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477 <p>However, be aware that the sensor will deliver your app the batched events based on your report latency <strong>only while the CPU is awake</strong>. Although a hardware sensor that supports batching will continue to collect sensor events while the CPU is asleep, it will not wake the CPU to deliver your app the batched events. When the sensor eventually runs out of its memory for events, it will begin dropping the oldest events in order to save the newest events. You can avoid losing events by waking the device before the sensor fills its memory then call {@link android.hardware.SensorManager#flush flush()} to capture the latest batch of events. To estimate when the memory will be full and should be flushed, call {@link android.hardware.Sensor#getFifoMaxEventCount()} to get the maximum number of sensor events it can save, and divide that number by the rate at which your app desires each event. Use that calculation to set wake alarms with {@link android.app.AlarmManager} that invoke your {@link android.app.Service} (which implements the {@link android.hardware.SensorEventListener}) to flush the sensor.</p>