Fix 2271141 - Pressing the bottom corner of the screen when the applications menu is visible will

switch the home screen

src/com/android/launcher2/Launcher.java

@@ -589,12 +589,16 @@ public final class Launcher extends Activity
 
     @SuppressWarnings({"UnusedDeclaration"})
     public void previousScreen(View v) {
-        mWorkspace.scrollLeft();
+        if (!isAllAppsVisible()) {
+            mWorkspace.scrollLeft();
+        }
     }
 
     @SuppressWarnings({"UnusedDeclaration"})
     public void nextScreen(View v) {
-        mWorkspace.scrollRight();
+        if (!isAllAppsVisible()) {
+            mWorkspace.scrollRight();
+        }
     }
     
     /**