[英]How to read only once from Android build in Accelerometer per second?
在 sensorManager 的幫助下,我正在讀取加速度計讀數。 目前最慢的設置,即 SENSOR_DELEY_NORMAL ,加速度計每秒讀取大約 10 次。 有什么方法可以減少發送閱讀,可能是每秒一次。
@Override
public void onSensorChanged(SensorEvent sensorEvent) {
Sensor mySensor = sensorEvent.sensor;
if (mySensor.getType() == Sensor.TYPE_ACCELEROMETER) {
x = sensorEvent.values[0];
y = sensorEvent.values[1];
z = sensorEvent.values[2];
rootSquare = Math.sqrt(Math.pow(x, 2) + Math.pow(y, 2) + Math.pow(z, 2));
//it reads every second 10 times ie 200 millisecon
}
@Override
protected void onResume() {
super.onResume();
sensorManager.registerListener(this, accelorometer, SensorManager.SENSOR_DELAY_NORMAL);
}
根據這個答案,您還可以定義自己的速率,例如 1000 ms = 1s:
@Override
public void onSensorChanged(SensorEvent sensorEvent) {
Sensor mySensor = sensorEvent.sensor;
if (mySensor.getType() == Sensor.TYPE_ACCELEROMETER) {
x = sensorEvent.values[0];
y = sensorEvent.values[1];
z = sensorEvent.values[2];
rootSquare = Math.sqrt(Math.pow(x, 2) + Math.pow(y, 2) + Math.pow(z, 2));
//it reads every second 10 times ie 200 millisecon
}
@Override
protected void onResume() {
super.onResume();
int READINGRATE_ONE_SEC = 1000000;
sensorManager.registerListener(this, accelorometer, READINGRATE_ONE_SEC);
}
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