TWD 顯示改為整數（四捨五入到個位）

android/app/src/main/java/tw/local/botrates/MainActivity.kt

@@ -86,10 +86,10 @@ private fun parseAmount(s: String): Double? =
     s.filter { it != ',' && !it.isWhitespace() }.takeIf { it.isNotEmpty() }?.toDoubleOrNull()
 
 private fun roundHalfUp(v: Double): BigDecimal =
-    BigDecimal.valueOf(v).setScale(2, RoundingMode.HALF_UP)
+    BigDecimal.valueOf(v).setScale(0, RoundingMode.HALF_UP)
 
 private fun formatTwd(v: Double): String =
-    DecimalFormat("#,##0.00").format(roundHalfUp(v))
+    DecimalFormat("#,##0").format(roundHalfUp(v))
 
 private fun formatTwdRaw(v: Double): String =
     roundHalfUp(v).toPlainString()

bot_rates_rs/src/main.rs

@@ -139,12 +139,9 @@ fn parse_amount(s: &str) -> Option<f64> {
 }
 
 fn format_twd(v: f64) -> String {
-    let rounded = (v * 100.0).round() / 100.0;
+    let rounded = v.round() as i64;
-    let sign = if rounded < 0.0 { "-" } else { "" };
+    let sign = if rounded < 0 { "-" } else { "" };
-    let abs = rounded.abs();
+    let int_str = rounded.unsigned_abs().to_string();
-    let int_part = abs.trunc() as u64;
-    let frac = ((abs - int_part as f64) * 100.0).round() as u64;
-    let int_str = int_part.to_string();
     let mut with_sep = String::new();
     for (i, ch) in int_str.chars().rev().enumerate() {
         if i > 0 && i % 3 == 0 {
@@ -153,12 +150,11 @@ fn format_twd(v: f64) -> String {
         with_sep.push(ch);
     }
     let int_sep: String = with_sep.chars().rev().collect();
-    format!("{sign}{int_sep}.{frac:02}")
+    format!("{sign}{int_sep}")
 }
 
 fn format_twd_raw(v: f64) -> String {
-    let rounded = (v * 100.0).round() / 100.0;
+    format!("{}", v.round() as i64)
-    format!("{rounded:.2}")
 }
 
 struct App {