I have a images sequence animated with :
UIImageView *imgView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, 120)];
[UIImage animatedImageNamed:#"spinner-" duration:1.0f];
imgView.contentMode = UIViewContentModeCenter;
imgView.animationRepeatCount = 1; // No effect
[self.view addSubView:imgView];
But the sequence keeps looping. Is there a way to control the repeat count (and keep displaying the last image) ?
In your case, using [UIImage animatedImageNamed:#"spinner-" duration:1.0f]; won't give you what you want.
For what you would like to achieve, I would recommend using UIImageView.
Usage:
First create an UIImageView object:
UIImageView *imageView = [[UIImageView alloc] initWithFrame:<FRAME_SIZE>];
Second, create an array that holds your images to be animated.
If you just have a few, do the following:
NSMutableArray *animatedImagesArray = [[NSMutableArray alloc] initWithObjects:[UIImage imageNamed:#"spinner-1.png"], [UIImage imageNamed:#"spinner-2.png"], nil];
If you have more, then you could load your images into the array like this:
for (int i = 0; i < <NUM_OF_IMAGE_COUNT>; i++)
{
[animatedImagesArray addObject:[UIImage imageNamed:[NSString stringWithFormat:#"spinner-%d%#", i, #".png"]]];
}
Once all that is done, then we configure the controls you want:
imageView.animationImages = animatedImagesArray;
imageView.animationDuration = 1.0f;
imageView.animationRepeatCount = 1.0f;
Then start animating it by:
[imageView startAnimating];
And stop the animation via:
[imageView stopAnimating];
If you would like the UIImageView to hold the last image after stopping, we would need to carry out the following before starting the animation:
imageView.image = [imageView.animationImages lastObject];
....
[imageView startAnimating];
Hope this helps.
You set the repeat count in the UIImageView object that displays your image.
UIImage *testImage = [UIImage animatedImageNamed:#"Box.jpg" duration:1.0f];
UIImageView *imgView = [[UIImageView alloc] initWithImage:testImage];
[imgView setAnimationRepeatCount:1];
Related
For starters I am trying to animate my main character of the game so I can later replace the images in the array with sprites -
Ive done this in my header file for my main character :
- (void)Animate;
And in my implementation file ive written :
-(void) Animate{
UIImage* img1 = [UIImage imageNamed:#"Obstacle.png"];
UIImage* img2 = [UIImage imageNamed:#"Obstacle02.png"];
UIImage* img3 = [UIImage imageNamed:#"Obstacle03.png"];
UIImage* img4 = [UIImage imageNamed:#"Obstacle04.png"];
NSArray *images = [NSArray arrayWithObjects:img1,img2,img3,img4, nil];
UIImageView* imageView = [[UIImageView alloc] initWithFrame:CGRectMake(0.0, 0.0, 160.0, 160.0)];
//images.name = #"animation";
[imageView setAnimationImages:images];
[imageView setAnimationRepeatCount:0];
[imageView setAnimationDuration:0.5];
//imageView.center = character.center ;
[imageView startAnimating];
// character used to be myView
// the images inside the array !
}
Take note I am using the game feature of Xcode .
So what am I not doing and how can I fix it ?
UIImage* img1 = [UIImage imageNamed:#"Obstacle"];
UIImage* img2 = [UIImage imageNamed:#"Obstacle02"];
UIImage* img3 = [UIImage imageNamed:#"Obstacle03"];
UIImage* img4 = [UIImage imageNamed:#"Obstacle04"];
NSArray *animateArray = [NSArray arrayWithObjects:img1,img2,img3,img4, nil];
self.imageView = [[UIImageView alloc]initWithFrame:CGRectMake(0, 0, 160, 160)];
self.imageView.animationImages = animateArray;
self.imageView.animationDuration = 3.0;
[self.imageView startAnimating];
self.imageView.animationRepeatCount = 0;
[self.view addSubview:self.imageView];
I am trying to center a UIImageView in a scroll view. Here is the code I tried with no results.
UIImageView *iv = [[UIImageView alloc] initWithImage:[UIImage imageNamed:kReceiptDetailScrollViewBackgroundCornered]];
[iv setContentMode:UIViewContentModeCenter];
[[self scrollView] insertSubview:iv atIndex:0];
Anybody know what's wrong with this?
You set the image view's content mode to center, which means that the image is not scaled and it can be larger than the image view that displays it.
