init

app/src/main/java/com/sw/inbound/ext/StringExt.kt

@@ -0,0 +1,89 @@
+package com.sw.inbound.ext
+
+import java.math.BigDecimal
+import java.math.RoundingMode
+
+fun String.isValidAmount(): Boolean {
+    // 空字符串允许（用于删除所有字符）
+    if (this.isEmpty()) return true
+
+    // 检查是否只包含数字和小数点
+    if (!matches(Regex("^\\d*\\.?\\d*$"))) return false
+
+    // 检查小数点数量（最多一个）
+    if (count { it == '.' } > 1) return false
+
+    // 检查小数点后位数（最多2位）
+    if (contains('.')) {
+        val decimalPart = substringAfter('.')
+        if (decimalPart.length > 2) return false
+    }
+
+    // 检查不以小数点开头
+    if (startsWith('.')) return false
+
+    return true
+}
+
+fun String.isNumeric(): Boolean {
+    return this.matches("-?\\d+(\\.\\d+)?".toRegex())
+}
+
+fun String.toFormattedString(decimalPlaces: Int = 2): String {
+    return when (this) {
+        else -> "%.${decimalPlaces}f".format(this)
+    }
+}
+
+fun String.toSafeBigDecimal(
+    scale: Int = 2,
+    roundingMode: RoundingMode = RoundingMode.HALF_UP
+): BigDecimal {
+    return when {
+        this.isBlank() -> BigDecimal.ZERO.setScale(scale, roundingMode)
+        this == "." -> BigDecimal.ZERO.setScale(scale, roundingMode)
+        else -> try {
+            BigDecimal(this.trim())
+                .setScale(scale, roundingMode)
+        } catch (e: Exception) {
+            BigDecimal.ZERO.setScale(scale, roundingMode)
+        }
+    }
+}
+
+fun String.isValidNumber(): Boolean {
+    return matches(Regex("^\\d*$"))
+}
+
+fun String.toSafeInt(): Int {
+    return if (this.isEmpty()) {
+        0
+    } else {
+        this.toInt()
+    }
+}
+
+fun String.toSafeDouble(): Double {
+    return if (this.isEmpty()) {
+        0.0
+    } else {
+        this.toDouble()
+    }
+}
+
+fun String.isValidFloat(): Boolean {
+    if (startsWith(".")) return false
+    val decimalRegex = Regex("^\\d*\\.?\\d{0,2}$")
+    return this.matches(decimalRegex)
+//    return input.matches(Regex("-?\\d+(\\.\\d+)?"))
+}
+
+fun String.toSafeFloat(maxDecimalDigits: Int = 2): Float {
+    return if (this.isEmpty()) {
+        0f
+    } else if (isValidFloat()) {
+        toFloat()
+    } else {
+        0f
+    }
+}