How to make UIScrollView stop immediately? - iphone

I just want to scroll only one page then to another.
I set m_pScrollView.pagingEnabled = YES and m_pScrollView.bounces = NO but when I scroll to the edge of the page it goes out of the page range and then back, likes an inertia effect.
I just want it scoll only one page not more. Can anyone help me?
- (void)viewDidLoad {
[super viewDidLoad];
m_pScrollView = [[UIScrollView alloc]initWithFrame:CGRectMake(0, 0, 768, 1024)];
m_pScrollView.delegate = self;
m_pScrollView.contentSize = CGSizeMake(768 * 3, 1024);
m_pScrollView.pagingEnabled = YES;
m_pScrollView.bounces = NO;
m_pScrollView.alwaysBounceHorizontal = NO;
m_pScrollView.alwaysBounceVertical = NO;
Myview *myview = [[Myview alloc]initWithFrame:CGRectMake(0, 0, 768, 1024)];
myview.backgroundColor = [UIColor redColor];
Myview *myview2 = [[Myview alloc]initWithFrame:CGRectMake(768, 0, 768, 1024)];
myview2.backgroundColor = [UIColor blueColor];
Myview *myview3 = [[Myview alloc]initWithFrame:CGRectMake(768 * 2, 0, 768, 1024)];
myview3.backgroundColor = [UIColor grayColor];
[m_pScrollView addSubview:myview];
[m_pScrollView addSubview:myview2];
[m_pScrollView addSubview:myview3];
[self.view addSubview:m_pScrollView];
}

You have to set the content size like this
m_pScrollView.contentSize = CGSizeMake(x,y);
For more about this Create UIScrollview programmatically

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About IOS UIScrollView Sliding automatic will bounce back

My app's UIScrollView Sliding automatic will bounce back,what can i do?
I do not want!
my code below:
- (void)initScrollView {
// a page is the width of the scroll view
sv = [[UIScrollView alloc]initWithFrame:CGRectMake(0, 96, 320, 300)];
sv.contentSize = CGSizeMake(sv.frame.size.width * 3, sv.frame.size.height* 2);
sv.pagingEnabled = YES;
sv.clipsToBounds = YES;
sv.showsHorizontalScrollIndicator = NO;
sv.showsVerticalScrollIndicator = YES;
sv.scrollsToTop = NO;
sv.directionalLockEnabled = YES;
sv.delegate = self;
[self.view addSubview:sv];
currentPage = 0;
pageControl.numberOfPages = 3;
pageControl.currentPage = 0;
pageControl.backgroundColor = [UIColor clearColor];
[self createAllEmptyPagesForScrollView];
}
- (void)createAllEmptyPagesForScrollView {
tapView1 = [[UIView alloc]init];
tapView1.backgroundColor = [UIColor clearColor];
tapView1.frame = CGRectMake(320*0, 0, 320, sv.frame.size.height);
tapView2 = [[UIView alloc]init];
tapView2.backgroundColor = [UIColor clearColor];
tapView2.frame = CGRectMake(320*1, 0, 320, sv.frame.size.height);
tapView3 = [[UIView alloc]init];
tapView3.backgroundColor = [UIColor clearColor];
tapView3.frame = CGRectMake(320*2, 0, 320, sv.frame.size.height);
[sv addSubview:tapView1];
[sv addSubview:tapView2];
[sv addSubview:tapView3];
}
i konw why I slide up automatically bounce back,my code have problem!Not bove code!thanks everyone!

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

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.
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];
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;
}
}
This should work:
[yourTxtView setBackgroundColor:[UIColor colorWithPatternImage:[UIImage imageNamed:#"your image.png"]]];

