How to add animated gif file as a default image for UIButton.
I have added gif file as button image. But it is not animating.
Thanks.
Animated GIF won't animate in iphone.. You should add a UIImageView as subview to UIButton, extract all images from your GIF and animate using UIImageView Animation
UIImageView* animatedImageView = [[UIImageView alloc] initWithFrame:self.view.bounds];
animatedImageView.animationImages = [NSArray arrayWithObjects:
[UIImage imageNamed:#"image1.gif"],
[UIImage imageNamed:#"image2.gif"],
[UIImage imageNamed:#"image3.gif"],
[UIImage imageNamed:#"image4.gif"], nil];
animatedImageView.animationDuration = 1.0f;
animatedImageView.animationRepeatCount = 0;
[animatedImageView startAnimating];
[yourButton addSubview: animatedImageView];
You can not just load a gif file. Save every frame of the gif to a separate image file (png or similar) - you can do that with photoshop for example, then load them into a UIImage using animationImages and do a startAnimating.
In iOS .gif file format is not supported. so avoid using .gif files in iOS
You should explore alternatives to using UIButton for that, since it does not allow for such customization. E.g., you could use UIImageView` for your button and set an action for the "touch end" event.
Related
I intend to make a splash screen on iOS consists of a person, a chair objects. Each of these objects has seperated aspects like the hands, head, body and feets that animated together. I wonder which is better way to go? Importing a GIF file or coding CALayer objects then adding animation?
You can't use GIF files or any code for animation for your launchscreen (splash screen), you can only use a static image, a PNG or JPG (if the launchscreen is a storyboard).
So, if you want your app's startup with some animation then you should manage it in your first view controller.
You can animate imageview with image sets like,
UIImageView* myImageViewForAnimation = [[UIImageView alloc] initWithFrame:self.view.bounds];
myImageViewForAnimation.animationImages = [NSArray arrayWithObjects:
[UIImage imageNamed:#"image1"],
[UIImage imageNamed:#"image2"],
[UIImage imageNamed:#"image3"],
[UIImage imageNamed:#"image4"], nil];
myImageViewForAnimation.animationDuration = 1.0f;
myImageViewForAnimation.animationRepeatCount = 0;
[myImageViewForAnimation startAnimating];
[self.view addSubview: myImageViewForAnimation];
Update (as asked in comment) :
You can get your view on which you have added gesture recognizer in your action method or you can set tag to every imageview and handle it in action method.
For example,
-(void)tapOnProfileImage : (UITapGestureRecognizer*)recog{
UIImageView *tempView = (UIImageView *)recog.view;
// or
if (recog.view.tag == 1) {
// image 1
}
if (recog.view.tag == 2) {
//image 2
}
}
So, on every image view, you should add target with selector - tapOnProfileImage and you can differentiate it as mentioned in above code snippet!
You can use gif image but not directly on launch xib. You create one view controller and load gif image on that view controller, once animation is completed then remove this controller from navigation stack. https://github.com/Flipboard/FLAnimatedImage use this gif image view control.
I am setting images to a UIImage programmatically. But I want to also add a play button over that view. Think of Facebook in how there is a play button over the image. That is exactly what I am trying to figure out on what to do. Here is my setting of the UIImage:
UIImage *img = [UIImage imageNamed:[NSString stringWithFormat:#"%d.jpg", indexPath.row]];
cell.photoView.image = img;
Suggestions, thoughts?
You can add playbutton either as a UIButton or a UIImageView and add as a subview to your photoview.
[cell.photoView addSubview:urPlayButtonView];
Can anyone help me understand how I apply a background image object to a UIView please?
I have created a background image which is a blurred version of a background and I would like to apply it to be the background of a uiView in the foreground which would ideally mask the background image.
I have the following code so far -
_blurImage = [source stackBlur:50];
[_HPBlurView.backgroundColor = [UIColor colorWithPatternImage:[_blurImage]]];
I would like to apply the image object(_blurImage) to be the background image of _hpBlurView but i'm struggling to get it working!
