小代码

1.增加一个旋转动画

UIImage *loadImage = [UIImageimageNamed:@"detailLoad.png"];

UIImageView *loadImageView = [[[UIImageViewalloc]initWithImage:loadImage ]autorelease];

loadImageView.backgroundColor = [UIColorclearColor];

loadImageView.center =self.view.center;

loadImageView.tag =kLoadImageView;

//imageview旋转动画

CAKeyframeAnimation *theAnimation = [CAKeyframeAnimationanimation];

theAnimation.values = [NSArrayarrayWithObjects:

[NSValuevalueWithCATransform3D:CATransform3DMakeRotation(0,0,0,1)],

[NSValuevalueWithCATransform3D:CATransform3DMakeRotation(3.13,0,0,1)],

[NSValuevalueWithCATransform3D:CATransform3DMakeRotation(6.26,0,0,1)],

nil];

theAnimation.cumulative =YES;

theAnimation.removedOnCompletion =YES;

theAnimation.repeatCount =HUGE_VALF;

[theAnimation setSpeed:.15];

[loadImageView.layeraddAnimation:theAnimationforKey:@"transform"];

[self.viewaddSubview:loadImageView];

2.图片自动放大缩小

UIImage *infoImage = [UIImageimageNamed:@"detail_info_btn.png"];

UIButton *infoButton = [[UIButtonalloc] initWithFrame:CGRectMake(0,0, infoImage.size.width, infoImage.size.height)];

[infoButton setTag:kInfoButtonTag];

[infoButtonsetImage:infoImageforState:UIControlStateNormal];

[infoButtonaddTarget:selfaction:@selector(infoButtonClicked)forControlEvents:UIControlEventTouchUpInside];

[selfaddSubview:infoButton];

[infoButton release];

//变大缩小动画

CAKeyframeAnimation* bob = [CAKeyframeAnimationanimationWithKeyPath:@"transform"];

CATransform3D r[3] = {CATransform3DMakeScale(1.0,1.0,1),

CATransform3DMakeScale(1.2,1.2,1)};

bob.values = [NSArrayarrayWithObjects:[NSValuevalueWithCATransform3D:r[0]],

[NSValuevalueWithCATransform3D:r[1]],[NSValuevalueWithCATransform3D:r[0]],nil];

bob.repeatCount =HUGE_VAL;

bob.duration =1.75;

bob.timingFunction = [CAMediaTimingFunctionfunctionWithName:kCAMediaTimingFunctionLinear];

[infoButton.layer addAnimation:bobforKey:nil];

3.截取当前屏幕作为 一张图

//开始截图

UIGraphicsBeginImageContext(self.view.bounds.size);

[self.view.layerrenderInContext:UIGraphicsGetCurrentContext()];

UIImage *img =UIGraphicsGetImageFromCurrentImageContext();

UIGraphicsEndImageContext();

4.让view 以任意方式 push出来

- (void)contentViewAniamted:(NSString *)subtype :(UIView *)currentView{

CATransition *animation = [CATransitionanimation];

animation.duration =.3;

animation.timingFunction =UIViewAnimationCurveEaseInOut;

animation.fillMode = kCAFillModeForwards;//必须设定不然不生效

animation.type = kCATransitionPush;

animation.subtype = subtype;

[currentView.layer addAnimation:animationforKey:@"animation"];

[self.viewaddSubview:currentView];

}

- (void)show

{

LeftView *currentLeft = [[[LeftViewalloc]initWithFrame:CGRectMake(0,0,600,566) ]autorelease];

currentLeft.center =self.view.center;

[selfcontentViewAniamted:kCATransitionFromTop :currentLeft];

// [self makeZSViewControllerInVisible:currentLeft];

[self.view addSubview:currentLeft];

}

5.图片以中心点 放大

//执行动画

[UIView beginAnimations:@""context:@""];

[UIView setAnimationDuration:1.0f];

[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];

self.bigImageView.frame =CGRectMake(self.bigImageView.frame.origin.x - bigImage.size.width/2 ,self.bigImageView.frame.origin.y - bigImage.size.height/2, bigImage.size.width, bigImage.size.height);

[UIViewcommitAnimations];

6.让两个viewController以动画形式翻出

CATransition *transition = [CATransitionanimation];

transition.duration =1;

transition.timingFunction = [CAMediaTimingFunctionfunctionWithName:kCAMediaTimingFunctionEaseInEaseOut];

transition.type =kCATransitionPush;

transition.subtype =kCATransitionFromLeft;

transition.delegate =self;

[self.navigationController.view.layeraddAnimation:transitionforKey:nil];

[self.navigationControllerpopViewControllerAnimated:NO];

7.当键盘出现时 控制view的移动

//通过键盘出现或者消失来控制view上移

//通过键盘出现或者消失来控制view上移

NSNotificationCenter *center = [NSNotificationCenterdefaultCenter];

[center addObserver:selfselector:@selector(keyboardWillShow:) name:UIKeyboardWillShowNotificationobject:nil];

[center addObserver:selfselector:@selector(keyboardWillHide:) name:UIKeyboardWillHideNotificationobject:nil];

-(void)keyboardWillShow:(NSNotification *)note

{

if (self.contentView.frame.origin.y <0)return;

[UIViewanimateWithDuration:.4

animations:^(void) {

self.contentView.center =CGPointMake(self.contentView.center.x,self.contentView.center.y -300);

}];

}

-(void)keyboardWillHide:(NSNotification *)note

{

if (self.contentView.frame.origin.y ==0)return;

[UIViewanimateWithDuration:.4

animations:^(void) {

self.contentView.center =CGPointMake(self.contentView.center.x,self.contentView.center.y +300);

}];

}

8.把字符串 存储到一个文件里

NSArray *paths =NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,

NSUserDomainMask,

YES);

NSString *basePath = ([paths count] > 0) ? [paths objectAtIndex:0] :nil;

NSString *contentJsonPath = [basePathstringByAppendingPathComponent:@"content_.json"];

NSString *thumsPath = [basePath stringByAppendingPathComponent:@"thumbs.png"];

NSString *imgPath = [basePathstringByAppendingPathComponent:@"img.png"];

//将json文件保存起来

NSAutoreleasePool *pool = [[NSAutoreleasePoolalloc] init];

[contentJsonwriteToFile:contentJsonPath atomically:YESencoding:NSUTF8StringEncodingerror:NULL];

[thumbs writeToFile:thumsPath atomically:YES];

[img writeToFile:imgPath atomically:YES];

[pool drain];