private void switchCurrency() {
int newDecimalPlaces;
BigDecimal newAmount;
if (_enterFiatAmount) {
// We are switching from Fiat to BTC
// Set BTC button
Button btCurrency = (Button) findViewById(R.id.btCurrency);
btCurrency.setText(_mbwManager.getBitcoinDenomination().getUnicodeName());
// Set BTC balance
((TextView) findViewById(R.id.tvMaxAmount)).setText(getBalanceString(_balance));
newDecimalPlaces = _mbwManager.getBitcoinDenomination().getDecimalPlaces();
Long satoshis = getSatoshisToSend();
if (satoshis == null) {
newAmount = null;
} else {
newAmount = BigDecimal.valueOf(satoshis).divide(BigDecimal.TEN.pow(newDecimalPlaces));
}
} else {
// We are switching from BTC to Fiat
// Set Fiat button
Button btCurrency = (Button) findViewById(R.id.btCurrency);
btCurrency.setText(_mbwManager.getFiatCurrency());
// Set Fiat balance
String fiatBalance = Utils.getFiatValueAsString(_balance, _oneBtcInFiat);
String balanceString =
getResources().getString(R.string.max_fiat, fiatBalance, _mbwManager.getFiatCurrency());
((TextView) findViewById(R.id.tvMaxAmount)).setText(balanceString);
newDecimalPlaces = 2;
Long fiatCents = getFiatCentsToSend();
if (fiatCents == null) {
newAmount = null;
} else {
newAmount = BigDecimal.valueOf(fiatCents).divide(BigDecimal.TEN.pow(newDecimalPlaces));
}
}
// Note: Do the boolean switch before updating numberEntry, as there is
// feedback from numberEntry back to ourselves
_enterFiatAmount = !_enterFiatAmount;
_numberEntry.setEntry(newAmount, newDecimalPlaces);
// Check whether we can enable the paste button
findViewById(R.id.btPaste).setEnabled(enablePaste());
}
private BigDecimal getAmountFromClipboard() {
String content = Utils.getClipboardString(GetSendingAmountActivity.this);
if (content.length() == 0) {
return null;
}
String number = content.toString().trim();
if (_enterFiatAmount) {
number = Utils.truncateAndConvertDecimalString(number, 2);
if (number == null) {
return null;
}
BigDecimal value = new BigDecimal(number);
if (value.compareTo(BigDecimal.ZERO) < 1) {
return null;
}
return value;
} else {
number =
Utils.truncateAndConvertDecimalString(
number, _mbwManager.getBitcoinDenomination().getDecimalPlaces());
if (number == null) {
return null;
}
BigDecimal value = new BigDecimal(number);
if (value.compareTo(BigDecimal.ZERO) < 1) {
return null;
}
return value;
}
}
@Override
public void onClick(View arg0) {
BigDecimal clipboardValue = getAmountFromClipboard();
if (clipboardValue == null) {
return;
}
_numberEntry.setEntry(
clipboardValue, _mbwManager.getBitcoinDenomination().getDecimalPlaces());
}
private Long getSatoshisToSend() {
BigDecimal entry = _numberEntry.getEntryAsBigDecimal();
if (entry == null) {
return null;
}
if (_enterFiatAmount) {
return Utils.getSatoshis(entry, _oneBtcInFiat);
} else {
int decimals = _mbwManager.getBitcoinDenomination().getDecimalPlaces();
Long satoshis = entry.movePointRight(decimals).longValue();
return satoshis;
}
}
private void maximizeAmount() {
if (_maxSendable == 0) {
String msg = getResources().getString(R.string.insufficient_funds);
_toast.setText(msg);
_toast.show();
} else {
if (_enterFiatAmount) {
switchCurrency();
}
int newDecimalPlaces = _mbwManager.getBitcoinDenomination().getDecimalPlaces();
BigDecimal newAmount =
BigDecimal.valueOf(_maxSendable).divide(BigDecimal.TEN.pow(newDecimalPlaces));
_numberEntry.setEntry(newAmount, newDecimalPlaces);
}
}
// todo de-duplicate code
private Long getFiatCentsToSend() {
Double fiatAmount;
BigDecimal entry = _numberEntry.getEntryAsBigDecimal();
if (entry == null) {
return null;
}
if (_enterFiatAmount) {
fiatAmount = entry.doubleValue();
} else {
int decimals = _mbwManager.getBitcoinDenomination().getDecimalPlaces();
Long satoshis = entry.movePointRight(decimals).longValue();
fiatAmount = Utils.getFiatValue(satoshis, _oneBtcInFiat);
}
Double fiatCents = fiatAmount * 100;
return fiatCents.longValue();
}
@SuppressLint("ShowToast")
@Override
public void onCreate(Bundle savedInstanceState) {
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
super.onCreate(savedInstanceState);
setContentView(R.layout.get_sending_amount_activity);
_toast = Toast.makeText(this, "", Toast.LENGTH_SHORT);
_mbwManager = MbwManager.getInstance(getApplication());
// Get intent parameters
_wallet = Preconditions.checkNotNull((Wallet) getIntent().getSerializableExtra("wallet"));
_spendable =
Preconditions.checkNotNull(
(SpendableOutputs) getIntent().getSerializableExtra("spendable"));
// May be null
_oneBtcInFiat = (Double) getIntent().getSerializableExtra("oneBtcInFiat");
Long amount = (Long) getIntent().getSerializableExtra("amountToSend");
// Load saved state
if (savedInstanceState != null) {
amount = (Long) savedInstanceState.getSerializable("amountToSend");
}
// Construct list of outputs
_outputs = new LinkedList<UnspentTransactionOutput>();
_outputs.addAll(_spendable.unspent);
_outputs.addAll(_spendable.change);
// Construct private key ring
_privateKeyRing = _wallet.getPrivateKeyRing();
// Determine and set balance
_balance = 0;
for (UnspentTransactionOutput out : _outputs) {
_balance += out.value;
}
((TextView) findViewById(R.id.tvMaxAmount)).setText(getBalanceString(_balance));
// Calculate the maximum amount we can send
_maxSendable = getMaxAmount();
// Set amount
String amountString;
if (amount != null) {
amountString = CoinUtil.valueString(amount, _mbwManager.getBitcoinDenomination(), false);
} else {
amountString = "";
}
TextView tvAmount = (TextView) findViewById(R.id.tvAmount);
tvAmount.setText(amountString);
_numberEntry =
new NumberEntry(
_mbwManager.getBitcoinDenomination().getDecimalPlaces(), this, this, amountString);
checkTransaction();
// Make both currency button and invisible right button at top a listener
// switch currency
Button btCurrency = (Button) findViewById(R.id.btCurrency);
btCurrency.setText(_mbwManager.getBitcoinDenomination().getUnicodeName());
btCurrency.setEnabled(_oneBtcInFiat != null);
btCurrency.setOnClickListener(switchCurrencyListener);
findViewById(R.id.btRight).setOnClickListener(switchCurrencyListener);
// Make both paste button and invisible left button at top a listener to
// paste from clipboard
Button btPaste = (Button) findViewById(R.id.btPaste);
btPaste.setOnClickListener(pasteListener);
findViewById(R.id.btLeft).setOnClickListener(pasteListener);
// Next Button
findViewById(R.id.btOk).setOnClickListener(okClickListener);
// Max Button
findViewById(R.id.btMax).setOnClickListener(maxClickListener);
}