[TIMOB-12233] BlackBerry: Implement important Titanium.Accelerometer functionality

var win = Ti.UI.createWindow({
  layout: 'vertical'
});

var enableAccelerometer = Ti.UI.createButton({
  title: 'Toggle Accelerometer'
});
win.add(enableAccelerometer);

var labels = ['x', 'y', 'z'].map(function(coord) {
  var label = Ti.UI.createLabel({text: coord + ': N/A'});
  win.add(label);
  return label;
});

function onUpdate(e) {
  labels[0].text = e.x;
  labels[1].text = e.y;
  labels[2].text = e.z;
}

var accelerometerEnabled = false;
enableAccelerometer.addEventListener('click', function() {
  accelerometerEnabled ? Ti.Accelerometer.removeEventListener('update', onUpdate)
                       : Ti.Accelerometer.addEventListener('update', onUpdate);
  accelerometerEnabled = !accelerometerEnabled;
});

win.open();