IOS 动画实例详解
iOS动画的实现方式多种多样，这里就只记录一下 beginAnimations:context 。
在你调用 beginAnimations:context:方法来启动一个动画后,动画并不会立即被执行,直 到你调用 UIView 类的 commitAnimations 类方法。你对一个视图对象执行的介于 beginAnimations:context:方法跟 commitAnimations方法之间的操作(例如移动)会在 commitAnimations 被执行后才会生效 。
实现效果图：
代码很简单，直接贴了，如下：
//
// ViewController.m
// Graphics
//
// Created by aaron on 14b-5-29.
// Copyright (c) 2014年 The Technology Studio. All rights reserved.
//
#import "ViewController.h"
@interface ViewController ()
@property(nonatomic,strong) UIImageView *imageView1;
@property(nonatomic,strong) UIImageView *imageView2;
@end
@implementation ViewController
- (void)viewDidLoad
{
[super viewDidLoad];
UIImage *image = [UIImage imageNamed:@"1.png"];
self.imageView1 = [[UIImageView alloc] initWithImage:image];
self.imageView2 = [[UIImageView alloc] initWithImage:image];
[self.imageView1 setFrame:CGRectMake(0.0f,
0.0f,
100.0f,
100.0f)];
[self.imageView2 setFrame:CGRectMake(220.0f,
350.0f,
100.0f,
100.0f)];
[self.view addSubview:self.imageView1];
[self.view addSubview:self.imageView2];
// [self startTopLeftImageViewAnimation];
// [self startBottomRightViewAnimationAfterDelay:2];
[self affineTransformScaleAnimation];
[self affineTransformRotateAnimation];
}
//imageView2 animation
-(void)startTopLeftImageViewAnimation{
[self.imageView1 setFrame:CGRectMake(0.0f,
0.0f,
100.0f,
100.0f)];
[self.imageView1 setAlpha:1.0f];
[UIView beginAnimations:@"imageView1Animation" context:(__bridge void*)self.imageView1];
[UIView setAnimationDuration:3.0f];
[UIView setAnimationDelegate:self];
[UIView setAnimationDidStopSelector:@selector(imageViewDidStop:finished:context:)];
[self.imageView1 setFrame:CGRectMake(220.0f, 350.0f, 100.0f, 100.0f)];
[self.imageView1 setAlpha:0.0f];
[UIView commitAnimations];
}
-(void)imageViewDidStop:(NSString*)paramAnimationID finished:(NSNumber*)paramFinished context:(void*)paramContext{
NSLog(@"AnimationID = %@\n",paramAnimationID);
UIImageView *contextImageView = (__bridge UIImageView *)(paramContext);
NSLog(@"contextImageView = %@",contextImageView);
[contextImageView removeFromSuperview];
}
//imageView2 animation
-(void)startBottomRightViewAnimationAfterDelay:(CGFloat)paramDelay{
[self.imageView2 setFrame:CGRectMake(220.0f,
350.0f,
100.0f,
100.0f)];
[self.imageView2 setAlpha:1.0f];
[UIView beginAnimations:@"imageView2Animation" context:(__bridge voidvoid *)(self.imageView2)];
[UIView setAnimationDuration:3.0f];
[UIView setAnimationDelay:paramDelay];
[UIView setAnimationDelegate:self];
[UIView setAnimationDidStopSelector:@selector(imageViewDidStop:finished:context:)];
[self.imageView2 setFrame:CGRectMake(0.0f, 0.0f, 100.0f, 100.0f)];
[self.imageView2 setAlpha:0.0f];
[UIView commitAnimations];
}
//imageView1 AffineTransformScale animation
-(void)affineTransformScaleAnimation{
self.imageView1.center = self.view.center;
self.imageView1.transform = CGAffineTransformIdentity;
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:5.0f];
self.imageView1.transform = CGAffineTransformMakeScale(2.0f, 2.0f);
[self.imageView1 setAlpha:0.0f];
[UIView commitAnimations];
}
//imageView2 AffineTransformRotate animation
-(void)affineTransformRotateAnimation{
self.imageView2.center = self.view.center;
[UIView beginAnimations:@"clockwiseAnimation" context:NULL];
[UIView setAnimationDuration:5.0f];
[UIView setAnimationDelegate:self];
[UIView setAnimationDidStopSelector:@selector(clockwiseRotationStopped:finished:context:)];
self.imageView2.transform = CGAffineTransformMakeRotation(90.0f*M_PI/180.f);
[UIView commitAnimations];
}
-(void)clockwiseRotationStopped:(NSString*)paramAnimationID finished:(NSNumber*)paramFinished context:(void*)paramContext{
[UIView beginAnimations:@"counterclockwiseAnimation" context:NULL];
[UIView setAnimationDuration:5.0f];
self.imageView2.transform = CGAffineTransformIdentity;
[UIView commitAnimations];
}
@end
以上就是关于IOS动画开发的实例，本站对于IOS 开发还有很多教程，大家可以搜索查阅！
