Use this API to listen for accelerometer data changes. The callback provides x, y, and z axis acceleration values.
Parameters
| Property | Type | Required | Description |
|---|
| callback | Function | Yes | Callback function when accelerometer data changes |
Callback Parameters
| Property | Type | Description |
|---|
| x | Number | Acceleration along X axis |
| y | Number | Acceleration along Y axis |
| z | Number | Acceleration along Z axis |
Code Example
Basic Usage
my.onAccelerometerChange((res) => {
console.log('X:', res.x);
console.log('Y:', res.y);
console.log('Z:', res.z);
});
Motion Detection
Page({
data: {
lastShake: 0
},
onLoad() {
my.onAccelerometerChange((res) => {
const acceleration = Math.sqrt(
res.x * res.x + res.y * res.y + res.z * res.z
);
if (acceleration > 1.5) {
const now = Date.now();
if (now - this.data.lastShake > 1000) {
this.setData({ lastShake: now });
this.handleShake();
}
}
});
},
handleShake() {
my.vibrate();
console.log('Device shaken!');
}
});
Tilt Detection for Games
Page({
onLoad() {
my.onAccelerometerChange((res) => {
// Use x/y for tilt-based controls
this.setData({
tiltX: res.x * 90, // Convert to degrees
tiltY: res.y * 90
});
});
}
});
Call my.startAccelerometer before using this API to begin receiving accelerometer data.
my.offAccelerometerChange
Stop listening for changes
my.startAccelerometer
Start accelerometer
