commit 3f8f0a4356fe2da42ceecfdf5be4676dd2280e41
author Mill Chen <millchen@google.com> Mon Jun 21 17:26:14 2021 +0800
committer Mill Chen <millchen@google.com> Tue Jun 22 05:30:01 2021 +0800
tree ed687a523b9147486879fe6083bef14ea1953989
parent daeda0525b73c1b5b4275034b5e160bd46b8186a

Dissable scrolling behavior for collapsing toolbar

We intended to make subsetting pages disable the scrolling behavior
within the collapsing toolbar area. The collapsing toolbar is still
able to be expanded/collapsed depending on the content of page.

Fix: 191614437
Fix: 189003332
Test: manual test
Cannot scroll/drag with the collapsing toolbar area

Change-Id: I6755268781b8b3d1a76bf71f9e39e6de4eeb76e3

src/com/android/settings/core/SettingsBaseActivity.java

diff --git a/src/com/android/settings/core/SettingsBaseActivity.java b/src/com/android/settings/core/SettingsBaseActivity.java
index 47993cf..aceb3d7 100644
--- a/src/com/android/settings/core/SettingsBaseActivity.java
+++ b/src/com/android/settings/core/SettingsBaseActivity.java
@@ -35,6 +35,7 @@
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.coordinatorlayout.widget.CoordinatorLayout;
 import androidx.fragment.app.FragmentActivity;
 
 import com.android.settings.R;
@@ -45,6 +46,7 @@
 import com.android.settingslib.transition.SettingsTransitionHelper;
 import com.android.settingslib.transition.SettingsTransitionHelper.TransitionType;
 
+import com.google.android.material.appbar.AppBarLayout;
 import com.google.android.material.appbar.CollapsingToolbarLayout;
 import com.google.android.material.resources.TextAppearanceConfig;
 import com.google.android.setupcompat.util.WizardManagerHelper;
@@ -64,6 +66,7 @@
 
     protected CategoryMixin mCategoryMixin;
     protected CollapsingToolbarLayout mCollapsingToolbarLayout;
+    protected AppBarLayout mAppBarLayout;
     private Toolbar mToolbar;
 
     @Override
@@ -108,6 +111,8 @@
         if (isToolbarEnabled() && !isAnySetupWizard) {
             super.setContentView(R.layout.collapsing_toolbar_base_layout);
             mCollapsingToolbarLayout = findViewById(R.id.collapsing_toolbar);
+            mAppBarLayout = findViewById(R.id.app_bar);
+            disableCollapsingToolbarLayoutScrollingBehavior();
         } else {
             super.setContentView(R.layout.settings_base_layout);
         }
@@ -274,6 +279,20 @@
         return false;
     }
 
+    private void disableCollapsingToolbarLayoutScrollingBehavior() {
+        final CoordinatorLayout.LayoutParams params =
+                (CoordinatorLayout.LayoutParams) mAppBarLayout.getLayoutParams();
+        final AppBarLayout.Behavior behavior = new AppBarLayout.Behavior();
+        behavior.setDragCallback(
+                new AppBarLayout.Behavior.DragCallback() {
+                    @Override
+                    public boolean canDrag(@NonNull AppBarLayout appBarLayout) {
+                        return false;
+                    }
+                });
+        params.setBehavior(behavior);
+    }
+
     private int getTransitionType(Intent intent) {
         return intent.getIntExtra(EXTRA_PAGE_TRANSITION_TYPE,
                 SettingsTransitionHelper.TransitionType.TRANSITION_SHARED_AXIS);