Implementation of UIView Animation in iPhone Development

IPhone DevelopmentAboutUIView AnimationThe implementation effect is the content to be introduced in this article, mainly to learnUIView AnimationFor a series of implementation results, let's take a look at how this article is implemented. It was previously influenced by a seriesUIView AnimationThis is the only way to write:

Set delegate in an animation, and then call another function in the delegate function.

Today, I decided to check for missing iPhone cookbook code and found the code:

C code

 
 

  
  
// Hide the bar button and show the view   
  
  
self.navigationItem.rightBarButtonItem = nil;   
  
  
[self.view viewWithTag:101].alpha = 1.0f;   
  
  
 
  
  
// Bounce to 115% of the normal size   
  
  
[UIView beginAnimations:nil context:UIGraphicsGetCurrentContext()];   
  
  
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];   
  
  
[UIView setAnimationDuration:0.4f];   
  
  
[self.view viewWithTag:101].transform = CGAffineTransformMakeScale(1.15f, 1.15f);   
  
  
[UIView commitModalAnimations];   
  
  
 
  
  
// Return back to 100%   
  
  
[UIView beginAnimations:nil context:UIGraphicsGetCurrentContext()];   
  
  
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];   
  
  
[UIView setAnimationDuration:0.3f];   
  
  
[self.view viewWithTag:101].transform = CGAffineTransformMakeScale(1.0f, 1.0f);   
  
  
[UIView commitModalAnimations];   
  
  
 
  
  
// Pause for a second and appreciate the presentation   
  
  
[NSThread sleepUntilDate:[NSDate dateWithTimeIntervalSinceNow:1.0f]];   
  
  
 
  
  
// Slowly zoom back down and hide the view   
  
  
[UIView beginAnimations:nil context:UIGraphicsGetCurrentContext()];   
  
  
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];   
  
  
[UIView setAnimationDuration:1.0f];   
  
  
[self.view viewWithTag:101].transform = CGAffineTransformMakeScale(0.01f, 0.01f);   
  
  
[UIView commitModalAnimations];   
  
  
 
  
  
// Restore the bar button   
  
  
[self.view viewWithTag:101].alpha = 0.0f;  
 
 

Tnnd can be written in this way.

Learn new things at the same time.

C code

 
 

  
  
[NSThread sleepUntilDate:[NSDate dateWithTimeIntervalSinceNow:1.0f]];  
 
 

PS. In the past, this example was called Modal View Animation. The iPhone had no idea about this for so long.

Sorry, I got it wrong. It turned out to be the method implemented by the author.

C code

 
 

  
  
commitModalAnimations  
 
 

The specific code implementation is like this.

Java code

 
 

  
  
@interface UIViewDelegate : NSObject   
  
  
{   
  
  
CFRunLoopRef currentLoop;   
  
  
}   
  
  
@end   
  
  
 
  
  
@implementation UIViewDelegate   
  
  
-(id) initWithRunLoop: (CFRunLoopRef)runLoop   
  
  
{   
  
  
if (self = [super init]) currentLoop = runLoop;   
  
  
return self;   
  
  
}   
  
  
 
  
  
-(void) animationFinished: (id) sender   
  
  
{   
  
  
CFRunLoopStop(currentLoop);   
  
  
}   
  
  
@end   
  
  
 
  
  
@implementation UIView (ModalAnimationHelper)   
  
  
+ (void) commitModalAnimations   
  
  
{   
  
  
CFRunLoopRef currentLoop = CFRunLoopGetCurrent();   
  
  
 
  
  
UIViewDelegate *uivdelegate = [[UIViewDelegate alloc] initWithRunLoop:currentLoop];   
  
  
[UIView setAnimationDelegate:uivdelegate];   
  
  
[UIView setAnimationDidStopSelector:@selector(animationFinished:)];   
  
  
[UIView commitAnimations];   
  
  
CFRunLoopRun();   
  
  
[uivdelegate release];   
  
  
}   
  
  
@end 
 
 

Summary:IPhone DevelopmentAboutUIView AnimationThe content of the implementation effect is introduced. I hope this article will help you!