Iphone hidden in the realization of the virtual keyboard

Original problem comes from CSDN Q channels, additional solutions see http://ask.csdn.net/questions/ 43

Original problem:
How to hide the keyboard in iphone?
There are two uiTextFields, but pressed the return key after the keyboard can not be hidden.
I do not know how to do

View or ViewController in your beginning to set UITextFieldDelegate protocol:

 @ interface YourViewController: UIViewController  

Then in the. M file, add UITextFieldDelegate Protocol Method:

 - (BOOL) textFieldShouldReturn: (UITextField *) textField {[textField resignFirstResponder]; return YES;} 

Finally, the initialization. M files in the textfield after,

 yourTextField = [[UITextField alloc] initWithFrame: yourFrame]; 

The next line is very important

 yourTextField.delegate = self; / / viewcontroller or view associated with the textField 

Reply:
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Reply:
[YourTextField resignFirstResponder] try