First time here? First time here? Newsletter Signup Newsletter
Login | Register | 651326 Members and growing!
Search tutorials
Author: Patrick Mineault

Step 4: Putting it all together

All right, we've got plenty of pretty radio buttons now, but the problem is, they don't do anything! Let's determine what our parent radio button group must be able to do.

First, it must be able to respond properly to the reportClick() function we defined earlier. This function must be able to select the clicked radio button, if it's not selected already.

We also need to be able to select a radio button by default. Finally, our parent clip should be able to tell us which radio button is selected.

Let's see how this all translates into actionscript. The old parts of the script are grayed out:

onClipEvent(load){

	labels = new Array();

	labels[0] = "potato";
	labels[1] = "potato";
	labels[2] = "potato";
	labels[3] = "Zimbabwe";
	numButtons = labels.length;

	vSpacing = 20;
	default = 3;

	for(i = 0; i < numButtons; i++){
		if(i != 0){
			radioButton0.duplicateMovieClip("radioButton" add i, i);
			this["radioButton" add i]._y += i*vspacing;
		}
		this["radioButton" add i].label = labels[i];
	}

	select(default);

	function reportClick(clicked){

		if(clicked != selected){

			select(clicked);

		}
	}

	function select(clicked){

		for(i = 0; i < numButtons; i++){

			this["radioButton" add i].gotoAndStop(1);

		}
		this["radioButton" add clicked].gotoAndStop(2);
		selected = clicked;

	}

	function getSelectedNum(){

		return selected;

	}

	function getSelectedLabel(){

		return labels[selected];

	}
}

Let's concentrate on the new parts of the script. We start off by defining the default selected option, in this case radio button #2. Moving down a bit, we make a call to the select function in order to select this default option.

What this function does, as you can see, is that it first loops through all of the radio buttons and unselects them one by one by sending them to their first frame. Next, it simply selects the appropriate radio button by moving it to its second frame, and makes sure to remember which radio button is selected by placing its number in the selected variable.

Our reportClick() function also uses the select() function. It simply checks if the radio button that called it was already clicked, and it not, it asks the select() function to select it.

Finally, we added two extra functions, getSelectedNum() and getSelectedLabel(), in order to retrieve information from our radio button group, that is, the number of the selected radio button and its label.

In the sample movie at the top, I named my group of radio buttons "groupOfRB", and simply made a call to groupOfRB.getSelectedNum() and groupOfRB.getSelectedLabel() in order to know what option you had selected. Knowing this, I produced appropriate feedback for the selected options.

» Level Intermediate

Added: 2001-12-05
Rating: 6.8 Votes: 30
(10 being the highest)
» Author
Patrick is a bored, bored 19 year old guy in desperate need of a girlfriend. He enjoys Flash, helping other people by writing tutorials, and has an almost creepy affection for blue squares. Come on girls, what are you waiting for?
» Download
Download the files used in this tutorial.
» Forums
More help? Search our boards for quick answers!

Comments

  • There are no comments yet. Be the first to comment!

  • You must have javascript enabled in order to post comments.

Leave a Comment
  • Your email address will not be published. All fields are required.
Featured Flash FLA
» Author: Inocreato
» Title: RaiseTheBlocks
» Description: Raise all the blocks to win the game
Featured Sound Loops
Image for equalize

Audio Player

» Author: TomCat Carty
» Title: The Wood
» Description: Just a little game ending or it can maybe be looped. Recorders with music box and percussion to give the feel of well, I don't know, the woods? Free to use, just credit me. thank you
Latest Font
» Author: Fábio FAFERS
» Description: I created this font for free use. Everyone can apply it in personal or business texts. Its free, but I want to be communicated in case of business use. Donations are accepted to keep the project of free fonts alive! Thank you all
Featured Sound Fx
Image for equalize

Audio Player

» Author: Davisigner
» Description: Hmm... what to say about this one? It's reminiscent of the closing notes of the opening music from the Three Stooges done in a church organ style with a closing cymbal crash. I'll give this one away gratis, but feel free to check out my free loops and potential upcoming license-mandated ones over in the respective part of Flashkit.