cordova 3.0: Android: Connection is not defined

Question

my first time experimenting with Apache Cordova 3.0.

downloaded lib, unziped cordova-android and cordova-js and created a project:

./create ~/Docume         


        

Answer 1

Much in the same time at the end was that no load the js plugins that referenced.          cordova_plugins.js

it may happen that your project is not in the correct folder ... but in any case you can copy directly to a folder known for.

         assets / www / plugins / org.apache.cordova.network-information

      network.js "

      Connection.js "

and loads in your html

Answer 2

Uncaught Refference error: Connection is not defined

is related to lack of a "Connection" object, which based on my experience with corodva 3.1.0 does not become available, even after a delay as benka suggested. This particular issue can be solved by using the constants of the navigator.connection object as below:

var states = {};
states[navigator.connection.UNKNOWN]  = 'Unknown connection';
states[navigator.connection.ETHERNET] = 'Ethernet connection';
states[navigator.connection.WIFI]     = 'WiFi connection';
states[navigator.connection.CELL_2G]  = 'Cell 2G connection';
states[navigator.connection.CELL_3G]  = 'Cell 3G connection';
states[navigator.connection.CELL_4G]  = 'Cell 4G connection';
states[navigator.connection.CELL]     = 'Cell generic connection';
states[navigator.connection.NONE]     = 'No network connection';

unfortunately in my case this was only the beginning of issues with network status on android as

navigator.connection.type

would always return 0 which is Unknown connection. Both on the android emulator and a device. A workaround which works for me is to call the plugin class directly:

document.addEventListener("deviceready", onDeviceReady, false);
function onDeviceReady() {
    var conn = checkConnection();
    alert("Connection:"+conn);


}
function checkConnection(){
        var networkState;
        var test = cordova.exec(
                function(winParam) {networkState = winParam;},
                function(error) {alert("Network Manager error: "+error);},
                "NetworkStatus",
                "getConnectionInfo",
                []
        );
        return networkState;
}

this code has an ugly networkState assignment inside a function that could potentially be executed asynchronously after the checkConnection return statement, but as the native code returns PluginResult inside the execute function - this works. The networkState value returned does not match the navigator.connection. constants like:

navigator.connection.WIFI

You can see the values returned in the plugins source code here: https://github.com/apache/cordova-plugin-network-information/blob/master/src/android/NetworkManager.java

Answer 3

I had the same problem with Cordova 3.5.0: navigator.connection.type returned 0 all the time and navigator.onLine was true. It was frustrating.

Then I found that the problem is only on my phone (with Android 2.3) and it works on emulator.

I guess that the problem can relate with Android version too.

Answer 4

If you have included the plugin and are having the same problem it could be the order in which you included the plugin.

In order for the plugin to work I had to include the plugin after having added the platform.

$ cordova create

$ cordova platform add android 

$ cordova plugin add org.apache.cordova.network-information

Answer 5

Now days in cordova 3.5 it seems

<access origin="*" />

is the correct CORS config.xml entry.

Note clarification on it being "ORIGIN" not "uri" and "subdomains" as it was before I believe.

Answer 6

I got the same issue with Phonegap 3.0 on Android 4.2.2 Api 17.

Tried removing and reinstalling the Connection plugin trying both commands: Cordova or Phonegap local but didn't work.

What I have noticed in the logs is the following right after the ERROR message:

10-11 14:31:40.360: E/Web Console(): Uncaught ReferenceError: Connection is not defined
10-11 14:31:40.380: D/CordovaNetworkManager(): Connection Type: wifi

So I was thinking that it actually looks like it was an async callback after successfully initializing Connection.type from CordovaNetworkManager() however it shouldn't be.

So I tried the following:

var networkState = navigator.connection.type;

setTimeout(function(){
    networkState = navigator.connection.type;
    alert('networkState = '+networkState);

    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.CELL]     = 'Cell generic connection';
    states[Connection.NONE]     = 'No network connection';

    alert('Connection type: ' + states[networkState]);
 }, 500);

I know it looks a bit stupid but works every time. What it does is first calls navigator.connection.type and then runs the whole function 500ms later giving time to CordovaNetworkManager to initialize the connection.type.