Simple steps to use scrollview with autolayout.

• Create a new project with single view application
• Select the default viewcontroller and change its screen size to iPhone-4inch from attributes inspector.
• Add a scrollview to your viewcontroller’s view as follows and set background color to blue

• Add constraints on it as shown in below image

What this will do is,simply stick every edge of scrollview to viewcontroller’s view

Scenario 1:

Now lets say our content is huge,and we want it to scroll horizontally as well as vertically.

For this,

• Add a UIView to the scrollview of frame(0,0,700,700).Lets give it orange background color to identify it differently.

Next comes the important part,we need it to scroll horizontally and vertically.

• Select the orange view and add the following constraints

Let me explain what we did in above step.

• We fixed the height and width to 700.
• We set trailing space to scrollview = 0 which tells the scrollview that content is horizontally scrollable.
• We set bottom space to scrollview = 0 which tells the scrollview that content is vertically scrollable.