Flex Get Height Of Children When To Call Function?
Jun 8, 2009
I have a function I wrote that gets the height of the application without scrolling. Meaning the height it would need to be to not have to scroll.
[Code]...
This function works well but the problem is knowing when to call it. I planned on calling it after I add/remove any children from it. However thats still too soon because I don't get the correct height yet if I run it then. The fix I currently have is using a Timer to call the function about 300 milliseconds after a child is added/removed which seems to work well but I think this is a very risky fix. So I was wondering a better solution. I am thinking there has to be some sort of event I can listen for that will tell me when its ready for me to run this function, I just don't know what event that would be?
I'm having sizing issues with a TabNavigator. The direct children of the TabNavigator are Canvases, and within these I am adding Images. I'm trying to resize the images to fit within the Canvas without scrollbars. The Canvas height is set to 100% of the parent, which is the TabNav. Then I'm setting the image.height = parent.height *.9. The result is that Flex is generating scrollbars because the images are too high. It appears that the root cause is that the height property of the TabNavigator is the height of the entire component, including the height of the tabs. I'm assuming therefore it also contains that little strip of space between the tabs and the children of the TabNavigator. This makes sense, but is there a property that returns only the height of the children? I'm aware of the scrollbar policy properties and I've experimented with those. I know I can also try a different multiplier for the image size to get it to fit. It just seems like there should be a property to get the size of the space for the children.
If I have a container, and I set clipContent to true, how do I get the total height of the children inside it? Is there a method for doing this without itinerating through every child and summing the heights?
I have code like the following: <s:VGroup gap="10" id="group" height="100%"> <s:Label text="This is page 2" /> <s:Button content="Resize Canvas" click="resize(event);"/> <mx:Canvas id="photoCanvas" color="#567898" backgroundColor="#125567"> </mx:Canvas> </s:VGroup>
I don't understand why the following does not work: Pushing the Button resizes the photoCanvas's height (gets taller or smaller). Since the photoCanvas control is a child element of the VGroup shouldn't the container update itself to the new height? The Vgroup has ALWAYS the same height, no matter what the (total) height of the children is! I would like the VGroup to adjust itself and get a height value equal to the sum of its children heights. Is this not possible??
I have a ViewStack which is dataProvider for a TabBar. There are two VBoxs as children for this ViewStack. It works fine with absolute values for width and height for these VBoxs, but when specified in percentages, the VBox uses all the available space (100%) for any percentage value. find the code and screen shots below.
how can children of a ViewStack be aligned to center? There is no horizontalAlign property for ViewStack and it is not working with horizontalCenter= "0".
I have an AS3 program that calls a function multiple times. The function must return multiple variables, so I created a class for the function to declare an object containing all of these variables. For example, here's my class:
package { public class PER { [Code].....
Let's say the calling program calls the function, which returns the variables into data_set1 (where data_set1 depends on input variables arg1, arg2, arg3) using:
var data_set1:PER = function_name(arg1, arg2, arg3);
The calling program does some stuff, then calls the function again, but returns the variables into a new variable name, data_set2:
var data_set2:PER = function_name(arg4, arg5, arg6);
My intention is that data_set1 and data_set2 are different (e.g. not linked together).
My question is, given that arrays are passed by reference, will data_set1 be modified to agree with data_set2 upon the 2nd function call? Why or why not?
As you can see from the last line of the piece, i have a the creationComplete option run two functions. What I would LIKE to happen is once the repeater is done loading all of the block:project pieces for each function to run once and only once. Instead, the two functions are running after each is created. I tried putting the creation complete in the tag, but that didn't work.
Is there a way to tell the creationComplete piece to run only when the last piece of the repeater has been created?
Changing the width and height of the parent MovieClip does not bring change in the width and height of the inner MovieClip. The parent MovieClip is placed at Stage and is resized manually. When I assign the dimension of the parent MovieClip to the inner MovieClip through code, the parent MovieClip dimension is changed. I want both MovieClip to be of same width and height at runtime. However, parent MovieClip dimension is changed at design time by me.
