Flex :: Actionscript 3 - Adding Permssions To Flex 4 UI Without States?
Aug 23, 2010
I'm working in Flex 4.1, and I have a viewstack and tabbar as my main navigation. A user logs into the application and should then only be able to see what tabs are available to his user level.I am trying to stick with MXML as much as possible, since it works well with the framework. But I'm goin numb thinking about this. What are the common practices for doing this?FYI: the user level is slightly to complex for states. There are lots of options, way to many to comfortably do w/ states and state groups.
Chimp is a pretty cool library for those interested. It's a little old and there doesn't seem to be much motivation to expand it past UIComponents. So for my purposes it wont do.Again, what do you do for setting up these systems?PDATE: I had to compromise, but it actually worked out pretty well in the end. Instead of destructively laying on permissions (having everything available at first and removing the elements thereafter), the system now works constructively. Here's a sample:
[Bindable]
public var managePage:ManagePage;
[Bindable]
[code].....
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Apr 5, 2011
I'm interested in finding out the best approach to this issue, it's not technically difficult but there must be an elegant solution. Basically i have a form that features mostly text inputs, i would like to change the style of the input boxes based on the current state. I can do this in the mxml on each input...
[Code]...
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Apr 24, 2010
I'm trying to work out how to use states in my Flex app.I've created two states, State1 and Stage 2. Both are based off the base state. I've created a few visual elements for State1, and given each of them includeIn="State1".But when I'm in design mode and click on State2, these elements are still visible?If I try to delete them while State2 is selected, all that happens is RemoveChild is added to the State2 tag.
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Aug 11, 2010
I would like to know if there is a way to add states to a button in flex 4 in addition to the default states that are present.
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Jul 23, 2009
I have an app that I am currently using a viewstack to display each page and I am wondering is this the right way to go, or should I use different states (or something else).
The site is powered by a menu bar with the top level items of Home, Tools, Support. Underneath the Tools menu is a submenu with Tool1, Tool2, Tool3. Currently when the user clicks on any of the tools in the Tool submenu I bring up a child container from the viewstack (each child is actually in a separete component).
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Oct 18, 2010
I have the following panel component called AdvancedPanel with controlBarContent:
<!-- AdvancedPanel.mxml -->
<s:Panel>
<s:states>
[Code]....
Using the CustomAdvancedPanel inside an application component shows an empty panel with the "Go to edit" button. But when I click it, the "Extra edit button" becomes visible, but the "Show in edit" button inside the controlBar doesn't.
When the CustomAdvancedPanel is empty, without redeclared states and "Extra edit button" the panel works just fine.
I think it is because the State object declared in AdvancedPanel isn't the same as CustomAdvancedPanel, so the state is different, even if they have the same name. However. I can't use the states of AdvancedPanel inside CustomAdvancedPanel without (re)declare them in mxml.
Is there any way to achieve this kind of state-reuse? Or is there a better way to obtain the same result?
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Mar 8, 2011
I am trying to use global application states to manage roles in my application. How can I use <properties.state> everywhere in my application if I declare it in my top level application?
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May 17, 2011
I'm having a crack at making my first Flex mobile application (although I'm not new to Flex), and I've tripped at the first hurdle.
I cannot get ViewNavigatorApplication to display a view when trying to use firstView with states e.g. firstView.phone, firstView.tablet.
I'm just left with a blank action bar and content area.
If I try setting setting firstView with no state (e.g. firstView="view.HomeView") the view loads fine.
[Code]...
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May 29, 2011
I am creating an interface that has a few different states for the different steps. For those steps, there is data that I am pulling in from a database to fill certain fields. As of right now I am doing one db query to get all of the data back and want to fill in all of the fields at the same time but it is giving me "access to a null object reference".
It seems as though there is a scope issue when you are trying to access a text input field with actionscript when the state that the text input is in, isn't the current state.For Example (This would throw a "Null object reference" error):
<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" minWidth="955" minHeight="600"
creationComplete="init()">
[code]....
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Jun 9, 2011
I'm developping an mobile program with the Flex 4.5 SDK, this for my thesis for school. I have a bug in my program that I can't fix. I have a view where I have 2 states. When I change from state my program doesn't listen to the backKey event anymore.
[Code]...
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Jul 21, 2009
In my flex project i used one option like Link button . If i like it will be open new page contain more information and components . Which container is suitable one ? Where is used viewstack and stages ?
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Nov 10, 2009
I was recently profiling my application that uses Degrafa States in the skins and noticed that doing so uses more memory than I expected. Between the SetProperty and State, they were using about 10% of the total used application memory.
Would it be better to use css for the state changes and a new skin for each state? or Are there some simple tips to reducing the memory footprint of degrafa?
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May 12, 2010
I have a button with the various states (up/over/down etc) that uses a skin file to render the display. I want to achieve animation between the states. For instance, between the change from 'up' to 'over' I want to fade in a color and a border.
The way I am doing this at the moment is to use viewstates and animate between them using transitions and the mx:AnimateProperty. However, using this method I can only animate one property per viewstate. So only the border, or the color can be animated.
Does anyone know how I can achieve multiple animations on multiple properties of a programmatic button skin?
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Sep 15, 2010
In mxml you declare states like this[code]...
How do you acheive the same in an ActionScript class? Apparently it's the same in Flex 3 and Flex 4, whatever it is.
