its work fine when we write: UIImage *img=[UIImage imageNamed:@"ImageName"];
but when try to make uiimage from nsdata like:UIImage *img = [UIImage imageWithData:imageData]; now when we try to get cgimage from img in draw rect then it gives badAccess. if somebody know the exact way to write then please give me solution. i use CGImageRef sourceImageRef = [img CGImage]; in Draw Rect method of UIView.
尝试将UIImage
转换为CGImage
CGImage imageRef = imageObject.CGImage
您应该像这样使用alloc init:
UIImage* myImage = [[UIImage alloc] initWithCGImage:myCGImage];
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