I am a newbie to flex, using flex 4.6 with FB 4.7. I am trying to create a BusyIndicator "in front of" (and in the middle of) a Button. I found some examples on Google on image stacking, but for some reason it does not work with a button/indicator combination and I don't know why... I tried using the depth property, but it has no effect, the button appears above the indicator, i.e assuming the indicator is marked by [x]:
[button]
[x] <== indicator
What I want is that the indicator will be in front of, and in the middle of, the button:
[bu[x]ton]
Here is the layout I am using:
<s:VGroup width="100%" height="100%" verticalAlign="top" horizontalAlign="center">
<s:Button id="mybtn" label="My Inbox" click="onInbox()" depth="1"/>
<s:BusyIndicator id="myBusyIndicator" rotationInterval="50" depth="2" />
</s:VGroup>
Any ideas how to do this?
thanks!
It appears you are misunderstanding what layout groups (VGroup, HGroup, TileGroup) do. They work in 2 dimensions, not three. So by placing two objects in a VGroup, they are stacked vertically along the y-axis, rather than along the z-axis (as you want).
What you want is to just use a simple Group here. Group has no Layout to it (it's the parent for Vgroup, and many other classes for that matter) and so all the positioning is handled by the children, rather than the parent (the Group).
<s:Group>
<s:Button/>
<s:BusyIndicator horizontalCenter="0" verticalCenter="0"/>
</s:Group>
That creates a button at level 0, and then places a BusyIndicator at level 1 (1 > 0), and centers it both horizontally and vertically (horizontalCenter and verticalCenter are in pixels from center to their respective axis)
Related
My first steps with Flex (currently using Flex 3) and I want to define 2 states where in the first I have a list and a panel with some button bellow it. When clicking one of the buttons in that panel, I'm expecting to change the state to the "ListState". How should I define which component bellong to which state in this case?
How can I also animate the transition between them by enlarging the list and "move" the panel down outside the application?
The expected behavior is presented in the following picture:
Thanks in advance
You can achieve This without States. As I have understood your task. I will suggest you to use Canvas with 100% height and width. inside canvas You use List and Panel
List will
<mx:List id="List" height="{cnvas.height-panel.height}" width="100%"/>
panel will <mx:Pannel id="panel" height="300" y="{cnvas.height-panel.height}" width="100%" paddingTop="10">
Now When you click button set slideUP.play() and pannel.height=0.
Addition to this you have to set annimation:
<mx:AnimateProperty id="slideUP" target="{panel}" property="y"
fromValue="{cnvas.height-panel.height}" toValue="{cnvas.height}" duration="400" />
I'm trying to make a button in Flash Builder 4.5 that is multi-lined (specific line break, both are left justified), with the second line being italicized. I can do this by making a button, and throwing a label on top of it, but it wrecks the button functionality where that label sits.
Is there an easy functionality to do this, or is it starting to step into custom skins? (I've looked at it, but I'm pretty new to FB, and it looks like a steep learning curve)
Yeah, you definitely want skinning. It's fairly easy since it generates all the code for you. You just need to find the label for the button and modify it to your will.
Sorry to say, but this is the only way to do it properly. If what you're trying to do is just hack it together, I don't think you should be touching code...
Minor clarification/addition:
While having multiple lines in the button label is as easy as setting the 'maxDisplayedLines' attribute of the 'labelDisplay' in the skin to anything larger than '1', s:Label does NOT support multiple styles; i.e. you can't have one line regular and the second line italic.
FTQuest
To create a multi-lined Label of a Button:
Skin your Button (Simplest way: Create Skin from the Design view)
In the Skin, scroll to where you see the Label with the id="labelDisplay"
Set a Fixed Width to that Label in the Skin & you're Done!
Once you populate the label property of the Button, it'll auto multi-line for you
There was nothing I've found to do what I wanted to do (I did find Flexlib and canvasButton, but it didn't seem to work for me)
What I ended up doing is making my own "simulated" buttons. A container with 2 lines of labels (one normal, one italic, like I wanted) with another container over it. mouseOver and mouseOut and click were all bound to the top container to make it seem like one large button. (I also used some alpha transparency to simulate highlighting.
For the curious (or other beginners with similar issue) -this is what I've done
<s:BorderContainer id="bottomContainer" x="129" y="99" width="200" height="44" backgroundColor="#EEEEEE"
borderVisible="false" cornerRadius="6">
<s:Label id="encLabel1" x="48" y="8" color="#000000" fontFamily="Arial"
text="Create a new encounter"/>
<s:Label id="encLabel2" x="48" y="24" color="#000000" fontStyle="italic"
text="Single encounter"/>
<s:Image x="10" y="10" source="assets/001_01.png"/>
</s:BorderContainer>
<s:BorderContainer id="coverContainer" x="129" y="99" width="200" height="44" backgroundColor="#000000"
borderVisible="false" cornerRadius="6" alpha=".1" mouseOver="alphaOver(event)" mouseOut="alphaOver(event)" click="trace('working')">
</s:BorderContainer>
Newbie here,
I have a skinned button at x=47 y=126 which is later "covered" by a .png that loads dynamically. Once the .png loads, the button disappears. How can I tell Flash Builder 4 to place the .png behind the button so that it is always clickable. FYI: if I move the button away from the graphic, it works just fine, but, for design purposes, I really would like it to stay where it is.
