![]() Unfortunately, it results in the same exact memory leak. This AsyncTask leaks the enclosing Fragment (or Activity) object forever: private final AtomicInteger counter = new void onStart() ") To answer this question, let’s discuss the relationship between AsyncTask and memory leaks. How come they don’t experience these problems? Even some classes inside AOSP itself use AsyncTask. However, there are many high-quality applications out there which use AsyncTask and work flawlessly. So, Google basically states that the most common use case for AsyncTask automatically results in very serious problems. That said, the more interesting part of this paragraph is: “that would cause Context leaks, missed callbacks, or crashes on configuration changes”. However, in my opinion, when Google deprecates API that so many developers use, it would be appropriate to invest more effort into the deprecation message to prevent further confusion. It was intended to offload long-running operations from UI thread to background threads, and then deliver the results of these operations back to UI thread. While that’s the official statement by Google, there are several inaccuracies there which are worth pointing out.įist of all, AsyncTask has never been intended to “enable proper and easy use of the UI thread”. It also has inconsistent behavior on different versions of the platform, swallows exceptions from doInBackground, and does not provide much utility over using Executors directly. However, the most common use case was for integrating into UI, and that would cause Context leaks, missed callbacks, or crashes on configuration changes. The newly added paragraph of Javadoc states:ĪsyncTask was intended to enable proper and easy use of the UI thread. ![]() ![]() The official deprecation of AsyncTask, as well as the motivation for that decision, were introduced with this commit. Official Reason for Deprecation of AsyncTask In addition, I’ll share my thoughts on the future of concurrency APIs in Android and suggest what you should do if you’ve got AsyncTasks spread all over your codebase. In this post, I’ll review the official statement motivating AsyncTask’s deprecation, explain why it doesn’t make sense, and then share a list of the real problems with this framework that really justify its retirement. However, the era of AsyncTask ended because, starting with Android 11, AsyncTask is deprecated.
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