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Updated on 2026-08-14

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Tangem 2024-05-20 18:08:47 +05:00
parent b0685c106c
commit c04abfe0bb
1 changed files with 39 additions and 21 deletions
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60
core/ui/src/main/java/com/tangem/core/ui/components/fields/AmountTextField.kt
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@ -28,6 +28,7 @@ import androidx.compose.ui.tooling.preview.PreviewParameterProvider
import com.tangem.core.ui.components.fields.visualtransformations.AmountVisualTransformation
import com.tangem.core.ui.res.TangemTheme
import com.tangem.core.ui.utils.*
import java.math.BigDecimal
import java.text.DecimalFormat
/**
@ -123,32 +124,49 @@ fun AmountTextField(
private fun prepareEnter(oldValue: String, newValue: String, decimalFormat: DecimalFormat, decimals: Int): String {
val decimalSymbol = decimalFormat.decimalFormatSymbols.decimalSeparator
return if (decimalFormat.isValidSymbols(newValue)) {
val parsedValue = newValue.parseBigDecimalOrNull()?.toPlainString()
?: if (newValue.isBlank()) "" else oldValue
val replacedWithSymbol = if (parsedValue.findLast { it != decimalSymbol } != null) {
when {
parsedValue.findLast { it == COMMA_SEPARATOR } != null -> {
parsedValue.replace(COMMA_SEPARATOR, decimalSymbol)
}
parsedValue.findLast { it == POINT_SEPARATOR } != null -> {
parsedValue.replace(POINT_SEPARATOR, decimalSymbol)
}
else -> parsedValue
}
} else {
parsedValue
}
val joinedSymbol = if (newValue.endsWith(COMMA_SEPARATOR) || newValue.endsWith(POINT_SEPARATOR)) {
replacedWithSymbol.plus(decimalSymbol)
} else {
replacedWithSymbol
}
decimalFormat.getValidatedNumberWithFixedDecimals(joinedSymbol, decimals)
val parsedDecimal = newValue.parseBigDecimalOrNull()
val parsedValue = parsedDecimal?.toPlainString() ?: if (newValue.isBlank()) "" else oldValue
val replacedWithSymbol = parsedValue.replaceDecimalSymbol(decimalSymbol)
val joinedSymbol = replacedWithSymbol.preserveDecimalSymbol(newValue, decimalSymbol)
val withPreservedZeros = joinedSymbol.preserveTrailingZeros(newValue, parsedDecimal, decimalSymbol)
decimalFormat.getValidatedNumberWithFixedDecimals(withPreservedZeros, decimals)
} else {
oldValue
}
}
private fun String.replaceDecimalSymbol(decimalSymbol: Char) = if (this.findLast { it != decimalSymbol } != null) {
when {
this.findLast { it == COMMA_SEPARATOR } != null -> {
this.replace(COMMA_SEPARATOR, decimalSymbol)
}
this.findLast { it == POINT_SEPARATOR } != null -> {
this.replace(POINT_SEPARATOR, decimalSymbol)
}
else -> this
}
} else {
this
}
private fun String.preserveDecimalSymbol(newValue: String, decimalSymbol: Char) = if (
newValue.endsWith(COMMA_SEPARATOR) || newValue.endsWith(POINT_SEPARATOR)
) {
this.plus(decimalSymbol)
} else {
this
}
private fun String.preserveTrailingZeros(newValue: String, parsedDecimal: BigDecimal?, decimalSymbol: Char): String {
val trailingZeros = newValue.split(decimalSymbol).getOrNull(1)?.takeLastWhile { it == '0' }.orEmpty()
return if (parsedDecimal?.scale() == 0 && trailingZeros.isNotEmpty()) {
"$this$decimalSymbol$trailingZeros"
} else {
this.plus(trailingZeros)
}
}
private fun DecimalFormat.isValidSymbols(text: String): Boolean {
return checkDecimalSeparatorDuplicate(text)
}