111

flutter_monisuo/lib/ui/pages/trade/components/price_card.dart

@@ -117,8 +117,7 @@ class PriceCard extends StatelessWidget {
   String _fmt(double? v) {
     if (v == null) return '--';
     if (v >= 1000) return v.toStringAsFixed(2);
-    if (v >= 1) return v.toStringAsFixed(4);
-    return v.toStringAsFixed(6);
+    return v.toStringAsFixed(4);
   }
 
   String _fmtVol(double? v) {

flutter_monisuo/lib/ui/pages/trade/components/split_trade_form.dart

@@ -55,6 +55,15 @@ class SplitTradeForm extends StatefulWidget {
 class _SplitTradeFormState extends State<SplitTradeForm>
     with SingleTickerProviderStateMixin {
   late TabController _tabController;
+  double _currentPercent = 0.0;
+
+  String _fmtAvailable(String raw) {
+    final v = double.tryParse(raw);
+    if (v == null || v == 0) return '0';
+    if (v >= 1) return v.toStringAsFixed(2);
+    if (v >= 0.01) return v.toStringAsFixed(4);
+    return v.toStringAsFixed(6);
+  }
 
   @override
   void initState() {
@@ -256,11 +265,21 @@ class _SplitTradeFormState extends State<SplitTradeForm>
         ),
         const SizedBox(height: AppSpacing.xs),
 
-        // 可用余额
-        Text(
-          '可用: $available ${_isBuy ? 'USDT' : (widget.coin?.code ?? '')}',
-          style: AppTextStyles.bodySmall(context)
-              .copyWith(color: context.colors.onSurfaceVariant),
+        // 可用余额 + 手续费
+        Row(
+          mainAxisAlignment: MainAxisAlignment.spaceBetween,
+          children: [
+            Text(
+              '可用: ${_fmtAvailable(available)} ${_isBuy ? 'USDT' : (widget.coin?.code ?? '')}',
+              style: AppTextStyles.bodySmall(context)
+                  .copyWith(color: context.colors.onSurfaceVariant),
+            ),
+            Text(
+              '手续费: 0%',
+              style: AppTextStyles.bodySmall(context)
+                  .copyWith(color: context.colors.onSurfaceVariant),
+            ),
+          ],
         ),
         const SizedBox(height: AppSpacing.sm),
 
@@ -276,7 +295,29 @@ class _SplitTradeFormState extends State<SplitTradeForm>
             _pctBtn(context, '100%', 1.0, onFillPercent),
           ],
         ),
-        const SizedBox(height: AppSpacing.sm),
+        const SizedBox(height: 2),
+
+        // 滑块选择仓位
+        SliderTheme(
+          data: SliderThemeData(
+            trackHeight: 3,
+            thumbShape: const RoundSliderThumbShape(enabledThumbRadius: 6),
+            overlayShape: const RoundSliderOverlayShape(overlayRadius: 12),
+            activeTrackColor: accentColor,
+            inactiveTrackColor: context.colors.surfaceContainerHighest,
+            thumbColor: accentColor,
+          ),
+          child: Slider(
+            value: _currentPercent.clamp(0.0, 1.0),
+            onChanged: (v) {
+              setState(() => _currentPercent = v);
+              onFillPercent(v);
+            },
+            min: 0.0,
+            max: 1.0,
+          ),
+        ),
+        const SizedBox(height: AppSpacing.xs),
 
         // 提交按钮
         SizedBox(
@@ -296,7 +337,7 @@ class _SplitTradeFormState extends State<SplitTradeForm>
             child: FittedBox(
               fit: BoxFit.scaleDown,
               child: Text(
-                '${_isBuy ? '买入' : '卖出'} ${widget.coin?.code ?? ''}',
+                '${_isBuy ? '買入' : '賣出'} ${widget.coin?.code ?? ''}',
                 style: AppTextStyles.labelLarge(context)
                     .copyWith(color: Colors.white, fontWeight: FontWeight.w700),
               ),
@@ -308,20 +349,26 @@ class _SplitTradeFormState extends State<SplitTradeForm>
   }
 
   Widget _pctBtn(BuildContext context, String label, double pct, ValueChanged<double> onTap) {
+    final isActive = (_currentPercent - pct).abs() < 0.01;
     return Expanded(
       child: GestureDetector(
-        onTap: () => onTap(pct),
+        onTap: () {
+          setState(() => _currentPercent = pct);
+          onTap(pct);
+        },
         child: Container(
-          height: 28,
+          height: 26,
           decoration: BoxDecoration(
-            color: context.colors.surfaceContainerHighest.withValues(alpha: 0.4),
+            color: isActive
+                ? context.colors.primary.withValues(alpha: 0.15)
+                : context.colors.surfaceContainerHighest.withValues(alpha: 0.4),
             borderRadius: BorderRadius.circular(AppRadius.sm),
           ),
           child: Center(
             child: Text(label,
                 style: AppTextStyles.bodySmall(context).copyWith(
-                    color: context.colors.onSurfaceVariant,
-                    fontWeight: FontWeight.w500)),
+                    color: isActive ? context.colors.primary : context.colors.onSurfaceVariant,
+                    fontWeight: isActive ? FontWeight.w600 : FontWeight.w500)),
           ),
         ),
       ),