We have been playing around with the canvas element, but are encountering sluggishness on Mobile Safari whereas the app works smoothly on the desktop.
The test app is very primitive. It just lets the user draw a line using the mouse on a desktop or a finger on smart phones.
In Mobile Safari, the drawing of the line is often very jerky. The first bit of a line will render in real-time, but the rest won't render until after the finger is lifted from the screen.
Any ideas why?
Code below.
HTML:
<!DOCTYPE html>
<html>
<head>
<link rel='stylesheet' href='http://code.jquery.com/mobile/1.0/jquery.mobile-1.0.min.css' />
<script src='http://code.jquery.com/jquery-1.6.4.min.js'></script>
<script src='http://code.jquery.com/mobile/1.0/jquery.mobile-1.0.min.js'></script>
<style type='text/css'>
#canvas { border:1px solid red }
</style>
</head>
<body>
<div id='draw_page' data-role='page'>
<canvas id="canvas" width="500" height="350"></canvas>
</div>
<script type="text/javascript">
$('#draw_page').live('pageinit', function() {
prep_canvas();
});
</script>
</body>
</html>
JavaScript:
var clickX = new Array();
var clickY = new Array();
var clickDrag = new Array();
var paint;
var canvas;
var context;
function prep_canvas() {
canvas = $('#canvas')[0];
context = canvas.getContext("2d");
}
$('#canvas').live('vmousedown', function(e){
var mouseX = e.pageX - this.offsetLeft;
var mouseY = e.pageY - this.offsetTop;
paint = true;
addClick(e.pageX - this.offsetLeft, e.pageY - this.offsetTop);
redraw();
});
$('#canvas').live('vmousemove', function(e){
if(paint){
addClick(e.pageX - this.offsetLeft, e.pageY - this.offsetTop, true);
redraw();
}
});
$('#canvas').live('vmouseup', function(e){
paint = false;
});
function addClick(x, y, dragging)
{
clickX.push(x);
clickY.push(y);
clickDrag.push(dragging);
}
function redraw(){
canvas.width = canvas.width; // Clears the canvas
context.strokeStyle = "black";
context.lineJoin = "round";
context.lineWidth = 2;
for(var i=0; i < clickX.length; i++)
{
context.beginPath();
if(clickDrag[i] && i){
context.moveTo(clickX[i-1], clickY[i-1]);
}else{
context.moveTo(clickX[i]-1, clickY[i]);
}
context.lineTo(clickX[i], clickY[i]);
context.closePath();
context.stroke();
}
}
I followed this: http://dev.opera.com/articles/view/html5-canvas-painting/ and it works fluidly on the phone (you'll see a commented out line for img_update() which is used in the two canvas method mentioned by BumbleB2na...but I wasn't using any shapes, just lines, so left it out)
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="width=device-width, user-scalable=no,initial-scale = 1.0">
<link rel="apple-touch-icon" href="touch-icon-iphone.png" />
<link rel="apple-touch-icon" sizes="72x72" href="touch-icon-ipad.png" />
<link rel="apple-touch-icon" sizes="114x114" href="touch-icon-iphone4.png" />
<link rel="apple-touch-startup-image" href="startup-iphone.png">
<meta name="apple-mobile-web-app-capable" content="yes" />
<meta name="apple-mobile-web-app-status-bar-style" content="black" />
<title>Untitled Document</title>
<style type="text/css">
body {background:#ccc; margin:0; padding:0}
html {margin:0; padding:0;}
#container { position: relative; margin:0; padding:0px; }
