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Commit b7271fd1 authored by Hyunyoung Song's avatar Hyunyoung Song
Browse files

Change preloading coefficient for widgets tray to improve jankness 

on low performance devices.

Change-Id: I6dfe1161bf596792a7fc8b3c5160a4922e177834
parent e1bd986d

src/com/android/launcher3/widget/WidgetsContainerView.java

+1 −13
Original line number Diff line number Diff line
@@ -55,9 +55,6 @@ public class WidgetsContainerView extends BaseContainerView 
    private static final String TAG = "WidgetsContainerView";

    private static final boolean LOGD = false;



    /* Coefficient multiplied to the screen height for preloading widgets. */

    private static final int PRELOAD_SCREEN_HEIGHT_MULTIPLE = 1;



    /* Global instances that are used inside this container. */

    @Thunk Launcher mLauncher;

    private DragController mDragController;
@@ -97,16 +94,7 @@ public class WidgetsContainerView extends BaseContainerView 
        super.onFinishInflate();

        mRecyclerView = (WidgetsRecyclerView) getContentView().findViewById(R.id.widgets_list_view);

        mRecyclerView.setAdapter(mAdapter);



        // This extends the layout space so that preloading happen for the {@link RecyclerView}

        mRecyclerView.setLayoutManager(new LinearLayoutManager(getContext()) {

            @Override

            protected int getExtraLayoutSpace(State state) {

                DeviceProfile grid = mLauncher.getDeviceProfile();

                return super.getExtraLayoutSpace(state)

                        + grid.availableHeightPx * PRELOAD_SCREEN_HEIGHT_MULTIPLE;

            }

        });

        mRecyclerView.setLayoutManager(new LinearLayoutManager(getContext()));

    }



    //