At first glance, you are using too many brackets. Here is a working version of your code :
_burImage = [source stackBlur:50];
_HPBlurImage.backgroundColor = [UIColor colorWithPatternImage:_blurImage];
I can't see what stackBlur:50 returns. So start from the beginning. colorWithPatternImag takes UIImage as a parameter. So Start by adding a picture, any picture, to your application. Lets imagine that the image is called image.png. This is one way to do it:
UIImage *image = [UIImage imageNamed:#"image.png"];
_HPBlurView.backgroundColor = [UIColor colorWithPatternImage:image];
This should help to get you going.
Create an image and add to the background.:
UIImage *image = [UIImage imageNamed:#"youimage"];
self.view.backgroundColor = [UIColor colorWithPatternImage:image];
It's that.
To make sure everything resizes properly, no matter rotation, device size and iOS version, I just set an UIImageView
//Create UIImageView
UIImageView *backgroundImageView = [[UIImageView alloc] initWithFrame:self.view.frame]; //or in your case you should use your _blurView
backgroundImageView.image = [UIImage imageNamed:#"image.png"];
//set it as a subview
[self.view addSubview:backgoundImageView]; //in your case, again, use _blurView
//just in case
[self.view sendSubviewToBack:backgroundImageView];
I have a high resolution image and I want to use it as a background for a view. But when I add it either via an Interface Builder or programatically I see only its part.This doesn't help:
UIImage* _backGround = [UIImage imageNamed:#"background-clean#2x.png"];
CGRect _viewFrame = self.view.frame;
[_backGround drawInRect:_viewFrame];
UIImageView* _backGroundView = [[UIImageView alloc] initWithImage:_backGround];
[self.view addSubview:_backGroundView];
[self.view sendSubviewToBack:_backGroundView];
And this too:
_backGroundView.contentMode =UIViewContentModeScaleAspectFit;
So the question how can I scale this image in order it fits in the view in a full size in spite of its size?
P.S. Sorry for my bad English.
I agree with Ali, when creating retina-sized images you should also scale them and add their smaller version to your project. With both versions you can simply specify the full name of the image without the #2x.png or .png extension.
But, to fix your implementation you only need one extra line of code:
UIImage* _backGround = [UIImage imageNamed:#"background-clean"];
UIImageView* _backGroundView = [[UIImageView alloc] initWithImage:_backGround];
_backGroundView.frame = self.view.frame;
[self.view addSubview:_backGroundView];
[self.view sendSubviewToBack:_backGroundView];
Once you change the frame of the UIImageView, its contents (i.e. your image) will scale as well.
You must not include #2x in your code when referencing the name of the image!
You should:
Include both files Background.png and Background#2x.png in your Xcode projet resources, Background#2x.png being twice the size (in pixels) of Background.png
But always refer to this file (for example in imageNamed:) as #"Background.png" or even just #"Background": [UIImage imageNamed:#"Background"]
Then iOS will do its magic all by itself, choosing the right image between Background.png or Background#2x.png depending on if the device screen is Retina or not.
For more info see here in Apple documentation.
[self.view setBackgroundColor:[UIColor colorWithPatternImage:[UIImage imageNamed:#"background-clean"]]];
I couldn't find anything on how you can center the 'image' when you use (maybe you can't):
[self setBackgroundColor:[UIColor colorWithPatternImage:[UIImage imageNamed:#"background"]]];
Setting my [self setContentMode:UIContentModeCenter]; doesnt help.
Do I have to manually draw the image (either in drawRect or set the content of the CALayer? Which one if preferable?
I think you're on the wrong path here: you create a UIColor from a pattern (pattern already implies this is a repeating image). All in all- you can't have your pattern not repeat and centered.
If you just want simple image as background of your UIView, just add it as a subview and center it.
UIImage* img = [UIImage imageNamed:#"yourfile.png"];
UIImageView* imgView = [[UIImageView alloc]initWithImage: img];
[yourUIView addSubview: imgView];
imgView.center = CGPointMake(yourUIView.frame.size.width/2, yourUIView.frame.size.height/2);
Now - add more subviews to your "yourUIView" view and they'll show on top of the image - thus the image becoming the background.
So... no need to draw anything yourself.