I've got a simple animation running and its moving up and down with a camera view as a background. I am trying to generate more animation at a random rate. Is that possible?
I am running my animation through UIView startAnimation.
NSArray *myImages = [NSArray arrayWithObjects:
[UIImage imageNamed:#"enemyball.png"],
[UIImage imageNamed:#"playerball.png"]
, nil];
//animation of images
UIImageView *animatedView =[UIImageView alloc];
[animatedView initWithFrame:[self bounds]];
animatedView.animationImages = myImages;
animatedView.animationDuration = 0.25; // seconds
animatedView.animationRepeatCount = 0; //0 loops for ever/noted
[animatedView startAnimating];
[self addSubview:animatedView];
//animation movement
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:1];
[UIView setAnimationCurve:1];
[UIView setAnimationRepeatCount:INFINITY];
[UIView setAnimationRepeatAutoreverses:YES];
[UIView setAnimationBeginsFromCurrentState:YES];
CGAffineTransform transform = CGAffineTransformMakeTranslation(220, 330);
animatedView.transform = transform;
[UIView commitAnimations];
And this is an overlay that I want to display in my camera view.
- (void) viewDidAppear:(BOOL)animated {
enemyBall *overlay = [[enemyBall alloc] initWithFrame:CGRectMake(20, 20, 50, 50)];
//OverlayView *overlay = [[OverlayView alloc] initWithFrame:CGRectMake(0, 0, SCREEN_WIDTH, SCREEN_HEIGTH)];
// Create a new image picker instance:
UIImagePickerController *picker = [[UIImagePickerController alloc] init];
// Set the image picker source:
picker.sourceType = UIImagePickerControllerSourceTypeCamera;
// Hide the controls:
picker.showsCameraControls = NO;
picker.navigationBarHidden = YES;
// Make camera view full screen:
picker.wantsFullScreenLayout = YES;
picker.cameraViewTransform = CGAffineTransformScale(picker.cameraViewTransform, CAMERA_TRANSFORM_X, CAMERA_TRANSFORM_Y);
// Insert the overlay:
//picker.cameraOverlayView = overlay;
picker.cameraOverlayView = overlay;
// Show the picker:
[self presentModalViewController:picker animated:YES];
[super viewDidAppear:YES];
}
I am trying to have my animation generate in a random sequence and timing but placing another set of array code seems too much and I can't have a second overlay because it doesn't read the second overlay. Is this possible?
Related
How can I move an array of images randomly in iPhone app.
Bellow code is for moving one image. I've to use an array of images.
- (void)moveImage:(UIImageView *)image duration:(NSTimeInterval)duration
curve:(int)curve x:(CGFloat)x y:(CGFloat)y
{
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:duration];
[UIView setAnimationCurve:curve];
[UIView setAnimationBeginsFromCurrentState:YES];
// The transform matrix
CGAffineTransform transform = CGAffineTransformMakeTranslation(x, y);
image.transform = transform;
// Commit the changes
[UIView commitAnimations];
}
- (void)viewDidLoad
{
[super viewDidLoad];
UIImageView *imageToMove =
[[UIImageView alloc] initWithImage:[UIImage imageNamed:#"fish.png"]];
imageToMove.frame = CGRectMake(70, 120, 100, 100);
[self.view addSubview:imageToMove];
[self moveImage:imageToMove duration:1.0
curve:UIViewAnimationCurveLinear x:0.0 y:110.0];
}
you can use this it might help you:
NSArray *animationArray=[NSArray arrayWithObjects:
[UIImage imageNamed:#"img1.png"],
[UIImage imageNamed:#"img2.png"],
[UIImage imageNamed:#"img3.png"],
[UIImage imageNamed:#"img4.png"],
nil];
UIImageView *animationView=[[UIImageView alloc]initWithFrame:CGRectMake(0, 0,320, 460)];
animationView.backgroundColor=[UIColor purpleColor];
animationView.animationImages=animationArray;
animationView.animationDuration=1.5;
animationView.animationRepeatCount=0;
[animationView startAnimating];
[self.view addSubview:animationView];
[animationView release];
This is just a conceptual code so please make changes according to your need.
