I places a UIScrollView inside the main UIView of my viewcontroller.
Then I added some controls at the bottom of the view and a UIPageControl near the top.
When i scroll the view, the bottom controls scroll fine but the UIPageControl remains in place, so it ends up blocking the buttons and labels at the bottom.
How do I make the UIPageControl and its views scroll up or down with the rest?
Here is what it looks like
I got it to work by:
1) Putting all views/controls inside a containerView and declaring it as a property.
2) Adding this code:
-(void)viewDidLayoutSubviews{
[super viewDidLayoutSubviews];
self.scrollView.contentSize = self.containerView.bounds.size;
}
- (void)viewDidLoad{
[super viewDidLoad];
//added with containerview from g8productions
self.containerView = [[UIView alloc] initWithFrame:CGRectMake(36, 59, 900, 1200)];
self.scrollView.translatesAutoresizingMaskIntoConstraints = NO;
[self.scrollView addSubview:self.containerView];
[self.scrollView setContentSize:self.containerView.bounds.size];
}
Now it scrolls! :)
Related
I am new to xcode, but I have been searching around for solution, and I have tried many different methods, but none of it is working. I am trying to make UIButton flip to the reverse side by adding animation to it. This will occur when program loads up, so user can just sit back and watch a whole bunch of buttons flip over and over.
The problem that I am having is that the animation seems to take place before screen even loads because I can see a different view (to show that button is flipped), as soon as the program loads, but I cannot see the animation taking place.
What I have done:
I created a main view controller and inside the controller I have different subviews and within those subviews, I have UIButtons. I tried to add a delay to my animation, but it still does not fix it. I don't know if the problem could occur because I create subviews and buttons and then animate under - (void)viewDidLoad. I also tried to create another subview and put just one button into that subview, which will create 2 subviews and each having just one button and animate by flipping between the subviews, but I still get the same problem. The animation still happened before the screen even loads up, instead of during the run time of the program.
I am attaching part of the code that I did to this one.
CGRect button20subviewFrame = CGRectMake(242, 370, 70, 83);
UIView *button20subview = [[UIView alloc] initWithFrame:button20subviewFrame];
UIButton *button20 = [UIButton buttonWithType:UIButtonTypeCustom];
[button20 addTarget:self action:#selector(switchToDetailView:) forControlEvents:UIControlEventTouchDown];
[button20 setTitle:#"Button20" forState:UIControlStateNormal];
button20.frame = CGRectMake(0 , 0 , 70 , 83);
UIImage *button20Image = [UIImage imageNamed:#"t1.png"];
[button20 setImage:button20Image forState:UIControlStateNormal];
[button20subview addSubview:button20];
[self.view addSubview:button20subview];
UIButton *button21 = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[button21 addTarget:self action:#selector(switchToDetailView:) forControlEvents:UIControlEventTouchDown];
button21.frame = CGRectMake(0, 0, 70, 83);
UIImage *button21Image = [UIImage imageNamed:#"t2.png"];
[button21 setImage:button21Image forState:UIControlStateNormal];
//animation part
[UIView animateWithDuration:3 delay:2 options:UIViewAnimationTransitionFlipFromLeft animations:^{
[button20 removeFromSuperview];
[button20subview addSubview:button21];
}completion:^(BOOL finished){
}];
Any help is appreciated.
Thank you.
viewDidLoad is the problem. It gets called when the view is done loading, which is before it is put on screen. viewDidAppear should do what you're looking for.
In addition to this, you may want to call [button20 removeFromSuperview] in the animations completion handler to ensure that the front of the button isn't removed while the animation is still taking place.
E.x:
[UIView animateWithDuration:3 delay:2 options:UIViewAnimationTransitionFlipFromLeft animations:^{
[button20subview addSubview:button21];
}completion:^(BOOL finished){
if(finished){
[button20 removeFromSuperview];
}
}];
I am a newbie for MAC development, I have a simple Cocoa Application using NSViewController where I have a main view and 2 NSViewController and dynamically flipping them. I have added PDFView on NSViewController view to show pdf pages flipping at run time. but my problem when the views are added dynamically then on PDFView I can see the pdf page after resizing the window. I tried using [[pdfViewOutlet1 view] setNeedsDisplay:YES]; for both the views.
FirstView *FirstViewController = [[FirstView alloc] initWithNibName:kFirstView bundle:nil];
[FirstViewController setPdfDoc:pdfDoc];
[FirstViewController setPageCnt:pageCnt];
self.myCurrentViewController = FirstViewController;
[[_myCurrentViewController view] setNeedsDisplay:YES];
[transition setSubtype:kCATransitionFromLeft];
[[_myTargetView animator] addSubview: [_myCurrentViewController view]];
and in the awakeFromNib: method of first view I have:
if(pdfDoc==nil )
return;
[pdfViewOutlet1 setDisplayMode: kPDFDisplaySinglePageContinuous]; //kPDFDisplaySinglePage or kPDFDisplayTwoUp;
[pdfViewOutlet1 setDocument:pdfDoc];
NSRect myRect = { { 0,0 }, { 450, 200 } };
[pdfViewOutlet1 setFrame: myRect];
[pdfViewOutlet1 goToPage: [[pdfViewOutlet1 document] pageAtIndex: pageCnt]];
[pdfDoc release];
[[pdfViewOutlet1 view] setNeedsDisplay:YES];
How can I see the pdf pages without resizing the views using mouse?
the issue is solved, i was using setWantsLayer on my Parent view which was creating the issue.
