- (void)moveImage:(UIImageView *)image duration:(NSTimeInterval)duration
curve:(int)curve x:(CGFloat)x y:(CGFloat)y
{
// Setup the animation
[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:#"icon.png"]];
imageToMove.frame = CGRectMake(10, 10, 20, 20);
[self.view addSubview:imageToMove];
// Move the image
[self moveImage:imageToMove duration:3.0
curve:UIViewAnimationCurveLinear x:50.0 y:50.0];
}
I have tried this one.It works fine at one time from left to right.But i need to move the image from left and right to left repeatedly.
Thanks in advance.
[UIView animateWithDuration:timeDuration
delay:0.0f
options:UIViewAnimationOptionRepeat | UIViewAnimationOptionAutoreverse | UIViewAnimationCurveLinear
animations:^{
[iVBackgroundImg setFrame:YOUR_FRAME];
}
completion:nil];
[UIView commitAnimations];
y dont you create a NSTimer that repeatedly calls the function every 5 secs(where 5 is the time reqd to move from left to right) and then this function will check.
if(image.origin.x< 0 )
//move image to right
else if(image.origin.x > 320)
// move image to left.
Either user NSTimer or in your move function call a [self performSelector:];
Related
I want to move my UIView from left to right in a repeatedly till the view not reached at the boundary of the right side. the below code running repeatedly but move only 5 points and repeat from starting point i want to repeat from last current state and the +5 to move further.
CGPoint pos = mover.center;
pos.x=25;
int count = 25;
[UIView beginAnimations:nil context:NULL];
pos.x=count;
[UIView setAnimationDuration:0];
[UIView setAnimationBeginsFromCurrentState:YES];
[UIView setAnimationRepeatCount:INFINITY];
//[UIView setAnimationRepeatAutoreverses:YES];
// CGPoint pos = mover.center;
//pos.x +=5;
count = (pos.x+=5);
mover.center = pos;
i want to see object moving in +5 points interval.
and i'm new in objective c and iphone so please help me as fast as possible .
basically my task is move view on the border of the screen mean (left to right ,up to down ,right to left and down to up) means move view in in sequence and through border of the screen of simulator repeatedly.
i hope your answer helpful to me and other who is new in this technology(iPhone).
thank you very much.
To move view from one position to another i would set its frame inside animation block. Something like this would help you:
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
// `customView` is a UIView defined in .h file
customView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 100, 100)];
customView.backgroundColor = [UIColor redColor];
[self.view addSubview:customView];
[self rotateViewInSelfBoundary];
}
-(void)rotateViewInSelfBoundary
{
CGRect screen = [[UIScreen mainScreen] bounds];
// Top Left to top right
[UIView animateWithDuration:3.0f
animations:^{
[customView setFrame:CGRectMake(screen.size.width - customView.frame.size.width, 0, 100, 100)];
}
completion:^(BOOL finished)
{
// Top right to bottom right
[UIView animateWithDuration:3.0f
animations:^{
[customView setFrame:CGRectMake(screen.size.width - customView.frame.size.width, screen.size.height - customView.frame.size.height, 100, 100)];
}
completion:^(BOOL finished)
{
// bottom right to bottom left
[UIView animateWithDuration:3.0f
animations:^{
[customView setFrame:CGRectMake(0, screen.size.height - customView.frame.size.height, 100, 100)];
}
completion:^(BOOL finished)
{
// bottom left to top left
[UIView animateWithDuration:3.0f
animations:^{
[customView setFrame:CGRectMake(0, 0, 100, 100)];
}
completion:^(BOOL finished)
{
// call the same function again.
