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Disable the scrollable ability on app bar area

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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
This commit is contained in:
Tsung-Mao Fang
2021-06-17 18:25:12 +08:00
parent 19baf0df84
commit 232b3ac12a
1 changed files with 19 additions and 1 deletions
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20
src/com/android/settings/datetime/timezone/BaseTimeZonePicker.java
View File

@@ -27,6 +27,8 @@ import android.widget.LinearLayout;
import android.widget.SearchView; import android.widget.SearchView;
import android.widget.TextView; import android.widget.TextView;
import androidx.annotation.NonNull;
import androidx.coordinatorlayout.widget.CoordinatorLayout;
import androidx.core.view.ViewCompat; import androidx.core.view.ViewCompat;
import androidx.recyclerview.widget.LinearLayoutManager; import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView; import androidx.recyclerview.widget.RecyclerView;
@@ -95,6 +97,7 @@ public abstract class BaseTimeZonePicker extends InstrumentedFragment
LinearLayoutManager.VERTICAL, /* reverseLayout */ false)); LinearLayoutManager.VERTICAL, /* reverseLayout */ false));
mRecyclerView.setAdapter(mAdapter); mRecyclerView.setAdapter(mAdapter);
mAppBarLayout = getActivity().findViewById(R.id.app_bar); mAppBarLayout = getActivity().findViewById(R.id.app_bar);
disableToolBarScrollableBehavior();
// Initialize TimeZoneDataLoader only when mRecyclerView is ready to avoid race // Initialize TimeZoneDataLoader only when mRecyclerView is ready to avoid race
// during onDateLoaderReady callback. // during onDateLoaderReady callback.
@@ -160,13 +163,15 @@ public abstract class BaseTimeZonePicker extends InstrumentedFragment
public boolean onMenuItemActionExpand(MenuItem item) { public boolean onMenuItemActionExpand(MenuItem item) {
// To prevent a large space on tool bar. // To prevent a large space on tool bar.
mAppBarLayout.setExpanded(false /*expanded*/, false /*animate*/); 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); ViewCompat.setNestedScrollingEnabled(mRecyclerView, false);
return true; return true;
} }
@Override @Override
public boolean onMenuItemActionCollapse(MenuItem item) { 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); ViewCompat.setNestedScrollingEnabled(mRecyclerView, true);
return true; return true;
} }
@@ -188,4 +193,17 @@ public abstract class BaseTimeZonePicker extends InstrumentedFragment
void onListItemClick(T item); 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);
}
} }