Make the build work with Qt 6.8.1 (and newer)

As for now, this is just for Qt debuging as multiple stuff is broken in Qt 6.8.1
- The new style has serious render issues
- Reading files in a directory is by multiple order of magnitude slower
- The zoom gestures do not work reliably

Qt versions prior to 6.8.1 are completely unusable due to the broken main menu.

pkg/android/AndroidManifest.xml

@@ -1,10 +1,30 @@
 <?xml version="1.0"?>
-<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="org.gpxsee.gpxsee" android:installLocation="auto" android:versionCode="-- %%INSERT_VERSION_CODE%% --" android:versionName="-- %%INSERT_VERSION_NAME%% --">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="org.gpxsee.gpxsee"
+    android:installLocation="auto"
+    android:versionCode="-- %%INSERT_VERSION_CODE%% --"
+    android:versionName="-- %%INSERT_VERSION_NAME%% --">
     <!-- %%INSERT_PERMISSIONS -->
     <!-- %%INSERT_FEATURES -->
-    <supports-screens android:anyDensity="true" android:largeScreens="true" android:normalScreens="true" android:smallScreens="true"/>
-    <application android:name="org.qtproject.qt.android.bindings.QtApplication" android:extractNativeLibs="true" android:hardwareAccelerated="true" android:label="-- %%INSERT_APP_NAME%% --" android:requestLegacyExternalStorage="true" android:allowNativeHeapPointerTagging="false" android:icon="@drawable/icon">
-        <activity android:name="org.gpxsee.gpxsee.Activity" android:configChanges="orientation|uiMode|screenLayout|screenSize|smallestScreenSize|layoutDirection|locale|fontScale|keyboard|keyboardHidden|navigation|mcc|mnc|density" android:label="-- %%INSERT_APP_NAME%% --" android:launchMode="singleTop" android:screenOrientation="unspecified" android:exported="true">
+    <supports-screens
+        android:anyDensity="true"
+        android:largeScreens="true"
+        android:normalScreens="true"
+        android:smallScreens="true"/>
+    <application
+        android:name="org.qtproject.qt.android.bindings.QtApplication"
+        android:hardwareAccelerated="true"
+        android:label="-- %%INSERT_APP_NAME%% --"
+        android:requestLegacyExternalStorage="true"
+        android:allowBackup="true"
+        android:fullBackupOnly="false"
+        android:icon="@drawable/icon">
+        <activity
+            android:name="org.gpxsee.gpxsee.Activity"
+            android:configChanges="orientation|uiMode|screenLayout|screenSize|smallestScreenSize|layoutDirection|locale|fontScale|keyboard|keyboardHidden|navigation|mcc|mnc|density"
+            android:launchMode="singleTop"
+            android:screenOrientation="unspecified"
+            android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
                 <category android:name="android.intent.category.LAUNCHER"/>
@@ -22,10 +42,22 @@
                 <data android:scheme="content" android:mimeType="image/tiff"/>
             </intent-filter>
 
-            <meta-data android:name="android.app.lib_name" android:value="-- %%INSERT_APP_LIB_NAME%% --"/>
-            <meta-data android:name="android.app.arguments" android:value="-- %%INSERT_APP_ARGUMENTS%% --"/>
-            <meta-data android:name="android.app.extract_android_style" android:value="minimal"/>
+          <meta-data
+                android:name="android.app.lib_name"
+                android:value="-- %%INSERT_APP_LIB_NAME%% --"/>
+          <meta-data
+                android:name="android.app.arguments"
+                android:value="-- %%INSERT_APP_ARGUMENTS%% --"/>
         </activity>
-    </application>
 
+        <provider
+            android:name="androidx.core.content.FileProvider"
+            android:authorities="${applicationId}.qtprovider"
+            android:exported="false"
+            android:grantUriPermissions="true">
+            <meta-data
+                android:name="android.support.FILE_PROVIDER_PATHS"
+                android:resource="@xml/qtprovider_paths"/>
+        </provider>
+    </application>
 </manifest>

pkg/android/build.gradle

@@ -5,7 +5,7 @@ buildscript {
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:7.2.1'
+        classpath 'com.android.tools.build:gradle:8.6.0'
     }
 }
 
@@ -14,10 +14,12 @@ repositories {
     mavenCentral()
 }
 
-apply plugin: 'com.android.application'
+apply plugin: qtGradlePluginType
 
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar', '*.aar'])
+    //noinspection GradleDependency
+    implementation 'androidx.core:core:1.13.1'
 }
 
 android {
@@ -28,14 +30,15 @@ android {
      * - qtAndroidDir - holds the path to qt android files
      *                   needed to build any Qt application
      *                   on Android.
+     * - qtGradlePluginType - whether to build an app or a library
      *
      * are defined in gradle.properties file. This file is
      * updated by QtCreator and androiddeployqt tools.
      * Changing them manually might break the compilation!
      *******************************************************/
 
-    //compileSdkVersion androidCompileSdkVersion
-    compileSdkVersion "android-33"
+    namespace androidPackageName
+    compileSdkVersion androidCompileSdkVersion
     buildToolsVersion androidBuildToolsVersion
     ndkVersion androidNdkVersion
 

pkg/android/res/values/libs.xml

@@ -17,4 +17,5 @@
     <string name="static_init_classes"><!-- %%INSERT_INIT_CLASSES%% --></string>
     <string name="use_local_qt_libs"><!-- %%USE_LOCAL_QT_LIBS%% --></string>
     <string name="bundle_local_qt_libs"><!-- %%BUNDLE_LOCAL_QT_LIBS%% --></string>
+    <string name="system_libs_prefix"><!-- %%SYSTEM_LIBS_PREFIX%% --></string>
 </resources>