[NSObject cancelPreviousPerformRequestsWithTarget:self selector:#selector(rotateViewInSelfBoundary) object:nil];
[self performSelector:#selector(rotateViewInSelfBoundary) withObject:nil afterDelay:0.0f];
}];
}];
}];
}];
}
Screen shots:
use UIViewAnimationOptionBeginFromCurrentState like
[UIView animateWithDuration:1.0f
delay:2.0f
options:UIViewAnimationOptionRepeat | UIViewAnimationOptionBeginFromCurrentState
animations:^{
//your animation
}
completion:nil];
If you want to move the view in a square, define the four CGPoint values it should animate between and then:
NSArray *values = #[[NSValue valueWithCGPoint:point0],
[NSValue valueWithCGPoint:point1],
[NSValue valueWithCGPoint:point2],
[NSValue valueWithCGPoint:point3],
[NSValue valueWithCGPoint:point0]];
CAKeyframeAnimation *animation = [CAKeyframeAnimation animationWithKeyPath:#"position"];
animation.values = values;
animation.duration = 5.0;
animation.repeatCount = HUGE_VALF;
[mover.layer addAnimation:animation forKey:#"moveAroundBorder"];
This will take care of all of the moving of the view with no further intervention on your part.
If you want to use the iOS 7 block-based key-frame animation, it would be:
[UIView animateWithDuration:5.0 delay:0.0 options:UIViewAnimationOptionCurveLinear animations:^{
[UIView animateKeyframesWithDuration:5.0 delay:0.0 options:UIViewKeyframeAnimationOptionRepeat | UIViewKeyframeAnimationOptionCalculationModeLinear animations:^{
[UIView addKeyframeWithRelativeStartTime:0.00 relativeDuration:0.25 animations:^{
mover.center = point0;
}];
[UIView addKeyframeWithRelativeStartTime:0.25 relativeDuration:0.25 animations:^{
mover.center = point1;
}];
[UIView addKeyframeWithRelativeStartTime:0.50 relativeDuration:0.25 animations:^{
mover.center = point2;
}];
[UIView addKeyframeWithRelativeStartTime:0.75 relativeDuration:0.25 animations:^{
mover.center = point3;
}];
} completion:nil];
} completion:nil];
Note the curious nesting of animateKeyframesWithDuration within the animateWithDuration. That's because the UIViewKeyframeAnimationOptionCalculationModeLinear curiously does not stop the "ease in / ease out" behavior, so you have to specify UIViewAnimationOptionCurveLinear on the outer animation block.
i Have two images generated like this
- (void)moveImage:(UIImageView *)image duration:(NSTimeInterval)duration
curve:(int)curve x:(CGFloat)x y:(CGFloat)y
{
// Setup the animation
[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)alien {
enemy =
[[UIImageView alloc] initWithImage:[UIImage imageNamed:#"alien.png"]];
enemy.frame = CGRectMake(-100, 20, 50, 50);
[self.view addSubview:enemy];
// Move the image
[self moveImage:enemy duration:5
curve:UIViewAnimationCurveLinear x:460 y:0.0]; }
- (void)bullet4 {
bullet =
[[UIImageView alloc] initWithImage:[UIImage imageNamed:#"Bullet.png"]];
bullet.frame = CGRectMake(carDude.center.x, 380, 5, 10);
[self.view addSubview:bullet];
// Move the image
[self moveImage:bullet duration:3
curve:UIViewAnimationCurveLinear x:0 y:-500.0]; }
I'm trying to hide them when they intersect. There can be many on the screen at the same time but i tried,
-(void)checkCollision {
if(CGRectIntersectsRect(bullet.frame, enemy.frame)) {
}
}
and no luck getting the images to do anything when they collide.
How can i get the image to hide and check collision?
If you change the transform of a view, its frame doesn't change (it can even become unvalid) and should be ignored.
From the documentation:
Warning If this property is not the identity transform, the value of the frame property is undefined and therefore should be ignored.
Since all you're doing is applying a translation transform, why don't you animate the frame instead?
I have a UIButton somewhere on my view. On touch event of button I making a UIView appear. The UIAnimation I have used make the view appear from top of window. But I want it to appear from button.frame.origin.y . Before touching the button the view is not visible. On touching the button view should start appearing from above position.
