org.spongycastle.util.encoders.DecoderException Java Examples

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    IntentResult result = IntentIntegrator.parseActivityResult(requestCode, resultCode, data);
    if(result != null) {
        if(result.getContents() != null) {
            try {
                Protocol.Transaction transaction = Protocol.Transaction.parseFrom(Hex.decode(result.getContents()));
                if(getContext() != null) {
                    ConfirmTransactionActivity.start(getContext(), transaction);
                }
            } catch (InvalidProtocolBufferException | DecoderException ignored) { }
        }
    } else {
        super.onActivityResult(requestCode, resultCode, data);
    }
}
 

/**
    * Decodes a hex string to address bytes and checks validity
    *
    * @param hex
    *            - a hex string of the address, e.g.,
    *            6c386a4b26f73c802f34673f7248bb118f97424a
    * @return - decode and validated address byte[]
    */
   public static byte[] addressStringToBytes(String hex) {
final byte[] addr;
try {
    addr = Hex.decode(hex);
} catch (DecoderException addressIsNotValid) {
    return null;
}

if (isValidAddress(addr))
    return addr;
return null;
   }
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_signed_transaction);

    mSignedTransactionQR_ImageView = findViewById(R.id.SignedTransaction_qr_imageView);
    mConstraintLayout = findViewById(R.id.SignedTransaction_constraintLayout);

    mConstraintLayout.setVisibility(View.INVISIBLE);

    Bundle extras = getIntent().getExtras();
    if (extras != null) {
        try {
            mTransactionSigned = Protocol.Transaction.parseFrom(extras.getByteArray(TRANSACTION_DATA_EXTRA));
        } catch (InvalidProtocolBufferException | DecoderException ignored) {
        }
    }

    if (mTransactionSigned != null) {
        mSignedTransactionQR_ImageView.setImageBitmap(Utils.strToQR(Hex.toHexString(mTransactionSigned.toByteArray()), 650, 650));
        showQR();
    } else {
        new LovelyStandardDialog(SignedTransactionActivity.this)
                .setTopColorRes(R.color.colorPrimary)
                .setIcon(R.drawable.ic_info_white_24px)
                .setTitle(R.string.invalid_transaction)
                .setMessage(R.string.no_valid_transaction_detected)
                .setPositiveButton(R.string.ok, new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        finish();
                    }
                })
                .show();
    }
}
 

/**
 * Decodes a hex string to address bytes and checks validity
 *
 * @param hex - a hex string of the address, e.g., 6c386a4b26f73c802f34673f7248bb118f97424a
 *
 * @return - decode and validated address byte[]
 */
public static byte[] addressStringToBytes(String hex) {
  byte[] addr;
  try {
    addr = Hex.decode(hex);
  } catch (DecoderException addressIsNotValid) {
    return null;
  }

  if (isValidAddress(addr)) return addr;
  return null;
}
 

/**
 * Decodes a hex string to address bytes and checks validity
 *
 * @param hex - a hex string of the address, e.g., 6c386a4b26f73c802f34673f7248bb118f97424a
 * @return - decode and validated address byte[]
 */
public static byte[] addressStringToBytes(String hex) {
    final byte[] addr;
    try {
        addr = Hex.decode(hex);
    } catch (DecoderException addressIsNotValid) {
        return null;
    }

    if (isValidAddress(addr)) {
        return addr;
    }
    return null;
}
 

/**
   * Decodes a hex string to address bytes and checks validity 
   * 
   * @param hex - a hex string of the address, e.g., 6c386a4b26f73c802f34673f7248bb118f97424a
   * @return - decode and validated address byte[]
   */
  public static byte[] addressStringToBytes(String hex) {
  	byte[] addr = null;
try { addr = Hex.decode(hex); }
  	catch(DecoderException addressIsNotValid) { return null; }

if(isValidAddress(addr))
	return addr;
return null;
  }
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_sign_transaction);

    mUnsignedTransactionQR_ImageView = findViewById(R.id.SignTransaction_qr_imageView);
    mSignedTransaction_Switch = findViewById(R.id.SignTransaction_signed_switch);
    mScanFromColdWallet_Button = findViewById(R.id.SignTransaction_qr_imageButton);

    mColdWalletQR_ConstraintLayout = findViewById(R.id.SignTransaction_cold_wallet_qr_constraintLayout);
    mScanColdWalletQR_ConstraintLayout = findViewById(R.id.SignTransaction_scan_cold_wallet_qr_constraintLayout);


    mScanColdWalletQR_ConstraintLayout.setAlpha(0);

    Bundle extras = getIntent().getExtras();

    if (extras != null) {
        try {
            byte[] transactionData = extras.getByteArray(TRANSACTION_DATA_EXTRA);
            mTransactionUnsigned = Protocol.Transaction.parseFrom(transactionData);

            if(transactionData != null) {
                Bitmap bitmap = Utils.strToQR(Hex.toHexString(transactionData), 800, 800);
                mUnsignedTransactionQR_ImageView.setImageBitmap(bitmap);
            }
        } catch (DecoderException | IOException e) {
            e.printStackTrace();
        }
    }

    mSignedTransaction_Switch.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
            mScanColdWalletQR_ConstraintLayout
                    .animate()
                    .setDuration(150)
                    .alpha(isChecked ? 1 : 0)
                    .scaleX(isChecked ? 1 : 0)
                    .scaleY(isChecked ? 1 : 0)
                    .start();
        }
    });

    mScanFromColdWallet_Button.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            IntentIntegrator integrator = new IntentIntegrator(SignTransactionActivity.this);
            integrator.setDesiredBarcodeFormats(IntentIntegrator.QR_CODE);
            integrator.setPrompt(getString(R.string.scan_signed_transaction));
            integrator.setCameraId(0);
            integrator.setBeepEnabled(false);
            integrator.setOrientationLocked(true);
            integrator.setCaptureActivity(CaptureActivityPortrait.class);
            integrator.initiateScan();
        }
    });
}