Close the current input method when attached view doesn't have a handler

Bug: 7187452
Change-Id: Iba4f7ac89f5806e871aaeb97f366935b83b95a5a

core/java/android/view/inputmethod/InputMethodManager.java

@@ -1078,8 +1078,11 @@ public final class InputMethodManager {
         Handler vh = view.getHandler();
         if (vh == null) {
             // If the view doesn't have a handler, something has changed out
-            // from under us, so just bail.
-            if (DEBUG) Log.v(TAG, "ABORT input: no handler for view!");
+            // from under us, so just close the current input.
+            // If we don't close the current input, the current input method can remain on the
+            // screen without a connection.
+            if (DEBUG) Log.v(TAG, "ABORT input: no handler for view! Close current input.");
+            closeCurrentInput();
             return false;
         }
         if (vh.getLooper() != Looper.myLooper()) {

services/java/com/android/server/InputMethodManagerService.java

@@ -1843,7 +1843,7 @@ public class InputMethodManagerService extends IInputMethodManager.Stub
 
                 if (mCurFocusedWindow == windowToken) {
                     Slog.w(TAG, "Window already focused, ignoring focus gain of: " + client
-                            + " attribute=" + attribute);
+                            + " attribute=" + attribute + ", token = " + windowToken);
                     if (attribute != null) {
                         return startInputUncheckedLocked(cs, inputContext, attribute,
                                 controlFlags);