NSImage with URL - why doesn't it work?
NSImage with URL - why doesn't it work?
- Subject: NSImage with URL - why doesn't it work?
- From: Yuhui <email@hidden>
- Date: Sun, 2 Sep 2001 12:42:39 -0500
Hi
I use the following code to get an NSImage from a JPEG file on the Web:
NSImage *myImage;
myImage = [[NSImage alloc] initWithContentsOfURL:[NSURL
URLWithString:@"
http://www.wisc.edu/wiscinfo/images/bascom.jpg";]];
if (myImage == nil)
NSLog(@"nil");
However, myImage always returns 'nil', even though the URL is valid. I
tested this with other images, e.g.
http://images.amazon.com/images/P/6303407188.01.MZZZZZZZ.jpg, and
myImage came back 'nil' as well.
On the other hand, when I tested with a JPEG in my app's build folder,
e.g.
myImage = [[NSImage alloc] initWithContentsOfFile:@"47.jpg"];
if (myImage == nil)
NSLog(@"nil");
myImage would display the correct image. I changed my JPEG's file name
to 4.7.jpg to test if NSImage was confused by file extensions, but the
image displayed correctly too, so I know that my problem has nothing to
do with the presence of extra periods in the file name.
I use the [NSURL URLWIthString:] method for HTML files e.g.
NSString *myString;
myString = [[NSString alloc] initWithContentsOfURL:[NSURL
URLWithString:@"
http://www.apple.com/";]];
and my app would get the HTML file correctly, i.e. I can save myString
to a text file and it'll contain the exact contents of the HTML file at
www.apple.com.
Does anyone know what's wrong with my NSImage code?
Thanks
Yuhui