Tabs loading API

I selected the Ionic templates Tabs Application.

When I go into my camera app the button works fine on the initial tab that shows when the app starts.

If I put the button on the second or third tab, I can’t get the camera to work…

This is the code in the controller.js…

document.addEventListener(“deviceready”, onDeviceReady, false);

function id(element) {
return document.getElementById(element);
}

function onDeviceReady() {
cameraApp = new cameraApp();
cameraApp.run();
navigator.splashscreen.hide();
}

angular.module(‘starter.controllers’, [])

.controller(‘HomeCtrl’, function($scope) {
})

.controller(‘SoundsCtrl’, function($scope, Sounds) {
$scope.sounds = Sounds.all();
})

.controller(‘SoundsDetailCtrl’, function($scope, $stateParams, Sounds) {
$scope.sound = Sounds.get($stateParams.soundId);
})

.controller(‘CameraCtrl’, function($scope) {

  $scope.getPhoto = function() {
        Camera.getPicture().then(function(imageURI) {
          console.log(imageURI);
          $scope.lastPhoto = imageURI;
        }, function(err) {
          console.err(err);
        }, {
          quality: 75,
          targetWidth: 320,
          targetHeight: 320,
          saveToPhotoAlbum: false
        });
      };

});

function cameraApp(){}
cameraApp.prototype={
_pictureSource: null,
_destinationType: null,
run: function(){
var that=this;
that._pictureSource = navigator.camera.PictureSourceType;
that._destinationType = navigator.camera.DestinationType;
id(“capturePhotoButton”).addEventListener(“click”, function(){
that._capturePhoto.apply(that,arguments);
});
},
_capturePhoto: function() {
var that = this;

        //ADD PLAY SOUND HERE
        //that._onPhotoDataSuccess.apply(that,arguments);
        // Take picture using device camera and retrieve image as base64-encoded string.
        
        //navigator.camera.getPicture().then(function(imageURI) {},
        
        navigator.camera.getPicture(function(){
        },function(){
            that._onFail.apply(that,arguments);
        },{
            quality: 50,
            destinationType: that._destinationType.DATA_URL
        });
    },

}

Thank you,
Pete