Android accelerometer not working when screen is turned off

Question

I\'m developing an application for my final thesis on computer science, and I need to collect and log accelerometer data. I need to acquire it for a whole day long, so there

Answer 1

I applied the PARTIAL_WAKE_LOCK and it worked like charm to me. Tested on OS 5.0, 6.0 & 7.0. Here's my code to acquire and release wake lock. Be careful it increased the battery drainage, so acquire and release it intelligently.

public void acquireWakeLock() {
    final PowerManager powerManager = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE);
    releaseWakeLock();
    //Acquire new wake lock
    mWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "PARTIAL_WAKE_LOCK");
    mWakeLock.acquire();
}

public void releaseWakeLock() {
    if (mWakeLock != null && mWakeLock.isHeld()) {
        mWakeLock.release();
        mWakeLock = null;
    }
}

Ref: https://developer.android.com/training/scheduling/wakelock.html#cpu

I am working on a prediction sdk, who use device sensors (accelerometer/gyroscope) data and predicts the user events. I experienced the same issue.