#canvas { border: 1px solid #000; background-color:#FFF; position:relative; width:298px; margin-left:11px; margin-top:5px; }
</style>
</head>
<body onload="listen()">
<div id="container">
<canvas id="canvas" width="298" height="298">
</canvas><br/>
<button onclick="clearImage()">Clear</button>
</div>
</body>
<script type="text/javascript">
var canvas = document.getElementById('canvas');
if(canvas){var context= canvas.getContext('2d');}
var tool;
tool = new tool_pencil();
document.body.addEventListener('touchmove',function(event){ event.preventDefault(); },false);
function listen(){
canvas = document.getElementById('canvas');
if(canvas){
context= canvas.getContext('2d');
context.fillStyle = "rgb(255,255,255)";
context.fillRect(0, 0, canvas.width, canvas.height);
iphone = ((window.navigator.userAgent.match('iPhone'))||(window.navigator.userAgent.match('iPod')))?true:false;
ipad = (window.navigator.userAgent.match('iPad'))?true:false;
if(iphone||ipad){
canvas.addEventListener('touchstart', ev_canvas, false);
canvas.addEventListener('touchend', ev_canvas, false);
canvas.addEventListener('touchmove', ev_canvas, false);
}
else{
canvas.addEventListener('mousedown', ev_canvas, false);
canvas.addEventListener('mousemove', ev_canvas, false);
canvas.addEventListener('mouseup', ev_canvas, false);
}
}
}
function tool_pencil () {
var tool = this;
this.started = false;
this.mousedown = function (ev) {
context.beginPath();
context.moveTo(ev._x, ev._y);
tool.started = true;
};
this.mousemove = function (ev) {
if (tool.started) {
context.lineTo(ev._x, ev._y);
context.stroke();
}
};
this.mouseup = function (ev) {
if (tool.started) {
tool.mousemove(ev);
tool.started = false;
//img_update();
}
};
this.touchstart = function (ev) {
ev.preventDefault();
context.beginPath();
context.moveTo(ev._x, ev._y);
tool.started = true;
};
this.touchmove = function (ev) {
ev.preventDefault();
if (tool.started) {
context.lineTo(ev._x, ev._y);
context.stroke();
}
};
this.touchend = function (ev) {
ev.preventDefault();
if (tool.started) {
tool.started = false;
}
};
}
// The general-purpose event handler. This function just determines the mouse position relative to the canvas element.
function ev_canvas (ev) {
iphone = ((window.navigator.userAgent.match('iPhone'))||(window.navigator.userAgent.match('iPod')))?true:false;
ipad = (window.navigator.userAgent.match('iPad'))?true:false;
if (((iphone)||(ipad))&&(ev.touches[0])){ //iPad
ev._x = ev.touches[0].clientX;
ev._y = ev.touches[0].clientY;
}
else if (ev.layerX || ev.layerX == 0) { // Firefox
ev._x = ev.layerX;
ev._y = ev.layerY;
}
else if (ev.offsetX || ev.offsetX == 0) { // Opera
ev._x = ev.offsetX;
ev._y = ev.offsetY;
}
// Call the event handler of the tool.
var func = tool[ev.type];
if (func) {
func(ev);
}
}
function clearImage(){
var yes=confirm('Clear drawing?');
if(yes){
context.clearRect(0, 0, canvas.width, canvas.height);
context.fillStyle = "rgb(255,255,255)";
context.fillRect(0, 0, canvas.width, canvas.height);
}
}
</script>
</html>
Related
Hi I have Date picker on select Date Month & Year it will show all Date in that Moth it working Fine
Now I want to add a Slider On that so that i used Owl Curasol after adding Curasol Date picker Stopped Working.
