Using different swipe length to switch to Overview.

Depends on whether swiping from Workspace or Background.

Change-Id: I0f647e85080ee1458a0f18cb132b87890379260e

tests/tapl/com/android/launcher3/tapl/Background.java

@@ -62,7 +62,7 @@ public class Background extends LauncherInstrumentation.VisibleContainer {
             final int height = mLauncher.getDevice().getDisplayHeight();
             final UiObject2 navBar = mLauncher.getSystemUiObject("navigation_bar_frame");
 
-            int swipeLength = Math.round(100 * mLauncher.getDisplayDensity());
+            int swipeLength = Math.round(getSwipeLength() * mLauncher.getDisplayDensity());
             mLauncher.swipe(
                     navBar.getVisibleBounds().centerX(), navBar.getVisibleBounds().centerY(),
                     navBar.getVisibleBounds().centerX(), height - swipeLength,
@@ -71,4 +71,8 @@ public class Background extends LauncherInstrumentation.VisibleContainer {
             mLauncher.getSystemUiObject("recent_apps").click();
         }
     }
+
+    protected int getSwipeLength() {
+        return 200;
+    }
 }

tests/tapl/com/android/launcher3/tapl/Workspace.java

@@ -160,4 +160,9 @@ public final class Workspace extends Home {
         mLauncher.getDevice().pressKeyCode(KeyEvent.KEYCODE_W, KeyEvent.META_CTRL_ON);
         return new Widgets(mLauncher);
     }
+
+    @Override
+    protected int getSwipeLength() {
+        return 100;
+    }
 }