COSTouchVisualizer 介绍
COSTouchVisualizer 可对你的触摸操作进行可视化展示，支持 iPhone 和 iPad
使用方法：
#import <COSTouchVisualizerWindow.h>
...
// Add this method to your AppDelegate method
- (COSTouchVisualizerWindow *)window
{
static COSTouchVisualizerWindow *customWindow = nil;
if (!customWindow) customWindow = [[COSTouchVisualizerWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
return customWindow;
}