Here is the code :
-(IBAction) ShowInfowView:(id)sender{
CGRect rect = viewInfo.frame;
rect.origin.y = rect.size.height - rect.size.height+58.0;
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:0.70];
[UIView setAnimationDelay:0.0];
[UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
viewInfo.frame = rect;
[UIView commitAnimations];
}
This is how I am hiding the view again :
-(IBAction) HideInfoView:(id)sender{
CGRect rect = viewInfo.frame;
rect.origin.y = -rect.size.height;
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:0.70];
[UIView setAnimationDelay:0.0];
[UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
viewInfo.frame = rect;
[UIView commitAnimations];
}
In viewDidLoad I am doing the following :
CGRect rect = viewInfo.frame;
rect.origin.y = -rect.size.height;
viewInfo.frame = rect;
UPDATE:
Please see this example. Here view is appearing from top of screen. I want it to appear from button y axis. For that matter please consider button y position a bit upwards.
So you want a slide-in effect, but not from the top of the screen, just some arbitrary value?
One way to do it:
1) You should create a view that has the dimensions and position of your desired view AFTER animation finishes, we'll call it baseview.
2) Set this baseview property clipsToBounds to YES. This will make all subviews that are outside of the baseview's frame invisible.
3) Add your animating view as a subview of the baseview, but set the frame so it is invisible (by plcacing it above the baseview):
frame = CGRectMake(0, -AnimViewHeight, AnimViewWidth, AnimViewHeight);
4) Animate the animview frame:
//put this inside of an animation block
AnimView.frame = CGRectMake(0, 0, AnimViewWidth, AnimViewHeight);
EDIT:
Example:
//define the tags so we can easily access the views later
#define BASEVIEW_TAG 100
#define INFOVIEW_TAG 101
- (void) showInfo
{
//replace the following lines with preparing your real info view
UIView * infoView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 100, 100)];
[infoView setBackgroundColor: [UIColor yellowColor]];
[infoView setTag: INFOVIEW_TAG];
//this is the frame of the info view AFTER the animation finishes (again, replace with real values)
CGRect targetframe = CGRectMake(100, 100, 100, 100);
//create an invisible baseview
UIView * baseview = [[UIView alloc] initWithFrame:targetframe];
[baseview setBackgroundColor: [UIColor clearColor]];
[baseview setClipsToBounds: YES]; //so it cuts everything outside of its bounds
[baseview setTag: BASEVIEW_TAG];
//add the nfoview to the baseview, and set it above the bounds frame
[baseview addSubview: infoView];
[infoView setFrame:CGRectMake(0, -infoView.bounds.size.height,
infoView.bounds.size.width, infoView.bounds.size.height)];
//add the baseview to the main view
[self.view addSubview: baseview];
//slide the view in
[UIView animateWithDuration: 1.0 animations:^{
[infoView setFrame: baseview.bounds];
}];
//if not using ARC, release the views
[infoview release];
[baseview release];
}
- (void) hideinfo
{
//get the views
UIView * baseView = [self.view viewWithTag: BASEVIEW_TAG];
UIView * infoView = [baseView viewWithTag: INFOVIEW_TAG];
//target frame for infoview - slide up
CGRect out_frame = CGRectMake(0, -infoView.bounds.size.height,
infoView.bounds.size.width, infoView.bounds.size.height);
//animate slide out
[UIView animateWithDuration:1.0
animations:^{
[infoView setFrame: out_frame];
} completion:^(BOOL finished) {
[baseView removeFromSuperview];
}];
}
I have done exactly what you're trying in my recent project.
The following steps should make this work:
1. In your viewDidLoad: you init your viewToFadeIn like this:
viewToFadeIn = [[UIView alloc] initWithFrame:CGRectMake(20,self.view.frame.size.height+10, self.view.frame.size.widh-40, 200)];
//its important to initalize it outside your view
//your customization of this view
[self.view addSubview:viewToFadeIn];
2.your ShowInfowView: Method should look like this:
` -(IBAction) ShowInfowView:(id)sender{
[UIView beginAnimations:#"fadeIn" context:NULL];
[UIView setAnimationDuration:0.25];
[UIView setAnimationDelegate:self];
[UIView setAnimationDidStopSelector:#selector(animationFinished:finished:context:)];
viewToFadeIn.transform = CGAffineTransformMakeTranslation(0, -290);
//290 is in my case, try a little for your correct value
[UIView commitAnimations];
}
3.yourHideInfoView:` Method looks like this
-(IBAction) HideInfoView:(id)sender{
[UIView beginAnimations:#"fadeOut" context:NULL];
[UIView setAnimationDuration:0.25];
[UIView setAnimationDelegate:self];
viewToFadeIn.transform = CGAffineTransformMakeTranslation(0, 0);
[UIView commitAnimations];
}
EDIT:
4. animationFinishedMethod:
- (void)animationFinished:(NSString *)animationID finished:(BOOL)finished context:(void *)context{
if ([animationID isEqual:#"fadeIn"]) {
//Do stuff
}
if ([animationID isEqual:#"fadeOut"]) {
//Do stuff
}
}
SEE THIS
This should do the trick. Good luck
Your problem is not clear (for me).
