如何将FBProfilePictureView转换为UIImage？

Question

使用FBProfilePictureView一切正常,但我需要从FBProfilePictureView获取该图片并将其转换为UIImage.

我该怎么办？

我试过用这个:

UIGraphicsBeginImageContext(self.profilePictureView.frame.size);
[self.view.layer renderInContext:UIGraphicsGetCurrentContext()];
UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
self.TestPictureOutlet.image = viewImage;

但这对我的解决方案不起作用.

Answer 1

FBProfilePictureView是一个UIView,这个UIView包含一个UIImageView,即你的图像,你可以从那个UIImageView获取UIImage:

profilePictureView是一个FBProfilePictureView

UIImage *image = nil;

for (NSObject *obj in [profilePictureView subviews]) {
    if ([obj isMemberOfClass:[UIImageView class]]) {
        UIImageView *objImg = (UIImageView *)obj;
        image = objImg.image;
        break;
    }
}

编辑:更快地添加另一种方式,但做同样的事情

__block UIImage *image = nil;

[self.view.subviews enumerateObjectsUsingBlock:^(NSObject *obj, NSUInteger idx, BOOL *stop) {
    if ([obj isMemberOfClass:[UIImageView class]]) {
        UIImageView *objImg = (UIImageView *)obj;
        image = objImg.image;
        *stop = YES;
    }
}];