Addressables: PercentComplete did not started from 0 and suddenly reach 1

Questions & Answers
1

Hi everyone, I wonder why PercentComplete started from 0.5 and after some time after reaching aprox 0.75 it goes up to 1 directly ?

    void Start()
    {
       StartCoroutine(OnLoad(Addressables.DownloadDependenciesAsync("Prefabs")));

    }
    IEnumerator OnLoad(AsyncOperationHandle obj)
    {
        while (obj.IsDone == false)
        {
            yield return new WaitForSeconds(.1f);
            progressImg.fillAmount = obj.PercentComplete;
            percentCopmlete1.text = obj.PercentComplete * 100f + "%".ToString();
        }
        
    }
5

Solved by just changing “obj.PercentComplete” by “obj.GetDownloadStatus().Percent”

IEnumerator OnLoad(AsyncOperationHandle obj)
     {
         while (obj.IsDone == false)
         {
             yield return new WaitForSeconds(.1f);
             progressImg.fillAmount = obj.GetDownloadStatus().Percent;
             percentCopmlete1.text = obj.GetDownloadStatus().Percent * 100f + "%".ToString();
         }
         
     }
2

I have the same situation when loading bundles from server: it starts from 0.0, then gets stuck at 0.5 for almost all the time of a bundle being downloaded and in the end quickly jumps to 0.77, 0.95 and then to 1.0.

3

same here!

4

Has anyone solved this issue yet? Nearly a year later and it still seems to happen in the current Addressables version.

6

Still happening, Unity 2021.1.6, for me the file completes just fine if the complete size of the build folder is under 100 mb…

7

You can find some sort of “detailed info” in this link:
https://docs.unity3d.com/Packages/com.unity.addressables@1.18/manual/DownloadDependenciesAsync.html

AsyncOperationHandle.PercentComplete: reports the percentage of sub-operations that have finished. For example, if an operation uses six sub-operations to perform its task, the PercentComplete indicates the entire operation is 50% complete when three of those operations have finished (it doesn’t matter how much data each operation loads).

AsyncOperationHandle.GetDownloadStatus: returns a DownloadStatus struct that reports the percentage in terms of total download size. For example, if an operation has six sub-operations, but the first operation represented 50% of the total download size, then GetDownloadStatus indicates the operation is 50% complete when the first operation finishes.

Resuming, use AsyncOperationHandle.GetDownloadStatus().Percent to get the actual download progress (0 to 1).