I am doing an app in which i need to draw lines in one view and that automatically should appear in the other view. Any help would be appreciated..
I have tried this..
- (void)viewDidLoad
{
[super viewDidLoad];
slv = [[SmoothLineView alloc] initWithFrame:CGRectMake(DrawingView.bounds.origin.x, DrawingView.bounds.origin.y + 42, DrawingView.bounds.size.width, DrawingView.bounds.size.height - 42)];
slv.delegate = self;
[DrawingView addSubview:slv];
}
-(IBAction)btnAnotherView:(UIButton *)sender
{
[zoomingTypingView setUserInteractionEnabled:YES];
if(sender.tag == 123)
{
[self.view setBackgroundColor:[UIColor colorWithWhite:0.500 alpha:1.000]];
[UIView animateWithDuration:0.5
delay:0.1
options:UIViewAnimationTransitionCurlUp
animations:^{
//animation code
zoomingTypingView.frame = CGRectMake(0, 549, 768, 451);
} completion:^(BOOL finished) {
}];
CGRect imageFrame = CGRectMake(50, 50, 220, 120);
ResizableView = [[SPUserResizableView alloc] initWithFrame:imageFrame];
CGRect gripFrame = CGRectMake(50,50, 220,120);
UIView *zoom = [[UIView alloc]initWithFrame:gripFrame];
UIScrollView *zoomscroll = [[UIScrollView alloc]initWithFrame:gripFrame];
[zoomscroll setZoomScale:32.0];
[zoomscroll setMaximumZoomScale:32.0];
[zoom addSubview:zoomscroll];
[ResizableView setContentView:zoom];
ResizableView.delegate = self;
[DrawingView addSubview:ResizableView];
sender.tag = 246;
}
else
{
[UIView animateWithDuration:0.5
delay:0.1
options:UIViewAnimationTransitionCurlUp
animations:^{
//animation code
zoomingTypingView.frame = CGRectMake(0, 999, 768, 451);
} completion:^(BOOL finished) {
[self.view setBackgroundColor:[UIColor whiteColor]];
}];
[ResizableView removeFromSuperview];
[DrawingView addSubview:slv1];
sender.tag = 123;
}
}
In the above Image WhiteColored View is the new View and if i draw in that whiteColoredView that should reflect in both the views.
You can get more idea by looking at the NOTE TAKER HD APP.
http://www.youtube.com/watch?v=FdGDnUKZcMM
If you have two views defined:
#property(nonatomic) UIView *view1;
#property(nonatomic) UIView *view2;
instead of do self.view, you can have function does the drawing for one view:
-(void)drawView:(UIView*)view{
//your drawing code here
}
And just call the same function twice with passing different views.
In my app I want to launch UIViewController from top to bottom.So from FirstViewController I am launching MyWebViewController(which I need to animate) as follows:
MyWebViewController *theWebViewController = [[MyWebViewController alloc] initWithFrame:self.view.bounds];
[self.view addSubview:theWebViewController.view];
and In loadView of MyWebViewController I am assigning frame to view as follows;
- (void)loadView
{
CGRect theFrame;
theFrame = CGRectMake(0.0, 20.0, mFrame.size.width, 0.0);
UIView *view = [[UIView alloc] init];
view.frame = theFrame;
self.view = view;
[view release];
}
and In viewDidLoad I am changing the frame as follows:
- (void)viewDidLoad
{
[super viewDidLoad];
self.view.backgroundColor = [UIColor clearColor];
self.view.autoresizingMask = UIViewAutoresizingFlexibleWidth |UIViewAutoresizingFlexibleHeight;
[UIView beginAnimations:#"animateView" context: nil];
[UIView setAnimationBeginsFromCurrentState:YES];
[UIView setAnimationDuration:0.5];
self.view.frame = CGRectMake(0.0, 20.0, mFrame.size.width, mFrame.size.height-20.0);
[UIView commitAnimations];
}
But the animation is not happening.I even tried this code to animate from bottom to top and it is working fine but vice-versa not working.Please can anyone tell me where I am doing wrong and how I can achieve?