My Full code
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.1/jquery.js"></script>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.2/jquery-ui.min.js"></script>
<link rel="stylesheet" type="text/css" media="screen" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.2/themes/base/jquery-ui.css">
<link rel="stylesheet" type="text/css" href="http://www.jqueryscript.net/demo/Powerful-Customizable-jQuery-Carousel-Slider-OWL-Carousel/owl-carousel/owl.carousel.css">
<script type="text/javascript">
var weekday = new Array(7);
weekday[0] = "Sunday";
weekday[1] = "Monday";
weekday[2] = "Tuesday";
weekday[3] = "Wednesday";
weekday[4] = "Thursday";
weekday[5] = "Friday";
weekday[6] = "Saturday";
$(function() {
$('.date-picker').datepicker( {
changeMonth: true,
changeYear: true,
showButtonPanel: true,
dateFormat: 'MM yy',
minDate: 0,
onClose: function(dateText, inst) {
$d = new Date(inst.selectedYear, parseInt(inst.selectedMonth)+1, 0).getDate();
$(this).datepicker('setDate', new Date(inst.selectedYear, inst.selectedMonth, 1));
html='';
for(i=1;i<=$d;i++){
console.log(inst.selectedYear+'-'+(parseInt(inst.selectedMonth)+1)+'-'+i);
d = new Date(inst.selectedYear+'-'+(parseInt(inst.selectedMonth)+1)+'-'+i);
console.log(d);
n = weekday[d.getDay()];
html += '<div class="datediv">div-'+i+'<br>'+n+'</div>';
}
$('#datecontent').html(html);
}
});
$(document).ready(function() {
$(document).live('click', '.datediv', function() { alert("hello"); });});
});
</script>
Html Code
<label for="startDate">Date :</label>
<input name="startDate" id="startDate" class="date-picker" />
<div id="datecontent" id="owl-demo">
</div>
Owl Script
<script src="http://www.jqueryscript.net/demo/Powerful-Customizable-jQuery-Carousel-Slider-OWL-Carousel/assets/js/jquery-1.9.1.min.js"></script>
<script src="http://www.jqueryscript.net/demo/Powerful-Customizable-jQuery-Carousel-Slider-OWL-Carousel/owl-carousel/owl.carousel.js"></script>
<script type="text/javascript">
$(document).ready(function() {
$("#owl-demo").owlCarousel({
items : 10, //10 items above 1000px browser width
itemsDesktop : [1000,5], //5 items between 1000px and 901px
itemsDesktopSmall : [900,3], // betweem 900px and 601px
itemsTablet: [600,2], //2 items between 600 and 0;
itemsMobile : false // itemsMobile disabled - inherit from itemsTablet option
});
});
</script>
I got This error TypeError: $(...).datepicker is not a function
How to fix this issue. I think because of Jquery Conflict Only
How to over come on this??
Hope this helps!
You should use the add method in carousel to append items inside carousel.Also use refresh to run the slider after appending.
owl.trigger('add.owl.carousel', ['<div class="datediv">div-'+i+'<br>'+n+'</div>']).trigger('refresh.owl.carousel');
use remove method to remove items from carousel before appending new items.
for (var i =0; i< $('.owl-item').length; i++) {
owl.trigger('remove.owl.carousel', [i]).trigger('refresh.owl.carousel');
}
$(document).ready(function() {
var weekday = new Array(7);
weekday[0] = "Sunday";
weekday[1] = "Monday";
weekday[2] = "Tuesday";
weekday[3] = "Wednesday";
weekday[4] = "Thursday";
weekday[5] = "Friday";
weekday[6] = "Saturday";
$('.date-picker').datepicker( {
changeMonth: true,
changeYear: true,
showButtonPanel: true,
dateFormat: 'MM yy',
minDate: 0,
onClose: function(dateText, inst) {
$d = new Date(inst.selectedYear, parseInt(inst.selectedMonth)+1, 0).getDate();
$(this).datepicker('setDate', new Date(inst.selectedYear, inst.selectedMonth, 1));
for (var i =0; i< $('.owl-item').length; i++) {
owl.trigger('remove.owl.carousel', [i]).trigger('refresh.owl.carousel');
}
for(i=1;i<=$d;i++){
console.log(inst.selectedYear+'-'+(parseInt(inst.selectedMonth)+1)+'-'+i);
d = new Date(inst.selectedYear+'-'+(parseInt(inst.selectedMonth)+1)+'-'+i);
console.log(d);
n = weekday[d.getDay()];
owl
.trigger('add.owl.carousel', ['<div class="datediv">div-'+i+'<br>'+n+'</div>'])
.trigger('refresh.owl.carousel');
}
}
});
$(document).on('click', '.datediv', function() { alert("hello"); });
var owl = $(".owl-demo");
owl.owlCarousel({
margin: 20,
items : 10, //10 items above 1000px browser width
itemsDesktop : [1000,5], //5 items between 1000px and 901px
itemsDesktopSmall : [900,3], // betweem 900px and 601px
itemsTablet: [600,2], //2 items between 600 and 0;
itemsMobile : false // itemsMobile disabled - inherit from itemsTablet option
});
});
.owl-item {
-webkit-tap-highlight-color: transparent;
position: relative;
min-height: 1px;
float: left;
-webkit-backface-visibility: hidden;
-webkit-touch-callout: none;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jqueryui/1.12.1/jquery-ui.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/OwlCarousel2/2.0.0-beta.3/owl.carousel.min.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/OwlCarousel2/2.0.0-beta.3/assets/owl.theme.default.min.css" rel="stylesheet"/>
<link href="https://owlcarousel2.github.io/OwlCarousel2/assets/owlcarousel/assets/owl.carousel.min.css" rel="stylesheet"/>
<link href="https://cdnjs.cloudflare.com/ajax/libs/OwlCarousel2/2.0.0-beta.3/assets/owl.theme.default.min.css" rel="stylesheet"/>
<label for="startDate">Date :</label>
<input name="startDate" id="startDate" class="date-picker" />
<div id="datecontent" class="owl-demo">
</div>
so i have added 2 ion-scroll on my page.
