Hi got following code from sitepoint:
<!DOCTYPE HTML>
<html>
<head>
<style>
body, input {font-size:14pt}
input, label {vertical-align:middle}
.qrcode-text {padding-right:1.7em; margin-right:0}
.qrcode-text-btn {display:inline-block; background:url(//dab1nmslvvntp.cloudfront.net/wp-content/uploads/2017/07/1499401426qr_icon.svg) 50% 50% no-repeat; height:1em; width:1.7em; margin-left:-1.7em; cursor:pointer}
.qrcode-text-btn > input[type=file] {position:absolute; overflow:hidden; width:1px; height:1px; opacity:0}
</style>
</head>
<body>
<input type=text size=16 placeholder="Tracking Code" class=qrcode-text>
<label class=qrcode-text-btn><input type=file accept="image/*" capture=environment onclick="return showQRIntro();" onchange="openQRCamera(this);" tabindex=-1></label>
<input type=button value="Go" disabled>
<script src="qr_packed.js"></script>
<script>
function openQRCamera(node) {
var reader = new FileReader();
reader.onload = function() {
node.value = "";
qrcode.callback = function(res) {
if(res instanceof Error) {
alert("No QR code found. Please make sure the QR code is within the camera's frame and try again.");
} else {
node.parentNode.previousElementSibling.value = res;
}
};
qrcode.decode(reader.result);
};
reader.readAsDataURL(node.files[0]);
}
function showQRIntro() {
return confirm("Use your camera to take a picture of a QR code.");
}
</script>
</body>
</html>
In this code on click of QR icon Mobile camera is opened. But I want to open camera on page lode in specified area of web page. My screen design is below:
My requirement is below:
By default mobile camera or webcam in PC/laptop should open and start scanning. After scanning the code should display in input box.
On click of QR icon file upload opens, after QR image upload, the code appears in input box
OR user can type/copy paste QR code received in the input box.
I've create one code after modifying webqr.com which is working fine on desktop/ laptop and android device but camera is not opening in ios device and macbook.
Hence I searched and found above code which is able to open camera in iphone and ipad. But have no idea how to achieve my above mentioned requirement.
Related
Currently I'm working on my cordova app for android and there I need a functionality of taking screenshot and share in social media. So I used some lines of code and it worked by taking screenshot and sharing in social media, but it do not capture the image/picture coming from the API and displayed in the screen or in other words, it excludes the images/pictures, which is fetched from the API and displayed in the screen and takes the screenshot of remaining contents present in the screen. Can anyone help me with a solution to take screenshot properly with both image and content present in the screen and share via social media. Thanks in advance..!
Here is my code
HTML
<div class="toolbar hideonshare" data-html2canvas-ignore="true" >
<a href="#" class="link ">
</a>
<a class="link" onclick="reportss();" >
<img src="img/share.png" alt="Smiley face" height="42" width="42">
</a></div>
<div class="screen"></div>
JQUERY
function reportss()
{
$(".hideonshare").hide();
let region = document.querySelector("body");
html2canvas(region, {
onrendered: function(canvas) {
let pngUrl = canvas.toDataURL();
let img = document.querySelector(".screen");
img.src = canvas.toDataURL("image/png");
window.plugins.socialsharing.share("Download our app", 'Android filename', img.src, null);
},
});
}
<script type="text/javascript" src="js/SocialSharing.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/html2canvas/0.4.1/html2canvas.min.js"></script>
The reason its not displaying is because you are treating a div element as a img element
change
<div class="screen"></div>
To
<img class="screen"></img>
Edited:
Try this code
function reportss() {
$(".hideonshare").hide();
var region = document.querySelector("body");
html2canvas(region, {
logging: true,
letterRendering: 1,
useCORS: true,
onrendered: function(canvas) {
var pngUrl = canvas.toDataURL();
var img = document.querySelector(".screen");
img.src = canvas.toDataURL("image/png");
window.plugins.socialsharing.share("Download our app", 'Android filename', img.src, null);
},
});}
I am new to python on android and I am trying to buid the small example of a web application found here ( http://pythoncentral.io/python-for-android-using-webviews-sl4a/ ) where a python script opens a web page and communicates with it (you enter a text in the web page and the python script process it and send it back to the web page for display). In my attempt to do this the python script can open the page but there is no dialog between the web page and the script. It seems that the line " var android = new Android() " in the web page doesn't work as in the example.
