Download bug Rollup "Update" for file upload of Android and ASP.

Problems encountered:

1.java.io.ioexception:open failed:einval (Invalid argument) exception, the SD card in the emulator creates folder and file times wrong

The cause of the error could be: (1) The file name contains non-conforming characters, such as ":", "? "or spaces, and so on. (2) You need to create a folder directory before creating the file, you cannot create the file directly.

2. Android.os.NetworkOnMainThreadException exception, after requesting data from the server, write file times wrong

Error reason: In the main thread to perform the operation of HTTP access, the simplest solution is to use the Android multi-threaded operation, all access to the HTTP operation in the new thread new thread (new Runnable () {public void run () {}). Start ();} , the action to update the UI is placed in handle.

3.