example code is here: http://codepen.io/anon/pen/QNNExR
the first ion-scroll works properly, i can scroll left-right.
for the second ion-scroll, where there are lots of 'test' paragraphs.I cant scroll vertically (top - bottom). It always bounces back once i scorll a bit further than the screen height.
note: i didnt set height to the ion-scroll or the content inside the ion-scroll as the height is not fixed (eg: ion-scroll height depends on screen size, should fill the rest of screen height and content height depends on content length)
what did i do wrong? thanks.
<html ng-app="ionicApp">
<head>
<meta charset="utf-8">
<meta name="viewport" content="initial-scale=1, maximum-scale=1, user-scalable=no, width=device-width">
<title>Ionic vertical and horizontal Scroll</title>
<link href="//code.ionicframework.com/nightly/css/ionic.css" rel="stylesheet">
<script src="//code.ionicframework.com/nightly/js/ionic.bundle.js"></script>
</head>
<body ng-controller="MyCtrl">
<ion-header-bar class="bar-positive">
<h1 class="title">Ionic vertical and horizontal Scroll</h1>
</ion-header-bar>
<ion-pane>
<ion-content>
<div>
<ion-scroll zooming="false" direction="x" scrollbar-x="false" scrollbar-y="false" has-bouncing="true" style="width: 100%;">
123
</ion-scroll>
</div>
<div>
<ion-scroll zooming="false" direction="y" style="width: 100%; height: 100%">
<p>test</p>
<p>test</p>
<p>test</p>
<p>test</p>
<p>test</p>
<p>test</p>
<p>test</p>
<p>test</p>
<p>test</p>
<p>test</p>
<p>test</p>
<p>test</p>
<p>test</p>
<p>test</p>
<p>test</p>
<p>test</p>
<p>test</p>
<p>test</p>
<p>test</p>
</ion-scroll>
</div>
</ion-content>
</ion-pane>
</body>
</html>
added this in your controller with $ionicScrollDelegate, $timeout injector:
$timeout(function(){
//return false; // <--- comment this to "fix" the problem
var sv = $ionicScrollDelegate.$getByHandle('horizontal').getScrollView();
var container = sv.__container;
var originaltouchStart = sv.touchStart;
var originalmouseDown = sv.mouseDown;
var originaltouchMove = sv.touchMove;
var originalmouseMove = sv.mouseMove;
container.removeEventListener('touchstart', sv.touchStart);
container.removeEventListener('mousedown', sv.mouseDown);
document.removeEventListener('touchmove', sv.touchMove);
document.removeEventListener('mousemove', sv.mousemove);
sv.touchStart = function(e) {
e.preventDefault = function(){}
originaltouchStart.apply(sv, [e]);
}
sv.touchMove = function(e) {
e.preventDefault = function(){}
originaltouchMove.apply(sv, [e]);
}
sv.mouseDown = function(e) {
e.preventDefault = function(){}
originalmouseDown.apply(sv, [e]);
}
sv.mouseMove = function(e) {
e.preventDefault = function(){}
originalmouseMove.apply(sv, [e]);
}
container.addEventListener("touchstart", sv.touchStart, false);
container.addEventListener("mousedown", sv.mouseDown, false);
document.addEventListener("touchmove", sv.touchMove, false);
document.addEventListener("mousemove", sv.mouseMove, false);
});
$timeout(function(){
//return false; // <--- comment this to "fix" the problem
var sv = $ionicScrollDelegate.$getByHandle('horizontal2').getScrollView();
var container = sv.__container;
var originaltouchStart = sv.touchStart;
var originalmouseDown = sv.mouseDown;
var originaltouchMove = sv.touchMove;
var originalmouseMove = sv.mouseMove;
container.removeEventListener('touchstart', sv.touchStart);
container.removeEventListener('mousedown', sv.mouseDown);
