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Simple array question
Hi all,
I'm bringing a set of filepath data into flash in the standard comma delimited format like this:
&galpic=/members/1/images/31.jpg,/members/1/images/32.jpg,/members/1/images/33.png,/members/1/images/34.jpg,/members/1/images/35.png,/members/1/images/36.png
Flash uses this to make a gallery and it works fine. As the user clicks "next" Flash uses the next filepath to pull up that image.
What I would like to be able to do is display the filepath of each image as it is displayed - so I need to isolate which number in the array flash is using at any given moment. (It will with a button trigger).
Any ideas ?
Best wishes
Monty
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split to an array using the comma delimiter
then split the array to separate the numbers -
PHP Code:
galpic="/members/1/images/31.jpg,/members/1/images/32.jpg,/members/1/images/33.png,/members/1/images/34.jpg,/members/1/images/35.png,/members/1/images/36.png";
tmp = galpic.split(",");
len = tmp.length;
for(var n=0;n!=len;n++){
tmp[n] = tmp[n].split("/");
tmp[n][4] = tmp[n][4].split(".");
trace(tmp[n][4][0]);
}
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Thanks for the reply.
So I did a test, set up a dynamic text field with a variable name of "del_pic" then
put this code on the "next" button.
on (release) {
tmp = _root.galpic.split(",");
len = tmp.length;
for (var n = 0; n != len; n++) {
tmp[n] = tmp[n].split("/");
tmp[n][4] = tmp[n][4].split(".");
del_pic = (tmp[n][4][0]);
}
}
When tested online "del_pic" returns "undefined".
Any ideas ?
Maybe I should mention that the original data is coming through FlashVars from a php file but I can't see that making a great deal of difference.
Best wishes
Monty
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when you try -
PHP Code:
on(release){
trace(_root.galpic); // what is the output here ?
}
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Can't run a trace (I'm developing live online) but this:
on (release) {
del_pic = _root.galpic;
}
returns the array (string of filepaths) in the dynamic text box "del_pic".
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so can you extend the output and show where the code falls down ..
make del_pic a multiline textfield and --
on (release) {
del_pic = _root.galpic;
tmp = _root.galpic.split(",");
del_pic += tmp;
len = tmp.length;
del_pic += len;
for (var n = 0; n != len; n++) {
tmp[n] = tmp[n].split("/");
tmp[n][4] = tmp[n][4].split(".");
del_pic += (tmp[n][4][0]);
}
}
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Appreciate your help on this btw...
Did as suggested and the code returned this in the "del_pic" text box:
(cut and pasted)
/members/1/images/31.jpg,/members/1/images/32.jpg,/members/1/images/33.png,/members/1/images/34.jpg,/members/1/images/35.png,
/members/1/images/36.png,/members/1/images/37.png,/members/1/images/38.jpg,/members/1/images/39.jpg,/members/1/images/40.jpg,
/members/1/images/41.jpg,/members/1/images/43.jpg,/members/1/images/31.jpg,/members/1/images/32.jpg,/members/1/images/33.png,
/members/1/images/34.jpg,/members/1/images/35.png,/members/1/images/36.png,/members/1/images/37.png,/members/1/images/38.jpg,
/members/1/images/39.jpg,/members/1/images/40.jpg,/members/1/images/41.jpg,/members/1/images/43.jpg, 13313233343536373839404143undefined
I don't understand the output.
24 filepaths, a 26 digit number (or 26 numbers, or 13 two digit numbers???) and then "undefined".
I've set up a couple of "tools" to help get this sorted.
Firstly, the php file is now giving FlashVars a new variable of "allpics" which is the total number of filepaths. (which can of course vary from user to user but "allpics"
will always be accurate as passed to the Flash front end).
Secondly I've set up an incrementing counter in a dynamic text field "num" which starts at 0 and goes up by one on every click of the "next" button. This works until
num == allpics at which point it resets to 0 (so the next click tells "num" to be 1 and therefore tells the gallery to use 1 as the image path to use and causes the
gallery to loop).
I'm going to post two blocks of code now so you are not in the dark about how I'm running this whole thing !
I suppose you should also know that the reason I'm trying to determin the filepath of the image that the Flash Front end is displaying is so users can hit
a "delete" button and remove that picture from their gallery.
