Initializes the animator object with a cubic Bézier timing curve.
- iOS 10.0+
- tvOS 10.0+
The duration of the animation, in seconds.
The first control point for the cubic Bézier timing curve.
The second control point for the cubic Bézier timing curve.
The block containing the animations. This block has no return value and takes no parameters. Use this block to modify any animatable view properties. When you start the animations, those properties are animated from their current values to the new values using the specified animation parameters.
An initialized animator object or
nil if the object could not be created.
Use this method to create an animator object using a cubic timing curve whose starting point is (0, 0) and whose end point is (1, 1). The
point2 parameters are the control points that define the shape of the resulting Bezier curve. The slope of the curve defines the speed of the animation at different times. Steep slopes cause animations to appear to run faster and shallower slopes cause them to appear to run slower. Figure 1 shows a timing curve where the animations start fast and finish fast but run more slowly through the middle section.