Code example for CycleInterpolator

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					Log.v(DROPTAG, "drag started in dropTarget");
		            break; 
				case DragEvent.ACTION_DRAG_ENTERED:
					Log.v(DROPTAG, "drag entered dropTarget");
				    anim = ObjectAnimator.ofFloat((Object)v, "alpha", 1f, 0.5f);
				    anim.setInterpolator(new CycleInterpolator(40));
				    anim.setDuration(30*1000); // 30 seconds
				    anim.start();
		            break; 
				case DragEvent.ACTION_DRAG_EXITED:
					Log.v(DROPTAG, "drag exited dropTarget");
					if(anim != null) {
						anim.end();
						anim = null;
					} 
		            break; 
				case DragEvent.ACTION_DRAG_LOCATION:
					Log.v(DROPTAG, "drag proceeding in dropTarget: " +
							event.getX() + ", " + event.getY());
		            break; 
				case DragEvent.ACTION_DROP: