怎么用 JavaScript 禁止 devicemotion 事件

removeEventListener

        
        var deviceMotionUtil=(function(){
            var SHAKE_THRESHOLD = 1000;
            var last_update = 0;
            var x = y = z = last_x = last_y = last_z = 0;

            
            function disable(){
                window.removeEventListener('devicemotion', deviceMotionHandler, false);
            }
            
            function enable(){
                if (window.DeviceMotionEvent) {
                    window.addEventListener('devicemotion', deviceMotionHandler, false);
                    return true;
                } else {
                    alert('本設備不支持devicemotion事件');
                    return false;
                }
            }
            function deviceMotionHandler(eventData) {
                var acceleration = eventData.accelerationIncludingGravity;
                var curTime = new Date().getTime();
            
                if ((curTime - last_update) > 100) {
                    var diffTime = curTime - last_update;
                    last_update = curTime;
                    x = acceleration.x;
                    y = acceleration.y;
                    z = acceleration.z;
                    var speed = Math.abs(x + y + z - last_x - last_y - last_z) / diffTime * 10000;
                    var status = document.getElementById("status");
            
                    if (speed > SHAKE_THRESHOLD) {
                        doResult();
                    }
                    last_x = x;
                    last_y = y;
                    last_z = z;
                }
            }
            return {
                disable:disable,
                enable:enable            
               
              }
        }());
        
        
        function doResult() {
            //這里是彈窗  當彈窗彈出來，就禁止繼續(xù)搖一搖，怎么寫？
            deviceMotionUtil.disable();
            congratulationTc();
            audio2.play();
            audio1.pause();
            $('.god_animation').removeClass('zindex');
     
        }