Skip to content

Add getFileIfCached method to CacheManager #14

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Closed
perlatus wants to merge 1 commit into from
Closed

Add getFileIfCached method to CacheManager #14

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
20 changes: 20 additions & 0 deletions lib/flutter_cache_manager.dart
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -183,6 +183,26 @@ class CacheManager {
}
}

/// Get the file from the cache if previously loaded from [url]. If the file
/// is not cached, Future returns null.
Future<File> getFileIfCached(String url) async {
var cacheObject = _cacheData[url];
if (cacheObject == null) {
return null;
}

return await synchronized(cacheObject.lock, () async {
cacheObject.touch();
var filePath = await cacheObject.getFilePath();
if (filePath == null) {
return null;
}

File cachedFile = new File(filePath);
return cachedFile.existsSync() ? cachedFile : null;
});
}

///Get the file from the cache or online. Depending on availability and age
Future<File> getFile(String url, {Map<String, String> headers}) async {
String log = "[Flutter Cache Manager] Loading $url";
Expand Down