I've been having this problem forever now. All I want to do is create a button that adds a new (input) text field that is located right beneath the previous one (Like perhaps, a user creating a bullet list with a certain amount of items).
Here is the code I have so far (that pertains to the topic)
function addCompanySlotButton(b:MouseEvent){
for(var i:Number = 0;i<slotArray.length;i++){ //slotArray holds the number of text fields (slots) that exist.
company_slot.name = "slot"+(i); //This is supposed to name the newly-created text field by its index number. (company_slot is just a variable name for the text fields)
company_slot.y = 30*slotArray.length; //This is supposed to move the newly-created index slot down by 30 * (whatever it's index number is).
company_slot.x = 75;
company_container.addChild(company_slot); //company_container is just a display object that shows the text fields/company slots.
}
slotArray.push(company_slot);
trace(slotArray.length); //This number increases every time the button is pressed, so I know for sure that there is more than one text field.
}
However, it appears as though all of the text fields are in the same spot, and whenever the button is pressed, ALL of them move instead of just one. I'm pretty new to actionscript (and coding in general), so any help is greatly appreciated.
Related
I want to receive separate click events from separate lines in a text field, and every time a certain line is clicked by the user, I would like to highlight it and have an event happen.
I would ideally like this to happen with dynamic text, and not have to break the text apart by hand. Using the htmlText property is an option, but I am unsure as to how to bind clickEvents to separate elements.
Where do I begin?
There is no ready to use solution for this. But you can make it yourself using a few things:
set CLICK listener for the whole text field
listen for click and check the caretIndex property
use getLineIndexOfChar to check what's the line of the current caret position
use getLineOffset and getLineLength to get the position of the first and last character of that line
use setSelection to highlight this line
There might be some faster and easier way, but this is what works for sure :)
EDIT: decided to post the solution code, as I was wondering how exactly it works.. and it would be a shame to just leave it unpublished and make you do it instead :)
field.addEventListener(MouseEvent.CLICK, onTfClicked);
function onTfClicked(e:MouseEvent):void {
trace (field.caretIndex);
var line:uint = field.getLineIndexOfChar(field.caretIndex);
var start:uint = field.getLineOffset(line);
var end:uint = start + field.getLineLength(line);
field.setSelection(start, end);
}
So I am making a data entry program where the user presses buttons to generate new inputs (numbers text etc.) and when finished the lists are generally between 100-10000 items.
The program has been coming along well, but now I am at a point where one set of data entered must generate the coices for an array [1,2, . . .] which is part of a later set of data.
So what I have done is setup buttons with the ID based on the earlier inputs. (The whole data set is saved as a JSON)
And what I want to do is when the button is pressed it looks pressed and writes to an HTML element the ID of the button which will later be read and saved to JSON.
My problem is centered on getting the correct information back to the user.
function doStuff(container){
for (var u = 0, c = someJSON.length; u < c; u++){
var someButton = document.createElement('button');
someButton.id = someJSON.id;
someButton.className = 'someButton';
someButton.onclick = function() {
writeIDToHTML(container,someButton,someButton.id);
}
container.appendChild(someButton);
}
}
function writeIDToHTML(container,theButton,theID){
console.log("theID")
console.dir(theID)
}
This prints only the last ID in the loop. How do I get each ID to each button?
The other thing to do is to give the button a pressed look.
Bonus points if it is reversable.
You should not add a listener on each element. The way to do it is adding a listener on the container and get the id of the clicked event (via event.target). This is called event delegation.
I could explain it, but this guys made a perfect answer to your question : http://davidwalsh.name/event-delegate
Btw, you should consider using a library like jquery to manipulate your DOM. It implements event delegation and advanced cross browser DOM manipulation utilities. For instance, you would not need to add a 'container' property since you can access it by the parent() method.
I want to create a scrollable list in flash/as3 and the important thing is.... if the user wants to move some list item up or down... he can do that by dragging the item... so when he press and hold on an item... the item will become drag-able and as the user moves it up or down the list, the other items should slide to the empty space. Its the same behavior seen in smartphones....
I'll figure out the creation, data filling, scrolling, and other mouse interaction events.... i just want help with this one behavior....of changing the order of items by dragging them. If only someone can just provide the basic algorithm or any idea how this can be achieved.. it will be enough.
​Thanks in advance
EDITS :
First of all... i apologize for not posting any details about the question... (this is my first post to this site) and hence i am adding all the research and what i have done so far.
the list is part of a big project hence i cannot share the whole code.
WHAT I HAVE ALREADY DONE :
i have created a mask, a container, a scroll bar to scroll the container, items to add into the list, methods to add items, remove items and arrange them according to the order.
hence it is a scrallable and working list.
the whole thing is in as3 and flash only.
i don't know flex and i don't want to use it either.
WHAT I WANT NEXT :
i want to change the order of these items by (mouse_down on an item -> drag it up/down -> mouse_up at the position) sequence.
If anyone wants more details i can share it.
Thanks in advance.. :)
Add a simple List component to an application
In this example, the List consists of labels that identify car models and data fields that contain prices.
Create a new Flash (ActionScript 3.0) document.
