I am having multiple Imageview's where I am dividing the 360 degrees/no.of.Imageviews to get an angle to rotate each Imageview.
#define angle ((2*M_PI)/13.0)
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view from its nib.
mainView.backgroundColor = [UIColor blackColor];
for(currentIndex = 0; currentIndex < 13; currentIndex++)
{
UIImageView *imageView = [self getCardsWithAngle:(currentIndex*angle)];
[mainView addSubview:imageView];
}
}
-(UIImageView *)getCardsWithAngle:(float)aAngle
{
CGRect frame = CGRectMake(mainView.center.x+50, mainView.center.y-100, 250,200);
CGPoint anchorPoint = CGPointMake(0.5,1.5);
imgView = [[UIImageView alloc]initWithImage:[UIImage imageNamed:#"card_1.png"]];
imgView.frame = frame;
imgView.backgroundColor = [UIColor clearColor];
if(aAngle == 0.0)
{
imgView.layer.anchorPoint = anchorPoint;
return imgView;
}
imgView.layer.anchorPoint = anchorPoint;
CABasicAnimation* rotationAnimation;
rotationAnimation = [CABasicAnimation animationWithKeyPath:#"transform.rotation.z"];
rotationAnimation.toValue = [NSNumber numberWithFloat:aAngle];
rotationAnimation.duration = 3.0;
rotationAnimation.removedOnCompletion = NO;
rotationAnimation.fillMode = kCAFillModeForwards;
rotationAnimation.delegate = self;
[rotationAnimation setValue:[NSNumber numberWithFloat:aAngle] forKey:#"finalAngle"];
[imgView.layer addAnimation:rotationAnimation forKey:#"rotationAnimation"];
return imgView;
}
Here My problem is all the imageviews start animating at a time. I want to rotate the image views to an angle one after another.
Any ideas will be appreciated,
Thanks all
Related
I would like to drag one UIView, and have it move the position of other views attached to it as if they were all attached via string. I added two attached behaviours, one between my views and one between view which allowed to dragging and anchor point. And it works. But my problem is that my views continue to move even after gesture ended. My current result:
What do i do wrong?
Here is my code:
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
self.views = [[NSMutableArray alloc] init];
self.v2 = [[UIView alloc] initWithFrame:CGRectMake(50, 450, 200, 200)];
self.v2.backgroundColor = [UIColor colorWithRed:34.0f/255.0f green:167.0f/255.0f blue:240.0f/255.0f alpha:1.0];
[self.view addSubview:self.v2];
self.v1 = [[UIView alloc] initWithFrame:CGRectMake(150, 450, 200, 200)];
self.v1.backgroundColor = [UIColor colorWithRed:210.0f/255.0f green:82.0f/255.0f blue:127.0f/255.0f alpha:1.0];
[self.view addSubview:self.v1];
self.animator = [[UIDynamicAnimator alloc] initWithReferenceView:self.view];
self.gravity = [[UIGravityBehavior alloc]initWithItems:#[self.v1, self.v2]];
self.gravity.gravityDirection = CGVectorMake(0.0, 0.0);
[_animator addBehavior:_gravity];
_collision = [[UICollisionBehavior alloc]initWithItems:#[self.v1]];
_collision.collisionDelegate = self;
_collision.translatesReferenceBoundsIntoBoundary = YES;
[_animator addBehavior:_collision];
UIDynamicItemBehavior *itemBehaviour = [[UIDynamicItemBehavior alloc] initWithItems:#[self.v1]];
itemBehaviour.elasticity = 0.6;
itemBehaviour.allowsRotation = NO;
[_animator addBehavior:itemBehaviour];
UIPanGestureRecognizer *gesture = [[UIPanGestureRecognizer alloc] initWithTarget:self action:#selector(handlePan:)];
[self.v1 addGestureRecognizer:gesture];
UIAttachmentBehavior *attach = [[UIAttachmentBehavior alloc] initWithItem:self.v2 attachedToItem:self.v1];
attach.damping = 0.50f;
attach.length = 150.0f;
attach.frequency = 1.9;
[_animator addBehavior:attach];
}
-(void)handlePan:(UIPanGestureRecognizer *)gesture
{
CGPoint touchPoint = [gesture locationInView:self.view];
static float y ;
if (gesture.state == UIGestureRecognizerStateBegan) {
self.attachmentBehavior = [[UIAttachmentBehavior alloc] initWithItem:self.v1 attachedToAnchor:touchPoint];
self.attachmentBehavior.damping = 0.50f;
self.attachmentBehavior.frequency = 1.9;
[_animator addBehavior:self.attachmentBehavior];
y = self.v1.center.y;
} else if (gesture.state == UIGestureRecognizerStateChanged ) {
CGPoint center = self.v1.center;
center.x = touchPoint.x;
center.y = y;
self.attachmentBehavior.anchorPoint = center;
} else if (gesture.state == UIGestureRecognizerStateEnded) {
[self.animator removeBehavior:self.attachmentBehavior];
}
}
I am making an application where I have to show 3 images in a single screen, and when User touch one image then that Image should be shown by Animating and resizing.
