How do you define a global variable that is accessible across all views on Flex mobile / Flex 4.5/4.6
(Edited for clarification)
Is it still necessary to have to use a separate global class?
(additional) There is a new PersistanceManager in Flex 4.5, is there something like a GlobalObjectsManager that can be used to just set/get stuff in memory?
I have 2 movie clips, one being loaded into a container MC via "loadMovie();"In the main movie there is a variable with no value, in the external movie there are 5 frames, each with a value to update the variable in the main movie.
IE: if on frame 1, global value = 1 / if on frame 2, global value = 2 / etc etc I'm familiar with passing variables INTO an external swf, but am stumped on how to do it the reverse way.
I am trying to work with a global variable in Flex and it does not appear to be working correctly. In my default mxml file I declare the following
public var appID:int;
This variable keeps track of the session ID across my application for SQL purposes. On another mxml page I call the following code which should update the global variable to the current ID.
// Get the ID
sqlStatement.text =
"SELECT Max(id)FROM applications";
sqlStatement.execute();
var result:SQLResult;
result = sqlStatement.getResult();
FlexGlobals.topLevelApplication.appID = result.data[0];
Lastly I run a SQL Update query using the ID as a parameter. My problem is that the FlexGlobals.topLevelApplication.appID is always 0, for some reason the global variable never gets updated, I have checked to ensure that result.data[0] is correct but the value never gets passed to the global variable.
i have searched the actionscript reference page and can't seem to find how to declare simple global variable.
View 3 RepliesThe variable currentIndex is declared globally and initialized with a certain value say '0'. How do I hold the value of currentIndex which is incremented every time the function is called? In the given code, every time the function is called, the value is reinitialized.
function nextSong(e:Event):void
{
sc.stop();
[code]........
I am trying to make a simple mp3 player using flash. The songs are loaded using an XML file which contains the song list. The following code is inserted into a new keyframe.
import flash.media.Sound;
import flash.media.SoundChannel;
import flash.events.*;
import flash.events.MouseEvent;
[code]...
The problem over here is in the nextSong() function. I am unable to preserve the value of currentIndex. Although I am incrementing currentIndex every time the function is called, but the value remains unchanged.
i defined the global variable in the first frame of my file, and i can access it on other frames, however i am trying to access it within a movieclip, and flash is telling me that it is undefined. does anyone know why this could be?
View 1 RepliesIve read a ton of online tutorials about this and cant seem to get a definite answer...
View1.mxml
navigator.pushView(views.view2, {response:"BLAH"});
View2.mxml
[code].....
I'm trying to figure out how to in as3 (not mxml) add views to a view stack.For example I have a view component like so[code]I've being trying to add it to a viewstack in the following way.[code]I'm aware I have to assign ID's but for now I just want to get the view in there
View 2 RepliesI have a Flex application with three different views. Only one view is shown at a time, and the choice of view depends on what part of the application the user is working with. If it had been an ordinary HTML webapp I would have created three different HTML-templates/pages for each view.
What is the recommended way to handle such application views in Flex?
I'd like to make an application for PlayBook (using Flex) that has the UI similar to the PlayBook web browser. By similar I mean I want to implement a menu that is shown when the user swipes down from the top bezel of the tablet. I like this feature because I can draw on it, place tons of other objects and handle all kind of events without using screen space when not needed. Plus the PlayBook does not have a "Menu" button like some phones have.Depending on configurations chosen from the first view a number of other views will be pushed onto the the stack view. When the user will access the pull down menu I'd like to show in form of thumbnail snapshot my main (configuration view) and the rest of the views that are on the view stack. This will basically show the user what is going on in different view and let him choose to which one to switch.[code]The menu is accessible from any view, but the code for event handler is in my main MXML file (project.MXML), I found this to be the only way of having one menu for all the views. I managed to pull down the menu from any view and displaying a thumbnail of the current view.
How to get access to all the views. I've been trying all day and all my trials give me access to the active view and my menu object. Here is some code to show what is going on:[code]As I mentioned above this for loop will successfully do the job for the current view then it will crash.Does anyone know how to loop through all the views? This is my first application with flex so if there are any alternatives to my approach I'll be glad to try them. Although I'd like to stick with a single ViewNavigator as opposed to tabbed navigator and multiple views instead of states.
I have an ArrayCollection bound to a view, I use a filterFunction on this view to only display parts of the contents. Additionally I have another component where I want to display other parts of the ArrayCollection.
What I would like to do is wrap ArrayCollections around each other, meaning I could have one ArrayCollection containing the model data, and then two separate outer ones where I can set the filterFunction property (setting this in the model seems inappropriate in all cases). Is this possible somehow? If not, how else can this be solved, preferably without forcing model logic to end up in my view?
Often multiple instances of the view component would be used in multiple places in an application. Each time I do this, I register the same mediator with a different name. When a notification is dispatched, I attach the name of the mediator to the body of the notification, like so:
[Code]...
how I would pass a value to "SelectedChild" in ViewStack:
In the example below, I am trying to set a public property in a form called "register" after I have navigated there from another form called "login".
The result I get seems to be a compilation error:
Error: Access of possibly undefined property pagename through a reference
with static type mx.core:INavigatorContent.
vsMain.selectedChild.pagename = "register page";
[Code]....
I have a project that has 4 views where I'm using the tabBar with viewStack/NavigatorContent. I have a couple HTTPServices set up gathering the XML and converting to Bindable ArrayCollections. When and how is the best way to pass that data to such things as charts, dataGrids, etc. that aren't seen until the user clicks a tab? Right now I have each item set up with creationComplete functions that pass it then. Although it seems to be working, is this the best way, or is there something better and maybe even quicker?
