| Paket | mx.states |
| Klass | public class Transition |
| Arv | Transition  Object |
| Språkversion: | ActionScript 3.0 |
| Produktversion: | Flex 3 |
| Körningsmiljöversioner: | Flash Player 9, AIR 1.1 |
To define a transition, you set the transitions property of an Application
to an Array of Transition objects.
You use the toState and fromState properties of
the Transition class to specify the state changes that trigger the transition.
By default, both the fromState and toState properties
are set to "*", meaning apply the transition to any changes to the view state.
You can use the fromState property to explicitly specify a
view state that your are changing from, and the toState property
to explicitly specify a view state that you are changing to.
If a state change matches two transitions, the toState property
takes precedence over the fromState property. If more than one
transition match, Flex uses the first definition in the transition array.
You use the effect property to specify the Effect object to play
when you apply the transition. Typically, this is a composite effect object,
such as the Parallel or Sequence effect, that contains multiple effects,
as the following example shows:
<mx:Transition id="myTransition" fromState="*" toState="*">
<mx:Parallel>
...
</mx:Parallel>
</mx:Transition>
MXML-syntax
Visa MXML-syntax
Dölj MXML-syntaxThe <mx:Transition> tag
defines the following attributes:
<mx:Transition
Properties
id="ID"
effect=""
fromState="*"
toState="*"
autoReverse="false"
/>
MXML-standardegenskapeffect
Fler exempel
Defining transitions
Transition tips and troubleshooting
Example: Creating a transition effect
Relaterade API-element
mx.effects.RemoveChildAction
mx.effects.SetPropertyAction
mx.effects.SetStyleAction
| Egenskap | Definieras med | ||
|---|---|---|---|
| autoReverse : Boolean = false
Set to true to specify that this transition applies
to both the forward and reverse view state changes. | Transition | ||
 | constructor : Object
En referens till klassobjektet eller konstruktorfunktionen för en given objektinstans. | Object | |
| effect : IEffect
The IEffect object to play when you apply the transition. | Transition | ||
| fromState : String = "*"
A String specifying the view state that your are changing from when
you apply the transition. | Transition | ||
| interruptionBehavior : String = "end"
Flex does not support the playing of multiple transitions simultaneously. | Transition | ||
| toState : String = "*"
A String specifying the view state that you are changing to when
you apply the transition. | Transition | ||
| Metod | Definieras med | ||
|---|---|---|---|
Constructor. | Transition | ||
|
Anger om det finns en egenskap angiven för ett objekt. | Object | |
|
Anger om en instans av klassen Object finns i prototypkedjan för objektet som anges som parameter. | Object | |
|
Anger om den angivna egenskapen finns och är uppräkningsbar. | Object | |
|
Anger tillgänglighet för en dynamisk egenskap för slingåtgärder. | Object | |
|
Returnerar det här objektets strängrepresentation, formaterad i enlighet med språkspecifika konventioner. | Object | |
|
Returnerar det angivna objektets strängbeteckning. | Object | |
|
Returnerar det angivna objektets primitiva värde. | Object | |
autoReverse | egenskap |
public var autoReverse:Boolean = false| Språkversion: | ActionScript 3.0 |
| Produktversion: | Flex 3 |
| Körningsmiljöversioner: | Flash Player 9, AIR 1.1 |
Set to true to specify that this transition applies
to both the forward and reverse view state changes.
Therefore, use this transition on a change from view state A to
view state B, and on the change from B to A.
While the transition from view state A to view state B is playing,
the reverse transition can occur to interrupt the current transition.
The reverse transition always halts the current transition at
its current location.
That is, the reverse transition always plays as if
the interruptionBehavior property was set to stop,
regardless of the real value of interruptionBehavior.
This property is only checked when the new transition is going in the exact opposite direction of the currently playing one. That is, if a transition is playing between states A and B and then a transition to return to A is started.
If a transition uses the toState and fromState
properties to explicitly handle the transition from view state B to A,
then Flex ignores the autoReverse property.
Standardvärdet är false.
Relaterade API-element
effect | egenskap |
public var effect:IEffect| Språkversion: | ActionScript 3.0 |
| Produktversion: | Flex 3 |
| Körningsmiljöversioner: | Flash Player 9, AIR 1.1 |
The IEffect object to play when you apply the transition. Typically, this is a composite effect object, such as the Parallel or Sequence effect, that contains multiple effects.
The effect property is the default property of the
Transition class. You can omit the <mx:effect> tag
if you use MXML tag syntax.
fromState | egenskap |
public var fromState:String = "*"| Språkversion: | ActionScript 3.0 |
| Produktversion: | Flex 3 |
| Körningsmiljöversioner: | Flash Player 9, AIR 1.1 |
A String specifying the view state that your are changing from when you apply the transition. The default value is "*", meaning any view state.
You can set this property to an empty string, "", which corresponds to the base view state.