So for 1st Step I did Masking of 3 images with 3 different Transparent Mask Image from
How to Mask an UIImageView
And my method is like below
- (UIImageView*) maskedImage:(UIImage *)image withMasked:(UIImage *)maskImage {
UIImageView *imageView = [[UIImageView alloc] initWithImage:image];
CALayer *mask1 = [CALayer layer];
mask1.contents = (id)[maskImage CGImage];
mask1.frame = CGRectMake(0, 0, 1024, 768);
imageView.layer.mask = mask1;
imageView.layer.masksToBounds = YES;
return imageView;
}
And I am calling this as
self.image2 = [UIImage imageNamed:#"screen2Full.png"];
self.mask2 = [UIImage imageNamed:#"maskImage.png"];
self.imageView2 = [self maskedImage:self.image2 withMasked:self.mask2];
[self.completeSingleView addSubview:self.imageView2];
This is working perfectly.
Now for Step 2. Animate the Mask, so that Full Image can be shown. I have googled a lot about this but didn't get success. So Please help me. I just want to know how can we Animate and Resize the Mask Image So that I can view a full Image. My concept is as below.
So finally i got the solution from multiple sites and some own logic and hard work obviously ;). So here is the solution of this
-(void)moveLayer:(CALayer*)layer to:(CGPoint)point
{
// Prepare the animation from the current position to the new position
CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:#"position"];
animation.fromValue = [layer valueForKey:#"position"];
animation.toValue = [NSValue valueWithCGPoint:point];
animation.duration = .3;
layer.position = point;
[layer addAnimation:animation forKey:#"position"];
}
-(void)resizeLayer:(CALayer*)layer to:(CGSize)size
{
CGRect oldBounds = layer.bounds;
CGRect newBounds = oldBounds;
newBounds.size = size;
CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:#"bounds"];
animation.fromValue = [NSValue valueWithCGRect:oldBounds];
animation.toValue = [NSValue valueWithCGRect:newBounds];
animation.duration = .3;
layer.bounds = newBounds;
[layer addAnimation:animation forKey:#"bounds"];
}
- (UIImageView*) animateMaskImage:(UIImage *)image withMask:(UIImage *)maskImage width:(int )wd andHeight:(int )ht andSize:(CGSize)size andPosition:(CGPoint)pt {
UIImageView *imageView = [[UIImageView alloc] initWithImage:image];
CALayer *mask = [CALayer layer];
mask.contents = (id)[maskImage CGImage];
mask.frame = CGRectMake(0, 0, wd, ht);
//This needs to be place before masking. I don't knwo why. But its working :)
[self resizeLayer:mask to:size];
[self moveLayer:mask to:pt];
imageView.layer.mask = mask;
imageView.layer.masksToBounds = YES;
return imageView;
}
You just need to call this as
[self.imageView1 removeFromSuperview];
self.imageView1 = [self animateMaskedImage:self.image1 withMasked:self.mask1 width:1024 andHeight:768 andSize:CGSizeMake(1024*4, 768*4) andPosition:CGPointMake(1024*2, 768*2)];
[self.completeSingleView addSubview:self.imageView1];
I have a class which is predefining some labels and binding their values in a UIScrollView.
I've managed to show those labels, but now I'm stuck at putting a label at the 2nd part of the ScrollView.
I've pushed my project to gitHub.
I can change the label's place on the already visible part, but I must be overlooking something.
