fix: fixed createFileService.native to save media files properly on Android (QM-1766)

Author: bang9

packages/uikit-react-native/src/platform/createFileService.native.ts

@@ -7,6 +7,7 @@ import type * as Permissions from 'react-native-permissions';
 import type { Permission } from 'react-native-permissions';
 
 import { getFileExtension, getFileType } from '@sendbird/uikit-utils';
+import { normalizeFileName } from '@sendbird/uikit-utils/src/shared/regex';
 
 import SBUError from '../libs/SBUError';
 import fileTypeGuard from '../utils/fileTypeGuard';
@@ -194,7 +195,11 @@ const createNativeFileService = ({
 
       if (Platform.OS === 'android') {
         const dirType = { 'file': 'downloads', 'audio': 'audio', 'image': 'images', 'video': 'video' } as const;
-        await fsModule.FileSystem.cpExternal(downloadPath, options.fileName, dirType[fileType]);
+        await fsModule.FileSystem.cpExternal(
+          downloadPath,
+          normalizeFileName(options.fileName, getFileExtension(options.fileUrl)) + '.mov',
+          dirType[fileType],
+        );
       }
       return downloadPath;
     }

packages/uikit-utils/src/shared/regex.ts

@@ -72,3 +72,14 @@ export function getFileExtension(filePath: string) {
   if (idx === -1) return '';
   return filePath.slice(idx - filePath.length).toLowerCase();
 }
+export function normalizeFileName(fileName: string, extension: string) {
+  if (fileName.indexOf(extension)) {
+    return fileName;
+  } else {
+    if (extension.indexOf('.') === 0) {
+      return `${fileName}${extension}`;
+    } else {
+      return `${fileName}.${extension}`;
+    }
+  }
+}