一，效果圖。

二，代碼。

ViewController.m

#import "ViewController.h"@interface ViewController ()@end@implementation ViewController- (void)viewDidLoad {[super viewDidLoad];// Do any additional setup after loading the view, typically from a nib.UIButton *button=[UIButton buttonWithType:UIButtonTypeRoundedRect];button.frame=CGRectMake(10, 100, 100, 200);button.backgroundColor=[UIColor redColor];[button setTitle:@"按鈕" forState:UIControlStateNormal];[self.view addSubview:button];//按鈕的動畫效果[self buttonAnimation:button];}//按鈕出現的時候有一個動畫效果 - (void)buttonAnimation:(UIButton *)sender {CAKeyframeAnimation *animation = [CAKeyframeAnimation animationWithKeyPath:@"transform"];CATransform3D scale1 = CATransform3DMakeScale(0.5, 0.5, 1);CATransform3D scale2 = CATransform3DMakeScale(1.2, 1.2, 1);CATransform3D scale3 = CATransform3DMakeScale(0.9, 0.9, 1);CATransform3D scale4 = CATransform3DMakeScale(1.0, 1.0, 1);NSArray *frameValues = [NSArray arrayWithObjects:[NSValue valueWithCATransform3D:scale1],[NSValue valueWithCATransform3D:scale2],[NSValue valueWithCATransform3D:scale3],[NSValue valueWithCATransform3D:scale4],nil];[animation setValues:frameValues];NSArray *frameTimes = [NSArray arrayWithObjects:[NSNumber numberWithFloat:0.0],[NSNumber numberWithFloat:0.5],[NSNumber numberWithFloat:0.9],[NSNumber numberWithFloat:1.0],nil];[animation setKeyTimes:frameTimes];animation.fillMode = kCAFillModeForwards;animation.duration = 0.3f;[sender.layer addAnimation:animation forKey:@"DSPopUpAnimation"]; }

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轉載于:https://www.cnblogs.com/yang-guang-girl/p/5759795.html

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