Android examples for java.lang:Byte Array
save byte array to File
import java.io.File; import java.io.FileOutputStream; public class Main { private static final File DESTINY_DIR = new File("/sdcard/unlocksecurity/"); public static void saveFile(byte[] data, String fileName) throws RuntimeException { if (!DESTINY_DIR.exists() && !DESTINY_DIR.mkdirs()) { return;/*from w w w .j a va 2 s . com*/ } File mainPicture = new File(DESTINY_DIR, fileName); try { FileOutputStream fos = new FileOutputStream(mainPicture); fos.write(data); fos.close(); } catch (Exception e) { throw new RuntimeException("Image could not be saved.", e); } } }