Getting Image from Facebook and display on Iphone

My app needs to get profile pic from Facebook (which I开发者_JS百科 have already done). But I am stuck at how to use it. The picture I get is in .jpg format. I want to assign it to an UIImage object and display it dynamically.

HOw should I do it? Any easy way? Thanks

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NSURL *url = [NSURL URLWithString: @"http://facebook.jpg"]; // facebook.jpg is the url of profile pic
UIImage *image = [UIImage imageWithData: [NSData dataWithContentsOfURL:url]];
[self.view addSubview:[[UIImageView alloc] initWithImage:image]]; //  or something similar

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Look at the UIImage class reference. There is a class function + (UIImage *)imageNamed:(NSString *)name

You can use UIImage *profilePicImage = [UIImage imageNamed:@"yourimage.jpg"];

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This assumes that you have the data contained in an NSData object I will call pictureData.

UIImage* profilePicture = [UIImage imageWithData:pictureData];
profilePictureView.image = profilePicture;

I prefer more deterministic memory allocation, however:

UIImage* profilePicture = [[UIImage alloc] initWithData:pictureData];
profilePictureView.image = profilePicture;
[profilePicture release];

If you have the picture on disk, one cool trick is to memory-map it to avoid memory allocation:

NSData* picData = [NSData alloc] initWithContentsOfMappedFile:@"profile.jpg"];
UIImage* profilePic = [[UIImage alloc initWithData:picData];
[picData release];
profilePicView.image = profilePic;
[profilePic release];