首頁(yè) 猿問(wèn) 如何實(shí)現(xiàn)圖片的3D旋轉(zhuǎn)，而且是不停旋轉(zhuǎn)？

如何實(shí)現(xiàn)圖片的3D旋轉(zhuǎn)，而且是不停旋轉(zhuǎn)？

JavaScript

牛魔王的故事 2019-04-19 16:29:44

我的代碼是這樣的：//ViewController.m//核心動(dòng)畫(huà)#import"ViewController.h"@interfaceViewController()@property(weak,nonatomic)IBOutletUIImageView*imageView;@end@implementationViewController-(void)viewDidLoad{[superviewDidLoad];}-(void)touchesBegan:(NSSet*)toucheswithEvent:(UIEvent*)event{[UIViewanimateWithDuration:3animations:^{self.imageView.layer.transform=CATransform3DMakeRotation(M_PI,0,1,1);}];}-(void)didReceiveMemoryWarning{[superdidReceiveMemoryWarning];}@end但是這樣做旋轉(zhuǎn)了一次就不在旋轉(zhuǎn)了。請(qǐng)問(wèn)如何實(shí)現(xiàn)不停的旋轉(zhuǎn)呢？（按照Y軸）

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2 回答

慕哥6287543

TA貢獻(xiàn)1831條經(jīng)驗(yàn) 獲得超10個(gè)贊

[UIViewanimateWithDuration:3delay:0options:UIViewAnimationOptionRepeatanimations:^{}completion:^(BOOLfinished){}];

反對(duì) 回復(fù) 2019-04-19

尚方寶劍之說(shuō)

TA貢獻(xiàn)1788條經(jīng)驗(yàn) 獲得超4個(gè)贊

LZ的代碼,并不是按照Y找轉(zhuǎn),Y,Z同時(shí)都會(huì)動(dòng),按Y軸循環(huán)轉(zhuǎn)動(dòng),有以下兩種方法可供參考,推薦第一種方法,過(guò)渡更平滑,自然.方法一:CABasicAnimation*rotationAnimation;rotationAnimation=[CABasicAnimationanimationWithKeyPath:@"transform.rotation.y"];rotationAnimation.toValue=[NSNumbernumberWithFloat:M_PI*2.0];rotationAnimation.duration=3;rotationAnimation.cumulative=YES;rotationAnimation.repeatCount=MAXFLOAT;[self.imageView.layeraddAnimation:rotationAnimationforKey:@"rotationAnimation"];方法二:[UIViewanimateWithDuration:3delay:0options:UIViewAnimationOptionRepeatanimations:^{self.imageView.layer.transform=CATransform3DMakeRotation(M_PI,0,1,0);}completion:^(BOOLfinished){self.imageView.layer.transform=CATransform3DMakeRotation(M_PI,0,1,0);}];