I have to create an mobile flex application with tabbed navigator view. One of the view must satisfy this condition: when the view is selected, an image will appear for one second and then disappear for half a second, then reappear at a random position on the screen of the view. This will repeat until another view is selected.
I'm new to Mobile Flex and I need your help.
Thanks you in advance.
Best regards,
HBLE
Use enterFrame event or a Timer to hide/show the image.
Set the image x and y properties to show the image at a specific position
Use Math.random() to generate a random number in the interval [0,1]
Important:
When tab is active call init();
When changing to other tab do not forget to stop the timer and remove event listeners.
(for performance reasons and to avoid memory leaks)
Sample code:
var isVisible:Boolean = false;
function init():void
{
// we show / hide with a delay of 1 second
var t:timer = new Timer(1000);
t.addEventListener(TimerEvent.Timer, onTimer);
t.start();
}
function onTimer(event:TimerEvent):void
{
if(isVisible)
{
hideImage();
}
else
{
showAndMoveImage();
}
isVisible = !isVisible;
}
function hideImage():void
{
myImage.visible = false;
}
function showAndMoveImage():void
{
// we reposition image in screen, assume image size is smaller then screen
myImage.x = Math.random() * (stage.width - myImage.width);
myImage.y = Math.random() * (stage.height - myImage.height);
myImage.visible = true;
}
Related
I have two objects in right and left side of window.
I want to zoom those objects individually when I hover it.
var itsLeftControls, itsRightControls;
itsRightControls = new THREE.TrackballControls(itsRightCamera);
itsLeftControls = new THREE.TrackballControls(itsLeftCamera);
document.getElementById('SubContainerLeft').onmouseover = function () {
aMouseOverActivate(itsLeftControls);
aMouseOverDeactivate(itsRightControls);
};
document.getElementById('SubContainerRight').onmouseover = function () {
aMouseOverActivate(itsRightControls);
aMouseOverDeactivate(itsLeftControls);
};
function aMouseOverActivate(theControl)
{
theControl.zoomSpeed = 0.8;
}
function aMouseOverDeactivate(theControl)
{
theControl.zoomSpeed = 0.0;
}
function animateLeft()
{
requestAnimationFrame(animateLeft);
renderLeft();
}
function renderLeft()
{
itsLeftControls.update();
itsLeftRenderer.render(itsLeftScene, itsLeftCamera);
}
function animateRight()
{
requestAnimationFrame(animateRight);
renderRight();
}
function renderRight()
{
itsRightControls.update();
itsRightRenderer.render(itsRightScene, itsRightCamera);
}
if I hover in left side and try to zoom with mouse scrolling wheel, it is working fine. after that when I hover in right side, I can see that same zooming effect in right side also without scrolling mouse.
How to fix this?
TrachballControls take a optional second argument that is the dom element onto which it will attach the mouse event listeners.
If this argument is not supplied, it will attach the event listeners to the document.
This means that both your trackball controls are listening for events on the document (rather than their respective containers which I think you want.)
So just send your scene container divs as the second arguments to TrackballControlls and you should be good to go.
var leftContainer = document.getElementById('SubContainerLeft');
var rightContainer = document.getElementById('SubContainerRight');
var itsRightControls = new THREE.TrackballControls(itsRightCamera, rightContainer);
var itsLeftControls = new THREE.TrackballControls(itsLeftCamera, leftContainer);
I have number of records and it have option like click and drag to change places like music player.
In this case, if 10 records is there it shows 4 in screen we have to scroll the screen to see another record.
For that , if I have to change my 10 record to first , click the 10th record and if I go up the page must be scroll to top.
any idea? for this auto scroll ..answer or suggestion comment please.
//page view is may ui scroll view
//counter for if my image focus on last image then return on 1 img
//new PointF((float)(your image size * count),your top margin or your fram y);
int count = 0;
public async void StartTimer()
{
await Task.Delay(3000); //3 sec
count += 1;
if (count == 5)
{
count = 0;
}
var bottomOffset = new PointF((float)(UIScreen.MainScreen.Bounds.Width * count),0);
pageview.SetContentOffset(bottomOffset, animated: true);
StartTimer();
}
public override void ViewDidLoad(){
StartTimer();
}
In my unity based Android game I wish to add the image dynamically based on the number of questions in each level. The image is shown for reference. Each correct answer will be marked in green and the wrong one in red. I am new to unity and trying hard to find steps to achieve this.
Any help with an example for this requirement will be a great help.
