UIImageView截取区域图片

- (void)loadView {
    [[UIApplication sharedApplication] setStatusBarHidden:YES withAnimation: UIStatusBarAnimationSlide];
    UIImage *image=[UIImage imageNamed:@"1.jpg"];
   
   
    CGRect rect = CGRectMake(60, 80, 331, 353);//创建矩形框
    UIImageView *contentView = [[UIImageView alloc] initWithFrame:rect];
    contentView.image=[UIImage imageWithCGImage:CGImageCreateWithImageInRect([image CGImage], rect)];
   
    self.view=[[UIView alloc] initWithFrame:[[UIScreen mainScreen] applicationFrame]];
    [self.view addSubview:contentView];
   
    [image release];
}