View 2 RepliesWhat are the criteria for decomposing a Flex applicaiton to views? I find quite difficult to apply the Single Responsibility Principle in this context.I've come to the following conclusions through my experience:More monolithic approach(e.g. one view per tab, lots of panels in the same tab)Very easy communication between components as only one Presentation Model is used Cannot use multiple States, only on the top level component.More modular approach (e.g. one view per panel)(the opposite to the monolithic one)
View 1 RepliesI was wondering best practices for views of inherited classes in PureMVC in this situation: Multiple classes inherit a BaseClass (lets say InheritedClass1 and InheritedClass2) Each InheritedClass has a respective view (derived from a base view class, but each unique) With a given dataset (lets say ArrayCollection of InheritedClass1/2 Objects), the respective views need to be dynamically loaded. The dataset is relatively large, so a TileList would be nice (since it only instantiates objects which are currently displayed) I can think of a couple solutions, but I find them to be too "hackish" to be the best solution:
In View: Repeater over a BaseClassView which attributes a view to a State (set to the "InheritedClass1" state to add a InheritedClass1 object) Pros: No unneeded memory increase (States' objects are instantiated when needed) Cons: View is dependent on the data types, so adds coupling In Mediator: Loop over the ArrayCollection and addChild() the views based on data type Pros: Works. Cons: Mediator is adding things to the View, which defeats the point of the separation of Mediator and View. Slower than a Repeater.
I have data model (dataProvider as ArrayCollection) i want to display in few views , each view should show filtered data. As you probably know, filterFunction is property of ArrayCollection,so I can't use this solution (unless creating new instance of ArrayCollection for each view on top original and impementing filterFunction).
View 2 RepliesI'm looking to create a flashBuilder document which uses seperate MXML files as "views" which are controlled by states - I believe it's a design pattern of sorts but I'm relatively new to FlashBuilder. I was wondering if anyone knew what design pattern it was and if I can be pointed in the direction of some good references! FYI I'm looking into using FlashBuilder to design Android apps
View 1 RepliesI have a list of txt files and when one is selected it is read and assigned to a string variable. this string is then pushed to a view : pushView(viewer, string), where the string is displayed in a textarea. I want to also pass the relative path of the file also. Is this possible to pass two strings?
[Code]...
I'm used to building applications using pure AS3. I always pass dependencies into the constructor of classes I make, but this method seems to not work out well for Flex MXML views. It seems like I should define setters on the MXML class, which map to attributes in the tag/class instantiation. But using this method I cannot specify which properties are required and in what order I expect them etc. What is the preferred method to give a Flex view it's dependencies?
View 3 RepliesI have a SplitViewNavigator with two split views. In one of the views I have a list and in another one I have questions. User must solve the question and when user click send button, he will see another question.
But when user click to send button in one view, how can i know this in the other view? I'm a newbie in Flash Builder and I'm searching for this for hours.
how to define global variable in fms so that it can be accesses by different application instance of same application,
View 2 RepliesI'm trying to get a value from a function which is a URLLoader COMPLETE event but even with declaring variables outside of the function will not allow me to get the value out. I'm stuck.It seems that the Asynchronous nature of Flash makes it impossible to get a value out: e.g. this works:
// Initialise a URLLoader to get XML data from XML file
var myFPBLoader:URLLoader = new URLLoader();
myFPBLoader.load(new URLRequest("flightPlannerBoard.xml"));
[code]...
I have application with a viewstack witch load 5 modules. each module is loaded via the moduleLoader tag and they all have an id.
Every loaded module has a context menu. the context menu has 5 menuItems. one menuItem for each view for the viewstack.
The context menu is loaded via xml.
this is my application file.
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
layout="absolute"
backgroundColor="#b1b1b1"
[Code].....
the xml of the context menu is in the module but, the context menu is in a as file that extensiate a button.
I have a movieclip on the stage, and in that clip I have a button that is supposed to turn a global variable from true to false, but the compile tells me:
1119: Access of possibly undefined property root through a reference with static type Class.
When I use this code:
Code:
function closeMSN(event:MouseEvent):void{
this.visible = false
Stage.MSNOpen = false
}
I know how to reference the movieclip itself by this, but how do I change the value of a variable on the main stage, from inside the movie clip?
i've declared global variable in the first frame of the main timeline:var cLabel:String;In the inner timeline of a MC, i use this code:stop();cLabel=this.currentLabel;but flash gave me error 1120: access of undefined property
View 6 RepliesI'm having an issue with a global variable. I'm trying to give it a value within a function and it isn't working.The variable is imageList. It's an XML List. I'm making it global so I can use it anywhere in my project. I suppose if someone has a better idea to avoid the global variable, I'm up for that too. But for now, it seems like the way to go.
Here's my .as file:
package
{
public class MyGlobal
{
[code]....
It's giving me the same same Error #1009 as above. It seems like a scope problem, but why? Shouldn't it work since it's a global variable?
I am trying to set up a global variable. On the root of my timeline, I have this;
_global.floorVar = "0";
trace(floorVar);
which seems to trace fine to say 0.
Then, inside of a movie clip on the main timeline, I have a button function:
floor1.onRelease = function() { _global.floorVar = "1"; trace(_global.floorVar) _root.gotoAndStop(2);};
if (_global.floorVar == 1) { trace("it works");
}
It traces as 1 once I press the button, but the if statement doesn't trace "it works" is my global variable set up wrong?
var frName = fruit_txt.text;
disp_btn.addEventListener(MouseEvent.CLICK, disp_fruit);
function disp_fruit(Event:MouseEvent)[code]....
defining the variable i:e frName.... outside the function it does not display anything..same time if I define same variable inside function i:e disp_fruit...it displays the name ]why?
and how can i use variable i:e frName as global var so that it can be used in any function?