Adding a new property to allow changing animation images globally.

Source/MMProgressHUD+Class.m

@@ -37,6 +37,10 @@ + (void)setDisplayStyle:(MMProgressHUDDisplayStyle)style {
     [hud setDisplayStyle:style];
 }
 
++ (void)setSpinAnimationImages:(NSArray *)animationImages {
+    [[MMProgressHUD sharedHUD] setSpinAnimationImages:animationImages];
+}
+
 //updates
 + (void)updateStatus:(NSString *)status {
     [MMProgressHUD updateTitle:nil status:status]; 

Source/MMProgressHUD.h

@@ -101,6 +101,12 @@ This message will be presented to the user when a cancelBlock is present after t
  */
 @property (nonatomic, strong) UIImage *successImage;
 
+/** The array of images to be used for pending. Persistent across show calls.
+
+ The image size is currently fixed to 100x100. The image will scale to fit if the image is larger than 100x100, otherwise it will remain centered.
+ */
+@property (nonatomic, strong) NSArray *spinAnimationImages;
+
 /** A block to be executed when the progress fed to the HUD reaches 100%.
 
  This block will also fire when the progress exceeds 100%. This block was designed to be used by setting up your completion call before calling show: on the HUD, then simply feed progress updates to the HUD via the updateProgress: methods. When progress reaches 100%, this block is automatically fired. This block is automatically released after firing and is guaranteed to only fire once.
@@ -506,6 +512,12 @@ This message will be presented to the user when a cancelBlock is present after t
  */
 + (void)setDisplayStyle:(MMProgressHUDDisplayStyle)displayStyle;
 
+/** Sets the animation images of the current shared instance.
+
+ @param animationImages UIImages to set animation of HUD.
+ */
++ (void)setSpinAnimationImages:(NSArray *)animationImages;
+
 @end
 
 @interface MMProgressHUD (Deprecated)

Source/MMProgressHUD.m

@@ -103,6 +103,12 @@ - (void)showWithTitle:(NSString *)title
     else if (images.count > 0) {
         self.animationImages = images;
     }
+    else if (self.spinAnimationImages.count == 1) {
+        self.image = self.spinAnimationImages[0];
+    }
+    else if (self.spinAnimationImages.count > 0) {
+        self.animationImages = self.spinAnimationImages;
+    }
 
     self.cancelBlock = cancelBlock;
     self.title = title;