iPhone上的键盘覆盖textview

Question

I am newbie for iPhone application. Below is what I have...

When I enter Item name, I get proper screen with Done option. When I click Done, keyboard get hided.

Same happen for Time also.

Now when I click on description and type something, I get screen as below.

Now my problem is, I can't see UITextView and because of that I can't see what I am typing.

How can I show the UITextView so that I can see what I am typing.

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Update 1

Answer 1

First take these whole controls in UIScrollView and set as it is,

after just in UITextView delegate method textViewDidBeginEditing set the frame of view like bellow...

-(void)textViewDidBeginEditing:(UITextView *)textView
{
    [UIView beginAnimations:nil context:nil];
    [UIView setAnimationDuration:0.3];
    yourScrollView.frame = CGRectMake(yourScrollView.frame.origin.x, -160, yourScrollView.frame.size.width, yourScrollView.frame.size.height);
    [UIView commitAnimations];

}

and also set same like before after return like bellow...

-(BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text
{
    if ([text isEqualToString:@"\n"]) 
    {
        [textView resignFirstResponder];
        [UIView beginAnimations:nil context:NULL];
        [UIView setAnimationDuration:0.3];

        yourScrollView.frame = CGRectMake(yourScrollView.frame.origin.x, 0, yourScrollView.frame.size.width, yourScrollView.frame.size.height);
        [UIView commitAnimations];
        return NO;
    }
    return YES;
}

you can also set the frame of UIView instead of UIScrollView ..

Also first give the Delegate to UITextView and add this delegate in .h file

i hope this helpful to you...

Answer 2

set following code in viewDidLoad for key board hide/show notification

  [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(keyboardWasShown:)
                                                 name:UIKeyboardDidShowNotification object:nil];

    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(keyboardWillBeHidden:)
                                                 name:UIKeyboardWillHideNotification object:nil];

and set this method and change the frame of view in this code

- (void)keyboardWasShown:(NSNotification *)aNotification
{

}

- (void)keyboardWillBeHidden:(NSNotification *)aNotification
{

}

Answer 3

Put all the content in a UIScrollView and use the scrollRectToVisible:animated: to scroll to the correct TextField when it is active.

Also you have to resize the scrollview according to if the keyboard is shown or not, so you need to set up TextField delegates

Answer 4

使用UIScrollView在设计所有控件的背后和设置contentsize的它beginEditing的TextView或TextFieldShouldReturn秒（时间）文本框的。