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：
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//
// 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
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原文链接：http://blog.csdn.net/chaoyuan899/article/details/27563413