ios 长按“录音”按钮的波纹动画

该功能为项目中的需求。现在时间空闲一点。记录一下！
话不多说，看代码！
声明文件

#import 
 @interface YHRippleLayer : UIView
 @property (nonatomic, strong) UIView                         *container;
 @property (nonatomic, strong) UIView                         *bgViewView;

  - (void)show;
  - (void)dismiss;
  @end

实现文件

#import "YHRippleLayer.h"

@interface YHRippleLayer ()
@property (nonatomic, strong) NSTimer *rippleTimer;
@property (nonatomic, strong) UIImageView *voiceIV;

@end

@implementation YHRippleLayer

-(instancetype)init{
     self = [super init];
    if(self) {
    self.frame = [UIScreen mainScreen].bounds;
    self.backgroundColor = [UIColor colorWithRed:0 green:0 blue:0 alpha:0.618];
    [self addGestureRecognizer:[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleGuesture:)]];
    
    
    _bgViewView = [[UIView alloc] initWithFrame:CGRectMake(0, [UIScreen mainScreen].bounds.size.height-400, [UIScreen mainScreen].bounds.size.width, 400)];
    _bgViewView.backgroundColor = [UIColor whiteColor];
    [self addSubview:_bgViewView];
    
    self.voiceIV=[[UIImageView alloc] init];
    _voiceIV.tag=500;
    [_voiceIV setFrame:CGRectMake(([UIScreen mainScreen].bounds.size.width-58)/2.0, (400-58)/2.0, 58, 58)];
    [_voiceIV setImage:[UIImage imageNamed:@"组 1 拷贝"]];
    _voiceIV.userInteractionEnabled = YES;
    UILongPressGestureRecognizer *longPress =[[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(onBtnLongPressed:)];
    [_voiceIV addGestureRecognizer:longPress];
    [_bgViewView addSubview:_voiceIV];
}

   return self;
}

  #pragma mark - action
 - (void)onBtnLongPressed:(UILongPressGestureRecognizer   *)longGesture{

  if (longGesture.state==UIGestureRecognizerStateBegan) {
    // 打开动画
    [self showWithRipple];
   
   }else if(longGesture.state == UIGestureRecognizerStateEnded){
    // 关闭动画
    [self closeRippleTimer];
   
}
}

- (void)handleGuesture:(UITapGestureRecognizer *)sender {

       [self dismiss];
 }

 - (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event {
UIView *hitView = [super hitTest:point withEvent:event];
if(hitView == self){
    if(hitView.backgroundColor == [UIColor clearColor]) {
        return nil;
    }
}
return hitView;
}

 #pragma mark - 动画效果

 - (void)showWithRipple
{
self.rippleTimer = [NSTimer timerWithTimeInterval:0.5 target:self selector:@selector(addRippleLayer) userInfo:nil repeats:YES];
[[NSRunLoop currentRunLoop] addTimer:_rippleTimer forMode:NSRunLoopCommonModes];
}

 - (CGRect)makeEndRect
{
CGRect endRect = CGRectMake(_voiceIV.frame.origin.x, _voiceIV.frame.origin.y, 58, 58);
endRect = CGRectInset(endRect, -50, -50);
return endRect;
  }

 - (void)addRippleLayer
 {

CAShapeLayer *rippleLayer = [[CAShapeLayer alloc] init];
rippleLayer.position = CGPointMake(150, 150);
rippleLayer.bounds = CGRectMake(0, 0, 300, 300);
rippleLayer.backgroundColor = [UIColor clearColor].CGColor;

UIBezierPath *path = [UIBezierPath bezierPathWithOvalInRect:CGRectMake(_voiceIV.frame.origin.x, _voiceIV.frame.origin.y, 58, 58)];
rippleLayer.path = path.CGPath;
rippleLayer.strokeColor = [UIColor blueColor].CGColor;
rippleLayer.lineWidth = 5;
[rippleLayer setFillColor:[UIColor clearColor].CGColor];
[_bgViewView.layer insertSublayer:rippleLayer below:_voiceIV.layer];

//addRippleAnimation
UIBezierPath *beginPath = [UIBezierPath bezierPathWithOvalInRect:CGRectMake(_voiceIV.frame.origin.x, _voiceIV.frame.origin.y, 58, 58)];
CGRect endRect = CGRectInset([self makeEndRect], -50, -50);
UIBezierPath *endPath = [UIBezierPath bezierPathWithOvalInRect:endRect];

rippleLayer.path = endPath.CGPath;
rippleLayer.opacity = 0.0;

CABasicAnimation *rippleAnimation = [CABasicAnimation animationWithKeyPath:@"path"];
rippleAnimation.fromValue = (__bridge id _Nullable)(beginPath.CGPath);
rippleAnimation.toValue = (__bridge id _Nullable)(endPath.CGPath);
rippleAnimation.duration = 1.8;

CABasicAnimation *opacityAnimation = [CABasicAnimation animationWithKeyPath:@"opacity"];
opacityAnimation.fromValue = [NSNumber numberWithFloat:1.0];
opacityAnimation.toValue = [NSNumber numberWithFloat:0.0];
opacityAnimation.duration = 1.8;

[rippleLayer addAnimation:opacityAnimation forKey:@""];
[rippleLayer addAnimation:rippleAnimation forKey:@""];

[self performSelector:@selector(removeRippleLayer:) withObject:rippleLayer afterDelay:1.8];
}

  - (void)removeRippleLayer:(CAShapeLayer *)rippleLayer
 {
[rippleLayer removeFromSuperlayer];
rippleLayer = nil;
 }

  - (void)closeRippleTimer
 {
if (_rippleTimer) {
    if ([_rippleTimer isValid]) {
        [_rippleTimer invalidate];
    }
    _rippleTimer = nil;
}
 }
  - (void)show {
UIWindow *window = [[[UIApplication sharedApplication] delegate] window];
[window addSubview:self];

self.bgViewView.transform = CGAffineTransformMakeTranslation(0.01, 209);
[UIView animateWithDuration:0.3 animations:^{
    self.bgViewView.transform = CGAffineTransformMakeTranslation(0.01, 0.01);
}];

  }

   - (void)dismiss {

[UIView animateWithDuration:0.3 animations:^{
    self.bgViewView.transform = CGAffineTransformMakeTranslation(0.01, 209);
    self.alpha = 0;
} completion:^(BOOL finished) {
    [self removeFromSuperview];
    [self.bgViewView removeFromSuperview];
}];

 }

@end

使用方法

#import "ViewController.h"
#import "YHRippleLayer.h"

 @interface ViewController ()

 @property (nonatomic , strong) YHRippleLayer *layerView;

  @end

  @implementation ViewController

- (void)viewDidLoad {
      [super viewDidLoad];


    UIButton *btn = [UIButton buttonWithType:UIButtonTypeCustom];
    btn.frame = CGRectMake(150, 300, 75, 30);
    btn.layer.borderWidth = 2.0;
    btn.layer.borderColor = [UIColor cyanColor].CGColor;
    [btn setTitle:@"录音" forState:UIControlStateNormal];
    [btn setTitleColor:[UIColor orangeColor] forState:UIControlStateNormal];
    [btn addTarget:self action:@selector(showRippleLayer) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview:btn];

}

-(void)showRippleLayer{

    _layerView = [YHRippleLayer new];

 [_layerView show];
}


@end

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