- (void)viewDidLoad
{
[super viewDidLoad];
self.navigationItem.title = _detail.name;
UIColor *bgColor = [UIColor blackColor];
UIColor *txtColor = [UIColor grayColor];
CGRect frame;
frame.origin.x = 0;
frame.origin.y = 0;
frame.size.width = _scrollView.frame.size.width *2;
NSString *phoneNr = (_detail.phoneNr == nil) ? #"Not specified" : _detail.phoneNr;
_telLabel = [self prepareLabel:phoneNr textColor:txtColor bgColor:bgColor page:0 y:telNrYAxis];
_webLabel = [self prepareLabel:#"Visit website" textColor:txtColor bgColor:bgColor page:0 y:websiteYAxis];
_detail.address = [_detail.address stringByTrimmingCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:#"\n\t "]];
NSArray *addressArrComponents = [_detail.address componentsSeparatedByString:#","] ;
_addressLabel = [self prepareLabel:[addressArrComponents componentsJoinedByString:#"\n"] textColor:txtColor bgColor:bgColor page:0 y:addressYAxis];
UILabel *lbl = [self prepareLabel:#"Derp" textColor:txtColor bgColor:bgColor page:1 y:0];
_detailView = [[UIView alloc] initWithFrame:frame];
_detailView.backgroundColor = [UIColor blackColor];
[_detailView addSubview:_webLabel];
[_detailView addSubview:_addressLabel];
[_detailView addSubview:_telLabel];
[_detailView addSubview:lbl];
[_scrollView addSubview:_detailView];
NSLog(#"%f",self.view.frame.size.height - (_scrollView.frame.origin.y + _scrollView.frame.size.height) );
_pageControl = [[UIPageControl alloc] initWithFrame:CGRectMake(self.view.frame.size.width/2, self.view.frame.size.height - 250 , self.view.frame.size.width/4, 120)];
_pageControl.numberOfPages=2;
_pageControl.currentPage=0;
[_pageControl addTarget:self action:#selector(pageChange:) forControlEvents:UIControlEventTouchDown];
_scrollView.contentSize = CGSizeMake(800,800);
_scrollView.delegate=self;
_scrollView.backgroundColor = [UIColor blackColor];
_scrollView.pagingEnabled=YES;
_scrollView.showsHorizontalScrollIndicator = NO;
_scrollView.showsVerticalScrollIndicator = NO;
_scrollView.scrollsToTop = NO;
[self pageChange:0];
[self.view addSubview:_pageControl];
// Do any additional setup after loading the view.
}
-(UILabel*)prepareLabel:(NSString*) text textColor:(UIColor*)textColor bgColor:(UIColor*)backgroundColor page:(int)page y:(int) yPos{
int lines = [[text componentsSeparatedByString:#"\n"] count];
CGRect labelFrame = CGRectMake(_detailView.frame.size.width * page +20,yPos,self.view.frame.size.width, [UIFont systemFontSize]*lines);
UILabel *returnLabel = [[UILabel alloc] initWithFrame:labelFrame];
returnLabel.text = text;
returnLabel.backgroundColor = backgroundColor;
returnLabel.textColor = textColor;
[returnLabel setNumberOfLines:lines];
[returnLabel sizeToFit];
return returnLabel;
}
- (void)loadScrollViewWithPage:(int)page {
NSLog(#"Derped");
}
-(IBAction)pageChange:(id)sender{
int page=_pageControl.currentPage;
CGRect frame = _scrollView.frame;
frame.origin.x = _scrollView.frame.size.width * page;
frame.origin.y = 0;
//CGRect frame= (page == 0) ? _detailFrame : _reviewFrame;
NSLog(#"%f",frame.origin.x);
[_scrollView scrollRectToVisible:frame animated:YES];
}
The delegate -(IBAction)pageChange:(id)sender gets fired, but I must be doing something wrong with the frames somewhere :s
Please take a look!
Try to implement this method may help you :
- (void)scrollViewDidScroll:(UIScrollView *)scrollView {
CGFloat pageWidth = self.scrollView.frame.size.width;
float fractionalPage = self.scrollView.contentOffset.x / pageWidth;
NSInteger page = lround(fractionalPage);
self.pageControl.currentPage = page;
}
I am using this code to show scrolling images but I am only getting a white screen. I drag drop uiscrollview, created the iboutlet, synthesized it and rest of the code is here
#synthesize scrollView1;
const CGFloat kScrollObjHeight = 199.0;
const CGFloat kScrollObjWidth = 280.0;
const NSUInteger kNumImages = 5;
- (void)layoutScrollImages
{
UIImageView *view = nil;
NSArray *subviews = [scrollView1 subviews];
// reposition all image subviews in a horizontal serial fashion
CGFloat curXLoc = 0;
for (view in subviews)
{
if ([view isKindOfClass:[UIImageView class]] && view.tag > 0)
{
CGRect frame = view.frame;
frame.origin = CGPointMake(curXLoc, 0);
view.frame = frame;
curXLoc += (kScrollObjWidth);
}
}
// set the content size so it can be scrollable
[scrollView1 setContentSize:CGSizeMake((kNumImages * kScrollObjWidth), [scrollView1 bounds].size.height)];
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view from its nib.
