feat: 添加食物编辑功能，支持修改食物名称、重量和卡路里

app/food/analysis-result.tsx

@@ -15,9 +15,11 @@ import {
   BackHandler,
   Image,
   Modal,
+  Pressable,
   ScrollView,
   StyleSheet,
   Text,
+  TextInput,
   TouchableOpacity,
   View
 } from 'react-native';
@@ -84,6 +86,8 @@ export default function FoodAnalysisResultScreen() {
   const [isRecording, setIsRecording] = useState(false);
   const [showImagePreview, setShowImagePreview] = useState(false);
   const [animationTrigger, setAnimationTrigger] = useState(0);
+  const [editingFood, setEditingFood] = useState<string | null>(null);
+  const [editFormData, setEditFormData] = useState({ name: '', amount: '', calories: '' });
   const { imageUri, recognitionId, hideRecordBar } = params;
 
   // 判断是否隐藏记录栏（默认显示）
@@ -199,6 +203,39 @@ export default function FoodAnalysisResultScreen() {
     setFoodItems(prev => prev.filter(item => item.id !== itemId));
   };
 
+  // 打开编辑弹窗
+  const handleEditFood = (item: typeof mockFoodItems[0]) => {
+    setEditFormData({
+      name: item.name,
+      amount: item.amount.toString(),
+      calories: item.calories.toString(),
+    });
+    setEditingFood(item.id);
+  };
+
+  // 保存编辑
+  const handleSaveEdit = () => {
+    if (!editingFood) return;
+
+    const amount = parseFloat(editFormData.amount) || 0;
+    const calories = parseFloat(editFormData.calories) || 0;
+
+    setFoodItems(prev => prev.map(item =>
+      item.id === editingFood
+        ? { ...item, name: editFormData.name, amount, calories }
+        : item
+    ));
+
+    setEditingFood(null);
+    setEditFormData({ name: '', amount: '', calories: '' });
+  };
+
+  // 关闭编辑弹窗
+  const handleCloseEdit = () => {
+    setEditingFood(null);
+    setEditFormData({ name: '', amount: '', calories: '' });
+  };
+
   // 获取随机食物emoji
   function getRandomFoodEmoji(): string {
     const foodEmojis = ['🍎', '🍌', '🍞', '🥛', '🥗', '🍗', '🍖', '🥕', '🥦', '🥬', '🍅', '🥒', '🍇', '🥝', '🍓'];
@@ -367,7 +404,10 @@ export default function FoodAnalysisResultScreen() {
 
                 <View style={styles.foodIntakeCalories}>
                   <Text style={styles.foodIntakeCaloriesValue}>{item.calories}千卡</Text>
-                  {shouldHideRecordBar ? null : <TouchableOpacity style={styles.editButton}>
+                  {shouldHideRecordBar ? null : <TouchableOpacity
+                    style={styles.editButton}
+                    onPress={() => handleEditFood(item)}
+                  >
                     <Ionicons name="create-outline" size={16} color="#666" />
                   </TouchableOpacity>}
                   {shouldHideRecordBar ? null : <TouchableOpacity
@@ -508,10 +548,109 @@ export default function FoodAnalysisResultScreen() {
           </View>
         )}
       />
+
+      {/* 编辑食物弹窗 */}
+      <FoodEditModal
+        visible={!!editingFood}
+        formData={editFormData}
+        onFormDataChange={setEditFormData}
+        onClose={handleCloseEdit}
+        onSave={handleSaveEdit}
+      />
     </View>
   );
 }
 