UIImage *image = [UIImage imageNamed: kReceiptDetailScrollViewBackgroundCornered];
UIImageView *iv = [[UIImageView alloc] initWithImage: image];
iv.contentMode = UIViewContentModeScaleAspectFit;
iv.frame = [self scrollView].bounds;
[[self scrollView] addSubview: iv];
I need to change the pictures into animation video, but I don't known how to make a video, do not know to have what good method?
for example make your image names as xxxx-1.png, xxxx-2.png ...... xxxx-80.png. and paste the below code.. then the images will animate like video.
NSMutableArray* imgArray = [[NSMutableArray alloc] init];
for (int i=1; i <= 80; i++) {
[imgArray addObject:[UIImage imageNamed:[NSString stringWithFormat:#"xxxx-%d.png",i]]];
}
UIImageView* imgView = [UIImageView alloc] initWithFrame:(x,y,a,b)];
imgView.animationImages = imgArray;
imgView.animationDuration = 0.25;
imgView.animationRepeatCount = 0;
[imgView startAnimating];
[self.view addSubview:imgView];
[imgView release];
In my app, i have a little problem in memory issue.
My coding skill is not enough to perfect.
My code use memory four time that i really need.
How can i change my coding?
My Code is
-(void)viewDidAppear:(BOOL)animated
{
UIScrollView * ScrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 44, self.view.frame.size.width, self.view.frame.size.height-88)];// 44(UpperNavigtionBar),-88(Upper+Lower)
ScrollView.pagingEnabled = YES;
// Create a UIImage to hold Info.png
UIImage *image1 = [UIImage imageNamed:#"Image-001.jpg"];
UIImage *image2 = [UIImage imageNamed:#"Image-002.jpg"];
UIImage *image3 = [UIImage imageNamed:#"Image-003.jpg"];
UIImage *image4 = [UIImage imageNamed:#"Image-004.jpg"];
UIImage *image5 = [UIImage imageNamed:#"Image-005.jpg"];
UIImage *image6 = [UIImage imageNamed:#"Image-006.jpg"];
UIImage *image7 = [UIImage imageNamed:#"Image-007.jpg"];
UIImage *image8 = [UIImage imageNamed:#"Image-008.jpg"];
UIImage *image9 = [UIImage imageNamed:#"Image-009.jpg"];
UIImage *image10 = [UIImage imageNamed:#"Image-010.jpg"];
UIImage *image11 = [UIImage imageNamed:#"Image-011.jpg"];
UIImage *image12 = [UIImage imageNamed:#"Image-012.jpg"];
UIImage *image13 = [UIImage imageNamed:#"Image-013.jpg"];
NSArray *images = [[NSArray alloc] initWithObjects:image1,image2,image3,image4,image5,image6,image7,image8,image9,image10,image11,image12,image13,nil];
NSInteger numberOfViews = 13;
for (int i = 0; i < numberOfViews; i++)
{
CGFloat xOrigin = i * self.view.frame.size.width;
UIImageView * ImageView = [[UIImageView alloc] initWithFrame:CGRectMake(xOrigin, 0, self.view.frame.size.width, self.view.frame.size.height-88)]; // -88(Upper+Lower)
[ImageView setImage:[images objectAtIndex:i]];
[ScrollView addSubview:ImageView];
}
ScrollView.contentSize = CGSizeMake(self.view.frame.size.width*numberOfViews, self.view.frame.size.height-88); // -88(for adding Image View as subview)
[self.view addSubview:ScrollView];
}
There are several things you can do to limit your memory usage. First, you should fill your array with the names of the images, not the images themselves. Given the way your images are named, you should be able to do this in a loop. Second, when you load the image, use imageWithContentsOfFile: instead of imageNamed:. The latter method caches images, while the former doesn't. If you use imageNamed: the memory usage will continue to grow as you scroll through images (even with lazy loading) because of the caching -- at some point the system should purge the cache, which should keep your app from crashing, but I don't think it will keep the system for shutting down other programs that are in the background on a device.
I'm trying to create an animated UIImageView with certain image constraints.
I want the UIImageView animating at a size of 141x262, and not the entire screen. Currently I have this code:
CJ = [[UIImageView alloc] initWithFrame:self.view.frame];
CJ.animationImages = [NSArray arrayWithObjects:
[UIImage imageNamed:#"CJ_1.png"],
[UIImage imageNamed:#"CJ_2.png"],
[UIImage imageNamed:#"CJ_3.png"], nil];
CJ.animationDuration = 1;
CJ.animationRepeatCount = 0;
[CJ startAnimating];
[self.view addSubview:CJ];
Any and all help will be appreciated!
If you want the view to be a different size, set its frame to be that size:
CJ = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 141, 162)];
If your images are large, you probably also want to set a contentMode on your view. For example:
CJ.contentMode = UIViewContentModeScaleAspectFit;