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what is the difference between native app and phonegap?

+1 vote
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Hi all,I want to create an android app.But i wonder what is phonegap?Also, i need to know which one is best for creating app.

posted Sep 26, 2014 by anonymous

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1 Answer

0 votes

Native App

A native app, written for a specific hardware platform, will always run faster than a Web app, because there is no translation processing taking place.

Phonegap

Phonegap is nothing but Hybrid Apps .
Hybrid apps, like native apps, run on the device, and are written with web technologies (HTML5, CSS and JavaScript). Hybrid apps run inside a native container, and leverage the device's browser engine (but not the browser) to render the HTML and process the JavaScript locally.

Comparing to phonegap native app is the best for developing app.

answer Oct 1, 2014 by Madhavi Latha
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0 votes

I am searching for the smallest and largest in term of size of android app ever built and launched in google play store?

+2 votes

I am using D3 Graphs in my Android Hybrid app. When this app runs in browser the it shows perfect result but when i am setup for android mobile and testing on Emulator then it is not showing graphe and in LogCat it shows this error but this error not arise when this app runs in chrome, firefox

file:///android_asset/www/sm_libraries/sm_custome/graphClass.js: Line 21 : ReferenceError: Can't find variable: Gauge

Following is code sample

HTML

<!doctype html>
<html>
<head>
    <meta charset="utf-8">
    <title>SHA</title>
    <link rel="stylesheet" href="sm_styles/sm_jquery/jquery.mobile.css"/>
    <script src="sm_libraries/sm_jquery/jquery.js"></script>
    <script src="sm_libraries/sm_jquery/jquery.mobile.js"></script>
    <script src="sm_libraries/sm_angular/angular.js"></script>
    <script src="sm_libraries/sm_angular/jquery-mobile-angular-adapter.js"></script>
    <script src="sm_libraries/sm_angular/sm_controllers/sm_report_controller.js"></script>
    <link href="sm_styles/sm_custome/style.css" rel="stylesheet" type="text/css" />
    <script src="includes/footer.js"></script>
</head>
<body  ng-app="myApp">
    <div data-role="page" id="cb_firstReport" ng-controller="reportModule">
    <div data-role="header" data-position="fixed">
        <a style="display:none"  href="#main" data-role="button" data-iconpos="notext" data-icon="home">Home</a>
        <h3>Calories Burn Report</h3>
        <a data-role="button" data-rel="back" data-iconpos="notext" data-icon="back">Back</a>
    </div>
    <div data-role="content">
        <div class="row-fluid">
            <span style="float:left"><a ng-click="cb_first_Prev()" data-role="button" data-iconpos="notext" data-icon="back">Pervious</a></span>
            <span style="float:right"><a ng-click="cb_first_Next()" data-role="button" data-iconpos="notext" data-icon="forward">Next</a></span>
        </div>
        <span class="datesetter" id="cb_first_ViewDate"></span>
        <div id="firstReport" style="margin-top:20%; margin-left:40%">
            <span id="cb_graphGaugeContainer"></span>
        </div>
        <div>
            <span class="datesetter"><strong>Today, You Burn:: </strong>{{ 1425 }}<strong> Calories</strong></span>
        </div>
    </div>
  </div>

  <script type="text/javascript"  charset="utf-8" src="includes/D3Lib/d3.js"></script>

<script type="text/javascript" charset="utf-8"  src="includes/D3Lib/gauge.js"></script>

<script type="text/javascript" src="sm_libraries/sm_custome/graphClass.js"></script>
</body>
</html>

The Js Class in which it shows error is

// JavaScript Document

var GraphClass =
{
    gauges:[],
    cal:0,
    createGauge:function(name, label, min, max)
    {
        var config = 
        {
           size: 120,label: label,min: undefined != min ? min : 0,max: undefined != max ? max : 100,minorTicks: 5
        }

       var range = config.max - config.min;
       config.yellowZones = [{ from: config.min + range*0.75, to: config.min + range*0.9 }];
       config.redZones = [{ from: config.min + range*0.9, to: config.max }];
       GraphClass.gauges[name] = new Gauge(name + "GaugeContainer", config); // **In this line it shows error in eclipse emulator but correct in browsers**
       GraphClass.gauges[name].render();
   },
createGauges:function()
{
    GraphClass.createGauge("cb_graph", "Calories Burn",0,2600);
    GraphClass.createGauge("cn_graph", "Calories Gain",0,localStorage.getItem("DailyRequiredCalories"));
},
updateGauges:function()
{
    for (var key in GraphClass.gauges)
    {
        var value = GraphClass.getRandomValue(GraphClass.gauges[key]);
        GraphClass.gauges[key].redraw(value);
    }
},
getRandomValue:function(gauge)
{
    var overflow = 0; //10;
    console.log(gauge.config.min+" - "+overflow+" + ( "+gauge.config.max+" - "+gauge.config.min+" + "+overflow*2+")*"+Math.random());
    //return gauge.config.min - overflow + (gauge.config.max - gauge.config.min + overflow*2) *  Math.random();
    return GraphClass.cal;
},
initialize:function(cal)
{
    $('#cb_graphGaugeContainer').empty();
    $('#cn_graphGaugeContainer').empty();
    //alert(cal);
    GraphClass.cal = cal;
    GraphClass.createGauges();
    GraphClass.updateGauges();
    }
}
+2 votes

I am trying to develop phonegap in eclipse, but i want to know how to configure phonegap in Eclipse.

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