我正在尝试合并四个图像,使其成为一个uiimage。但是当我要做CFRelease时,它正在崩溃。如果我不这样做,那么它会导致内存泄漏并崩溃。怎么能解决这个问题?
请参阅下面的代码。
referenceView.frame = CGRectMake(0, 0, 1024, 768);
referenceView.hidden = NO;
[self.view insertSubview:referenceView belowSubview:selfView];
imgView1.image = delegate.imageCroped;
imgView2.image = [UIImage imageNamed:@"videobg.png"];
imgView3.image = [UIImage imageNamed:@"videochar.png"];;
imgView4.image = smileView.image;
imgView1.frame = CGRectMake(456, 311, delegate.imageCroped.size.width-30.8, delegate.imageCroped.size.height-40);
imgView2.frame = CGRectMake(0, 0, 1024, 768);
imgView3.frame = CGRectMake(392, 187, imgView3.image.size.width, imgView3.image.size.height);
imgView4.frame = CGRectMake((smileView.frame.origin.x-((smileView.frame.origin.x > 530) ? 30 : 15)), (smileView.frame.origin.y+((smileView.frame.origin.y <= 307) ? 95 : 50)), smileView.frame.size.width, smileView.frame.size.height);
[referenceView addSubview:imgView1];
[referenceView addSubview:imgView2];
[referenceView addSubview:imgView3];
[referenceView addSubview:imgView4];
UIGraphicsBeginImageContext(referenceView.bounds.size);
[referenceView.layer renderInContext:UIGraphicsGetCurrentContext()];
CGImageRef finalImage = ( CGImageRef)(UIGraphicsGetImageFromCurrentImageContext());
UIGraphicsEndImageContext();
[referenceView removeFromSuperview];
[imgView1 removeFromSuperview];
[imgView2 removeFromSuperview];
[imgView3 removeFromSuperview];
[imgView4 removeFromSuperview];
UIImage *resizedImage = [UIImage imageWithCGImage:finalImage];
CFRelease(finalImage);
return resizedImage;
}
@catch (NSException *exception) {
}
我收到以下错误。我该如何解决这个问题?我的项目在ARC。
* - [UIImage _cfTypeID]:发送到解除分配的实例0x1e88dce0的消息
答案 0 :(得分:1)
UIGraphicsGetImageFromCurrentImageContext()
返回UIImage *,而不是CGImageRef。并且您没有拥有生成的UIImage,因此您不想释放它(或CFRelease()它。)
尝试:
UIImage *finalImage = UIGraphicsGetImageFromCurrentImageContext();
代替。