Fixed keyboard disappear on empty search

- Closes : #4095

src/com/android/launcher3/allapps/ActivityAllAppsContainerView.java

@@ -544,17 +544,12 @@ public void onActivePageChanged(int currentActivePage) {
             // Will be called at the end of the animation.
             return;
         }
-        if (currentActivePage != SEARCH) {
-            mActivityContext.hideKeyboard();
-        }
         if (mAH.get(currentActivePage).mRecyclerView != null) {
             mAH.get(currentActivePage).mRecyclerView.bindFastScrollbar(mFastScroller);
         }
         // Header keeps track of active recycler view to properly render header
         // protection.
         mHeader.setActiveRV(currentActivePage);
-        reset(true /* animate */, !isSearching() /* exitSearch */);
-
         mWorkManager.onActivePageChanged(currentActivePage);
     }
 
@@ -846,7 +841,7 @@ public int getFloatingSearchBarRestingMarginBottom() {
      */
     public int getFloatingSearchBarRestingMarginStart() {
         DeviceProfile dp = mActivityContext.getDeviceProfile();
-        return dp.allAppsLeftRightMargin + dp.getAllAppsIconStartMargin(mContext);
+        return dp.allAppsLeftRightMargin + dp.getAllAppsIconStartMargin(mActivityContext);
     }
 
     /**
@@ -862,7 +857,7 @@ public int getFloatingSearchBarRestingMarginStart() {
      */
     public int getFloatingSearchBarRestingMarginEnd() {
         DeviceProfile dp = mActivityContext.getDeviceProfile();
-        return dp.allAppsLeftRightMargin + dp.getAllAppsIconStartMargin(mContext);
+        return dp.allAppsLeftRightMargin + dp.getAllAppsIconStartMargin(mActivityContext);
     }
 
     private void layoutBelowSearchContainer(View v, boolean includeTabsMargin) {