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JavaScript - Guide To Iphone/ipad Web Development (safari)
I'm working on this project: http://bit.ly/tkrFsP
It already works more or less fine in: IE7, IE8, IE9, FF, Chrome, Safari and Opera. Problems start when we try that in iPhone or iPad. iPhone works almost fine (except lags and AJAX/jQuery problems) but in iPad it has broken left navigation, wrongly re-sized thumbnails and it displays in half of the viewport. Also, there are problems with smoothness of jQuery animations and with AJAX unlike in other browsers on other devices (like PC). Any ideas on how to fix that? I've flicked through this: 1. http://www.smashingmagazine.com/2010...tting-started/ 2. http://developer.apple.com/library/s...62/_index.html It seems like a good place to start but there's many information on iPad/iPhone development on apple.com and their solutions don't fix my problems. -------- Mo 1. Anyone could outline here some basic code principles for iPad/iPhone? 2. Why project sub-page displays 5 times as large as it should on iPhone? Adding this: <meta name="viewport" content="width=device-width" /> doesn't help much and it even makes website work worse. Adding this: <meta name="viewport" content="maximum-scale=1,user-scalable=yes,width=960" > seems like a better solution but it's not perfect either. 3. How iPad's fixed containers work? 4. Why there's horizontal scroll appearing even with overflow-x: hidden? Similar TutorialsHello I'm having problems with a very simple bit of Javascript not working with the latest version of Safari for ipads and iphones. The script in question is used as a 'previous image ' and 'next image' navigation facility, basically closing one pop-up window and opening up another, when viewing a photo gallery. It has worked perfectly for a number of years on all browsers. It is only the latest version of Safari for ipads and iphones where there's a problem. On an iphone, the new window unfortunately opens up in a new tab and the existing window fails to close. Mobile Safari soon reaches the maximum of 8 permissible tabs as a user moves through the photos gallery. On an ipad2, no new window opens and the existing window fails to close. the website is www.gethigh.co.uk Code:
}
function picPopup4(page,width,height){
//alert(scroll);
var a;
a = width / 2;
var b;
b = height / 2;
var LeftPosition = (screen.width/2) - a;
var TopPosition = (screen.height/2) - b;
window.open(page, "", "width="+width+",height="+height+",toolbar=no,header=no,location=no,resizable=yes,"+"left="+LeftPosition +",top="+TopPosition+",scrollbars=yes");
window.close();
}
and this is an example of the code creating the navigation within each pop-up window Code:
<tr>
<td align="center"><a class="link8" href="javascript:picPopup4('legslip1.html','560','770');" target="_self">
previous image</a> <a class="link8" href="javascript:window.close()">close
window</a> <a class="link8" href="javascript:picPopup4('breaking2.html','505','800');" target="_self">next
image</a></td>
</tr>
I'll come clean and admit I'm not a programmer and have a very basic and ancient understanding of HTML coding. My website must be approaching double digit years old (which will be immediately apparent if you view its structure). I can usually resolve most things, and maintain its functioanality when needs be, but this particular problem has got me stumped. I've come onto this forum to see if anyone could provide a simple work-around ? Or if anyone would know if this is a bug within Safari which may be rectified soon (a search through the Apple forums gave no clues). I'm loathed to make any major updates/changes to my site, as despite its age it renders beautifully on all browsers except the latest ipad/iphone Safari. Cheers and hopefully thanks in advance Garry .... Hi On the following URL on the iphone and Ipad the jqzoom script is showing the enlarged image on the left but works fine in IE, Chrome, Firefox etc. The script in use is jqzoom. http://tinyurl.com/bwcxf8c Any idea welcome. Thanks Roy Hi Guys, I've been searching the net for both examples and pluggins to create draggable divs and although I've found many, I cant find the effect I'm after. I want the div to slow down to a stop after it has been release like when you are scrolling on one of apples mobile devices. If anybody can point me in the right direction ill be very great full. hi, When I navigate to a page with Ajax on my iphone or ipad, it doesn't show up, page is just blank, I have checked for errors and there is no errors?! here is my Ajax code Code: function datecheckFunction(){
var datecheckRequest; // The variable that makes Ajax possible!