I once wrote a script for dynamically creating buttons based on each level. What I did was creating the first button on the scene and adding the other buttons based on the first one. Below is the shell of my code:
// tutorialButton and levelButtons are public variables which can be set from Inspector
RectTransform rect = tutorialButton.GetComponent<RectTransform> ();
for (int i = 1; i < levelSize; i++) {
// Instantiate the button dynamically
GameObject newButton = GameObject.Instantiate (tutorialButton);
// Set the parent of the new button (In my case, the parent of tutorialButton)
newButton.transform.SetParent (levelButtons.transform);
//Set the scale to be the same as the tutorialButton
newButton.transform.localScale = tutorialButton.transform.localScale;
//Set the position to the right of the tutorialButton
Vector3 position = tutorialButton.transform.localPosition;
position.x += rect.rect.width*i;
newButton.transform.localPosition = position;
}
I am not exactly sure if this is the right approach as it may or may not give unexpected results depending on different screen sizes and your canvas, but hopefully it gives you an idea about dynamically creating objects.
I'm not sure if this helps, but if you have all the images in the scene under a canvas, with this you just need to drag the canvas on the script and use
//level-1 is to keep the array notation
FindObjectOfType<NameOfScript>.ChangeColor(level-1,Color.green);
or you can do also
//level-1 is to keep the array notation
FindObjectOfType<NameOfScript>.RevertColor(level - 1);
This is the script:
//Keep it private but you still see it in inspector
//#Encapsulation :)
[SerializeField]
private Canvas _canvas;
private Image[] _images;
//keep the original colors in case you want to change back
private Color[] _origColors;
void Start () {
_images = GetComponentsInChildren<Image>();
_origColors = new Color[_images.Length];
for (int i = 0; i < _images.Length; i++)
{
_origColors[i] = _images[i].color;
}
}
//Reverts the color of the image back to the original
public void RevertToOriginal(int imageIndex)
{
_images[imageIndex].color = _origColors[imageIndex];
}
//Change to color to the coresponding index, starts from 0
public void ChangeColor(int imageIndex, Color color)
{
_images[imageIndex].color = color;
}
P.S If you want it visible only at the end you can make a method where you enable = (true or false) for the canvas. So you keep it false till the end of the level and you make it true when you want to show, while after every answer you call the ChangeColor depending on the result.
To make it easier you can use:
NameOfScript variableName = FindObjectOfType<NameOfScript>();
and after that you just call
variableName.ChangeColor(level - 1, Color.green);
Also it does not matter where you put the script. I would make some kind of manager(empty GameObject) in the scene and put it there.
With ref. to above subject, I am using wookmark plugin to scroll our home page data dynamically….I have studied the tutorial provided on wookmark and I m using the exact script provided by wookmark and working fine shorts of not 100% working.
Things it stucks when it reaches at bottom of the window then we slightly press the up arrow key, that loads the products again and this is happens randomly some time it scrolls perfectly and some time it stucks and if presses up arrow key it starts working again.
Kindly help me out where I m going wrong. Kindly provide me the easy working script for the same.
I m using following code :
(function ($) {
$('#main').imagesLoaded(function () {
var handler = null;
// Prepare layout options.
var options = {
itemWidth: 200, // Optional min width of a grid item
autoResize: true, // This will auto-update the layout when the browser window is resized.
container: $('#main'), // Optional, used for some extra CSS styling
offset: 20, // Optional, the distance between grid items
outerOffset: 20, // Optional the distance from grid to parent
flexibleWidth: 300 // Optional, the maximum width of a grid item
};
function applyLayout() {
$('#main').imagesLoaded(function () {
// Destroy the old handler
if (handler.wookmarkInstance) {
handler.wookmarkInstance.clear();
}
// Create a new layout handler.
handler = $('#display li');
handler.wookmark(options);
});
handler.wookmark(options);
}
/**
* When scrolled all the way to the bottom, add more tiles.
*/
function onScroll(event) {
// Check if we're within 100 pixels of the bottom edge of the broser window.
var winHeight = window.innerHeight ? window.innerHeight : $(window).height(); // iphone fix
//var closeToBottom = ($(window).scrollTop() >= $((document)).height() - $((window)).height() - $("#footer").height() - 500); //(($(window).scrollTop() - 100)); //+ "%"
var closeToBottom = ($(window).scrollTop() + winHeight > $(document).height() - 100);
if (closeToBottom) {
// Get the first then items from the grid, clone them, and add them to the bottom of the grid.
var items = $('#display li'),
firstTen = items.slice(0, 10);
//$('#display').append(firstTen.clone());
applyLayout();
}
};
// Capture scroll event.
$(window).bind('scroll', onScroll);
// Call the layout function.
handler = $('#display li');
handler.wookmark(options);
});
$(window).load(function () {
handler.wookmark(options);
});
})(jQuery);
If you commented out
//$('#display').append(firstTen.clone());
then the new items will not be loaded on the end of list. You need to uncomment that line to get new items.