Here is the code for the webpage :
<!DOCTYPE HTML>
<html>
<head>
<script>
var droid = new Android();
function postInput(input) {
if (event.keyCode == 13)
droid.eventPost('line', input)
droid.registerCallback('stdout', function(e) {
document.getElementById('output').innerHTML = e.data;
});
}
</script>
</head>
<body>
<div id="banner">
<h1>SL4A Webviews</h1>
<h2>Example: Python Evaluator</h2>
</div>
<input id="userin" type="text" spellcheck="false"
autofocus="autofocus" onkeyup="postInput(this.value)"
/>
<div id="output"></div>
<button id="killer" type="button"
onclick="droid.eventPost('kill', '')"
>QUIT</button>
</body>
</html>
and the python code launching the web page above :
import sys, androidhelper
droid = androidhelper.Android()
def line_handler(line):
''' Evaluate user input and print the result into a webview.
This function takes a line of user input and calls eval on
it, posting the result to the webview as a stdout event.
'''
output = str(eval(line))
droid.eventPost('stdout', output)
droid.webViewShow('file:///storage/emulated/0/com.hipipal.qpyplus/scripts/webview1.html')
while True:
event = droid.eventWait().result
if event['name'] == 'kill':
sys.exit()
elif event['name'] == 'line':
line_handler(event['data'])
I really don't understand how the Android() instance in the web page was supposed to work. Thank you for any help !
(I am running qpython with SL4A library on android lollipop)
Finally yesterday I found that qpython comes with a nice framework called Bottle. And it is very easy to use for a beginner like me.
from bottle import route, run, request, template
#route('/hello')
def hello():
line = ""
output = ""
return template('/storage/emulated/0/com.hipipal.qpyplus/webviewbottle2.tpl', line=line, output=output)
#route('/submit', method='POST')
def submit():
line = request.forms.get('line')
output = str(eval(line))
return template('/storage/emulated/0/com.hipipal.qpyplus/webviewbottle2.tpl', line=line, output=output)
run(host='localhost', port=8080, debug=True)
# open a web browser with http://127.0.0.1:8080/hello to start
# enter 40 + 2 in the input and "submit" to get the answer in the output window.
and the template file :
<h1>bottle Webview</h1>
<h2>Example: Python Evaluator</h2>
<form action="/submit" method = "post">
<input name="line" type = "text" value = {{line}}><br>
<input name="output" type = "text" value = {{output}}>
<button name="submit" type = "submit">submit</button>
</form>
In an Android Webview I'm displaying a page with an HTML button that only works fine when it makes a GET request. This button loads a PDF document in the browser when it's working correctly.
I need this to be a POST request, however, because I was passing a lot of data in the query string, but when making a POST request nothing happens at all (on a smartphone) or the downloaded file is corrupted (on a tablet). The same button works perfectly fine when clicked on a Windows browser, whichever of GET or POST is used.
Here's the JS code and the HTML that makes the call:
function ExportPDF()
{
var name = document.getElementById('lblName').innerHTML;
var surname = document.getElementById('lblSurname').innerHTML;
var div = '<form id="myform" method="post" action="URL"><input type="hidden" name="Name" value="'+name+'"><input type="hidden" name="Surname" value="'+surname+'"></form>';
jQuery('#divExportPDF').append(div);
jQuery('#myform').submit();
}
<button class="btnExport" onclick="ExportPDF()">EXPORT TO PDF</button>
<div id="divExportPDF"></div>
i'm developing an app for iOS and Android with Phonegap 2.1.0 and jQuery Mobile 1.2.0. iOS version is already finished but we are experimenting some problems with the Android one...
One of the app sections is a list of videos and they are opened in a iframe inside a pop up, in iOS works well but if we try this in an Android device (Nexus 7 with Android 4.2) we only get the fist screenshot and when we press play only sound is played, without video. We've tryed to open the iframe url with childbrowser in a webview and the result is the same. Only if we open it in an external browser (openExternal) it seems to work.
I think maybe is Vimeo's player problem, but when we try to play the videos, we see this errors in the log:
01-08 22:45:12.084: E/libEGL(26580): call to OpenGL ES API with no current context (logged once per thread)
01-08 22:45:12.094: D/MediaPlayer(26580): Couldn't open file on client side, trying server side
I've been searching for hours without success, so i expect someone may know how to make it works... :/
For the iFrame, we are using the code Vimeo's giving us from the embed section of each video (i can´t post them here cause theyre private), and... Vimeo's option to make video compatible with mobile devices is marked as well.
Thanks!