try{
// Opera 8.0+, Firefox, Safari
datecheckRequest = new XMLHttpRequest();
} catch (e){
// Internet Explorer Browsers
try{
datecheckRequest = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
try{
datecheckRequest = new ActiveXObject("Microsoft.XMLHTTP");
} catch (e){
// Something went wrong
alert("Your browser broke!");
return false;
}
}
}
// Create a function that will receive data sent from the server
datecheckRequest.onreadystatechange = function(){
if(datecheckRequest.readyState == 4){
var ajaxDisplay = document.getElementById('ajaxDiv');
ajaxDisplay.innerHTML = datecheckRequest.responseText;
}
}
var datepicker = document.getElementById('datepicker').value;
var queryString = "?datepicker=" + datepicker;
//Add the following line
datecheckRequest.open("GET", "http://www.affordableappliancerepairs.co.uk/admin/checkdate.php" + queryString, true);
datecheckRequest.send(null);
}
I have a simple play js button on my HTML page as well as embedded music. So when you are a computer the music autoplays then stops and you have the option to listen to it again with the js button. This "theoretically" will work fine for the iPhone and iPad because even though the embedded music isn't auto playing the user can still click the listen button and hear the music. It works on the iPhone perfectly but not the iPad. I'm at a loss. Here is my jscript: function FFFFSound(soundobj) { var thissound= eval("document."+soundobj); thissound.Play(); } My embedded music: <embed src="music/FFFFKids.mp3" autostart="true" loop="false" hidden="true"> <embed src="music/FFFFKids.mp3" autostart="false" loop="false" hidden="true" name="sound1"> And my button: <input type="button" value="Listen" onClick="FFFFSound('sound1')" class="listen_button"> You can view the page at feefifofun.com I am at a total loss..... thanks! Ok, so I have multiple issues, but this is the one I have not been able to work around. I'm building a simple website for personal use, so I know it only has to work on Safari for the iPad, a simple catalog of song charts for use on stage in my piano bar. Everything works GREAT in Safari/Chrome for Windows 7, but doesn't seem to quite work on Safari for iPad. The issue I'm having is I've set up a DIV with two image buttons on it to execute a ScrollBy command to scroll the page up or down depending on the button. Everything works great on Safari for Windows 7, as in I can keep scrolling down the page by pressing the scroll down button multiple times. On iPad, it only works once, and will not continue to scroll. I've also tried it in Atomic Lite for iPad, with the same effect. I've mocked up a simple page, to take all the other variables out. http://www.duelingpianopiano.com/jef...testscroll.htm Eventually, I will be installing it he http://www.duelingpianopiano.com/jef...testscroll.htm The code in the head tag is below: <code> <script language="JavaScript" type="text/javascript"> <!-- Copyright 2003, Sandeep Gangadharan --> <!-- For more free scripts go to http://sivamdesign.com/scripts/ --> <!-- var y1 = 510; // change the # on the left to adjuct the Y co-ordinate (document.getElementById) ? dom = true : dom = false; function hideIt() { if (dom) {document.getElementById("layer1").style.visibility='hidden';} } function showIt() { if (dom) {document.getElementById("layer1").style.visibility='visible';} } function placeIt() { if (dom && !document.all) {document.getElementById("layer1").style.top = window.pageYOffset + (window.innerHeight - (window.innerHeight-y1)) + "px";} if (document.all) {document.all["layer1"].style.top = document.documentElement.scrollTop + (document.documentElement.clientHeight - (document.documentElement.clientHeight-y1)) + "px";} window.setTimeout("placeIt()", 