缩小UIScrollView

Question

I want help with my UIScrollView:

I have implemented my UIScrollView in my project and everything works fine but I have problems when Im trying to implement zoom, but this is not as the zoom when we are looking a picture. I am trying to zoom out. My app begins as this graphic when it launches. Lets suppose that I have a UIView in the screen which is bigger than my screen.

--------------------------------------------
|         |                      |         |
|         |                      |         |
|    -----|----------------------|---------|
|    |    |                      |         |<---------UIView
|    |    |                      |<------------------ iPhone Screen frame
|    |    |                      |         |
|    -----|----------------------|---------|
|         |                      |         |
|         |                      |         |<-------- ScrollView Content size
|         |                      |         |
|         |                      |         |
|         |                      |<----------------- ScrollView Frame Size
|         |                      |         |
|         |                      |         |      
|         |                      |         |
|         |                      |         |
|         |                      |         |
|         ------------------------         |
|                                          |
|                                          |
|                                          |
--------------------------------------------

And I want my screen look like this when I zoom out.

          ------------------------
          |                      |         
          |    ------------------|         
UIView-------->|                 |         
          |    |                 |         
          |    ------------------|
          |                      |         
          |                      |         
          |                      |         
          |                      |
          |                      |         
          |                      |         
          |                      |
          |                      |         
          |                      |               
          |                      |         
          |                      |         
          |                      |         
          ------------------------ 

How can I do it?

Answer 1

Set scrollView.minimumZoomScale = 0 then you can zoom out as much as you want. If you don't want to zoom out too much, give it a reasonable value.