Add 10 different UIImages in UIScrollView

I am trying to add various UIImages under UIImageView and allow them to scroll with UIScrollView. I am not sure how to add various images under UIImageView and let them scroll.
Below is my code which adds an image on UIImageView and make it scrollable.
- (void)viewDidLoad {
[super viewDidLoad];
UIImage *image = [UIImage imageNamed:#"ae.jpg"];
imageView = [[UIImageView alloc]initWithImage:image];
imageView.frame = [[UIScreen mainScreen] bounds];
imageView.contentMode = (UIViewContentModeScaleAspectFit);
imageView.autoresizingMask = ( UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight);
imageView.backgroundColor = [UIColor clearColor];
UIScrollView* scrollView = [[UIScrollView alloc] initWithFrame:[[UIScreen mainScreen] applicationFrame]];
scrollView.contentMode = (UIViewContentModeScaleAspectFit);
scrollView.contentSize = CGSizeMake(image.size.width,960);
scrollView.pagingEnabled = NO;
scrollView.showsVerticalScrollIndicator = NO;
scrollView.showsHorizontalScrollIndicator = NO;
scrollView.alwaysBounceVertical = NO;
scrollView.alwaysBounceHorizontal = NO;
scrollView.autoresizingMask = ( UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight);
scrollView.maximumZoomScale = 2.5;
scrollView.minimumZoomScale = 1;
scrollView.clipsToBounds = YES;
[scrollView addSubview:imageView];
[image release];
[imageView release];
[self.view addSubview:scrollView];
}
The idea is basically simple. Let's assume you want to place 3 images in UIScrollView.
Each of images is 300x300. In this case you'll have scroll view with frame:
scrollView.contentSize = CGSizeMake(image.size.width,900);
For every image you must have it's UIImageView with proper frame:
imgView1 = [[UIImageView alloc] initWithFrame:CGRectMake(xOrigin, 0, 300, 300)];
imgView2 = [[UIImageView alloc] initWithFrame:CGRectMake(xOrigin, 300, 300, 300)];
imgView3 = [[UIImageView alloc] initWithFrame:CGRectMake(xOrigin, 600, 300, 300)];
imgView1.image = [UIImage imageNamed:#"ProperName.png"];
...
(pay attention to the yOrigin (2nd value in CGRectMake))
and then as you did:
[scrollView addSubview:imgView1];
[scrollView addSubview:imgView2];
[scrollView addSubview:imgView3];
[imgView1 release];
[imgView2 release];
[imgView3 release];
Of course, it's a brief code, you'll optimize it ;)

iPhone SDK: UIScrollView does not scroll

I just can't get my scroll view to actually scroll.. Everything displays fine except it just won't scroll..... Here's my code:
- (void)viewDidLoad {
[super viewDidLoad];
UIScrollView *scrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, 320, 600)];
scrollView.contentSize = CGSizeMake(320, 600);
scrollView.scrollEnabled = YES;
scrollView.clipsToBounds = YES;
[self.view addSubview:scrollView];
planView = [[WorkoutPlanView alloc] initWithImage:[UIImage imageNamed:#"WorkoutTable.png"]];
planView2 = [[WorkoutPlanView alloc] initWithImage:[UIImage imageNamed:#"WorkoutTable.png"]];
planView2.frame = CGRectMake(0, 164, 320, 165);
planView3 = [[WorkoutPlanView alloc] initWithImage:[UIImage imageNamed:#"WorkoutTable.png"]];
planView3.frame = CGRectMake(0, 328, 320, 165);
planView4 = [[WorkoutPlanView alloc] initWithImage:[UIImage imageNamed:#"WorkoutTable.png"]];
planView4.frame = CGRectMake(0, 505, 320, 165);
[scrollView addSubview:planView];
[scrollView addSubview:planView2];
[scrollView addSubview:planView3];
[scrollView addSubview:planView4];
}
How do I fix this problem?
The contentSize must be larger than the scrollview's frame for there to be anything to scroll. :)
In this case, they're both (320, 600) so change your scrollView's init to
UIScrollView *scrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, 320, 480)];
your scrollview frame should be smaller than contentSize,so only you can make scrollview scrollable.

UIScrollView: Scrolling doesn't work

I'd like to scroll my content in a UIScrollView. But I think I a made a mistake.
// setup view
CGRect appFrame = [UIScreen mainScreen].applicationFrame;
CGRect frame = CGRectMake(0, 0, appFrame.size.width, appFrame.size.height);
self.view = [[[UIView alloc] initWithFrame:frame] autorelease];
// setup wrapper
UIScrollView *wrapper = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, appFrame.size.width, appFrame.size.height + 320)];
wrapper.backgroundColor = [UIColor redColor];
wrapper.scrollEnabled = YES;
[self.view addSubview:wrapper];
// title (simple version here)
title.text = "Hello World";
[wrapper addSubview:title];
Instead of setting large frame you must set UIScrollView's content size:
UIScrollView *wrapper = [[UIScrollView alloc] initWithFrame:
CGRectMake(0, 0, appFrame.size.width, appFrame.size.height)];
wrapper.contentSize =CGSizeMake(appFrame.size.width, appFrame.size.height + 320);