10); } // --> </script> <script language="JavaScript"> function scrollup(){ parent.scrollBy(0,-window.innerHeight-50); } function scrolldown(){ parent.scrollBy(0,window.innerHeight-50); } </script> </code> The code from the body tag: <code> <body topmargin="00" leftmargin="0" rightmargin="0" bottommargin="0" marginwidth="0" marginheight="0" link="#FFFFFF" vlink="#FFFFFF" alink="#FFFF00" bgcolor="#FFFFFF" "overflow: visible" onLoad="placeIt(); showIt()"> INSERT CONTENT HERE <div id="layer1" style="position:absolute; right:0; width:50px; height:150px; visibility:hidden"> <font face="verdana, arial, helvetica, sans-serif" size="2"> <div style="float:left; background-color: ; padding:0px; border:0px solid black"> <img src="upbutton.png" width=50 height=75 border="0" align="left" onClick="scrollup();"> <img src="downbutton.png" width=50 height=75 border="0" align="left" onClick="scrolldown();"> </div> </code> Like I said, it works just as needed in Safari/Chrome for Windows 7, but not on iPad. Doesn't seem to work in IE 8, but that doesn't bother me. I have not tested in FireFox. Your ideas are much appreciated. I'm not an Apple person, so maybe there is a well known issue with scrollBy and Safari for iPad, that I'm not aware of. If that is the case, if anyone has an idea for a direction for a workaround that would be great as well. Eventually, I would like to use the smooth scrolling scripts that I've seen out there, but that is way down the road. I'm more worried about the functionality as is. Hello Everybody, I have a scenario where in i have 2 divisions, TOP and BOTTOM. In the BOTTOM Division i have a list box and Submit button in a form. User can select an item from the list box and click on the submit button. After user clicks the submit button i want to display some data/graph in the bottom division. However with my current code i see that on clicking the submit button , the data is displayed on a fresh page. Please guide me if this is possible or should i use a different logic. The code goes here. Code: <html>
<head>
<TITLE> Display Graph </TITLE>
<script type="text/javascript">
function processData(form)
{
var BoardNumber = document.forms[0].elements[0].value;
var BoardIndex = document.forms[0].elements[0].selectedIndex;
alert("Selected board is :" + BoardNumber + ":Selected Index is :" + BoardIndex);
document.write("Trying to print some data : ");
document.write("<br>");
document.write("The board number is " + BoardNumber);
}
</script>
<style type="text/css">
body {
background-color : #fefefe;
font-family:arial , verdana, sans-serif;
text-align : center;
}
.page {
margin-bottom : 10px ;
text-align : left;
font-size: 12px;
background-color : 00ff00;
background-repeat:repeat-y;
border:1px solid #666666;
height : auto;
}
.Down {
margin-top : 10px ;
text-align : left;
font-size: 12px;
background-color : ff0000;
background-repeat:repeat-y;
border:1px solid #666666;
height : auto;
}
.header{ padding : 3px;
background-color:#f3f3f3; }
.content {padding : 10px;
margin-left : 100px;
}
</style>
</haed>
<body>
<div class = "page">
<div class = "header"><h1> My Company Name </h1> </div>
<div class = "content">
<!-- The main Page Goes here -->
<h2> Top DIVISION </h2>
<p>
This is test page. This is test page. This is test page. This is test page. This is test page. This is test page. This is test page. This is test page. This is test page. This is test page. This is test page. This is test page. This is test page. This is test page.
</p>
</div>
</div>
<div class = "Down" name="Down">
<h2> BOTTOM DIVISION </h2>
<p>
Down : I NEED TO DISPLAY DATA/GRAPH in the same division. Not in a fresh page????