What is this?
rect.origin.y = rect.size.height - rect.size.height+58.0;
Is 58 origin of your UIButton?
You should use sender.frame etc
Use blocks to animate like this
[UIView animateWithDuration:0.5f animations:^{
// Animation here
} completion:^(BOOL finished) {
// onComplete
}];
- (void) slideIn{
//This assumes the view and the button are in the same superview, if they're not, you'll need to convert the rects
//I'm calling the animated view: view, and the button: button...easy enough
view.clipToBounds = YES;
CGRect buttonRect = button.frame;
CGRect viewRect = CGRectMake(buttonRect.origin.x, buttonRect.origin.y + buttonRect.size.height, view.bounds.size.width, 0);
CGFloat intendedViewHeight = view.height;
view.frame = viewRect;
viewRect.size.height = intendedViewHeight;
[UIView animateWithDuration:.75 delay:0.0f options:UIViewAnimationOptionCurveEaseOut animations:^{
view.frame = viewRect;
}completion:nil];
}
This will cause the the view to appear to slide out from under the button. To slide the view back in, you just reverse the animations. If you wish to slide it up from the button, you'll need to make sure your starting 'y' is the 'y' value of the button (rather than the 'y' + 'height') and animate both the height and y values of the view that needs animating.
The following code move the the imageview from right to left once, but I want to do continously. move right to to left then move back to left offscreen and repeat right to left again.
imageview=[[UIImageView alloc] initWithFrame:CGRectMake(320, 200, 2635, 200)];
image=[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:#"animal" ofType:#"png"]];
[imageview setImage:image];
[self.view addSubview:imageview];
[UIView beginAnimations:#"MoveAndStrech" context:nil];
[UIView setAnimationDuration:40]; //30
[UIView setAnimationBeginsFromCurrentState:YES];
CGPoint p, b, a, c, d,e;
p.x = 0;
p.y = 200;
imageview.center=p;
[UIView commitAnimations];
Add the following lines:
[UIView setAnimationRepeatCount: HUGE_VAL];
[UIView setAnimationRepeatAutoreverses: YES];
Or if you target iOS 4.0+ then blocked-based animations are preferred:
[UIView animateWithDuration:40.0f
delay:0.0f
options: UIViewAnimationOptionRepeat | UIViewAnimationOptionAutoreverse | UIViewAnimationOptionBeginFromCurrentState
animations: ^(void){imageview.center = CGPointMake(0, 200);}
completion:NULL];
I'd like a UIView to slide up from the bottom of the screen (and stay mid-screen) like a UIActionSheet. How can I accomplish this?
UPDATE:
I am using the following code:
TestView* test = [[TestView alloc] initWithNibName:#"TestView" bundle:nil];
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:0.4];
[UIView setAnimationCurve:UIViewAnimationCurveEaseIn];
test.view.center = CGPointMake(160,100);
//test.view.frame = CGRectMake(0, 0, 160, 210);
[[[UIApplication sharedApplication] keyWindow] addSubview:test.view];
[UIView commitAnimations];
The view seems to be animating from the corner and appearing in the corner. How can I make it slide up from the bottom? Getting close!
Do what Matt did here, but just change the values and direction. I have code at home to do this from the bottom if you need it later (I'll update this post).
