iOS仿AirPods弹出动画
本文实例为大家分享了iOS仿AirPods弹出动画的具体代码,供大家参考,具体内容如下
效果图
预览图
思路
在当前ViewController下Present另外一个AnimationViewController,在弹出的AnimationViewController中播放动画,弹出的时候原来的ViewController上有一个全屏覆盖的maskView,在弹出时,有一个渐变动画(页面渐黑),在AnimationViewController声明一个代理,在代理方法中实现收起的动画效果(dissmissController和maskView消失)
主要代码
HCAirPodsAnimationViewController *vc = [[HCAirPodsAnimationViewController alloc] init]; vc.delegate = self; vc.modalPresentationStyle = UIModalPresentationOverCurrentContext; [UIView animateWithDuration:0.2 animations:^{ self.maskBgView.alpha = 0.5; } completion:nil]; [self presentViewController:vc animated:YES completion:^{ [vc.animationView play]; }];
模态跳转的style有一个枚举值,在iOS13以前modalPresentationStyle的默认值为UIModalPresentationFullScreen,iOS13以后变成了UIModalPresentationPageSheet,在这里我们把style设置为UIModalPresentationOverCurrentContext弹出的这个控制器就会覆盖在原来的控制器之上
- (UIView *)maskBgView { if (!_maskBgView) { _maskBgView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, [UIScreen mainScreen].bounds.size.width, [UIScreen mainScreen].bounds.size.height)]; _maskBgView.backgroundColor = [UIColor blackColor]; _maskBgView.alpha = 0; [self.view addSubview:_maskBgView]; } return _maskBgView; }
一个覆盖全屏的maskView采用懒加载的方式实现
- (void)initContentView { CGFloat containerW = SCREEN_WIDTH - 20; CGFloat containerH = containerW * 0.9; UIView *containerView = [[UIView alloc] initWithFrame:CGRectMake(10, SCREEN_HEIGHT - containerH - 10, containerW, containerH)]; containerView.layer.cornerRadius = 20; containerView.backgroundColor = [UIColor whiteColor]; [self.view addSubview:containerView]; self.animationView = [[LOTAnimationView alloc] initWithFrame:CGRectMake(70, 70, containerW - 140, containerH - 140)]; [containerView addSubview:self.animationView]; self.animationView.animation = @"gift_animation"; self.animationView.loopAnimation = YES; UIButton *confirmButton = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 200, 34)]; confirmButton.center = CGPointMake(self.animationView.center.x, containerH - 44); [confirmButton setTitle:@"Close" forState:UIControlStateNormal]; [confirmButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal]; [confirmButton setBackgroundColor:[UIColor blueColor]]; confirmButton.layer.cornerRadius = 10; [confirmButton addTarget:self action:@selector(onConfirmButtonClick) forControlEvents:UIControlEventTouchUpInside]; [containerView addSubview:confirmButton]; }
动画这里用到的是Lottie这个动画开源库(Airbnb),这个开源库主要的功能是可以将After Effects制作的动画通过插件导出为json格式的文件,然后通过这个开源库解析成动画。
- (void)onConfirmButtonClick { if ([self.delegate respondsToSelector:@selector(onAirPodsAnimationViewControllerConfirmButtonClick:)]) { [self dismissViewControllerAnimated:YES completion:nil]; [self.delegate onAirPodsAnimationViewControllerConfirmButtonClick:self]; } }
dissmiss当前的控制器,让viewController来实现这个代理方法,并且在代理方法中隐藏maskView
- (void)onAirPodsAnimationViewControllerConfirmButtonClick:(HCAirPodsAnimationViewController *)vc { [UIView animateWithDuration:0.2 animations:^{ self.maskBgView.alpha = 0.0; } completion:nil]; }
项目地址:AirPodsAnimation
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持我们。
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