Make selectNextField public, and hook up the keyboard Next button.

BSKeyboardControls/BSKeyboardControls.h

@@ -99,6 +99,11 @@ typedef NS_ENUM(NSUInteger, BSKeyboardControlsDirection)
  */
 - (id)initWithFields:(NSArray *)fields;
 
+/**
+  Makes the next field the first responder.
+ */
+- (void)selectNextField;
+
 @end
 
 @protocol BSKeyboardControlsDelegate <NSObject>

Example/Example/ViewController.m

@@ -81,6 +81,12 @@ - (void)textFieldDidBeginEditing:(UITextField *)textField
     [self.keyboardControls setActiveField:textField];
 }
 
+- (BOOL)textFieldShouldReturn:(UITextField *)textField
+{
+    [self.keyboardControls selectNextField];
+    return YES;
+}
+
 #pragma mark -
 #pragma mark Text View Delegate