scrollView1 = [[UIScrollView alloc]init];
bgArray = [NSArray arrayWithObjects:#"Bg", #"Bg1.png", #"Bg2.png", #"Bg3.png", #"Bg4.png", #"Bg5.png", #"Bg6.png", #"Bg7.png", #"Bg8.png", nil];
[scrollView1 setBackgroundColor:[UIColor blackColor]];
[scrollView1 setCanCancelContentTouches:NO];
scrollView1.indicatorStyle = UIScrollViewIndicatorStyleWhite;
scrollView1.clipsToBounds = YES; // default is NO, we want to restrict drawing within our scrollview
scrollView1.scrollEnabled = YES;
// pagingEnabled property default is NO, if set the scroller will stop or snap at each photo
// if you want free-flowing scroll, don't set this property.
scrollView1.pagingEnabled = YES;
// load all the images from our bundle and add them to the scroll view
NSUInteger i;
for (i = 0; i < [bgArray count]; i++)
{
NSString *imageName = [NSString stringWithFormat:#"%#", [bgArray objectAtIndex:i]];
UIImage *image = [UIImage imageNamed:imageName];
UIImageView *imageView = [[UIImageView alloc] initWithImage:image];
// setup each frame to a default height and width, it will be properly placed when we call "updateScrollList"
CGRect rect = imageView.frame;
rect.size.height = 199.0;
rect.size.width = 280.0;
imageView.frame = rect;
imageView.tag = i; // tag our images for later use when we place them in serial fashion
[scrollView1 addSubview:imageView];
[scrollView1 setShowsHorizontalScrollIndicator:NO];
[scrollView1 setShowsVerticalScrollIndicator:NO];
}
[self layoutScrollImages];
}
I think if you are create UIScrollView from code
scrollView1 = [[UIScrollView alloc]init];
then please add the scrollView1 in view
Example:-[self.view addSubview:scrollView1];
if you are create UIScrollView from nib then
not use this code
scrollView1 = [[UIScrollView alloc]init];
solve your probem
This is my code for adding sound while UIScrollview is scrolling in iPhone SDK. In this code, how to add the sound while using touch-events in scrolling?
Please give me your idea and suggestion or sample.
const CGFloat kScrollObjHeight = 151.0;
const CGFloat kScrollObjWidth =320.0;
const NSUInteger kNumImages = 5;
- (void)layoutScrollImages
{
UIImageView *view = nil;
NSArray *subviews = [scrollView1 subviews];
CGFloat curXLoc = 0;
for (view in subviews)
{
if ([view isKindOfClass:[UIImageView class]] && view.tag > 0)
{
CGRect frame = view.frame;
frame.origin = CGPointMake(curXLoc, 0);
view.frame = frame;
curXLoc += (kScrollObjWidth);
}
}
[scrollView1 setContentSize:CGSizeMake((kNumImages * kScrollObjWidth), [scrollView1 bounds].size.height)];
}
- (void)viewDidLoad
{
self.view.backgroundColor = [UIColor clearColor];
[scrollView1 setBackgroundColor:[UIColor whiteColor]];
[scrollView1 setCanCancelContentTouches:NO];
scrollView1.indicatorStyle = UIScrollViewIndicatorStyleWhite;
scrollView1.clipsToBounds = YES;
scrollView1.scrollEnabled = YES;
scrollView1.pagingEnabled = YES;
NSUInteger i;
for (i = 1; i <= kNumImages; i++)
{
NSString *imageName = [NSString stringWithFormat:#"snap%d.jpg", i];
UIImage *image = [UIImage imageNamed:imageName];
UIImageView *imageView = [[UIImageView alloc] initWithImage:image];
CGRect rect = imageView.frame;
rect.size.height = kScrollObjHeight;
rect.size.width = kScrollObjWidth;
imageView.frame = rect;
imageView.tag = i;
[scrollView1 addSubview:imageView];
[imageView release];
[self layoutScrollImages];
}
[super viewDidLoad];
}
add UIScrollViewDelegate to your interface and then play sound while the scrolling is in task in scrollViewWillBeginDragging state and stop scrolling while in scrollViewDidEndDragging state.
You can use AVAudioPlayer to play sound on iOS devices
UPDATE:
Tells the delegate when the scroll view is about to start scrolling the content.
- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView
Also, Tells the delegate when dragging ended in the scroll view.
- (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate
Implement these in your code & put in your custom behavior
you mast use UIScrollViewDelegate method
- (void)scrollViewDidScroll:(UIScrollView *)scrollView{
//play sound here
}