UITextView subview UIImageView hiding entered text and scrolling with texts iPhone?

Question

I have UITextView in my iPhone app. In the UITextView i have added UIImageView as subview . When the entered text reaches the final height the texts are scrolling to top . Instead the UIImageView (with image) also scrolling top . How can i handle to stop the image scroll and allow the text to scroll? Here is my code for your reference,

    messageTextView = [[UITextView alloc] initWithFrame:CGRectMake(35, 5, 210, 30)];
    messageTextView.delegate = self;
    messageTextView.backgroundColor = [UIColor clearColor];
    messageTextView.clipsToBounds = YES;  
    messageTextView.font = [UIFont fontWithName:@"Helvetica" size:14];
    messageTextView.autoresizingMask = UIViewAutoresizingFlexibleWidth;

    textViewImageView = [[UIImageView alloc]initWithFrame: CGRectMake(0, 0, 210, 30)];
    textViewImageView.image = [UIImage imageNamed: @"textbg.png"];
    textViewImageView.contentMode    = UIViewContentModeScaleToFill;
    textViewImageView.contentStretch = CGRectMake(0.5, 0.5, 0, 0);  
    [messageTextView addSubview: textViewImageView];

    [messageTextView sendSubviewToBack: textViewImageView];
    [messageTextView addSubview:textViewLabel];

Can anyone please help me to solve this? Thanks in advance. Looking forward your reply.

Answer 1

have you considered to position the imageView behind the textView? Or is there any reason that forbids such a layout?

something like that:

UITextView *messageTextView = [[UITextView alloc] initWithFrame:CGRectMake(35, 5, 210, 30)];
// ...
messageTextView.autoresizingMask = UIViewAutoresizingFlexibleWidth;
[self.view addSubview:messageTextView];

UIImageView *textViewImageView = [[UIImageView alloc] initWithFrame:CGRectMake(35, 5, 210, 30)];
// ...
textViewImageView.autoresizingMask = UIViewAutoresizingFlexibleWidth;
[self.view addSubview:textViewImageView];

[self.view sendSubviewToBack:textViewImageView];

Answer 2

Maybe this could help. Use the scrollview delegate to reposition your image when it reaches the bounds.

- (void)scrollViewDidScroll:(UIScrollView *)scrollView {
    if (scrollView.contentOffset.y >= scrollView.contentSize.height - scrollView.frame.size.height) {

        CGRect imageFrame = textViewImageView.frame;
        imageFrame.origin.y = scrollView.contentOffset.y - (scrollView.contentSize.height - scrollView.frame.size.height);
        textViewImageView.frame = imageFrame;

    }       
}

Answer 3

这应该工作：

[yourTxtView setBackgroundColor:[UIColor colorWithPatternImage:[UIImage imageNamed:@"your image.png"]]];