Fixing a crash/ Launcher3 doesn't have predicted apps

        if (cn != null) {

            event.srcTarget[idx].packageNameHash = cn.getPackageName().hashCode();

            event.srcTarget[idx].componentHash = cn.hashCode();

            if (mPredictedApps != null) {

                event.srcTarget[idx].predictedRank = mPredictedApps.indexOf(

                        new ComponentKey(cn, itemInfo.user));

            }

        }

        // Fill in the duration of time spent navigating in Launcher and the container.

        event.elapsedContainerMillis = System.currentTimeMillis() - mElapsedContainerMillis;