(xCode 4.3.2, ARC, Storyboard) I have a Master/Detail project and the MasterViewController is a UITableViewController, as usual. It has a navigation bar at the top and a toolbar at the bottom. I've created a custom subview that I load programmatically in viewDidLoad.
It loads fine, and is on top just like I want, but when the user scrolls the tableview, the subview scrolls too. I need the subview to "stick" to the bottom.
Here is the code I used to add the subview:
CGRect totalFrame = CGRectMake(0, 314, 320, 58);
UIView *totalBG = [[UIView alloc] initWithFrame:totalFrame];
totalBG.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:#"totalBG.png"]];
[self.view addSubview:totalBG];
CGRect totalLabelFrame = CGRectMake(12, 12, 80, 40);
totalLabelBG = [[UILabel alloc] initWithFrame:totalLabelFrame];
totalLabelBG.backgroundColor = [UIColor clearColor];
totalLabelBG.text = #"Total:";
[totalLabelBG setFont:[UIFont boldSystemFontOfSize:22]];
totalLabelBG.userInteractionEnabled = NO;
totalLabelBG.textColor = [UIColor whiteColor];
totalLabelBG.shadowColor = [UIColor blackColor];
totalLabelBG.shadowOffset = CGSizeMake(0, 1);
[totalBG addSubview:totalLabelBG];
I tried setting userInteractionEnabled to NO in viewDidLoad and detecting a
touch, and setting the totalLabelBG.center property, and neither worked.
I've also read through a lot of threads on disabling scrolling for webviews, but found nothing relevant.
I found another SOF question with a response that may or may not work, but the user did not explain the answer. "The trick is to adjust the frame of the "non-scrollable" subview inside -layoutSubviews."
I achieved the desired result by adding the subview to the UINavigationController container like this:
[self.navigationController.view addSubview:totalBG];
Like in the answer above. Just add that particular subview to any subview outside on the UIScrollView instance. If its not suppose to scroll then it doesn't make sense to put it inside the scroll view to begin with. Instead make the scroll view only take up the height up to the top of the totals subview
Has anybody used a NSScrollView to control scrolling using the cocos2d-mac framework?
After much struggling I managed to make UIScrollView work with cocos2d-ios. Any pointers to using NSScrollView together with a NSOpenGLView would be appreciated.
I finally managed to get a NSScrollView working within my cocos2d-mac Xib.
The trick is that you have to programmatically overlay the OpenGLView over the NSScrollView main view (leaving room for the scroll bars) by first setting up a fake view as the scrollView's documentView, and then removing the openGLView from its parent view and adding it again (so the OpenGLView is drawn over the ScrollView). You can do it as follows:
appDelegate = [[NSApplication sharedApplication] delegate];
// Set up NSScrollView with dummy empty view as big as the layer
NSRect rect = NSMakeRect(0, 0, myLayer.width, myLayer.height);
NSView *view = [[NSView alloc] initWithFrame:rect];
appDelegate.scrollView.documentView = view;
[view release];
// Push OpenGLView back to front
[appDelegate.glView removeFromSuperview];
[appDelegate.splitLeftView addSubview:appDelegate.glView];
And then, you should use the scroll bars events to update the myLayer position accordingly.
Hey everyone, I have a iPhone App I am creating. It uses a uitableview and that goes to a detail view.
Now on the detail view I have a scroll view, and all the data (XML) comes into it fine, each time, no issues.
My UILabels in my scrollview do update with the correct data, but, they keep adding subviews on top of each other to keep adding label after label and it all looks mumbo jumbo.
I have tried everything to try and remove the subviews such as:
for(UIView *subview in [scrollView subviews]) {
[subview removeFromSuperview];
}
AND
[[scrollView subviews] makeObjectsPerformSelector:#selector(removeFromSuperview)];
So I am stumped, I got no idea what is happening. Any help? I have been searching Google for ages and agesm, but keep finding the same answers that don't work :(
Any direction to sites that might help that you know of will be greatly appreciated.
Thanks!
Here is what I have in my controller that loads all the scrollview and labels:
- (void)viewDidAppear:(BOOL)animated {
// Create the scroll view for this view
UIScrollView *scrollView = [[UIScrollView alloc] initWithFrame:self.view.frame];
scrollView.contentSize = CGSizeMake(320, 270);
[scrollView setFrame:CGRectMake(0, 198, 320, 170)];
// Do the labels for the text
UILabel *dates = [[UILabel alloc] initWithFrame:scrollView.bounds];
dates.textColor = [UIColor whiteColor];
dates.font = [UIFont boldSystemFontOfSize:12];
dates.text = round_date;
dates.tag = 1;
[dates setBackgroundColor:[UIColor clearColor]];
[dates setFrame:CGRectMake(10, 10, 280, 22)];
[scrollView addSubview:dates];
[dates release];
// Add the content to the main scrollview
[self.view addSubview:scrollView];
[scrollView release];
}
Ok, the reason for this is that viewDidAppear will get called every time you present the view.
If you do this is
-(void) viewDidLoad;
instead.
To make sure you can access them later you might want to keep a reference to them in your UIViewController
-(void) viewDidLoad {
scrollView = [[UIScrollView alloc] initWithFrame];
[self.view addSubview:scrollView];
}
and define it in your header file with:
UIScrollView *scrollView;