You can join two objects with a curved, straight, or right-angle connection line. If you move one or more connected objects, they remain joined by the line. This is especially useful if you’re creating a flowchart.
Before you do this task, add two or more objects to the slide that you want to connect.
Go to the Keynote app on your iPad.
Open a presentation with two objects.
Select the two objects, then tap in the toolbar.
From the Basic category, tap the curved line to add it to the slide.
Do any of the following:
Change the curved line to a straight or right-angle connecting line: Tap the line to select it, tap , tap the Style tab, tap Connection, then tap an option.
Adjust the space between line endpoints and their connected shapes: Tap the line to select it, tap , tap the Style tab, tap Connection, then drag the Outset sliders.
Change the position of the angles or the curve: Drag the green dot (you may need to make the line longer to see it).
You can change the look of the connection line by changing its thickness, color, line style, and endpoints, and by adding effects like a shadow and reflection.