Let sendShowMessage called from hide to show

Dialog's onShow callback is not called from hide to show.
Detailed information is written in the bug link.

Bug: 73147112
Test: Manual test with the demo

Change-Id: I1d32d9695c18a206b661a1bd7c0dba25dbfbf28b
Signed-off-by: tiansiming [田思明] <tiansiming@xiaomi.com>

core/java/android/app/Dialog.java

@@ -291,7 +291,10 @@ public class Dialog implements DialogInterface, Window.Callback,
                 if (mWindow.hasFeature(Window.FEATURE_ACTION_BAR)) {
                     mWindow.invalidatePanelMenu(Window.FEATURE_ACTION_BAR);
                 }
-                mDecor.setVisibility(View.VISIBLE);
+                if (mDecor.getVisibility() != View.VISIBLE) {
+                    mDecor.setVisibility(View.VISIBLE);
+                    sendShowMessage();
+                }
             }
             return;
         }