iphone UITextView exception

The following code goes to exception for 3.1.3:

[textView select:self]

unrecognized selector sent to instance etc..

But the same code is working for 3.2.

I don't understand the error since this function is available starting from IPHONE_3_0 !!!

Thank开发者_StackOverflow社区s for help

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Using a private API, I can perform cut/copy/paste for 3.1.3

For example: select

[[textView webView] select:self];

It seems that the UIWebView child of text view is the first responder for these edit actions.

By the way, on iPad(3.2), the UITextView implements the informal protocol UIResponderStandardEditActions directly!