IOS开发笔记

- (CAAnimation *)animationRotate {     //    UIButton *theButton = sender;     // rotate animation     CATransform3D rotationTransform  = CATransform3DMakeRotation(M_PI, 0.5, -0.5,0.5);

已知图片保存到相册 UIImageWriteToSavedPhotosAlbum([UIImage imageNamed:photoName], self, @selector(image:didFinishSavingWithError:contextInfo:), nil); - (void)image:(UIImage *)image didFinis

在Iphone上有两种读取图片数据的简单方法: UIImageJPEGRepresentation  取UIImage的JPEG格式的NSData UIImagePNGRepresentation.  取UIImage的PNG格式的NSData UIImageJPEGRepresentation函数需要两个参数:图片的引用和压缩系数. 而UIImagePNGRepresentati

比如查看微信相关的app http://itunes.apple.com/search?term=微信&entity=software 查看某应用的版本等详细信息 http://itunes.apple.com/lookup?id=APP_ID 这样就可以判断最近版本来提示更新 所有的API The following are examples of fully-q

NSArray *array = [NSMutableArray arrayWithObjects:@"1",@"2",@"3",nil];          [array enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {         NSLog(@"index:%d   desc:%@",