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Updated on 2026-08-14

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This commit is contained in:
Tangem 2018-06-08 14:10:28 +03:00
parent a731ddba76
commit f95c6c4fe8
3 changed files with 43 additions and 1 deletions
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5
app/src/main/java/com/tangem/domain/wallet/BtcEngine.java
View file

@ -319,8 +319,13 @@ public class BtcEngine extends CoinEngine {
}
public Uri getShareWalletURI(TangemCard mCard) {
if (mCard.getDenomination() != null) {
return Uri.parse("bitcoin:" + mCard.getWallet() + "?amount=" + BTCUtils.satoshiToBtc(mCard.getDenomination()));
} else {
return Uri.parse("bitcoin:" + mCard.getWallet());
}
}
public boolean CheckAmountValie(TangemCard mCard, String amountValue, String feeValue, Long minFeeInInternalUnits) {
Long fee = null;

19
app/src/main/java/com/tangem/domain/wallet/TangemCard.java
View file

@ -1122,6 +1122,19 @@ public class TangemCard {
offlineBalance = null;
}
private byte[] Denomination;
public void setDenomination(byte[] denomination) {
this.Denomination = denomination;
}
public byte[] getDenomination() {
return Denomination;
}
public void clearDenomination() {
Denomination = null;
}
public void setError(String error) {
this.error = error;
}
@ -1206,6 +1219,8 @@ public class TangemCard {
if (getOfflineBalance() != null) B.putByteArray("OfflineBalance", getOfflineBalance());
if (getDenomination() != null) B.putByteArray("Denomination", getDenomination());
if (getIssuerData() != null && getIssuerDataSignature() != null) {
B.putByteArray("IssuerData", getIssuerData());
B.putByteArray("IssuerDataSignature", getIssuerDataSignature());
@ -1288,6 +1303,9 @@ public class TangemCard {
if (B.containsKey("OfflineBalance")) setOfflineBalance(B.getByteArray("OfflineBalance"));
else clearOfflineBalance();
if (B.containsKey("Denomination")) setDenomination(B.getByteArray("Denomination"));
else clearDenomination();
if (B.containsKey("IssuerData"))
setIssuerData(B.getByteArray("IssuerData"), B.getByteArray("IssuerDataSignature"));
else setIssuerData(null, null);
@ -1360,3 +1378,4 @@ public class TangemCard {
public EncryptionMode encryptionMode = EncryptionMode.None;
}

18
app/src/main/java/com/tangem/util/BTCUtils.java
View file

@ -15,9 +15,12 @@ import com.tangem.domain.wallet.UnspentOutputInfo;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.math.RoundingMode;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.text.DecimalFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
@ -100,6 +103,20 @@ public final class BTCUtils {
return new String(hexChars);
}
public static String satoshiToBtc(byte[] satoshi)
{
satoshi = reverse(satoshi);
BigInteger num = new BigInteger(1, satoshi);
BigDecimal dec = new BigDecimal(num);
dec = dec.setScale(8, RoundingMode.DOWN);
dec = dec.divide(new BigDecimal("100000000"));
String pattern = "#0.00000000";
DecimalFormat myFormatter = new DecimalFormat(pattern);
String output = myFormatter.format(dec);
return output;
}
public static byte[] buildTXForSign(String myAddress, String outputAddress, String changeAddress, ArrayList<UnspentOutputInfo> unspentOutputs, int currentInputPos, long amount, long change) throws BitcoinException, IOException {
byte[] myScript = Transaction.Script.buildOutput(myAddress).bytes;
@ -491,3 +508,4 @@ public final class BTCUtils {
}
}