Thanks in advance!
I wouldn't think to set the height to 0. Instead:
- (void)loadView
{
CGRect theFrame;
theFrame = CGRectMake(0.0, -mframe.size.height + 20, mFrame.size.width, m.frame.size.height - 20);
UIView *view = [[UIView alloc] init];
view.frame = theFrame;
self.view = view;
[view release];
}
You want to set the frame above and out of the view when you add it. Then move it into place in the animation.
How to integrate the pinch zoom and zoom out in our apps, i am using imageview on scrollView
and my code is:
- (IBAction)handlePinchGesture:(UIGestureRecognizer *) recognizer {
if(zoomEnable == TRUE)
{
CGFloat factor = [(UIPinchGestureRecognizer *) recognizer scale];
CGFloat lastScaleFactor = 1;
//if the current factor is greater 1 --> zoom in
if (factor > 1) {
scrollView.transform = CGAffineTransformMakeScale(lastScaleFactor + (factor-1),lastScaleFactor + (factor-1));
scrollView.scrollEnabled = YES;
} else {
[UIView beginAnimations:#"animation" context:nil];
[UIView setAnimationDuration:0.5];
[UIView setAnimationTransition:UIViewAnimationTransitionNone forView:scrollView cache:NO];
scrollView.transform = CGAffineTransformMakeScale(1,1);
[UIView commitAnimations];
}
isScrollable = TRUE;
}
}
Its start zooming every time from start i want if i zoom some then again it start when i stop zoom. Any help is highly Appreciated
Thanks;
You don't need to use UIGestureRecognizers, if you're using UIScrollView already. UIScrollView supports pinch to zoom.
For zooming and panning to work, the delegate must implement both viewForZoomingInScrollView: and scrollViewDidEndZooming:withView:atScale:; in addition, the maximum (maximumZoomScale) and minimum (minimumZoomScale) zoom scale must be different.
-(void)zoomingImages{
self.FullSizeScrollView.pagingEnabled =YES;
NSMutableArray *_scrollArray =[[NSMutableArray alloc]init];
// add images to scroll array
[_scrollArray addObject:self.image1];
[_scrollArray addObject:self.image2];
//now call init with frame function given below to set frame for each image in scroll view
for(int i =0 ;i<[_scrollArray count];i++){
ZoomingImageView *_imageScrollView = [[ZoomingImageView alloc]initWithFrame:CGRectMake(i*320, 0, 320, 460)];
_imageScrollView.captureView=self;
[self.checkFullSizeScrollView addSubview:_imageScrollView];
[_imageScrollView release];
self.checkFullSizeScrollView.contentSize = CGSizeMake((i*320)+320, 460);
}
[_scrollArray release];
}
#implementation ZoomingImageView
- (id)initWithFrame:(CGRect)frame{
self = [super initWithFrame:frame];
if (self) {
self.maximumZoomScale = 4;
self.minimumZoomScale = 1;
self.userInteractionEnabled = YES;
self.multipleTouchEnabled = YES;
self.delegate = self;
self.bouncesZoom = NO;
self.currentImageView.clipsToBounds=NO;
self.contentMode =UIViewContentModeScaleAspectFit;
UIImageView *zoomImageView_ =[[UIImageView alloc]initWithFrame:CGRectMake(0, 0, frame.size.width, frame.size.height)];
self.currentImageView = zoomImageView_;
[zoomImageView_ release];
self.currentImageView.contentMode =UIViewContentModeScaleAspectFit;
self.currentImageView.userInteractionEnabled = YES;
self.currentImageView.multipleTouchEnabled = YES;
[self addSubview:self.currentImageView];}
return self;}
I am displaying two images in my iPhone app, one on top, one on the bottom. They cover the entire screen. The user, with a swipe gesture, can change either of the images, depending on where the swipe started.