Code: First is what I use to sort the data coming from php and set up the gallery (frame 1 timeline) and second is the code on the "next" button.
("LB" is the left "back" button btw).
Frame 1 timeline action
Code:
import mx.data.components.DataHolder;
piclist = _root.galpic;
allpics = _root.allpics;
photos = piclist.split(",");
howmany = allpics;
tellme = allpics +" to see";
user_num = _root.user;
if (owner_num == user_num) {
cool = "Hi "+_root.firstname+", this is your gallery of all the images you have ever uploaded.\rYou can delete images by clicking the button in the bottom right hand corner.\rBut think carefully because once they're gone - they're gone for good !";
setProperty("_root.deleteBtn", _visible, 1);
}
//trace(allpics);
//trace(photos);
var loadListener:Object = new Object();
loadListener.onLoadInit = function(mc:MovieClip) {
mc._x = (Stage.width/2)-(mc._width/2);
mc._y = (Stage.height/2)-(mc._height/2+69);
};
var mcLoader:MovieClipLoader = new MovieClipLoader();
mcLoader.addListener(loadListener);
var nextPhoto:String = photos[num];
var photoHolder:MovieClip = _root.createEmptyMovieClip("photoHolder", 1);
mcLoader.loadClip(nextPhoto, photoHolder);
num = ++num;
setProperty("LB", _alpha, "40");
_root.LB.enabled = 0;
setProperty("_root.backB", _visible, "0");
//cool = _root.galpic;
if (allpics==1) {
setProperty("LB", _alpha, "40");
setProperty("RB", _alpha, "40");
_root.LB.enabled = 0;
_root.RB.enabled = 0;
}
// display a message that this user has not uploaded any images yet
if (allpics == 0) {
gotoAndStop(19);
}
"Next" button code
Code:
on (release) {
var loadListener:Object = new Object();
loadListener.onLoadInit = function(mc:MovieClip) {
mc._x = (Stage.width/2)-(mc._width/2);
mc._y = (Stage.height/2)-(mc._height/2+69);
};
var mcLoader:MovieClipLoader = new MovieClipLoader();
mcLoader.addListener(loadListener);
var nextPhoto:String = photos[num];
var photoHolder:MovieClip = _root.createEmptyMovieClip("photoHolder", 1);
mcLoader.loadClip(nextPhoto, photoHolder);
num = ++num;
}
on (release) {
if (num == 1) {
setProperty("LB", _alpha, "40");
_root.LB.enabled = 0;
} else if (num == allpics) {
num = "0";
setProperty("LB", _alpha, "40");
_root.LB.enabled = 0;
} else {
setProperty("LB", _alpha, "100");
_root.LB.enabled = 1;
}
}
If you want to see the whole thing in action it's here:
www.shutterbugclub.com/main.php
Sign up - click "Be A Bug" (it's free of course and NO strings attached - I'll purge the whole db
when it goes live in a few weeks), upload a few pictures and check out your
own gallery and other members galleries (all me under various guises).
Should only take five minutes but it will give you a complete idea of what
it's all about.
Best wishes
Monty
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Here is a breakdown of your output -
del_pic = _root.galpic;
/members/1/images/31.jpg,/members/1/images/32.jpg,/members/1/images/33.png,/members/1/images/34.jpg,/members/1/images/35.png,
/members/1/images/36.png,/members/1/images/37.png,/members/1/images/38.jpg,/members/1/images/39.jpg,/members/1/images/40.jpg,
/members/1/images/41.jpg,/members/1/images/43.jpg
del_pic += tmp;
/members/1/images/31.jpg,/members/1/images/32.jpg,/members/1/images/33.png,/members/1/images/34.jpg,/members/1/images/35.png,
/members/1/images/36.png,/members/1/images/37.png,/members/1/images/38.jpg,/members/1/images/39.jpg,/members/1/images/40.jpg,
/members/1/images/41.jpg,/members/1/images/43.jpg
del_pic += len;
13
del_pic += (tmp[n][4][0])+newline; // should have added newline here
31
32
33
34
35
36
37
38
39
40
41
43
undefined
so as per your original question, the numbers are stored in Flash in the array
