Try to presentBufferSheetWithText from a modal view controller will fail

[mave99a]

Try to presentBufferSheetWithText from a modal view controller will fail. The buffer's sheet is displayed under the current view controller, so it won't allow user do anything with it.

Can you please allow pass in the presenter view controller or view? There is

• (void)setPresentingView:(id)view;

However once I call it, it will hang in this call.

Present through a UIActivityViewController works well, however that will let the user have another additional select from several activities. This is not what I want.