Protect orientation and rotation provider against buffer fill

On Samsung Galaxy S4 it looks like the rotation sensor delivers events
faster than cgeo can handle them during some lists operations
 (in SENSOR_DELAY_NORMAL mode).

Part of work on #4491.

1 files changed, 1 insertions, 1 deletions

diff --git a/main/src/cgeo/geocaching/sensors/RotationProvider.java b/main/src/cgeo/geocaching/sensors/RotationProvider.java
index 09fac00..4c4eb97 100644
--- a/main/src/cgeo/geocaching/sensors/RotationProvider.java
+++ b/main/src/cgeo/geocaching/sensors/RotationProvider.java
@@ -77,7 +77,7 @@ public class RotationProvider extends LooperCallbacks<Float> implements SensorEv
     }
 
     public static Observable<Float> create(final Context context, final boolean lowPower) {
-        return Observable.create(new RotationProvider(context, lowPower));
+        return Observable.create(new RotationProvider(context, lowPower)).onBackpressureDrop();
     }
 
 }