Drag a List component from the Components panel to the Stage.
In the Property inspector, do the following:
Enter the instance name aList .
Assign a value of 200 to the W (width).
Use the Text tool to create a text field below aList and give it an instance name of aTf .
Open the Actions panel, select Frame 1 in the main Timeline, and enter the following ActionScript code:
import fl.controls.List;
import flash.text.TextField;
aTf.type = TextFieldType.DYNAMIC;
aTf.border = false;
// Create these items in the Property inspector when data and label
// parameters are available.
aList.addItem({label:"1956 Chevy (Cherry Red)", data:35000});
aList.addItem({label:"1966 Mustang (Classic)", data:27000});
aList.addItem({label:"1976 Volvo (Xcllnt Cond)", data:17000});
aList.allowMultipleSelection = true;
aList.addEventListener(Event.CHANGE, showData);
function showData(event:Event) {
aTf.text = "This car is priced at: $" + event.target.selectedItem.data;
}
This code uses the addItem() method to populate aList with three items, assigning each one a label value, which appears in the list, and a data value. When you select an item in the List, the event listener calls the showData() function, which displays the data value for the selected item.
Select Control > Test Movie to compile and run this application.
source: http://help.adobe.com/en_US/ActionScript/3.0_UsingComponentsAS3/WS5b3ccc516d4fbf351e63e3d118a9c65b32-7fa6.html
Finally i have got the answer from some other forum.
Here is the link to the example (behavior) that i want to add to my list :
http://www.learningactionscript3.com/2008/05/13/the-power-of-relative-positioning/
(at the bottom 'Advanced Align Example').
Current my code is as such
setcustomlocation.addEventListener(MouseEvent.CLICK,customlocation2);
function customlocation2(e:MouseEvent):void
{
locationinput.text = FlashingWon.Won1.name.text;
}
I'm trying to make it such that it would copy the input text field values into a dynamic text. However, it throws up the error that
TypeError: Error #1009: Cannot access a property or method of a null object reference.
at main/customlocation2()[main::frame1:9]
Which can I only assume that it is not able to communicate with the dynamic text field in the movieclip within another movieclip.
First, you can be 100% sure that it CAN communicate with the dynamic TextField in the MovieClip.
From you description I understand that you wish to copy from input into dynamic. But from your code I see that you take from the dynamic into the input, please check that out:
// This will copy in such a way: input <= wonText
locationinput.text = FlashingWon.Won1.name.text;
// This will copy from input
FlashingWon.Won1.name.text = locationinput.text;
Anyhow, the error that you get has nothing to do with this, it's rather like you already noticed, that one of your TextField is not 'found'. For this I recommend you a best practice: To create instances of the objects you want to use and populate them from the stage through the getChildByName method. This way you will promptly now (specially if you do this on construction or init) if you had any misspelling or miss structure on the childs you want to get.
like so:
var inputText: TextField;
var dynoText: TextField;
In your Constructor or else where at a soon level, give to your vars the proper value:
inputText = getChildByName('locationinput') as TextField;
dynoText = FlashingWon.Won1.getChildByName('name') as TextField;
This way you will soon enough know if one of this 2 textFields were not found under the object you give, and you have only one place to miss spell it. Also you will get code completion on your TextFields.
Finally the copy text part:
dynoText.text = inputText.text;
Hope it helps.
Alright, sorry for the delay, I was out on holidays.
I have opened your example and can see where the problems are:
1) You are trying to reach the FlashingWon when initiating the dynoText on the FIRST frame like so var dynoText = FlashingWon.Won1.getChildByName('name_txt'); BUT the FlashingWon element is ONLY available on the FIFTH frame. Meaning that you cannot refer to it quite yet, unless you add it on the first frame and make in invisible till the fifth frame. (You can make it visible in the goto1 function if you wish after the goToAndStop(5) line)
2) You called the TextField on the Won1 element 'name' which is a restricted sting in AS3, so change it to name_txt or label if you wish and it will work.
Let me know how it worked.
I have a setup a PageHolder class (based on MovieCLip) that displays a doted area with a (page) number in the middle.
Now attempting to populate my LayoutPane, I create new instances of of PageHolder whose constructor is tasked to set the text value of its only Texfield to the value specified in the new PageHolder parameter.
The problem here is that only the character present in the Library Object will display at run time.
For example, I have setup my PageHolder object with a text field containing the number "0". Now at run time, every instance of PageHolder is blank except fro the one that I passed a "0" as part of the init parameter (10,20,30,...) and on those pages, only the "0" is showing. If I change the original object to display a "1" instead, then every "1" of the page number that contains a "1" show ups.
Can somebody shed some light on this?
package
{
import flash.display.MovieClip;
public class LayoutPage extends MovieClip
{
public function LayoutPage(page:uint)
{
pageNumber_txt.defaultTextFormat = pageNumber_txt.getTextFormat();
pageNumber_txt.text = String(page);
}
}
}
You may need to embed the font you are using for the text field.
Select the text field you have put in your PageHolder class and click the Embed button underneath the font family drop-down box, then check the item labeled 'Numerals[0..9]' and click OK.