In real life instead of
var items = $('#display li'),
firstTen = items.slice(0, 10);
$('#display').append(firstTen.clone());
you would need a code that will load new items.
Also I think it might make sense to change > to >=
var closeToBottom = ($(window).scrollTop() + winHeight >= $(document).height() - 100);
to load new items if scroll position is more or equal to the height of window - 100, where 100 is just some value - you could try 200 or even more to see if it will work better for you.
this is a post I have made on the adobe forum...
I'm newish to flash and i'm doing a presentation as part of a University assignment.
My problem is basically this. As part of my presentation I have a photo gallery which uses thumbnail images as buttons and then a UI loader to load a pop up version of the larger image from my webserver - as per https://www.youtube.com/watch?v=Peo_nT9HHa0
The image was created on photoshop. It is a .jpg and has text within the image that describes underneath it what the image is all about. The text within photoshop is set to anti-aliasing 'smooth' and when I test the movie within flash, the text underneath the image looks fine - just as it does in photoshop.
However, when I publish and upload the .swf file to my webserver and view the image through a browser, the text looks awful - all jaggy and broken if that makes sense.
Any ideas why?
I was given a reply of...
If you are loading the images dynamically then you will have to set the smoothing property true after the file(s) has been loaded. So if you don't currently have a listener for the images finishing loading, you will need one, and an event handler function to assign the smoothing property to true for each of them.
Can anyone help with creating the actionscript for this listener and event handler function?
I basically have a gallery movie clip with buttons that act as clickable thumbnails. The actionscript for that is...
btnImage1.addEventListener(MouseEvent.CLICK, loadimage1);
function loadimage1 (event:MouseEvent):void{
imagetxt.text = "a";
togglewindow.gotoAndPlay(2)
}
and then a UI loader that displays the larger image when a thumbnail is clicked
if (MovieClip(this.parent).imagetxt.text == "a"){
var imgurl:String ="IMAGE URL";
var myrequest:URLRequest = new URLRequest(imgurl);
myloader.load(myrequest);
}
As indicated, you should always turn smoothing on if the image is going to be scaled at all. It uses a different scaling algorithm that blurs pixels rather than deletes them. Take note that it is substantially slower to smooth, but on modern machines you shouldn't notice the difference unless you are doing it to thousands of images all at once.
After instantiation, add a Event.COMPLETE handler to Loader.contentLoaderInfo.
var myLoader = new Loader();
myLoader.contentLoaderInfo.addEventListener(Event.COMPLETE, loaderCompleteHandler);
Then in the handler, you can access the Bitmap and turn smoothing on.
function loaderCompleteHandler(e:Event):void {
var image:Bitmap = myLoader.content as Bitmap; //Loader.content is typed as a DisplayObject, so we need to cast it as a Bitmap
image.smoothing = true;
}
And that should solve the issue. You may need to add the image object to the stage rather than the myLoader object. I don't think you'll have to, but I can't remember.
Just add event an event listener to your loader. Like this:
load.addEventListener(Event.COMPLETE,doneLoad);
then in the doneLoad function get the event.data and cast it to Bitmap and set the bitmap smoothing to true:
var myBitmap:Bitmap= e.target.data as Bitmap;
myBitmap.smoothing=true;
//add bitmap to parent ....
I wrote you universal method for loading images, you should pass 3 arguments to the method: holder for big images, image path, and rectangle to restrict image bounds and resize them. This method should be sufficient for your task.
private function loadImage(holder:DisplayObjectContainer, path:String, bounds:Rectangle):void {
var loader:Loader = new Loader();
loader.contentLoaderInfo.addEventListener(Event.COMPLETE, function (e:Event):void {
var bitmap:Bitmap = loader.content as Bitmap;
if (bitmap != null) {
bitmap.smoothing = true;
//Resize bitmap to fit bounds
var availableRatio:Number = bounds.width / bounds.height;
var componentRatio:Number = bitmap.width / bitmap.height;
if (componentRatio > availableRatio) {
bitmap.width = bounds.width;
bitmap.height = bounds.width / componentRatio;
} else {
bitmap.width = bounds.height * componentRatio;
bitmap.height = bounds.height;
}
//Clear previous
var i:uint, len: uint = holder.numChildren, old: Bitmap;
for(i; i < len; ++i){
old = holder.removeChildAt(0) as Bitmap;
old.bitmapData.dispose();
}
//Here you can add some appear animation
bitmap.x = bounds.x + ((bounds.width - bitmap.width) >> 1);
bitmap.y = bounds.y + ((bounds.height - bitmap.height) >> 1);
holder.addChild(bitmap);
}
});
loader.load(new URLRequest(path));
}
Usage:
loadImage(myContainer, "Path-to-Image", new Rectangle(20, 20, 400, 200));