LinearAccelerationSensor

LinearAccelerationSensor interface of the Sensor APIs provides on each reading the acceleration applied to the device along all three axes, but without the contribution of gravity.

To use this sensor, the user must grant permission to the 'accelerometer' device sensor through the Permissions API.

If a feature policy blocks use of a feature it is because your code is inconsistent with the policies set on your server. This is not something that would ever be shown to a user. See Feature-Policy for implementation instructions.

构造函数

LinearAccelerationSensor.LinearAccelerationSensor()
创建新的 LinearAccelerationSensor 对象。

特性

LinearAccelerationSensor.x 只读
Returns a double containing the linear acceleration of the device along the device's x axis.
LinearAccelerationSensor.y 只读
Returns a double containing the linear acceleration of the device along the device's y axis.
LinearAccelerationSensor.z 只读
Returns a double containing the linear acceleration of the device along the device's z axis.

范例

Linear acceleration is typically read in the Sensor.onreading event callback. In the example below this occurs sixty times a second.

let laSensor = new LinearAccelerationSensor({frequency: 60});
laSensor.addEventListener('reading', e => {
  console.log("Linear acceleration along the X-axis " + laSensor.x);
  console.log("Linear acceleration along the Y-axis " + laSensor.y);
  console.log("Linear acceleration along the Z-axis " + laSensor.z);
});
laSensor.start();
					

规范

规范 状态 Comment
Generic Sensor API 候选推荐 Defines sensors in general.
Accelerometer
The definition of 'LinearAccelerationSensor' in that specification.
候选推荐

浏览器兼容性

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LinearAccelerationSensor Chrome 69 Edge ≤79 Firefox ? IE ? Opera 56 Safari ? WebView Android 69 Chrome Android 69 Firefox Android ? Opera Android 48 Safari iOS ? Samsung Internet Android 10.0
LinearAccelerationSensor() 构造函数 Chrome 69 Edge ≤79 Firefox ? IE ? Opera 56 Safari ? WebView Android 69 Chrome Android 69 Firefox Android ? Opera Android 48 Safari iOS ? Samsung Internet Android 10.0
x Chrome 69 Edge ≤79 Firefox ? IE ? Opera 56 Safari ? WebView Android 69 Chrome Android 69 Firefox Android ? Opera Android 48 Safari iOS ? Samsung Internet Android 10.0
y Chrome 69 Edge ≤79 Firefox ? IE ? Opera 56 Safari ? WebView Android 69 Chrome Android 69 Firefox Android ? Opera Android 48 Safari iOS ? Samsung Internet Android 10.0
z Chrome 69 Edge ≤79 Firefox ? IE ? Opera 56 Safari ? WebView Android 69 Chrome Android 69 Firefox Android ? Opera Android 48 Safari iOS ? Samsung Internet Android 10.0

图例

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