I've managed to embed a font which I can access through Typeface.createFromAsset, however, there is also the "file:///android_asset/.." protocol.
I tried using "file:///android_asset/fonts/myfont.ttf" for Typeface.createFromFile, but this does not work ? Strange as I would have thought that file:///android_asset is handled by the system and thus Typeface would be able to get an InputStream ?
So my specific question is: Why doesn't the file:///android_asset/ protocol work with Typeface.createFromFile ?
The solution I opted for was to write a binary array into a cache file, then use Typeface.createFromFile(path)
with the cache file.
The solution looks like this:
final protected static char[] hexArray = "0123456789ABCDEF".toCharArray();
public static String bytesToHex (byte[] bytes)
{
char[] hexChars = new char[bytes.length * 2];
for (int j = 0; j < bytes.length; ++j)
{
int v = bytes[j] & 0xff;
hexChars[j * 2] = hexArray[v >>> 4];
hexChars[j * 2 + 1] = hexArray[v & 0x0f];
}
return new String (hexChars);
}
final private java.util.Map dataCache = new java.util.HashMap();
synchronized private final File getDataCacheFile (byte[] data)
{
try
{
java.security.MessageDigest digest = java.security.MessageDigest.getInstance ("MD5");
digest.update (data);
String key = bytesToHex (digest.digest());
if (dataCache.containsKey (key))
return (File) dataCache.get (key);
File f = new File (this.getCacheDir(), "bindata_" + key);
f.delete();
FileOutputStream os = new FileOutputStream (f);
os.write (data, 0, data.length);
dataCache.put (key, f);
return f;
}
catch (Throwable e) {}
return null;
}
private final void clearDataCache()
{
java.util.Iterator it = dataCache.values().iterator();
while (it.hasNext())
{
File f = (File) it.next();
f.delete();
}
}
public final Typeface getTypeFaceFromByteArray (byte[] data)
{
try
{
File f = getDataCacheFile (data);
if (f != null)
return Typeface.createFromFile (f);
}
catch (Exception e)
{
Log.e ("<tag>", e.toString());
}
return null;
}