Thanks,
Jason M.
You could also try giving the button a depth value of 1 or higher.
"Spark containers order their items based on their depth property, with the lowest depth in the back, and the higher in the front.Items with the same depth value appear in the order they are added to the container."
<s:Button x="47" y="126" depth="1" skin="customSkin"/>
Conversely you could add a smaller depth to the .png, or if you are drawing them in the same container change the order they are in there. (From the quote above on depth)
If you need to have an image as a background for your button you should place it behind button the following way:
<s:Group>
<s:BitmapImage />
<s:Button />
</s:Group>
I suppose your case is the following:
<s:Group>
<s:Button />
<s:BitmapImage />
</s:Group>
I'm using a custom itemrenderer to display a list of photos and need to know how to control the width. At the moment it does this:
(source: tdwright.co.uk)
Which, as I'm sure you'll agree, is eye-bleedingly ugly.
The list is created like this:
<mx:Panel width="100%" height="100%" layout="absolute" title="Photos">
<mx:List x="0" y="0" width="100%" height="100%" id="photoList" dataProvider="{photos}" itemRenderer="thumbnails" rowHeight="100"/>
</mx:Panel>
And the itemrenderer component looks like this:
<?xml version="1.0" encoding="utf-8"?>
<mx:VBox xmlns:mx="http://www.adobe.com/2006/mxml">
<mx:Image source="{data.src}" id="image" scaleContent="true" toolTip="{data.caption}" height="100%" horizontalAlign="center"/>
</mx:VBox>
I've tried placing width="100%" in a whole bunch of places, but without success. If anyone knows how I can control this I'd be very grateful.
If you set these properties inside the itemrenderer verticalScrollPolicy="off" horizontalScrollPolicy="off" the bars are disappeared
I don't know why they choose for the terrible "off" instead of False
A couple of observations here, based on a miasma of similar painful experiences. (Caveat: I have not built a test app to confirm everything here for this specific case)
Assuming that what you want is for the list to size its width based on the size of the itemRenderer elements it contains, those itemRenderer elements need to provide width information. Using a VBox in this fashion with scroll bars permitted means the VBox will attempt to "arbitrate" between the size of the content (Image) and the size of the parent. So yes, first thing to do is turn off the scrollbars on the VBox, assuming you can't just get rid of the VBox altogether. (I'm guessing you want the VBox so that you can put a title or something under the image as a next step)
The List as you have it specified is sized to 100% of its parent, the Panel, which is itself sized to 100% of its parent. Rather than size these elements "top down", consider letting their width be unspecified so that Flex will compute their required width bottom-up. Use maxWidth on the List or the Panel constrain their size if you need to for laying them out relative to their peers.
Another important thing to know about is the "minHeight=0" trick. Turns out, the sizing algorithm used by Flex behaves quite differently when minHeight or minWidth is set to something other than the default NaN. Setting it to 0 is extremely useful in many of these cases. Try minWidth=0 on the VBox and/or the List.
In addition to turning off the scrolling policy, set left and right to 0. That should anchor the width to the width of the parent.
Here's a problem I keep running into:
I have a lot of situations where I need to display some text with a styled container like so:
<mx:Canvas>
<mx:Text text="{text}" left="5" verticalCenter="0" right="5" />
</mx:Canvas>
As you can see - the text in constrained by the left and right margins of the canvas and I have not specified a height for the text control because I want it to grow vertically when I add text to it. Reason being - if there is one line of text I want it to display in the center of the canvas but if there are two or three lines of text I want the text control to show those two or three lines of text.
What keeps happening however, is that it will only display one line of text - no matter how many times I call invalidateSize() on it or the container. What do I do?
CAVEAT: The canvas height and width is set by the component that instantiates it (this is all wrapped up in a custom component) so I can't explicitly set the width or height of the text control...
NOTE: Ok, maybe it's an easy fix because as I was typing this question I figured it out - but, here's a chance to answer an easy question!?
The Text component needs a width if you want it to automatically wrap for you. If you used a string with newlines in it it will work grow as you expected without a width. For you, use:
Edit: Ok, you want it centered in a canvas of varying size. Then you can:
<mx:HBox
width="500"
paddingLeft="5"
paddingRight="5">
<mx:Spacer width="100%" />
<mx:Text
width="100%"
text="{text}" />
<mx:Spacer width="100%" />
</mx:HBox>
Take a look at the TextArea component.