javascript - Is there a way to know when all the images have been downloaded from the server? -


this question has answer here:

i have simple html page want load stack of images. , want display 1 of them according user's cursor on screen. i'm trying :

http://test.vostrel.net/jquery.reel/example/object-movie-camera-sequence/

i in 2 steps, in first 1 load low resolution images (60 images in less 2 seconds) , in second 1 when user click first time swap low res high resolution images (60 images in 10 seconds).

those 2 functions :

function loadimages() {     var imagesdom;     (var j = 0 ; j < directoriesnumber ; j++) {         imagesdom = new array();         (var = 1 ; < imagenumber + 1 ; i++) {             images[i] = imagedirectory[j] + "/" + imagebasename + twodigits(i) + imageextension;         }         (var = 1 ; < imagenumber + 1 ; i++) {             imagesdom[i] = new image();             imagesdom[i].id = "image" + j + "_" + i;             imagesdom[i].src = images[i];             $("#cadre").append(imagesdom[i]);         }     } }  function loadimageshigh() {     (var j = 0 ; j < directoriesnumber ; j++) {         (var = 1 ; < imagenumber+1 ; i++) {             images[i] = imagedirectoryhigh[j] + "/" + imagebasename + twodigits(i) + imageextension;         }         (var = 1 ; < imagenumber+1 ; i++) {             $("#image" + j + "_" + i).attr("src",images[i]);         }     } }

so question how can monitor downloads of images on client side : 4 out of 60 images loaded please wait...

i have checked : is there way determine when 4 images have been loaded using js? src written in html.

solution, aaron digulla, simple adding following event listener before assigning value src:

    $(imagesdom[i]).load(function () {             console.log("loaded");         }     );

thanks reading.

before assigning value src, attach event listener image. you'll need 2 global variables contain total image count , number of images have been loaded.

the question is there way determine when 4 images have been loaded using js? contains several examples how event listener looks like.

[edit] op used

$(imagesdom[i]).load(function () {console.log("loaded")});

Comments

Post a Comment

Popular posts from this blog

google app engine - 403 Forbidden POST - Flask WTForms -

i have flask application running on google app engine. trying submit form built using wtform , keep getting following error. 403 forbidden: don't have permission access requested resource. either read-protected or not readable server. location.html (part of code) <form method=post action="/home/location"> .... <button type="submit" class="btn btn-primary" value="submit"> directions </button> </form> main.py @app.route('/home/location', methods=['post', 'get']) def location(): form = cfcdirections.direction(request.form) print(request.method) if request.method == 'post' , form.validate(): print("after if") directions = cfcdirections() street_no = directions.no street = directions.street suburb = directions.suburb postcode = directions.postcode ...
Read more

Android layout hidden on keyboard show -

i have strange problem layout. when tap on edittext , keyboard shown edittext stay on bottom , when tap on to hide keyboard , keyboard hides , edittext go should when want input text. when tap again, keyboard shown , edittext goes down behind keyboard... <relativelayout android:layout_width="match_parent" android:layout_height="match_parent" > <scrollview android:layout_width="match_parent" android:layout_height="fill_parent" android:above="@+id/rl_commands"> <textview android:layout_width="match_parent" android:layout_height="wrap_content"/> </scrollview> <relativelayout android:layout_width="match_parent android:layout_height="24dp" android:id="@+id/rl_commands" android:alignparentbottom="true"> ...
Read more

Parse xml element into list in Python -

i've been trying days store list of coordinates list in python. i've tried minidom, xmlreader, , few others. i'm doing wrong, i'm on deadline , need help. <?xml version="1.0" encoding="utf-8"?> <kml xmlns="http://www.opengis.net/kml/2.2" xmlns:gx="http://www.google.com/kml/ext/2.2" xmlns:kml="http://www.opengis.net/kml/2.2" xmlns:atom="http://www.w3.org/2005/atom"> <document> <name>kmlfile</name> <style id="s_ylw-pushpin_hl"> <iconstyle> <scale>1.3</scale> <icon> <href>http://maps.google.com/mapfiles/kml/pushpin/ylw-pushpin.png</href> </icon> <hotspot x="20" y="2" xunits="pixels" yunits="pixels"/> </iconstyle> </style> <stylemap id="m_ylw-pushpin"> ...
Read more