HTML
<head>
<meta charset="utf-8">
<!--
| WARNING:
| For iOS 7, remove the width=device-width and height=device-height attributes.
| #see https://issues.apache.org/jira/browse/CB-4323
'-->
<meta name="viewport" content="width=device-width,height=device-height,target-densitydpi=device-dpi,user-scalable=no,initial-scale=1,minimum-scale=1,maximum-scale=1,minimal-ui">
</head>
<body>
<div class="close">
fechar
</div>
<script id="tmpl-player" type="text/template">
<iframe id="video" src="https://player.vimeo.com/video/[[video]]?autoplay=1&autopause=1&byline=0&badge=0&title=0&portrait=1&color=333&loop=0" width="100%" height="100%" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>
</script>
<script>
var bodyEl = document.querySelector('body');
var tmplPlayerEl = window.document.getElementById('tmpl-player');
var tmplPlayer = template(tmplPlayerEl.innerHTML, getURLParams());
function getURLParams() {
var query = location.search.substr(1);
var result = {};
query.split('&').forEach(function(part) {
var item = part.split('=');
result[item[0]] = decodeURIComponent(item[1]);
});
return result;
}
function template(raw, data, keep404) {
return raw.replace(/\[{2,}[(\s\uFEFF\xA0a-zA-Z0-9_\./]+\]{2,}/gi, function(match, value) {
value = match.replace(/^\[{2,}|\s+|\]{2,}$/g, '');
return typeof data[value] !== 'undefined' ? data[value] : (keep404 ? match : '');
});
}
var newNode = window.document.createElement('div');
newNode.innerHTML = tmplPlayer;
bodyEl.appendChild(newNode);
</script>
</body>
JAVASCRIPT:
var fsVideo = window.open('vimeo.html?video='+video, '_blank', 'location=no,zoom=no');
fsVideo.addEventListener('loaderror', onLoadError);
fsVideo.addEventListener('loadstop', onLoadStop);
fsVideo.addEventListener('exit', onExit);
function onLoadError(evt){
fsVideo.close();
}
function onLoadStop(evt){
evt.url.match('cordova:close') && fsVideo.close();
}
function onExit(evt){
fsVideo.removeEventListener('loaderror', onLoadError);
fsVideo.removeEventListener('loadstop', onLoadStop);
fsVideo.removeEventListener('exit', onExit);
fsVideo = null;
}
Don't forget https://github.com/apache/cordova-plugin-inappbrowser
I have one question about access to the camera from the browser.
(Android and iOS browser)
Google and Apple announced 1 year ago, that the access from the browser to the camera should be available soon.
I need this function for a mobile Web Application.
Is this feature available now?
try the following:
<html>
<body>
<form>
<input type="file" accept="image/*;capture=camera"/>
<input type="submit"/>
</form>
</body>
</html>
I did using the input, as they said here, and worked really good on iOs. I could get a picture from camera or photo album and set an img element.
Here is the code: http://jsfiddle.net/2wZgv/
The js:
<script>
oFReader = new FileReader();
oFReader.onload = function (oFREvent) {
document.getElementById("fotoImg").src = oFREvent.target.result;
document.getElementById("fotoImg").style.visibility = "visible";
var screenHeight = screen.availHeight;
screenHeight = screenHeight - 220;
document.getElementById("fotoImg").style.height = screenHeight;
};
$(function() {
$("input:file").change(function (){
var input = document.querySelector('input[type=file]');
var oFile = input.files[0];
oFReader.readAsDataURL(oFile);
});
});
</script>
picture photo album mobile jquery camera
This is the w3c draft
After reading it the input tag should be
<input type="file" accept="image/*" capture="camera" id="capture">
Try this stuff.
<video id="Video" autoplay="autoplay" audio="muted" width="100%" height ="100%"> </video>
<script type="text/javascript">
if (navigator.getUserMedia) {
var video = document.getElementById('Video');
video.src = null;
navigator.getUserMedia('video', successCallback, errorCallback);
//if everything if good then set the source of the video element to the mediastream
function successCallback(stream) {
video.src = stream;
}
//If everything isn't ok then say so
function errorCallback(error) {
alert("An error occurred: [CODE " + error.code + "]");
}
}
else {
//show no support for getUserMedia
alert("Native camera is not supported in this browser!");
}
</script>
But remember this will work only with Opera Mobile for Android. No other browser right now supporting with camera access. Up to my knowledge iOS won't support this feature now, may be in future.
Thank You.
This is possible. You can access camera through your browser application. If you are developing through Phone Gap then look for http://docs.phonegap.com/phonegap_camera_camera.md.html
This is the camera API in PhoneGap to access camera.