commit e39690b2183e7d60f268b9af4eaeb36c1c1e2fb4
author Sunny Goyal <sunnygoyal@google.com> Thu Aug 02 13:35:07 2018 -0700
committer Sunny Goyal <sunnygoyal@google.com> Thu Aug 02 13:35:38 2018 -0700
tree 7a551d36c67466d0d33ea123a11fad28393330f1
parent 0b74a7fe5e132cb647b767b1ec2ada89a7a0c611

Launching last task when back button is pressed in overview

Bug: 111158326
Change-Id: Ib38f12f177780d15dbee69e4a27c21aaa9a3e087

src/com/android/launcher3/LauncherState.java

diff --git a/src/com/android/launcher3/LauncherState.java b/src/com/android/launcher3/LauncherState.java
index 8a15b24..bbe44c0 100644
--- a/src/com/android/launcher3/LauncherState.java
+++ b/src/com/android/launcher3/LauncherState.java
@@ -30,6 +30,7 @@
 import com.android.launcher3.uioverrides.FastOverviewState;
 import com.android.launcher3.uioverrides.OverviewState;
 import com.android.launcher3.uioverrides.UiFactory;
+import com.android.launcher3.userevent.nano.LauncherLogProto.Action;
 import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
 
 import java.util.Arrays;
@@ -251,6 +252,16 @@
         }
     }
 
+    public void onBackPressed(Launcher launcher) {
+        if (this != NORMAL) {
+            LauncherStateManager lsm = launcher.getStateManager();
+            LauncherState lastState = lsm.getLastState();
+            launcher.getUserEventDispatcher().logActionCommand(Action.Command.BACK,
+                    containerType, lastState.containerType);
+            lsm.goToState(lastState);
+        }
+    }
+
     protected static void dispatchWindowStateChanged(Launcher launcher) {
         launcher.getWindow().getDecorView().sendAccessibilityEvent(TYPE_WINDOW_STATE_CHANGED);
     }