Android: Disable Qt's Activity exit path

Reason: When our MainActivity is destroyed we want to initiate saving in
Service if we allow call to this method, Qt will kill the process
prematurely.

(This patches QtActivity which isn't compile until the app is built. So
it won't require recompilation.)

Author: sh-zam

3rdparty/ext_qt/0001-Android-Don-t-invoke-Qt-s-exit-path.patch

@@ -0,0 +1,24 @@
+From 392dd60c48b1009290c9c84821a58784dc185cac Mon Sep 17 00:00:00 2001
+From: Sharaf Zaman <[email protected]>
+Date: Fri, 9 Apr 2021 13:58:56 +0000
+Subject: [PATCH] Android: Don't invoke Qt's exit path
+
+---
+ .../java/src/org/qtproject/qt5/android/bindings/QtActivity.java  | 1 -
+ 1 file changed, 1 deletion(-)
+
+diff --git a/src/android/java/src/org/qtproject/qt5/android/bindings/QtActivity.java b/src/android/java/src/org/qtproject/qt5/android/bindings/QtActivity.java
+index 3348527b3c..8a61f2e9db 100644
+--- a/src/android/java/src/org/qtproject/qt5/android/bindings/QtActivity.java
++++ b/src/android/java/src/org/qtproject/qt5/android/bindings/QtActivity.java
+@@ -396,7 +396,6 @@ public class QtActivity extends Activity
+     protected void onDestroy()
+     {
+         super.onDestroy();
+-        QtApplication.invokeDelegate();
+     }
+     //---------------------------------------------------------------------------
+ 
+-- 
+2.31.0
+

3rdparty/ext_qt/CMakeLists.txt

@@ -156,6 +156,7 @@ elseif (ANDROID)
             COMMAND  ${PATCH_COMMAND} -p1 -d qtbase -i ${CMAKE_CURRENT_SOURCE_DIR}/0055-Android-prevent-out-of-order-events.patch
             COMMAND  ${PATCH_COMMAND} -p1 -d qtbase -i ${CMAKE_CURRENT_SOURCE_DIR}/0056-Android-check-if-the-Uri-is-writable.patch
             COMMAND  ${PATCH_COMMAND} -p1 -d qtbase -i ${CMAKE_CURRENT_SOURCE_DIR}/0056-Android-Give-preference-to-certain-WindowTypes.patch
+            COMMAND  ${PATCH_COMMAND} -p1 -d qtbase -i ${CMAKE_CURRENT_SOURCE_DIR}/0001-Android-Don-t-invoke-Qt-s-exit-path.patch
 
             COMMAND  ${PATCH_COMMAND} -p1 -d qtbase -i ${CMAKE_CURRENT_SOURCE_DIR}/0105-Android-Don-t-hide-Menubar-even-if-MenuKey-is-presen.patch
             COMMAND  ${PATCH_COMMAND} -p1 -d qtbase -i ${CMAKE_CURRENT_SOURCE_DIR}/106-Android-don-t-use-getExternalStorageDirectory-and-ge.patch