Transitions allow you to apply effects to state view changes. Utilizing transitions is very simple. The prerequisite for transitions is that you have two or more states between which you want to apply the transition. Once you have the states defined, you next create the transitions you want to use.
You can create transitions using MXML or ActionScript. First we’ll look at how to create transitions using MXML. Then we’ll look at how to accomplish the same thing using ActionScript.
Creating Transitions with MXML
As shown in Chapter 12, all
applications and components have a
states property that you can use to define all
the states they use. Likewise, all applications and components have a
transitions property that is an array
of all the transitions you want to use. In MXML, you can define the
transitions property value using the
following code within an application or component root tag:
<mx:transitions> <!-- All transitions appear here. --> </mx:transitions>
All the elements of the
transitions array must be
Transition objects. In MXML, you create
Transition instances using the
Transition tag. All
Transition objects must define
toState properties, and these properties should be the names of the states
from and to which the transition should apply. For example, the
following code creates a transition from a state called A to a state
<mx:Transition fromState="A" toState="B" />
If you want to use a transition for all changes to or from a particular ...