Link: http://cocoawithlove.com/2009/05/intercepting-status-bar-touches-on.html
Also, don't forget to take out the bit of code that shifts the main view downward (so instead the UIView just pops over top like an ActionSheet)
Updated with code:
This is what I use in one of my apps to show/hide a little "options" view:
- (void)toggleOptions:(BOOL)ViewHidden
{
// this method opens/closes the player options view (which sets repeat interval, repeat & delay on/off)
if (ViewHidden == NO)
{
// delay and move view out of superview
CGRect optionsFrame = optionsController.view.frame;
[UIView beginAnimations:nil context:nil];
optionsFrame.origin.y += optionsFrame.size.height;
optionsController.view.frame = optionsFrame;
[UIView commitAnimations];
[optionsController.view
performSelector:#selector(removeFromSuperview)
withObject:nil
afterDelay:0.5];
[optionsController
performSelector:#selector(release)
withObject:nil
afterDelay:0.5];
optionsController = nil;
}
else
{
optionsController = [[PlayOptionsViewController alloc] init];
//
// Position the options at bottom of screen
//
CGRect optionsFrame = optionsController.view.frame;
optionsFrame.origin.x = 0;
optionsFrame.size.width = 320;
optionsFrame.origin.y = 423;
//
// For the animation, move the view up by its own height.
//
optionsFrame.origin.y += optionsFrame.size.height;
optionsController.view.frame = optionsFrame;
[window addSubview:optionsController.view];
[UIView beginAnimations:nil context:nil];
optionsFrame.origin.y -= optionsFrame.size.height;
optionsController.view.frame = optionsFrame;
[UIView commitAnimations];
}
}
One way would be to use the present modal view controller on the view controller:
presentModalViewController:(UIViewController *)modalViewController animated:(BOOL)animated
For more info take a look at the UIViewController documentation.
EDIT: If you want a mid-screen view you'll need to animate it into position as #jtbandes has pointed out. I suggest also adding some candy to UIView animation block:
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:0.4];
[UIView setAnimationCurve:UIViewAnimationCurveEaseIn];
myView.center = CGPointMake(x,y);
[UIView commitAnimations];
You can then move it again if you need to go full screen or dismiss it.
You'll have to move the view yourself, by setting its center or frame. I'll let you figure out what to set those to. But for the animation:
// set the view to its initial position here...
[UIView beginAnimations:nil context:NULL];
// move the view into place here...
[UIView commitAnimations];
Check out this post: http://blog.yetanotherjosh.com/post/33685102199/3-ways-to-do-a-vertical-transition-with
I'm going with the modal window approach.
Try this solution.... it works
#pragma mark - Date Selector View PresentModelView with Transparent ViewController
- (void) showModal:(UIView*) modalView {
CGRect rect=modalView.frame;
rect.origin=CGPointMake(0, 0);
self.tutorialView.frame=rect;
UIWindow *mainWindow = [(AppDelegate *)[UIApplication sharedApplication].delegate window];
CGPoint middleCenter;
middleCenter = CGPointMake(modalView.center.x, modalView.center.y);
CGSize offSize = [UIScreen mainScreen].bounds.size;
CGPoint offScreenCenter = CGPointMake(offSize.width / 2.0, offSize.height * 1.5);
modalView.center = offScreenCenter;
if ([[mainWindow subviews] containsObject:modalView]) {
[modalView removeFromSuperview];
}
[mainWindow addSubview:modalView];
[mainWindow bringSubviewToFront:modalView];
// Show it with a transition effect
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:0.3];
// animation duration in seconds
modalView.center = middleCenter;
[UIView commitAnimations];
}
// Use this to slide the semi-modal view back down.
- (void) hideModal:(UIView*) modalView {
CGSize offSize = [UIScreen mainScreen].bounds.size;
CGPoint offScreenCenter = CGPointMake(offSize.width / 2.0, offSize.height * 1.5);
[UIView beginAnimations:nil context:(__bridge void *)(modalView)];
[UIView setAnimationDuration:0.3];
[UIView setAnimationDelegate:self];
[UIView setAnimationDidStopSelector:#selector(hideModalEnded:finished:context:)];
modalView.center = offScreenCenter;
[UIView commitAnimations];
}
- (void) hideModalEnded:(NSString *)animationID finished:(NSNumber *)finished context:(void *)context {
UIView *modalView = (__bridge UIView *)context;
[modalView removeFromSuperview];
}