<BR>
<B>
SELECT THE BOARD NUMBER and PRESS THE BUTTON "Process Request"
</B>
<form name = "SelectColor">
<select name = "boardnum">
<option selected = "selected " value = " " > select board </option>
<option value = "Board_7125">7125</option>
<option value = "Board_7325">7325</option>
<option value = "Board_7335">7335</option>
<option value = "Board_7340">7340</option>
<option value = "Board_7342">7342</option>
<option value = "Board_7400">7400</option>
<option value = "Board_7401">7401</option>
<option value = "Board_7405">7405</option>
<option value = "Board_7420">7420</option>
<option value = "Board_7550">7550</option>
</select>
<input type="button" name="process" id="process"
value="Process Request..." onclick="processData(this.form)" /></p>
</form>
</p>
</div>
</body>
</html>
Hi all, I'm currently building a new search engine that will search around 15,000 products and would like some general advice as to the best way to approach it. I want to offer instant results, so the user will click an icon and the results change, no submit buttons or postbacks. My database is MS SQL and my frontend is ASP.Net, but for this I'm looking to develop the majority of the search functionality in JavaScript. What I'm asking really is what people recommend for the best way to approach providing instant results. My current thinking is an initial database query loads the data into XML, then use JavaScript and XSLT to filter the XML and display the results, then as filters change these can be handled by the JavaScript and XSLT rather than going back to the database. Does anyone have any general advice on the best performing way to provide this sort of functionality that ultimately will give the quickest results? Thanks in advance! Hello, my name is Tristan (Tsuki_yima) and I would like to get in to game design and Java Script in general, and i have no idea where to start, I am (for the most part) fluent in doing CSS and HTML I can design websites pretty well. But i want to start making games (not really for profit just for fun and what not) but i have no idea where to start using Unity and Java Script. Wondering if somebody can help.
Reply With Quote 01-15-2015, 02:53 PM #2 sunfighter View Profile View Forum Posts Senior Coder Join Date Jan 2011 Location Missouri Posts 4,830 Thanks 25 Thanked 672 Times in 671 Posts Unity costs a lot of money. You should know all about it and have some games under your belt before buying. IMHO, you should learn C++ or C# or javascript and play with it first. Javascript would be the simplest. Then google javascript for game design or something similar. Many places to learn JS W3Schools Online Web Tutorials has both JS and Jquery. I found this Intro To Programming For Games With JavaScript - @jessefreeman | Jesse Freeman when I googled. Maybe try your hand at a few things first, like Tick-Tack-Toe or Hangman. OK, done babbling. Just go for it. hi all, I want to be able to move an image from a left or right when tilting my ipad. when tilted the the right the image moves to the right according to the angel tilted and do the same to the other direction. the image is doubled (or more) the size of the stage (1024x768). I can't use Flash for obvious reasons so looking at other options. thanks Quick question, I found this code snip on stackoverflow and it has one little bug. When you touch / move in the element, the console.log is being fired. If you continue to drag / move outside the element, the console.logs still continue to fire. So it seems that once the event is started it's no longer confined to the element its being assigned to. Any ideas on how to keep it bound to the element? Here is the code: Code: $('#someElm').bind('touchmove',function(e){
e.preventDefault();
var touch = e.originalEvent.touches[0] || e.originalEvent.changedTouches[0];
console.log(touch.pageY+' '+touch.pageX);
});
Thanks in advanced. The web page belows works OK in IE and FireFox on XP and Windows7 It does NOT work on IPAD using Safari. Question: How can I delete the new window("IPADREPORT") when I run it the second, third,fourth, etc time ? How can I get the window name( "IPADREPORT") to see if it exists? SUggestions? TIA, Steve42 <code> [aSafari.html] <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <html lang="en"> <head> <script language="JavaScript" type="text/javascript"> function pReport(){ // 1-17-12 var menuWindow = open("","ipadreport"); // 1-17-12 menuWindow.close(); // above closes previous report window var menuWindow = window.open('','ipadreport');// 1-17-12 document.ipadreport.submit(); menuWindow.focus(); } </script> <title>Ipad_PopUp_Test</title> </head> <body> <br><br> <form method=post name="ireport" target="ipadreport" action="http://myreport.asp"> <input type="hidden" name="reporttest" value="apple"> <a href='javascriptReport()'> Create Report</a> </form> </body> </html> </code> hi, im new to javascript, and programming on the whole, what software do you