我正在尝试使用此Sensor API中的磁力计,但不确定是否正确使用了
。我将示例代码从their site复制并编辑到了我的测试站点中;
let sensor = new Magnetometer();
sensor.start();
sensor.onreading = () => {
console.log("Magnetic field along the X-axis " + sensor.x);
console.log("Magnetic field along the Y-axis " + sensor.y);
console.log("Magnetic field along the Z-axis " + sensor.z);
document.getElementById("x").innerHTML = "X = " + sensor.x;
document.getElementById("y").innerHTML = "Y = " + sensor.y;
document.getElementById("z").innerHTML = "Z = " + sensor.z;
};
sensor.onerror = event => console.log(event.error.name, event.error.message);
但是,当我加载页面时,它没有任何读数。在笔记本电脑上检查该网站会返回此错误消息;
Uncaught ReferenceError: Magnetometer is not defined
at magnetometer.js:1
对此有任何见识将不胜感激。
答案 0 :(得分:0)
我找到了答案。环顾四周后,我发现您需要转到chrome://flags/#enable-generic-sensor-extra-classes
并启用Generic Sensor Extra Classes
。
我不确定为什么会这样,但是我现在正在得到我想要的读数。