Example:There are two MovieClip, one inside another. Now parent MovieClip is placed at Stage at design time and its dimension is (50,50) and the child MovieClip which is inside the parent MovieClip has also same dimensions (50,50). Now, I manually change the parent MovieClip dimension by pressing Q and stretching it with mouse, the dimension of the parent MovieClip is now (100,150) or whatever I like. Now double-click on parent MovieClip and check that inner MovieClip dimension remains same i.e. (50,50)Now in AS3 code, I change the width and height of inner MovieClip like this:
In above case, parentmc and inne_rmc dimension should be same i.e (100 ,150). With swapping the values as above, I get parentmc and inner_mc to be of same dimension, but object size is never (100, 150), I have checked it with pixel-perfect air app.
I have a container object that i add children to. I want to change the height & width of the container without the children scaling. In this case I draw a rectangle in flash which I'll use as the container object then export for AS.
I have placed 3 movieclips named mcParent, mcChild1, mcChild2 and 1 textbox in flash. child are childrens of parent movie clip. child1 and child2 both are of sizes 300 whereas parent movieclip is 600px, textbox is placed inside child2 movie clip .
I have made the flash to auto resize according to the screen area. Everything works well, but after resize it resizes parent and all childrens and textbox which is correct. The problem is with the correct placement of textbox on mcChild2. I have seen that after resize, mcParent width and scalex both changes but the child clips doesn't changed its sizes even they are stretched but there sizes are not updated due to which I am unable to get the exact location of where to place the textbox.
I have a Canvas which has many components inside it and those again, have many components inside them.
getChildren() returns only the top level children. What is the best way to retrieve all the children (children of children of children and so on).
Well, I sorta know how to do this by iterating through the children, but the code is really messy. I'd prefer to use a nice recursive function. Has anyone written this before? Or is there a Util class to do this?
I create standard AS3 flex project. In constructor goes only start();
rest of functions are basically this: private start():void { f1();} private function f1():void { f2();} private function f2():void { f1();}
And it's standard recursion. SWF either breaks or loops as many times as I tell it. One f calls the other, which calls first... I do not want that. I want f1 to do some stuff, calls f1 and closes itself. Than f2 works, calls f1 and closes. And so on. Like having 2 sets of code that loops through.
I have a Flex 3.4 app that embeds a swf with mx:SwfLoader...
That swf has a public function named "playIt". I've tried dispatching events to gettingHere.content, casting gettingHere.content as a MovieClip and other stuff...
var swfApp:MovieClip = MovieClip(gettingHere.content); if (swfApp.hasOwnProperty("playIt")) { var helloWorld:Function = (swfApp["playIt"] as Function); helloWorld(); }
And I call my itemRenderer from an application like: list_groups_modify.itemRenderer=new ClassFactory(groups.list_groups_modify_item_renderer); <mx:Label text="{data.label}" textAlign="center" maxWidth="60" toolTip="{data.label}"/>
Is it possible to call the function by using the datagrid column item?I want to call the function while the user click the particular column item in the datagrid?
Can I call a function when building an array in Flex 3?
public function gridBuilder(myArray:Array):void { var i:uint; for (i=0; i<myArray.length; i++){
[Code]....
MyArray is the result of a remote call to the database. I then prepare the array to be used in a dataGrid. I also want to call a function that provides a grade. Unfortunately, my function appears to be called only once. Is it possible to call a function when you're building an array? see the "Grade:" bit.
Is it possible to call a child function from within the parent? I know to go child > parent, you can do parentApplication.functionName(parameters);, but what about going the other way... that is parent > child?
I was wondering if flex has some events that can call before I close the whole application or close browser. Since I would like to send a httpservice to a php before the swf is closed. I tried this before:
function doSomething(... args): Object { // do something with each arg }
However, I'm building the arguments for this dynamically:
var someArgs: Array = ['a', 'b', 'c']; doSomething(someArgs);
The problem is, when I call the function in this way args ends up being a 1-element array with someArgs as the first element, not a three-element array.How can I call doSomething with someArgs as the argument array?(For the search engines, this is argument unpacking)
