// 创建UIImage对象

UIImage *image = [UIImage imageNamed:@"sample.png"];

// 创建UIImageView

UIImageView *imageView = [ [ UIImageView alloc ] initWithFrame:CGRectMake(0.0, 0.0, image.size.width, image.size.height) ];

imageView.image = image;

[self addSubview:imageView];

// 旋转

CGAffineTransform rotate = CGAffineTransformMakeRotation( 1.0 / 180.0 * 3.14 );

[imageView setTransform:rotate];