document.removeEventListener('touchmove', sv.touchMove);
document.removeEventListener('mousemove', sv.mousemove);
sv.touchStart = function(e) {
e.preventDefault = function(){}
originaltouchStart.apply(sv, [e]);
}
sv.touchMove = function(e) {
e.preventDefault = function(){}
originaltouchMove.apply(sv, [e]);
}
sv.mouseDown = function(e) {
e.preventDefault = function(){}
originalmouseDown.apply(sv, [e]);
}
sv.mouseMove = function(e) {
e.preventDefault = function(){}
originalmouseMove.apply(sv, [e]);
}
container.addEventListener("touchstart", sv.touchStart, false);
container.addEventListener("mousedown", sv.mouseDown, false);
document.addEventListener("touchmove", sv.touchMove, false);
document.addEventListener("mousemove", sv.mouseMove, false);
});
I built a heatmap on Leaflet.
My first goal is to see the heatmap when you open the map. The second goal is not to view the heatmap if the zoom level is greater than 9.
I tried this :
if (map.getZoom() >9 {
map.removeLayer (heatmapLayer);
};
But it did not work.
Would you have any suggestions ?
Thanks !
Here is the code :
<!DOCTYPE html>
<html lang="en">
<head>
<title>Application - version 1.0</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="description" content="">
<meta name="author" content="">
<link rel="stylesheet" href="http://cdn.leafletjs.com/leaflet-0.6.3/leaflet.css" />
<link rel="stylesheet" href="style_p.css" />
<style type="text/css">
html, body, #map {
margin: 0;
margin-top: 0%;
width: 100%;
height: 100%;
};
</style>
</head>
<!-- Favicon -->
<link rel="icon" href="california.ico" />
<body>
<div id="map"></div>
<script src="http://cdn.leafletjs.com/leaflet-0.6.3/leaflet-src.js"></script>
<script src="http://maps.google.com/maps/api/js?v=3.2&sensor=false"></script>
<script src="jquery.js"></script>
<script type="text/javascript" src="heatmap.js"></script>
<script type="text/javascript" src="heatmap-leaflet.js"></script>
<script type="text/javascript" src="sloopjohnb.js"></script>
<script src="google.js"></script>
<script src="leaflet_search.js"></script>
<script type="text/javascript" charset="utf-8">
$(function() {
var osm = new L.TileLayer('http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png');
var base = new L.TileLayer('http://129.206.74.245:8001/tms_r.ashx?x={x}&y={y}&z={z}');
var ggl2 = new L.Google('SATELLITE');
var heatmapLayer;
heatmapLayer = L.TileLayer.heatMap({
radius: 10,
opacity: 0.8,
gradient: {
0.45: "rgb(0,0,255)",
0.55: "rgb(0,255,255)",
0.65: "rgb(0,255,0)",
0.95: "yellow",
1.0: "rgb(255,0,0)"
}
});
var Data1={
max: 1,
data: sloopjohnb
};
heatmapLayer.addData(Data1.data);
var baseMaps = {
"Fond OSM": osm,
"Fond de carte de base": base,
"Photo. aérienne Google" : ggl2
};
var overlayMaps = {
'Heatmap': heatmapLayer
};
map = new L.Map('map', {
minZoom : 1,
maxZoom : 11,
boxZoom : true,
layers: [base, heatmapLayer]
});
var controls = L.control.layers(baseMaps, overlayMaps, {position: 'bottomright'});
controls.addTo(map);
map.addControl(L.control.search());
L.control.scale().addTo(map);
map.attributionControl.addAttribution('Heatmap.js');
map.setView(new L.LatLng(39.291,-5.9765),2);
// Disparition de la heatmap en fct du zoom
map.on('zoomend', function () {
if (map.getZoom() > 9) {
map.removeLayer(heatmapLayer);
}
});
});
</script>
</body>
</html>
Are you sure you are creating the listener correctly?
