Added an method for adding any view to any other parent view with attributes. Closes issue #18.

README.md

@@ -141,6 +141,7 @@ Run `rake`. You should now see the simulator open with your home screen and a na
 
 * Added `open_split_screen` for iPad-supported apps (thanks @rheoli for your contributions to this)
 * `ProMotion::AppDelegateParent` renamed to `ProMotion::Delegate` (`AppDelegateParent` is an alias)
+* Added `add_to` method for adding views to any parent view. `remove` works with this normally.
 
 # Usage
 
@@ -329,6 +330,8 @@ Any view item (UIView, UIButton, custom UIView subclasses, etc) can be added to
 `add` accepts a second argument which is a hash of attributes that get applied to the element before it is
 dropped into the view.
 
+`add(view, attr={})`
+
 ```ruby
 @label = add UILabel.alloc.initWithFrame(CGRectMake(5, 5, 20, 20)), {
   text: "This is awesome!",
@@ -342,12 +345,24 @@ dropped into the view.
 
 The `set_attributes` method is identical to add except that it does not add it to the current view.
 
+`set_attributes(view, attr={})`
+
 ```ruby
 @element = set_attributes UIView.alloc.initWithFrame(CGRectMake(0, 0, 20, 20)), {
   backgroundColor: UIColor.whiteColor
 }
 ```
 
+You can use `add_to` to add a view to any other view, not just the main view.
+
+`add_to(parent_view, new_view, attr={})`
+
+```ruby
+add_to @some_parent_view, UIView.alloc.initWithFrame(CGRectMake(0, 0, 20, 20)), {
+  backgroundColor: UIColor.whiteColor
+}
+```
+
 ## Table Screens
 
 You can create sectioned table screens easily with TableScreen, SectionedTableScreen, and GroupedTableScreen.

lib/ProMotion/screen_helpers/screen_elements.rb

@@ -2,22 +2,24 @@ module ProMotion
   module ScreenElements
     include ProMotion::ViewHelper
 
-    def add(v, attrs = {})
-      if attrs && attrs.length > 0
-        set_attributes(v, attrs)
-      end
-      self.view.addSubview(v)
-      v
+    def add(element, attrs = {})
+      add_to self.view, element, attrs
     end
     alias :add_element :add
     alias :add_view :add
 
-    def remove(v)
-      v.removeFromSuperview
-      v = nil
+    def remove(element)
+      element.removeFromSuperview
+      element = nil
     end
     alias :remove_element :remove
     alias :remove_view :remove
+    
+    def add_to(parent_element, element, attrs = {})
+      set_attributes(element, attrs) if attrs && attrs.length > 0
+      parent_element.addSubview element
+      element
+    end
 
     def bounds
       return self.view.bounds

spec/screen_helpers_spec.rb

@@ -24,6 +24,18 @@ describe "screen helpers" do
       @screen.view.subviews.count.should == 0
     end
 
+    it "should add a subview to another element" do
+      sub_subview = UIView.alloc.initWithFrame CGRectZero
+      @screen.add_to @subview, sub_subview
+      @subview.subviews.include?(sub_subview).should == true
+    end
+
+    it "should add a subview to another element with attributes" do
+      sub_subview = UIView.alloc.initWithFrame CGRectZero
+      @screen.add_to @subview, sub_subview, { backgroundColor: UIColor.redColor }
+      @subview.subviews.last.backgroundColor.should == UIColor.redColor
+    end
+
   end