commit 3f2637faee86d79b4debec61560ca2de8b268a0c
author Sunny Goyal <sunnygoyal@google.com> Thu May 05 12:24:08 2022 -0700
committer Sunny Goyal <sunnygoyal@google.com> Mon May 16 14:40:19 2022 -0700
tree 430b7716c61befb017281924bb6104b2d0cc089c
parent 4608bd00dc51a8ac571454aaf85a7eddc73e9ec6

Adding support for extending back behavior in Launcher

Bug: 231224820
Test: Manual
Change-Id: I9accc30c01dce5f6920b611cfeed9fa0584d2846

src/com/android/launcher3/Launcher.java

diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 135b88d..e84e60e 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -2032,13 +2032,16 @@
         // Note: There should be at most one log per method call. This is enforced implicitly
         // by using if-else statements.
         AbstractFloatingView topView = AbstractFloatingView.getTopOpenView(this);
-        if (topView != null && topView.onBackPressed()) {
-            // Handled by the floating view.
-        } else {
-            mStateManager.getState().onBackPressed(this);
+        if (topView == null || !topView.onBackPressed()) {
+            // Not handled by the floating view.
+            onStateBack();
         }
     }
 
+    protected void onStateBack() {
+        mStateManager.getState().onBackPressed(this);
+    }
+
     protected void onScreenOff() {
         // Reset AllApps to its initial state only if we are not in the middle of
         // processing a multi-step drop

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

diff --git a/src/com/android/launcher3/allapps/AllAppsRecyclerView.java b/src/com/android/launcher3/allapps/AllAppsRecyclerView.java
index 096e2c8..88e7fc0 100644
--- a/src/com/android/launcher3/allapps/AllAppsRecyclerView.java
+++ b/src/com/android/launcher3/allapps/AllAppsRecyclerView.java
@@ -15,9 +15,7 @@
  */
 package com.android.launcher3.allapps;
 
-import static android.view.View.MeasureSpec.EXACTLY;
 import static android.view.View.MeasureSpec.UNSPECIFIED;
-import static android.view.View.MeasureSpec.makeMeasureSpec;
 
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_ALLAPPS_SCROLLED;
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_ALLAPPS_VERTICAL_SWIPE_BEGIN;
@@ -47,7 +45,6 @@
 import com.android.launcher3.views.ActivityContext;
 import com.android.launcher3.views.RecyclerViewFastScroller;
 
-import java.util.ArrayList;
 import java.util.List;
 
 /**
@@ -97,8 +94,6 @@
     private AllAppsBackgroundDrawable mEmptySearchBackground;
     private int mEmptySearchBackgroundTopOffset;
 
-    private ArrayList<View> mAutoSizedOverlays = new ArrayList<>();
-
     public AllAppsRecyclerView(Context context) {
         this(context, null);
     }
@@ -172,30 +167,6 @@
     protected void onSizeChanged(int w, int h, int oldw, int oldh) {
         updateEmptySearchBackgroundBounds();
         updatePoolSize();
-        for (int i = 0; i < mAutoSizedOverlays.size(); i++) {
-            View overlay = mAutoSizedOverlays.get(i);
-            overlay.measure(makeMeasureSpec(w, EXACTLY), makeMeasureSpec(w, EXACTLY));
-            overlay.layout(0, 0, w, h);
-        }
-    }
-
-    /**
-     * Adds an overlay that automatically rescales with the recyclerview.
-     */
-    public void addAutoSizedOverlay(View overlay) {
-        mAutoSizedOverlays.add(overlay);
-        getOverlay().add(overlay);
-        onSizeChanged(getWidth(), getHeight(), getWidth(), getHeight());
-    }
-
-    /**
-     * Clears auto scaling overlay views added by #addAutoSizedOverlay
-     */
-    public void clearAutoSizedOverlays() {
-        for (View v : mAutoSizedOverlays) {
-            getOverlay().remove(v);
-        }
-        mAutoSizedOverlays.clear();
     }
 
     public void onSearchResultsChanged() {