For example, this seems like it should be called when the user zooms. So something like:
Edited
map.on('zoomend', function () {
if (map.getZoom() > 9 && map.hasLayer(heatmapLayer)) {
map.removeLayer(heatmapLayer);
}
if (map.getZoom() < 9 && map.hasLayer(heatmapLayer) == false)
{
map.addLayer(heatmapLayer);
}
});
If you ONLY want the layer added/removed based on zoom, don't add it to your layer control here:
var controls = L.control.layers(baseMaps, overlayMaps, {position: 'bottomright'});
controls.addTo(map);
You will just have to make sure you are doing your adding/removing when it is necessary. Try messing with this set up a little and see where you get. Also, the Documentation is well written regarding the use of L.tileLayer
You can use the leaflet-zoom-show-hide library to do it. This will automatically show/hide your layers as you zoom.
zsh = new ZoomShowHide(map);
var marker1 = L.marker([50.096, 14.425]);
// minzoom, maxzoom
zsh.addLayer(marker1, 10, 13);
var marker2 = L.marker([50.076, 14.425]);
zsh.addLayer(marker2, 8, null);
In the application below, the drop method is never called. The drop target (div2) is indicated by cancelling event in dragEnter and dragOver events but drop is not triggered. HTML and .dart are as follows:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Dandd</title>
<link rel="stylesheet" href="dandd.css">
</head>
<body>
<h1>Drag and drop</h1>
<p>Hello world from Dart!</p>
<div>
<label id='lbl' draggable='true' style='border: 1px solid; '>div1</label>
</div>
<p></p>
<div id='div2'>
<label>div2</label>
</div>
<script type="application/dart" src='dandd.dart > </script>
<script type='text/javascript'
src="https://dart.googlecode.com/svn/branches/bleeding_edge/dart/client/dart.js"></script>
</body>
</html>
and here is dart file
import 'dart:html';
void main() {
query('#lbl')
..on.dragStart.add(onDragStart)
..on.dragEnd.add(onDragEnd);
query('#div2')
..on.dragEnter.add(onDragEnter)
..on.dragOver.add(onDragOver)
..on.drop.add(onDrop);
query('#div2')
..on.dragLeave.add(onDragLeave);
}
onDragStart(MouseEvent e) {
print('started');
var lbl = e.target as LabelElement;
lbl.style.opacity = '0.4';
e.dataTransfer.setData('text', lbl.id);
}
onDragEnd(MouseEvent e) {
var lbl = e.target as LabelElement;
lbl.style.opacity = '1.0';
print('drag end called');
}
onDragEnter(MouseEvent e) {
e.stopPropagation();
e.dataTransfer.dropEffect = 'move';
var x = e.target as DivElement;
x.classes.add('blueborder');
}
onDragOver(MouseEvent e) {
e.stopPropagation();
e.dataTransfer.dropEffect = 'move';
var x = e.target as DivElement;
x.classes.add('blueborder');
}
onDragLeave(MouseEvent e) {
var x = e.target as DivElement;
x.classes.remove('blueborder');
}
onDrop(MouseEvent e){
print('on drop called');
var x = e.target as DivElement;
x.classes.remove('blueborder');
String sid = e.dataTransfer.getData('text');
var v = query('#{sid}');
x.children.add(v);
}
It looks like a bug. See issue 6646.