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Sep 16, 2010
I am having an issue with flex states in my application. What I am looking to do is on creation complete of the application, obtain a user role guest/user/superUser (based on username and password) from a server, then set the state client side based on that information. My .mxml classes need to include certain graphic elements based on that state. I am running into the issues of including elements based on the states defined at the Application level of the project. I am trying to avoid having to define the states in each .mxml file that needs it.
[Code]...
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Nov 19, 2010
Below is a very simple example, randomly, if I click the step2 button the state will change but the Step 2 panel will not be there.
I suspect the children of the state are not getting created for some reason, which is why I set the itemCreationPolicy to "immediate", but it makes no difference This is catastrophic for the application because the user is left in limbo and is forced to refresh
<s:BorderContainer xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx"
creationPolicy="all" currentState="step1">
[code]....
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Nov 25, 2010
State transitions in flex are very helpful. Is it possible to add an automatic state transition between state A and state B in case there is no user response for 5 mins in state A or pop-up an alert?
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Dec 10, 2010
I have several custom components all of which are included in the parent application.When I try to change state from a custom component, I get an error saying "undefined state: state name". How do I change the state of the application from within a custom component ?
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Feb 7, 2011
i'm trying to change components states through a control bar button (id=btn) in main... so i add an event listener to it ... the code goes like this
import flash.events.EventDispatcher;
import flash.events.MouseEvent;
import mx.core.FlexGlobals;
[code].....
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Jan 22, 2012
I have a mobile app where I have 3 states in it. There is the default portrait and landscape and I would to add a third state that includes the other two.
<s:states>
<s:State name="portrait"/>
<s:State name="landscape"/>
[code].....
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Mar 21, 2012
I came across this piece of code and it intrigued me. I haven't seen skinning like this before. I'd like to know if there are any downsides and alternatives to it. For example, is it cpu intensive like addChild calls are?
<s:Button id="loginoutBtn" right="10" top="10" label="Log out" label.loggedout="Log in" skinClass.loggedin="skins.FBLogoutButtonSkin" skinClass.loggedout="skins.FBLoginButtonSkin" click.loggedin="logout()" click.loggedout="login()"/>
[code]........
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Aug 6, 2009
I want to change the view states in my flex app when it resizes in the browser window.I have the swf embedded at 100% x 100%. So when the user resizes the window below a certain width, I want to switch to a different state. I tried adding an event listener like this, but it only fires the event when I resize the swf outside the browser, not inside. I used:
this.addEventListener(ResizeEvent.RESIZE, SizeChanged);
I want this to work within the browser. I even tried using fixed dimensions in the embed code, instead of percentages, but that didn't help either.
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Sep 3, 2009
I've just found out about View States in Flex (v3.0), but I am not really sure how widely this is used in real-world applications. Is it a good practice to use it? Are there any pitfalls such as maintainability for instance?
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Oct 12, 2009
While in Design mode in Flash Builder 4 (gumbo, beta 2), is it possible to edit multiple states at once? In the "states" window, it would seem like I should be able to shift-select multiple states so changes made will affect all the selected states, and if all are selected it will not add the state selector to the property in the mxml tag. No?
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Nov 29, 2009
Is it possible, in flex, to assign multiple states as base for another state? Say I have state "stateA" that adds a button "buttonA" and state "stateB" that adds a button "buttonB". Is it possible to create a state "stateC" that is based on state "stateA" and "stateB"? If not, is there a workaround to accomplish that? Also notice that the button IDs should be "buttonA" and "buttonB" and I can't have several buttons in different states with the same ID ... Here is an example of what I want:
[Code]...
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Nov 30, 2009
I'm building an Xml-driven application. I create new states in a separate actionscript-class.These states all contain a DataGrid. I can switch the states in the Main.mxml.
But now I would like to access certain children of the DataGrid. In this case I would like to toggle the visibility of GridItems, from a Button in the Main.mxml.
How do I have access and apply this to the already created states ? I tried to create RemoveChilds and override/push it to the state.All I archieved was to remove an entire GridRow at the very last state, but it should be just one GridItem at every state.
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Apr 8, 2010
I have a email form in a custom component that is put in the main application when switching to the email state. When someone searches something it will switch back to the search state. But when the person eventually goes back to the email state the contents of the form is still there. I tried doing a creationComplete and running a function that makes the fields have no text such as email.text = ""; but this doesnt work.
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Apr 13, 2010
You define a few states for your control, and then can set child controls to only appear in certain states. Check out this code:
<s:states>
<s:State name="signin"/>
<s:State name="register"/>
</s:states>
[code]...
Now the last name form will only appear in the register screen. This would be really useful I think in .NET where you use the page for views like update / insert. I was considering extending the Page element to have a states property using extension methods, and adding the include in to controls. This way I could auto-hide controls based on the current view at render time.
What is even cooler in Flex, is that you can use different handlers / properties based on the current state.
<s:Button label="Sign in" label.register="Register" id="loginButton"
enabled="true" click.signin="signin()" click.register="register()"/>
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Sep 28, 2010
I wanna add dynamically (at runtime) new states to a container and, to this states, add different elements (like TextInput, Label etc.). This must be done from actionscript, I don't use any mxml file. I can add states and change properties or styles for different elements, but I didn't figured out how to add child elements for different states.
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Dec 27, 2010
I have an application in which I need to create mx.states.State objects on the fly, as I'm reading external data in order to create the states. Each State only has a single child, so here's my code which I was using to accomplish this[code]...
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