fix: error

components/template-run/result-display.tsx

@@ -9,11 +9,11 @@ import {
 } from 'react-native';
 import { ThemedView } from '@/components/themed-view';
 import { ThemedText } from '@/components/themed-text';
-import { TemplateGeneration, GenerateType } from '@/lib/types/template-run';
+import { TemplateGeneration } from '@/lib/types/template-run';
 import { Image } from 'expo-image';
 import { VideoPlayer } from '@/components/video/video-player';
 import { useState } from 'react';
-import * as FileSystem from 'expo-file-system';
+import { cacheDirectory, documentDirectory, downloadAsync } from 'expo-file-system';
 import * as MediaLibrary from 'expo-media-library';
 
 interface ResultDisplayProps {
@@ -102,9 +102,14 @@ export function ResultDisplay({
       }
 
       // 下载文件
-      const downloadResult = await FileSystem.downloadAsync(
+      const targetDirectory = documentDirectory ?? cacheDirectory;
+      if (!targetDirectory) {
+        throw new Error('无法获取可写入的目录');
+      }
+
+      const downloadResult = await downloadAsync(
         url,
-        FileSystem.documentDirectory + `generated_${Date.now()}_${index}.${getFileExtension(url)}`
+        `${targetDirectory}generated_${Date.now()}_${index}.${getFileExtension(url)}`
       );
 
       // 保存到媒体库
@@ -218,9 +223,7 @@ export function ResultDisplay({
     return (
       <View key={index} style={styles.textContainer}>
         <ThemedView style={styles.textBox}>
-          <ThemedText style={styles.textContent}>
-            {url} // 这里假设URL包含文本内容，实际可能需要额外处理
-          </ThemedText>
+          <ThemedText style={styles.textContent}>{url}</ThemedText>
         </ThemedView>
 
         <View style={styles.textActions}>
@@ -378,7 +381,7 @@ const styles = StyleSheet.create({
     borderRadius: 12,
     backgroundColor: '#f0f0f0',
   },
-    mediaActions: {
+  mediaActions: {
     flexDirection: 'row',
     gap: 12,
     marginTop: 12,
@@ -446,4 +449,4 @@ const styles = StyleSheet.create({
     fontWeight: '600',
     color: '#4ECDC4',
   },
-});
+});