];
    int c24 = (c0 << 18) | (c1 << 12) | (c2 << 6) | c3;
    bytes[oidx++] = (byte) (c24 >> 16);
    if (oidx == olen) {
        break;
    bytes[oidx++] = (byte) (c24 >> 8);
    if (oidx == olen) {
        break;
    bytes[oidx++] = (byte) c24;
return bytes;
Stringdecodes(String base64)
decodes 
return new String(decode(base64));
StringdecodeBase64(String encodedString)
decode Base 
byte[] byteData = Base64.decode(encodedString, Base64.NO_WRAP);
String decodedString = null;
try {
    decodedString = new String(byteData, "UTF-8");
} catch (UnsupportedEncodingException e) {
    e.printStackTrace();
return decodedString;
...