1.初始化CAReplicatorLayer對象

• 初始化復(fù)制層,設(shè)置位置,尺寸,顏色大小

  //1.初始化復(fù)制層
  CAReplicatorLayer *replicatorLayer = [CAReplicatorLayer layer];
  replicatorLayer.bounds = CGRectMake(0, 0, 200, 200);
  replicatorLayer.backgroundColor = [UIColor grayColor].CGColor;
  [self.view.layer addSublayer:replicatorLayer];
  

• 創(chuàng)建原生圖層,設(shè)置基本單位圖層的大小,尺寸,顏色等

      //初始化原生子層
  CALayer *layer = [CALayer layer];
  layer.bounds = CGRectMake(0, 0, 10, 10);
  layer.cornerRadius = 5;
  layer.position = CGPointMake(100, 20);
  layer.backgroundColor = [UIColor blackColor].CGColor;
  [replicatorLayer addSublayer:layer];
  

Snip20160312_13.png

• 給原生層添加動畫

      //給原生子層添加動畫
          CABasicAnimation *basic = [CABasicAnimation animation];
          basic.keyPath = @"transform.scale";
          basic.repeatCount = MAXFLOAT;//設(shè)置重復(fù)次數(shù)
          basic.autoreverses = YES;//設(shè)置動畫的反彈效果
          basic.fromValue = @1;
          basic.toValue = @0.1;
          //動畫時長
          CGFloat duration = 1;
          basic.duration = duration;
          [layer addAnimation:basic forKey:nil];
  

• 設(shè)置復(fù)制層的子層數(shù)量,子層的形變位置等

      //子層數(shù)
          float count = 30;
          replicatorLayer.instanceCount = count;
          //一個單位圖層動畫時長為1 ,(從大到小,從小到大,2個階段) ,延遲子層的延遲時間 = 動畫總時長 / 總個數(shù) * 2個階段
          replicatorLayer.instanceDelay = duration / count * 2;
          replicatorLayer.instanceTransform = CATransform3DRotate(layer.transform, 2 * M_PI / count, 0, 0, 1);
  

Snip20160312_14.png