gistfile1.java

public static final String getKeyHash(Context context) {
    try {
        PackageInfo info = context.getPackageManager().getPackageInfo(context.getPackageName(), PackageManager.GET_SIGNATURES);
        for (Signature signature : info.signatures) {
            MessageDigest md = MessageDigest.getInstance("SHA");
            md.update(signature.toByteArray());
            String keyHash = Base64.encodeToString(md.digest(), Base64.DEFAULT);
            Logger.d(TAG + "KeyHash:%s", keyHash);
            return keyHash;
        }
        
    } catch (NameNotFoundException e) {
    	Logger.d(TAG + "getKeyHash Error:%s", e.getMessage());
    } catch (NoSuchAlgorithmException e) {
    	Logger.d(TAG + "getKeyHash Error:%s", e.getMessage());
    }
    
    return "";
}