var SHAKE_THRESHOLD = 800;//搖動強度 var lastUpdate = 0; var x, y, z, last_x, last_y, last_z; var canshake = false; function deviceMotionHandler(eventData) {var acceleration = eventData.accelerationIncludingGravity;var curTime = new Date().getTime();if ((curTime - lastUpdate) > 100) {var diffTime = (curTime - lastUpdate);lastUpdate = 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;if (canshake && speed > SHAKE_THRESHOLD) {canshake = false;//DO STHif (window.DeviceMotionEvent) { window.removeEventListener('devicemotion', deviceMotionHandler, false); }}last_x = x;last_y = y;last_z = z;} }

轉載于:https://www.cnblogs.com/allvie/p/3862571.html

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