_imageView = [[RFGravatarImageView alloc] initWithFrame:self.view.bounds];
[_imageView setEmail:@"[email protected]"];
[_imageView setSize:1024];

[self.view addSubview:_imageView];

[_imageView loadGravatar];

// I suppose you could use an NSDictionary for this, but I was lazy - feel free to add.

// User email - you must set this!
@property (readwrite, strong, nonatomic) NSString *email;

// A placeholder image while SDWebImage fetches the gravatar.
@property (readwrite, strong, nonatomic) UIImage *placeholder;

// The size of the gravatar up to 2048. All gravatars are squares, so you will get 2048x2048.
@property (readwrite, nonatomic) NSUInteger size;

// Rating (G, PG, R, X) of gravatar to allow, helpful for kid-friendly apps.
@property (readwrite, nonatomic) GravatarRatings rating;

// If email doesn't have a gravatar, use one of these... http://bit.ly/1cCmtdb
@property (readwrite, nonatomic) DefaultGravatars defaultGravatar;

// Force a default gravatar, whether or not email has gravatar. Remember to set defaultGravatar too!
@property (readwrite, nonatomic) BOOL forceDefault;

// Another option to init with a placeholder, so you don't have to do [_imageView setPlaceholder:].
- (id)initWithFrame:(CGRect)frame andPlaceholder:(UIImage*)placeholder;

// A substitute to having to do [_imageView setForceDefault:YES]; and setting the default gravatar.
- (void)forceDefault:(BOOL)forceDefault withDefaultGravatar:(DefaultGravatars)gravatar;

// Actually loads the gravatar AFTER you have configured all of your options.
- (void)loadGravatar;

// Load gravatar with completion block
- (void)loadGravatar:(void (^)(void))completed;

// Refreshes the gravatar, you can set new paramters between loading it and refreshing it.
- (void)refreshGravatar;