Leaflet扩展：处理程序和控件

 L.TiltHandler = L.Handler.extend({
    addHooks: function() {
        L.DomEvent.on(window, 'deviceorientation', this._tilt, this);
    },

    removeHooks: function() {
        L.DomEvent.off(window, 'deviceorientation', this._tilt, this);
    },

    _tilt: function(ev) {
        // Treat Gamma angle as horizontal pan (1 degree = 1 pixel) and Beta angle as vertical pan
        this._map.panBy( L.point( ev.gamma, ev.beta ) );
    }
});
L.Map.addInitHook('addHandler', 'tilt', L.TiltHandler);
var map = L.map('mapDiv', { tilt: true });