+// 编辑食物弹窗组件
+function FoodEditModal({
+  visible,
+  formData,
+  onFormDataChange,
+  onClose,
+  onSave
+}: {
+  visible: boolean;
+  formData: { name: string; amount: string; calories: string };
+  onFormDataChange: (data: { name: string; amount: string; calories: string }) => void;
+  onClose: () => void;
+  onSave: () => void;
+}) {
+  const handleFieldChange = (field: string, value: string) => {
+    onFormDataChange({ ...formData, [field]: value });
+  };
+
+  return (
+    <Modal
+      visible={visible}
+      transparent
+      animationType="fade"
+      onRequestClose={onClose}
+    >
+      <Pressable style={styles.modalBackdrop} onPress={onClose} />
+      <View style={styles.editModalSheet}>
+        <View style={styles.modalHandle} />
+
+        <Text style={styles.modalTitle}>编辑食物信息</Text>
+
+        {/* 食物名称 */}
+        <View style={styles.editFieldContainer}>
+          <Text style={styles.editFieldLabel}>食物名称</Text>
+          <TextInput
+            style={styles.editInput}
+            placeholder="输入食物名称"
+            placeholderTextColor="#999"
+            value={formData.name}
+            onChangeText={(value) => handleFieldChange('name', value)}
+            autoFocus
+          />
+        </View>
+
+        {/* 重量/数量 */}
+        <View style={styles.editFieldContainer}>
+          <Text style={styles.editFieldLabel}>重量 (克)</Text>
+          <TextInput
+            style={styles.editInput}
+            placeholder="输入重量"
+            placeholderTextColor="#999"
+            value={formData.amount}
+            onChangeText={(value) => handleFieldChange('amount', value)}
+            keyboardType="numeric"
+          />
+        </View>
+
+        {/* 卡路里 */}
+        <View style={styles.editFieldContainer}>
+          <Text style={styles.editFieldLabel}>卡路里 (千卡)</Text>
+          <TextInput
+            style={styles.editInput}
+            placeholder="输入卡路里"
+            placeholderTextColor="#999"
+            value={formData.calories}
+            onChangeText={(value) => handleFieldChange('calories', value)}
+            keyboardType="numeric"
+          />
+        </View>
+
+        {/* 按钮区域 */}
+        <View style={styles.modalButtons}>
+          <TouchableOpacity
+            onPress={onClose}
+            style={styles.modalCancelBtn}
+          >
+            <Text style={styles.modalCancelText}>取消</Text>
+          </TouchableOpacity>
+          <TouchableOpacity
+            onPress={onSave}
+            style={[styles.modalSaveBtn, { backgroundColor: Colors.light.primary }]}
+          >
+            <Text style={[styles.modalSaveText, { color: Colors.light.onPrimary }]}>保存</Text>
+          </TouchableOpacity>
+        </View>
+      </View>
+    </Modal>
+  );
+}
+
 // 营养圆环组件
 function NutritionRing({
   label,
@@ -1039,4 +1178,84 @@ const styles = StyleSheet.create({
     fontSize: 16,
     fontWeight: '500',
   },
+  modalBackdrop: {
+    ...StyleSheet.absoluteFillObject,
+    backgroundColor: 'rgba(0,0,0,0.4)',
+  },
+  // 编辑弹窗样式
+  editModalSheet: {
+    position: 'absolute',
+    left: 0,
+    right: 0,
+    bottom: 0,
+    backgroundColor: '#FFFFFF',
+    borderTopLeftRadius: 20,
+    borderTopRightRadius: 20,
+    paddingHorizontal: 20,
+    paddingBottom: 40,
+    paddingTop: 20,
+  },
+  modalHandle: {
+    width: 36,
+    height: 4,
+    backgroundColor: '#E0E0E0',
+    borderRadius: 2,
+    alignSelf: 'center',
+    marginBottom: 20,
+  },
+  modalTitle: {
+    fontSize: 20,
+    fontWeight: '600',
+    color: '#333333',
+    marginBottom: 24,
+    textAlign: 'center',
+  },
+  editFieldContainer: {
+    marginBottom: 20,
+  },
+  editFieldLabel: {
+    fontSize: 16,
+    fontWeight: '500',
+    color: '#333333',
+    marginBottom: 8,
+  },
+  editInput: {
+    height: 50,
+    borderWidth: 1,
+    borderColor: '#E0E0E0',
+    borderRadius: 12,
+    paddingHorizontal: 16,
+    fontSize: 16,
+    backgroundColor: '#FFFFFF',
+    color: '#333333',
+  },
+  modalButtons: {
+    flexDirection: 'row',
+    gap: 12,
+    marginTop: 8,
+  },
+  modalCancelBtn: {
+    flex: 1,
+    height: 50,
+    backgroundColor: '#F0F0F0',
+    borderRadius: 12,
+    alignItems: 'center',
+    justifyContent: 'center',
+  },
+  modalCancelText: {
+    fontSize: 16,
+    fontWeight: '600',
+    color: '#666666',
+  },
+  modalSaveBtn: {
+    flex: 1,
+    height: 50,
+    borderRadius: 12,
+    alignItems: 'center',
+    justifyContent: 'center',
+  },
+  modalSaveText: {
+    fontSize: 16,
+    fontWeight: '600',
+  },
 });