CODEWITHSUNDEEP
javascriptcordova
Matt
Matt

Reputation: 1923

Code gets only executed once - Phonegap & Javascript

I'm writing an app that keeps track of your position while running. The issue is that I can only start/stop the tracking only once. I have to kill the app to restore functionality.

$("#startRunning").live('click', function () 
{
    watch_id = navigator.geolocation.watchPosition( function (position) 
    {
        tracking_data.push(position);
        element.innerHTML = 'Aantal metingen: ' + aantalMeetingen;    
    },
    function (error) 
    {    
        console.log(error);  
    },
    {   
        enableHighAccuracy: true, maximumAge: 5000, timeout: 7000, 
    });

    track_id = loopNummer;
});

$("#stopRunning").live('click', function () 
{
    window.localStorage.setItem(track_id, JSON.stringify(tracking_data));
    alert(watch_id);

    //Reset the values and clearWatch
    navigator.geolocation.clearWatch(watch_id);
    aantalMeetingen = 0;
    watch_id = null;
    tracking_data = null;
    showResult();
});

I have no I idea how to fix this issue, because my code (should) be working normally.

Upvotes: 0

Views: 133

Answers (1)

Lodewijk Bogaards
Lodewijk Bogaards

Reputation: 19987

Just a guess, but instead of 

tracking_data = null;

try 

tracking_data = [];

otherwise tracking_data.push(position); is bound to cause a null pointer error.

Let me know :)

Upvotes: 2

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