Can't type any text into my QLineEdit in dialog showing by exec().

[mkdh]

There is a QLineEdit in my dialog "mydiaSaveSimple";

I show "mydiaSaveSimple" using exec().

But I can't type text or word into my QLineEdit in dialog when I show "mydiaSaveSimple" using exec() in my iOS!?

Does any one has the same problem with me?