all use for composing code? this seems to me like somewhat of a common question, but i did a search using the search function and couldnt find any threads on this. sorry if i was being inept and if this question really has been asked a lot before. in that case, help is still greatly appreciated though. In javascript normally when you call .focus() on a textbox id, it places the cursor inside the textbox. Trying the same on ipad does not place the cursor in the text field and the keypad does not pop up. How to place cursor and bring up the keypad on ipad using javascript? Any help is appreciated Hi there, I'm putting together a GeoCaching book for iPad that I intend to shop around upon completion. I have hit a stumbling block though. I want the co-ordinates in the PDF to open the Google Earth application. Using the current hyperlinks, the iPad links to Google Maps instead. Is it possible, using Javascript, to create a code that will directly open the Google Earth application and take the reader to those exact co-ordinates? Thanks in advance, WR I am working on a website that features a custom javascript enabled audio player with an animated playhead to follow along with the provided spectrogram. An example of this is included below. http://cetus.ucsd.edu/voicesinthesea.../humpback.html I am having difficulty figuring out why the audio/spectrogram player does not work on an iPad. This component was built by a developer who I am not longer in contact with, thus I am in urgent need of some advice/wisdom. Thank you! Hi developers Needing some help. My javascript/css drop down menu is not working on the ipad or other touch screen devices. It works fine on laptops & desktops which use a mouse. I've discovered that this is because touchscreen devices like the Ipad do not recognise the onmouseover/onmouseout event handler that my script relies on. Is there any way I can modify my script so that it is compatiable both with traditional devices and touchscreen devices? The code I am using is: <script type="text/javascript"><!-- var timeout = 500; var closetimer = 0; var ddmenuitem = 0; // open hidden layer function mopen(id) { // cancel close timer mcancelclosetime(); // close old layer if(ddmenuitem) ddmenuitem.style.visibility = 'hidden'; // get new layer and show it ddmenuitem = document.getElementById(id); ddmenuitem.style.visibility = 'visible'; } // close showed layer function mclose() { if(ddmenuitem) ddmenuitem.style.visibility = 'hidden'; } // go close timer function mclosetime() { closetimer = window.setTimeout(mclose, timeout); } // cancel close timer function mcancelclosetime() { if(closetimer) { window.clearTimeout(closetimer); closetimer = null; } } // close layer when click-out document.onclick = mclose; //--></script> Which drives the following html: <ul id="links"> <li><a href="whats_new/whats_new.html">what's new</a></li> <li><a href="#" onmouseover="mopen('m1')" onmouseout="mclosetime()">clothing</a> <div id="m1" onmouseover="mcancelclosetime()" onmouseout="mclosetime()"> <a href="clothing/clothing_page1.html">clothing</a> </div> </li> <li><a href="#" onmouseover="mopen('m2')" onmouseout="mclosetime()">accessories</a> <div id="m2" onmouseover="mcancelclosetime()" onmouseout="mclosetime()"> <a href="bags/bags_page1.html">bags</a> <a href="jewellery/jewellery_page1.html">jewellery</a> </div> </li> </ul> Any suggestions would be much appreciated. Thank you. Nonye What would be the best way to get data for a mobile site. I've tried using Jquery $.ajax to bring in the data from a php file. It seems to work however it takes some time to load without a way to really give a progress meter. I was wondering what the fastest way to do this would be. For instance it loads and loads then after a long while the alert(); pops up and the data loads into the page. Ultimately i was thinking i could use the ajax request to read in the data from the mysql database server, then transfer it to localstorage, im using HTML5 primarily for the development also just for reference. Somewhat new to mobile development i was just wondering if anyone had a starting point for me to look at and go from there. Code: $(document).ready(function($){
var dataret = 0;
$.ajax({
type: 'POST',
url: 'mobile.php',
beforeSend: function(){
$('#status').show();
},
success: function(data){
//initialize localstorage here
alert('success');
// if it takes as long as it does, a few minutes, at least show a loading bar...
$('#progress').progressbar({
});
},
dataType: 'json'
});
});
Thanks in advance! I am trying to create a mobile safari compatible "slide to unlock" type deal, like the one on jailbreakme.com, i have found many that are compatible with google chrome, or firefox, but none with mobile safari, any help?
I want to Create a simple scanner app for the iPhone so when someone scans a URL embedded in a QR code, it opens the browser and loads that URL.
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