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PubNub Test - Appcelerator Titanium/Android

/ Published in: JavaScript

Implementing PubNub (http://www.pubnub.com) notifications for Titanium Android.

Also employs the Titanium Redux (https://github.com/dawsontoth/Appcelerator-Titanium-Redux) library.

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////////////////////////////////////
//app.js.
//Application entry point.
////////////////////////////////////

////////////////////////////////////
//Imports.
////////////////////////////////////
//Redux.js.
Titanium.include('jslibs/redux.js');
//PubNub library.
include('jslibs/pubnub.js');
////////////////////////////////////

////////////////////////////////////
//RJSS style sheet.
////////////////////////////////////
includeRJSSGlobal('rjss/common.rjss');
////////////////////////////////////

////////////////////////////////////
//Class includes.
////////////////////////////////////
var classincludes = [
Titanium.UI.createLabel,
Titanium.UI.createWindow,
Titanium.UI.createButton,
Titanium.UI.createImageView,
Titanium.UI.createAnimation,
Titanium.UI.createView,
Titanium.UI.createActivityIndicator,
Titanium.UI.createNotification,
Titanium.UI.createTextField
];

////////////////////////////////////
//Main.
////////////////////////////////////

///////////////////////////
//Global functions.
///////////////////////////
//Floating point number precision.
function handlefloat(num, precpoint) {
    return (parseFloat(num.toPrecision(precpoint)));
}
///////////////////////////

////////////////////////////////////
//Create root window.
//Global vars.
////////////////////////////////////
var rootwin = new Window({
    title:'PubNubTest',
    id: 'rootwin',
    exitOnClose: true,
    scrollable: true,
    modal:true,
    animated:true
});
rootwin.open();
rootwin.addEventListener('android:back', function() {
    rootwin.close();
});

///////////////////////////
//PubNub Object.
///////////////////////////
var PubNub = { //<-- Begin, PubNub Object.

///////////////////////////
    //Constructor.
    ///////////////////////////
    init: function() {
        this.datain();
        this.dataout();
        this.sendbutton();
        this.activityind('Loading');
        PubNub.pubnubvars.actind.show();
    },

///////////////////////////
    ///////////////////////////
    //Object variables.
    ///////////////////////////
    ///////////////////////////

///////////////////////////
    //Variable holder.
    ///////////////////////////
    pubnubvars: new Object({}),
    ///////////////////////////
    //PubNub Initialize.
    ///////////////////////////
    pubnub : PUBNUB.init({
        publish_key   : 'demo',
        subscribe_key : 'demo',
        ssl           : false,
        origin        : 'pubsub.pubnub.com'
    }),

///////////////////////////
    ///////////////////////////
    //Main Methods.
    ///////////////////////////
    ///////////////////////////

///////////////////////////
    //PubNub Subscribe/Listen.
    ///////////////////////////
    pubnubsubscribe : function() {
        PubNub.pubnub.subscribe({
            channel  : 'test_channel',
            callback : function(message) {
                PubNub.pubnubvars.actind.hide();
                //Output to label.
                PubNub.pubnubvars.datalabel.text = message.message;
                //Message Received.
                PubNub.notice('JSON String received: ' + JSON.stringify(message));
                info(JSON.stringify(message));
            },
            error : function() {
                //Connection lost.
                info("Connection Lost");
            }
        })
    },
    ///////////////////////////
    //PubNub Publish.
    ///////////////////////////
    pubnubpublish : function(msg) {
        PubNub.pubnub.publish({
            channel  : 'test_channel',
            message  : {
                message : msg
            },
            callback : function(inf) {
                if (inf[0]) {
                    info("Successfully Sent Message!");
                } else {
                    //Connection lost.
                    info("Failed! -> " + inf[1]);
                }
            }
        })
    },

///////////////////////////
    //PubNub History.
    ///////////////////////////
    pubnubhistory: function(txtfield) {
        PubNub.pubnub.history({
            channel : 'test_channel',
            limit : 5,
            callback : function(messages) {
                PubNub.pubnubvars.actind.hide();
                txtfield.text = 'Message History(\u5C65\u6B74):\n\n';
                for(var m = 0; m < messages.length; m++) {
                    txtfield.text += messages[m].message;
                }
            }
        });
    },
    ///////////////////////////

///////////////////////////
    //Publish to PubNub.
    //Send input.
    ///////////////////////////
    sendbutton: function() {
        var sendbutton = new Button({
            id: 'sendbutton'
        });
        rootwin.add(sendbutton);
        //Event handler.
        $(sendbutton).click(function() {
            PubNub.pubnubvars.actind.show();
            //Publish to PubNub.
            var msg = PubNub.pubnubvars.inputbox.value;
            PubNub.pubnubpublish(msg);
        });
    },
    ///////////////////////////
    //PubNub Subscribe/Listen.
    //Display output.
    ///////////////////////////
    dataout: function() {
        //Listen for PubNub responses.
        PubNub.pubnubsubscribe();
        //Output Label.
        var datalabel = new Label({
            id: 'datalabel'
        });
        //Output Box.
        var databox = new View({
            id: 'databox'
        });
        rootwin.add(databox);
        databox.add(datalabel);
        PubNub.pubnubvars.datalabel = datalabel;
        //Display message history.
        var historylabel = new Label({
            id: 'historylabel'
        });
        databox.add(historylabel);
        PubNub.pubnubhistory(historylabel);
    },
    ///////////////////////////
    //Input text message.
    ///////////////////////////
    datain: function() {
        var inputbox = new TextField({
            id: 'inputbox'
        });
        rootwin.add(inputbox);
        PubNub.pubnubvars.inputbox = inputbox;
    },
    ///////////////////////////
    //Create 'toast' notifications.
    ///////////////////////////
    notice: function(noticetxt) {
        var toast = Titanium.UI.createNotification({
            duration: Titanium.UI.NOTIFICATION_DURATION_SHORT
        });
        toast.show();
        toast.message = noticetxt;
    },
    ///////////////////////////
    //Create Activity indicator.
    ///////////////////////////
    activityind: function(msg) {
        var actind = new ActivityIndicator({
            className: 'activity_indicator',
            message: msg
        });
        rootwin.add(actind);
        PubNub.pubnubvars.actind = actind;
    }
///////////////////////////
} //<-- End, PubNub Object.
///////////////////////////
//Initialize application.
///////////////////////////
PubNub.init();
////////////////////////////////////

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