In my iPhone phonegap application I want to capture image using camera of device.I have done with the following code but it not works.Am not able to capture image.
In the following code in HTML section i have one button and when it clicked then i will call method defined of java script.
<script type="text/javascript" charset="utf-8" src="phonegap.0.9.4.js"></script>
<script type="text/javascript" charset="utf-8">
var pictureSource; // picture source
var destinationType; // sets the format of returned value
// Wait for PhoneGap to connect with the device
function onLoad() {
document.addEventListener("deviceready",onDeviceReady,false);
}
// PhoneGap is ready to be used!
function onDeviceReady() {
pictureSource=navigator.camera.PictureSourceType;
destinationType=navigator.camera.DestinationType;
}
// Called when a photo is successfully retrieved (taken with camera)
function onPhotoDataSuccess(imageData) {
alert("Your photo was taken successfully.");
}
// Called when a photo is successfully retrieved (out of the device's library)
function onPhotoURISuccess(imageURI) {
// Get image handle
var largeImage = document.getElementById('largeImage');
// Unhide image elements
largeImage.style.display = 'block';
// Show the captured photo
// The inline CSS rules are used to resize the image
largeImage.src = imageURI;
var options = new FileUploadOptions();
options.fileKey="file";
//options.fileName="newfile.txt";
options.mimeType="image/jpeg";
var params = new Object();
params.value1 = "test";
params.value2 = "param";
options.params = params;
var ft = new FileTransfer();
ft.upload(imageURI, "http://www.yourdomain.com/upload.php", win, fail, options);
// Make sure you use your own site!
}
// Success reporting
function win(r) {
alert("Code = " + r.responseCode);
alert("Response = " + r.response);
}
// Error reporting
function fail(message) {
alert('Failed because: ' + message);
}
function capturePhoto() {
// Take picture using device camera and retrieve image as base64-encoded string
navigator.camera.getPicture(onPhotoDataSuccess, fail, { quality: 30 });
}
function getPhoto(source) {
// Retrieve image file location from specified source
navigator.camera.getPicture(onPhotoURISuccess, fail, {
quality: 30,
destinationType: destinationType.FILE_URI,
sourceType: source
});
}
</script>
</head>
<body onload="onLoad()">
<button onclick="capturePhoto();">Take a Photo</button>
<button onclick="getPhoto(pictureSource.PHOTOLIBRARY);">Upload a Photo</button>
<img style="display:none;width:60px;height:60px;" id="smallImage" src="" />
<img style="display:none;" id="largeImage" src="" />
</body>
will you please try with the following snippet.
It capture the image from camera and also load in img tag. I tested on device.
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<!-- Change this if you want to allow scaling -->
<meta name="viewport" content="width=default-width; user-scalable=no" />
<meta http-equiv="Content-type" content="text/html; charset=utf-8">
<title>PGCamera</title>
<script type="text/javascript" charset="utf-8" src="phonegap.js"></script>
<script type="text/javascript" charset="utf-8">
function onBodyLoad()
{
document.addEventListener("deviceready",onDeviceReady,false);
}
/* When this function is called, PhoneGap has been initialized and is ready to roll */
function onDeviceReady()
{
// do your thing!
}
function PictureSourceType() {};
PictureSourceType.PHOTO_LIBRARY = 0;
PictureSourceType.CAMERA = 1;
function getPicture(sourceType){
var options = { quality: 10 };
if (sourceType != undefined) {
options["sourceType"] = sourceType;
}
// if no sourceType specified, the default is CAMERA
navigator.camera.getPicture(getPicture_Success, null, options);
};
function getPicture_Success(imageData){
alert("getpic success");
document.getElementById("test_img").src = "data:image/jpeg;base64," + imageData;
}
</script>
</head>
<body onload="onBodyLoad()">
<img style="width:60px;height:60px" id="test_img" src="" />
<!-- for testing, add the buttons below -->
<button onclick="getPicture()">From Camera</button>
<button onclick="getPicture(PictureSourceType.PHOTO_LIBRARY)">From Photo Library</button>
</body>
</html>
thanks,
Mayur