Hello World App
This sample app is a Core Cordova Plugins Demo showing several device functionalities.
Tested Environment
- Android 11.0
- iOS 14.3index.htmlphonegap-demo.html

File | Description |
index.html | The Startup page |
phonegap-demo.html | The Core Cordova Plugins Demo page |
phonegap-demo/master.css | The style sheet for the Core Cordova Plugins Demo page |
phonegap-demo/main.js | The JavaScript file handling implementation in the Core Cordova Plugins Demo page |
css/style.css | The style Sheet for the whole application |
img/icon/*.png | All icon files needed to use this template |
jQuery
index.html
is the Startup page.<body>
<h1>HelloWorld!</h1>
<a class="button--large" href="phonegap-demo.html">Start Demo</a>
</body>
The above html code inside the
<body>
tag is showing a HelloWorld!
phrase and a Start Demo
button as shown below.phonegap-demo.html shows a Core Cordova Plugins Demo with the basic phone information and a list of functions as below:
- Get Location: Get current location of the phone.
- Call 411: Call
411
. - Vibrate: Vibrate the phone.
- Get a Picture: Turn on the phone's camera.
- Check Network: Check the current type of network the phone isusing.
The JavaScript code corresponds to these functions will be explained in the next section.
The
main.js
is a JavaScript file handling the implementation of the Core Cordova Plugins Demo page. There are 5
main functions in this file:Get current location of the phone. Below is the JavaScript code of this function:
...
var getLocation = function() {
var suc = function(p) {
alert(p.coords.latitude + " " + p.coords.longitude);
};
var locFail = function() {
};
navigator.geolocation.getCurrentPosition(suc, locFail);
};
...
When click on the button, a message showing the current location of phone will appear as below:
Call
411
. Below is the JavaScript code of this function:...
<a href="tel:411" class="btn large">Call 411</a>
...
In order to use the
href="tel:411"
, the following setting is needed in config.xml
file:<allow-intent href="tel:*" />
When click on the
Call 411
button, a confirmed message of the call is appeared.Vibrate the phone. Below is the JavaScript code of this function:
...
var vibrate = function() {
navigator.vibrate(500);
};
...
When click on the
Vibrate
button, you will notice that your phone vibrates.Turn on the phone's camera. Below is the JavaScript code of this function:
...
function dump_pic(data) {
var viewport = document.getElementById('viewport');
console.log(data);
viewport.style.display = "";
viewport.style.position = "absolute";
viewport.style.top = "10px";
viewport.style.left = "10px";
document.getElementById("test_img").src = data;
}
function fail(msg) {
alert(msg);
}
function show_pic() {
navigator.camera.getPicture(dump_pic, fail, {
quality : 50
});
}
...
When click on the
Get a Picture
button, the phone camera is turned on. If you take a picture and use it, it will be displayed in the page as shown below otherwise a message will be displayed (see below):Check the current type of network the phone is using. Below is the JavaScript code of this function:
...
function check_network() {
var networkState = navigator.network.connection.type;
var states = {};
states[Connection.UNKNOWN] = 'Unknown connection';
states[Connection.ETHERNET] = 'Ethernet connection';
states[Connection.WIFI] = 'WiFi connection';
states[Connection.CELL_2G] = 'Cell 2G connection';
states[Connection.CELL_3G] = 'Cell 3G connection';
states[Connection.CELL_4G] = 'Cell 4G connection';
states[Connection.NONE] = 'No network connection';
confirm('Connection type:\n ' + states[networkState]);
}
...
When click on the
Check Network
button, the current network type information will be displayed.Last modified 2mo ago