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Updated on 2026-08-14

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Tangem 2019-10-02 15:50:20 +03:00
parent d6062e2184
commit cc12aaf593
4 changed files with 55 additions and 23 deletions
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50
app/src/main/java/com/tangem/wallet/xlm/XlmEngine.java
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@ -361,7 +361,7 @@ public class XlmEngine extends CoinEngine {
}
Operation operation;
if (isAccountCreated(targetAddress))
if (coinData.isTargetAccountCreated())
operation = new PaymentOperation.Builder(KeyPair.fromAccountId(targetAddress), new AssetTypeNative(), amountValue.toValueString()).build();
else
operation = new CreateAccountOperation.Builder(KeyPair.fromAccountId(targetAddress), amountValue.toValueString()).build();
@ -414,24 +414,41 @@ public class XlmEngine extends CoinEngine {
};
}
// network call inside, don't use on main thread
private boolean isAccountCreated(String address) {
private void checkTargetAccountCreated(BlockchainRequestsCallbacks blockchainRequestsCallbacks, String targetAddress, Amount amount) {
final ServerApiStellar serverApi = new ServerApiStellar(ctx.getBlockchain());
StellarRequest.Balance request = new StellarRequest.Balance(address);
ServerApiStellar.Listener listener = new ServerApiStellar.Listener() {
@Override
public void onSuccess(StellarRequest.Base request) {
coinData.setTargetAccountCreated(true);
blockchainRequestsCallbacks.onComplete(true);
}
try {
serverApi.doStellarRequest(ctx, request);
} catch (IOException e) {
Log.e(TAG, e.getMessage());
return true; // suppose account is created if anything goes wrong TODO:check
}
if (request.errorResponse != null && request.errorResponse.getCode() == 404)
return false;
else
return true;
@Override
public void onFail(StellarRequest.Base request) {
Log.i(TAG, "onFail: " + request.getClass().getSimpleName() + " " + request.getError());
if (request.errorResponse.getCode() == 404) {
coinData.setTargetAccountCreated(false);
if (amount.compareTo(coinData.getReserve()) >= 0) { //TODO: take fee inclusion in account, now 1 XLM with fee included will fail after transaction is sent
blockchainRequestsCallbacks.onComplete(true);
} else {
ctx.setError(R.string.confirm_transaction_error_not_enough_xlm_for_create);
blockchainRequestsCallbacks.onComplete(false);
}
} else { // suppose account is created if anything goes wrong
coinData.setTargetAccountCreated(true);
blockchainRequestsCallbacks.onComplete(true);
}
}
};
serverApi.setListener(listener);
serverApi.requestData(ctx, new StellarRequest.Balance(targetAddress));
}
@Override
@ -501,9 +518,8 @@ public class XlmEngine extends CoinEngine {
@Override
public void requestFee(BlockchainRequestsCallbacks blockchainRequestsCallbacks, String targetAddress, Amount amount) throws Exception {
// TODO: get fee stats?
coinData.minFee = coinData.normalFee = coinData.maxFee = coinData.getBaseFee();
blockchainRequestsCallbacks.onComplete(true);
checkTargetAccountCreated(blockchainRequestsCallbacks, targetAddress, amount); //TODO: move?
}
@Override