I want the image to change with an animated transition. It currently works without animation, or with the entire screen transitioning. Is it possible to make the transition occur over part of the screen?
I load the images for the first time (in viewDidLoad) thus:
// top image
UIImage *topImage = [UIImage imageNamed:#"top1.png"];
CGRect topframe = CGRectMake(0.0f, 0.0f, 320.0f, 240.0f);
UIImageView *topView = [[UIImageView alloc] initWithFrame:topframe];
topView.image = topImage;
[self.view addSubview:topView];
[topView release];
// bottom image
UIImage *bottomImage = [UIImage imageNamed:#"bottom1.png"];
CGRect bottomframe = CGRectMake(0.0f, 240.0f, 320.0f, 240.0f);
UIImageView *bottomView = [[UIImageView alloc] initWithFrame:bottomframe];
bottomView.image = bottomImage;
[self.view addSubview:bottomView];
[bottomView release];
When I detect a swipe, and detect which of the two images are to be changed, I call a routine like this one:
- (void)changeTopImage:(NSString *)newImage {
UIImage *topImage = [UIImage imageNamed:newImage];
CGRect topframe = CGRectMake(0.0f, 0.0f, 320.0f, 240.0f);
UIImageView *topView = [[UIImageView alloc] initWithFrame:topframe];
topView.image = topImage;
[self.view addSubview:topView];
[topView release];
}
Essentilly, I'm continually loading images on top of each other. Is that the best way to do it, especially in terms of memory management?
Everything else I've tried, using techniques such as below, make the entire screen transition:
[UIView beginAnimations:nil context:nil];
...
[UIView commitAnimations];
Thanks for any leads on which way I should be going on this.
well, an easy way could be this (repeat for the bottomImage):
don't release topView when you load it the first time in your method,
but declare it in your .h file,
and use a tempView too:
#interface YourClass: UIViewController{
UIImageView *topView;
UIImageView *tempView;
}
this way you can call them to move them and remove them when you load a new image
then in .m:
EDIT: some correction (see coco's comments):
[a] [b] line 4 = [c] line 11:
- (void)changeTopImage:(NSString *)newImage {
UIImage *topImage = [UIImage imageNamed:newImage];
//CGRect topframe = CGRectMake(0.0f, 0.0f, (320.0f + 320), 240.0f);
CGRect topframe = CGRectMake((0.0f + 320), 0.0f, 320.0f, 240.0f);
tempView = [[UIImageView alloc] initWithFrame:topframe];
//topView.image = topImage;
tempView.image = topImage;
[self.view addSubview:tempView];
[[UIApplication sharedApplication] beginIgnoringInteractionEvents];
[UIView beginAnimations:#"animation" context:NULL];
[UIView setAnimationDuration:0.5];
[UIView setAnimationDelegate:self];
tempView.center = topView.center;
// do this to push old topView away, comment next line if wanna new image just cover it
//topView.center = CGPointMake(topView.x - 320, topView.y);
topView.center = CGPointMake(topView.center.x - 320, topView.center.y);
// call a method when animation has finished:
[UIView setAnimationDidStopSelector:#selector(endOfAnimation:finished:context:)];
[UIView commitAnimations];
}
- (void)endOfAnimation:(NSString *)animationID finished:(NSNumber *)finished context:(void *)context{
[topView removeFromSuperview];
topView = tempView;
[tempView release];
tempView = nil;
[[UIApplication sharedApplication] endIgnoringInteractionEvents];
}
- (void)dealloc {
if (tempView != nil) {
[tempView release];
}
[topView release];
[super dealloc];
}