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Fix balance unexpected rounding and app crashing issue (#1838)

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Co-authored-by:  Colette Kerr <colette.m.y.kerr@gmail.com>
This commit is contained in:
simosathan9
2024-04-24 22:41:22 +03:00
committed by GitHub
parent 40da1d2e16
commit 9bb1602370
1 changed files with 22 additions and 3 deletions
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25
app/src/main/java/protect/card_locker/Utils.java
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@@ -66,6 +66,7 @@ import java.nio.charset.StandardCharsets;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.text.NumberFormat;
import java.text.DecimalFormat;
import java.text.ParseException;
import java.util.ArrayList;
import java.util.Calendar;
@@ -419,9 +420,29 @@ public class Utils {
return numberFormat.format(value);
}
private static final double LargestPreciseDouble = (double) (1l << 53);
static{
assert (LargestPreciseDouble + 1.0) == LargestPreciseDouble;
assert (LargestPreciseDouble - 1.0) != LargestPreciseDouble;
}
private static BigDecimal fromParsed(Number parsed){
if(parsed instanceof BigDecimal)
return (BigDecimal) parsed;
final double d = parsed.doubleValue();
if(d >= LargestPreciseDouble)
return new BigDecimal(parsed.longValue());
return new BigDecimal(d);
}
static public BigDecimal parseBalance(String value, Currency currency) throws ParseException {
NumberFormat numberFormat = NumberFormat.getInstance();
if (numberFormat instanceof DecimalFormat) {
((DecimalFormat) numberFormat).setParseBigDecimal(true);
}
if (currency == null) {
numberFormat.setMaximumFractionDigits(0);
} else {
@@ -429,9 +450,7 @@ public class Utils {
numberFormat.setMaximumFractionDigits(currency.getDefaultFractionDigits());
}
Log.d(TAG, numberFormat.parse(value).toString());
return new BigDecimal(numberFormat.parse(value).toString());
return fromParsed(numberFormat.parse(value));
}
static public byte[] bitmapToByteArray(Bitmap bitmap) {