Prevent IME from being closed by the notification panel.

Bug: 6450921
Change-Id: I124c3776728456fdd71e57cfcf898b11a8dfc7ec

Author: dsandler

packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java

@@ -991,13 +991,12 @@ private void makeExpandedVisible() {
         // Expand the window to encompass the full screen in anticipation of the drag.
         // This is only possible to do atomically because the status bar is at the top of the screen!
         WindowManager.LayoutParams lp = (WindowManager.LayoutParams) mStatusBarWindow.getLayoutParams();
-        lp.flags &= (~WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE);
+        lp.flags &= ~WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE;
+        lp.flags |= WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM;
         lp.height = ViewGroup.LayoutParams.MATCH_PARENT;
         final WindowManager wm = WindowManagerImpl.getDefault();
         wm.updateViewLayout(mStatusBarWindow, lp);
 
-        mStatusBarWindow.requestFocus(View.FOCUS_FORWARD);
-
         visibilityChanged(true);
     }
 
@@ -1084,7 +1083,8 @@ void performCollapse() {
         // Shrink the window to the size of the status bar only
         WindowManager.LayoutParams lp = (WindowManager.LayoutParams) mStatusBarWindow.getLayoutParams();
         lp.height = getStatusBarHeight();
-        lp.flags |= (WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE);
+        lp.flags |= WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE;
+        lp.flags &= ~WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM;
         final WindowManager wm = WindowManagerImpl.getDefault();
         wm.updateViewLayout(mStatusBarWindow, lp);