//創建復制層-(void)createRepl{ //復制層 CAReplicatorLayer * repL = [CAReplicatorLayer layer]; repL.frame = self.contentV.bounds; //復制6份 repL.instanceCount = 6; //形變，每一個形變都是相對于上一個復制出來的子層開始的 repL.instanceTransform = CATransform3DMakeTranslation(45, 0, 0); //動畫延時執行 repL.instanceDelay = 0.5; ///要設置復制層的顏色 原始層的顏色要設為白色. repL.instanceColor = [UIColor redColor].CGColor; [self.contentV.layer addSublayer:repL]; self.repL = repL;}

//// ViewController.m// 03_UIView75_音樂震動條//// Created by 杞文明 on 17/7/21.// Copyright © 2017年 杞文明. All rights reserved.//#import "ViewController.h"@interface ViewController ()@property (weak, nonatomic) IBOutlet UIView *contentV;@property (weak,nonatomic) CAReplicatorLayer * repL;@property (weak,nonatomic) CALayer * layer;@end@implementation ViewController- (void)viewDidLoad { [super viewDidLoad]; //1.創建復制層次 [self createRepl]; //2.添加音量震動條 [self addVoiceBar]; //3.添加動畫 [self addAnimation];}//創建復制層-(void)createRepl{ //復制層 CAReplicatorLayer * repL = [CAReplicatorLayer layer]; repL.frame = self.contentV.bounds; //復制6份 repL.instanceCount = 6; //形變，每一個形變都是相對于上一個復制出來的子層開始的 repL.instanceTransform = CATransform3DMakeTranslation(45, 0, 0); //動畫延時執行 repL.instanceDelay = 0.5; ///要設置復制層的顏色 原始層的顏色要設為白色. repL.instanceColor = [UIColor redColor].CGColor; [self.contentV.layer addSublayer:repL]; self.repL = repL;}//添加音量震動條-(void)addVoiceBar{ CALayer * layer = [CALayer layer]; layer.frame = CGRectMake(0, self.contentV.bounds.size.height-150, 30, 150); layer.backgroundColor = [UIColor whiteColor].CGColor; layer.position = CGPointMake(0, self.contentV.bounds.size.height); layer.anchorPoint = CGPointMake(0, 1); [self.repL addSublayer:layer]; self.layer = layer;}//添加動畫-(void)addAnimation{ //添加動畫 對y方向縮放 CABasicAnimation * anim = [CABasicAnimation animation]; //設置屬性 anim.keyPath = @"transform.scale.y"; anim.toValue = @0; anim.repeatCount = MAXFLOAT; anim.autoreverses = YES; anim.duration = 0.5; [self.layer addAnimation:anim forKey:nil];}@end