取消第一响应

一,UITextView取消第一响应

    UITextView *editTextView = [[UITextView alloc] init];

    self.editTextView = editTextView;

    editTextView.returnKeyType = UIReturnKeyDone;

    [imageView addSubview:editTextView];

    editTextView.delegate = self;

#pragma mark - UITextView Delegate Methods 

-(BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text {

    if ([text isEqualToString:@" "]) {

    [textView resignFirstResponder];

        return NO;

    }

    return YES;

}

二,UITextField取消第一响应

field.returnKeyType = UIReturnKeyDone;

[field addTarget:self action:@selector(onKeyBoardDown:) forControlEvents:UIControlEventEditingDidEndOnExit];// 取消第一响应

-(void)onKeyBoardDown:(id)sender{

    [sender resignFirstResponder];

}

或者

- (void)textViewDidBeginEditing:(UITextView *)textView {
   UIBarButtonItem *done =    [[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(leaveEditMode)] autorelease];
   self.navigationItem.rightBarButtonItem = done;    
}

- (void)textViewDidEndEditing:(UITextView *)textView {
    self.navigationItem.rightBarButtonItem = nil;
}

- (void)leaveEditMode {
    [self.textView resignFirstResponder];
}

或者

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event

{

    [self.view endEditing:YES];

}