//定义两个文本框 
UITextField *textName; 
UITextField *textSummary; 
   
//点击return 按钮 去掉 
-(BOOL)textFieldShouldReturn:(UITextField *)textField 
{ 
     [textField resignFirstResponder]; 
     return YES; 
} 
//点击屏幕空白处去掉键盘 
- ( void )touchesBegan:(NSSet *)touches withEvent:(UIEvent *) event 
{ 
    //[self.textName resignFirstResponder]; 
    //[self.textSummary resignFirstResponder]; 
    [self.view endEditing:YES];
}