File Delete no longer works - Android

Lloyd Sheen 1,476

All of a sudden the File.Delete method no longer works on Android.

            File.Delete(theFileName);
            fileExists = ApiGeneralRoutines.doesFileExist(theFileName);

Using the above code the File.Delete executes and when I check to see if the file still exists it does.

Confused!

Yonglun Liu (Shanghai Wicresoft Co,.Ltd.) 39,391 Reputation points Microsoft Vendor

2022-03-04T05:09:12.243+00:00
Does your File come from System.IO or Java.IO and your Android target framework is Android 10 or later?

I used the System.IO.File, Android API 29 and 30.

If you did not close the FileStream, this problem was caused by GC.

You can try calling the following code before File.Delete(theFileName);

GC.Collect();
GC.WaitForPendingFinalizers();

If it works, the reason is that the garbage collector will call the finalizer ~FileStream() and its own Dispose() method, which in turn releases the file handle.

You can refer to the following links:

Source code.

File Handling in Xamarin.Forms
Yonglun Liu (Shanghai Wicresoft Co,.Ltd.) 39,391 Reputation points Microsoft Vendor

2022-03-08T06:08:58.497+00:00

May I know if you have got any chance to check my answer? I am glad to help if you have any other questions.
Yossi Nadivi 0 Reputation points

2023-07-26T12:51:40.4933333+00:00

Yes, I did. I used this capability to transfer large files from my Android to the desktop PC. Everything work fine. It looks like somethig was changed in the Notifications & Actions. I don't know what.

1 answer