Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 232b3ac1 authored by Tsung-Mao Fang's avatar Tsung-Mao Fang
Browse files

Disable the scrollable ability on app bar area 

As title, we do not allow user can scroll app bar while
the search menu is expanding.
So, we can ignore all drag events on app bar.

Test: Can not scroll on the app bar area
Fix: 181741353
Change-Id: I20c0b69059cdc4d13a15abd810a725d4591f6396
parent 19baf0df

src/com/android/settings/datetime/timezone/BaseTimeZonePicker.java

+19 −1
Original line number Diff line number Diff line
@@ -27,6 +27,8 @@ import android.widget.LinearLayout; 
import android.widget.SearchView;

import android.widget.TextView;



import androidx.annotation.NonNull;

import androidx.coordinatorlayout.widget.CoordinatorLayout;

import androidx.core.view.ViewCompat;

import androidx.recyclerview.widget.LinearLayoutManager;

import androidx.recyclerview.widget.RecyclerView;
@@ -95,6 +97,7 @@ public abstract class BaseTimeZonePicker extends InstrumentedFragment 
                LinearLayoutManager.VERTICAL, /* reverseLayout */ false));

        mRecyclerView.setAdapter(mAdapter);

        mAppBarLayout = getActivity().findViewById(R.id.app_bar);

        disableToolBarScrollableBehavior();



        // Initialize TimeZoneDataLoader only when mRecyclerView is ready to avoid race

        // during onDateLoaderReady callback.
@@ -160,13 +163,15 @@ public abstract class BaseTimeZonePicker extends InstrumentedFragment 
    public boolean onMenuItemActionExpand(MenuItem item) {

        // To prevent a large space on tool bar.

        mAppBarLayout.setExpanded(false /*expanded*/, false /*animate*/);

        // To prevent user can expand the collpasing tool bar view.

        // To prevent user can expand the collapsing tool bar view.

        ViewCompat.setNestedScrollingEnabled(mRecyclerView, false);

        return true;

    }



    @Override

    public boolean onMenuItemActionCollapse(MenuItem item) {

        // We keep the collapsed status after user cancel the search function.

        mAppBarLayout.setExpanded(false /*expanded*/, false /*animate*/);

        ViewCompat.setNestedScrollingEnabled(mRecyclerView, true);

        return true;

    }
@@ -188,4 +193,17 @@ public abstract class BaseTimeZonePicker extends InstrumentedFragment 
        void onListItemClick(T item);

    }



    private void disableToolBarScrollableBehavior() {

        CoordinatorLayout.LayoutParams params =

                (CoordinatorLayout.LayoutParams) mAppBarLayout.getLayoutParams();

        AppBarLayout.Behavior behavior = new AppBarLayout.Behavior();

        behavior.setDragCallback(

                new AppBarLayout.Behavior.DragCallback() {

                    @Override

                    public boolean canDrag(@NonNull AppBarLayout appBarLayout) {

                        return false;

                    }

                });

        params.setBehavior(behavior);

    }

}