抠代码小记录

使用手势UIGestureRecognizer对图像进行缩放、移动、旋转操作
http://www.oschina.net/code/snippet_54100_8105

UIView背景的渐变
http://www.oschina.net/code/snippet_54100_8115

UITextFiled键盘遮挡问题
http://www.oschina.net/code/snippet_54100_8633

[self performSelector:@selector(stopProgress) withObject:self afterDelay:delay];

－－文件
http://blog.csdn.net/iphoneing/archive/2010/09/09/5872610.aspx
http://sdlqhjk.iteye.com/blog/899019
http://www.opensoce.com/?p=1298

//NSBundle，主要用于获取资源文件
NSString *filepath = [[NSBundle mainBundle] pathForResource:@"文件名"	ofType:@"后缀名"];

//写入一些程序运行时需要用得数据，里面写入得数据在程序退出后会没有
NSString *filepath = [NSTemporaryDirectory() stringByAppendingPathComponent: @"文件全名"];

－－UUID

	CFUUIDRef uuid = CFUUIDCreate(NULL);
	CFStringRef uuidStr = CFUUIDCreateString(NULL, uuid);
	
	NSString *result = [NSTemporaryDirectory() stringByAppendingPathComponent:[NSString stringWithFormat:@"%@-%@", prefix, uuidStr]];
	
	CFRelease(uuidStr);
	CFRelease(uuid);