3 files changed, 12 insertions, 0 deletions
diff --git a/src/plugins/sensors/ios/iosaccelerometer.mm b/src/plugins/sensors/ios/iosaccelerometer.mm
index 5f9c0f16..ef215465 100644
--- a/src/plugins/sensors/ios/iosaccelerometer.mm
+++ b/src/plugins/sensors/ios/iosaccelerometer.mm
@@ -77,6 +77,9 @@ void IOSAccelerometer::timerEvent(QTimerEvent *)
     // Convert from NSTimeInterval to microseconds and G to m/s2, and flip axes:
     CMAccelerometerData *data = m_motionManager.accelerometerData;
     CMAcceleration acc = data.acceleration;
+    // skip update if NaN
+    if (acc.x != acc.x || acc.y != acc.y || acc.z != acc.z)
+        return;
     static const qreal G = 9.8066;
     m_reading.setTimestamp(quint64(data.timestamp * 1e6));
     m_reading.setX(qreal(acc.x) * G * -1);
diff --git a/src/plugins/sensors/ios/iosgyroscope.mm b/src/plugins/sensors/ios/iosgyroscope.mm
index 8dfa3a4a..751786ef 100644
--- a/src/plugins/sensors/ios/iosgyroscope.mm
+++ b/src/plugins/sensors/ios/iosgyroscope.mm
@@ -75,6 +75,9 @@ void IOSGyroscope::timerEvent(QTimerEvent *)
     // Convert NSTimeInterval to microseconds and radians to degrees:
     CMGyroData *data = m_motionManager.gyroData;
     CMRotationRate rate = data.rotationRate;
+    // skip update if NaN
+    if (rate.x != rate.x || rate.y != rate.y || rate.z != rate.z)
+        return;
     m_reading.setTimestamp(quint64(data.timestamp * 1e6));
     m_reading.setX((qreal(rate.x) / M_PI) * 180);
     m_reading.setY((qreal(rate.y) / M_PI) * 180);
diff --git a/src/plugins/sensors/ios/iosmagnetometer.mm b/src/plugins/sensors/ios/iosmagnetometer.mm
index 95f85ae1..3cd8b10e 100644
--- a/src/plugins/sensors/ios/iosmagnetometer.mm
+++ b/src/plugins/sensors/ios/iosmagnetometer.mm
@@ -91,6 +91,9 @@ void IOSMagnetometer::timerEvent(QTimerEvent *)
         CMDeviceMotion *deviceMotion = m_motionManager.deviceMotion;
         CMCalibratedMagneticField calibratedField = deviceMotion.magneticField;
         field = calibratedField.field;
+        // skip update if NaN
+        if (field.x != field.x || field.y != field.y || field.z != field.z)
+            return;
         m_reading.setTimestamp(quint64(deviceMotion.timestamp * 1e6));
 
         switch (calibratedField.accuracy) {
@@ -110,6 +113,9 @@ void IOSMagnetometer::timerEvent(QTimerEvent *)
     } else {
         CMMagnetometerData *data = m_motionManager.magnetometerData;
         field = data.magneticField;
+        // skip update if NaN
+        if (field.x != field.x || field.y != field.y || field.z != field.z)
+            return;
         m_reading.setTimestamp(quint64(data.timestamp * 1e6));
         m_reading.setCalibrationLevel(1.0);
     }