Standardvärdet är "*".
interruptionBehavior | egenskap |
public var interruptionBehavior:String = "end"| Språkversion: | ActionScript 3.0 |
| Produktversion: | Flex 4.5 |
| Körningsmiljöversioner: | Flash Player 10.2, AIR 2.5 |
Flex does not support the playing of multiple transitions simultaneously. If a transition is currently playing when a new transition occurs, the current transition is interrupted. This property controls how the current transition behaves when interrupted.
By default, the current transition ends, which snaps all effects in
the transition to their end values.
This corresponds to a property value of end.
If the value of this property is stop, the current transition
halts at its current location.
The new transition start playing from the halt location of
the previous transition.
The value of stop can smooth out the appearance of an
interrupted transition.
That is because the user does not see the current transition snap
to its end state before the new transition begins.
In some cases, the interrupting transition can be the reverse of
the current transition.
For example, while the transition from view state A to view state B
is playing, the reverse transition occurs to interrupt the current transition.
If you set the autoReverse property of a transition instance
to true, you can use the same transition to handle both
the forward and reverse transitions.
When the interrupting transition is the reverse transition of the
current transition and has autoReverse set to true,
the interrupting transition runs as if the
interruptionBehavior property was set to stop,
regardless of the real value of interruptionBehavior.
The mx.states.InterruptionBehavior class defines the possible values for this property.
Standardvärdet är end.
Relaterade API-element
toState | egenskap |
public var toState:String = "*"| Språkversion: | ActionScript 3.0 |
| Produktversion: | Flex 3 |
| Körningsmiljöversioner: | Flash Player 9, AIR 1.1 |
A String specifying the view state that you are changing to when you apply the transition. The default value is "*", meaning any view state.
You can set this property to an empty string, "", which corresponds to the base view state.
Standardvärdet är "*".
Transition | () | Konstruktor |
public function Transition()| Språkversion: | ActionScript 3.0 |
| Produktversion: | Flex 3 |
| Körningsmiljöversioner: | Flash Player 9, AIR 1.1 |
Constructor.
<?xml version="1.0" ?>
<!-- Simple example to demonstrate the Transition class. -->
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx" currentState="Login">
<!-- Define the view states -->
<s:states>
<s:State name="Login" />
<s:State name="Register" />
</s:states>
<s:transitions>
<!-- Define the transition from the base state to the Register state.-->
<s:Transition id="toRegister" fromState="*" toState="Register">
<s:Sequence targets="{[loginPanel, registerLink, confirm, loginLink]}">
<s:RemoveAction />
<s:Fade />
<s:SetAction target="{loginPanel}" property="title" />
<s:SetAction target="{loginButton}" property="label" />
<s:SetAction target="{loginButton}" property="color" />
<s:Resize target="{loginPanel}"/>
<s:AddAction />
<s:Fade />
</s:Sequence>
</s:Transition>
<!-- Define the transition from the Register state to the base state.-->
<s:Transition id="toDefault" fromState="Register" toState="*">
<s:Sequence targets="{[loginPanel, registerLink,
confirm, loginLink]}">
<s:RemoveAction/>
<s:SetAction target="{loginPanel}" property="title"/>
<s:SetAction target="{loginButton}" property="label"/>
<s:SetAction target="{loginButton}" property="color"/>
<s:Resize target="{loginPanel}"/>
<s:AddAction/>
</s:Sequence>
</s:Transition>
</s:transitions>
<!-- Define a Panel container that defines the login form. The title of the Panel
changes depending on the state. -->
<s:Panel title="Login" title.Register="Register" id="loginPanel"
width="75%" horizontalCenter="0" verticalCenter="0">
<s:controlBarLayout >
<s:BasicLayout />
</s:controlBarLayout>
<s:layout>
<s:VerticalLayout paddingTop="10" paddingBottom="10" paddingRight="10" paddingLeft="10" />
</s:layout>
<s:Label color="blue" width="100%"
text="Click the 'Need to Register?' link to change state. Click the 'Return to Login' link to return to the base state."/>
<!-- The following form has two TextInputs in the Login state and three TextInputs
in the Register state. -->
<s:Form id="loginForm" >
<s:FormItem label="Username:">
<s:TextInput/>
</s:FormItem>
<s:FormItem label="Password:">
<s:TextInput/>
</s:FormItem>
<s:FormItem id="confirm" label="Confirm:" includeIn="Register" includeInLayout="false" includeInLayout.Register="true">
<s:TextInput/>
</s:FormItem>
</s:Form>
<!-- The controlBar includes two visible items in each state. Which LinkButton is visible is determined
by the state -->
<s:controlBarContent>
<mx:LinkButton id="registerLink" label="Need to Register?" top="10" bottom="10"
click="currentState='Register'" left="10" includeIn="Login" />
<mx:LinkButton id="loginLink" label="Return to Login" click="currentState=''" includeIn="Register" left="10" top="10" bottom="10"/>
<s:Button label="Login" label.Register="Register" id="loginButton" right="10" color.Register="0x0000FF" top="10" bottom="10"/>
</s:controlBarContent>
</s:Panel>
</s:Application>
Tue Jun 12 2018, 01:40 PM Z