Examples: request Android storage permissions when using QStandardPaths

Some examples uses QStandardPaths, on Android permissions might need to
be explicitly requested to read/write to those paths.

Task-number: QTBUG-80717
Change-Id: Ifb52e1c13ed99dcc82fb79a305b64e538596db7c
Reviewed-by: VaL Doroshchuk <valentyn.doroshchuk@qt.io>
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>

1 files changed, 21 insertions, 0 deletions

diff --git a/examples/multimedia/video/qmlvideo/main.cpp b/examples/multimedia/video/qmlvideo/main.cpp
index e288c0ae4..01178acaa 100644
--- a/examples/multimedia/video/qmlvideo/main.cpp
+++ b/examples/multimedia/video/qmlvideo/main.cpp
@@ -62,6 +62,23 @@
 #include "performancemonitordeclarative.h"
 #endif
 
+#ifdef REQUEST_PERMISSIONS_ON_ANDROID
+#include <QtAndroid>
+
+bool requestStoragePermission() {
+    using namespace QtAndroid;
+
+    QString permission = QStringLiteral("android.permission.WRITE_EXTERNAL_STORAGE");
+    const QHash<QString, PermissionResult> results = requestPermissionsSync(QStringList({permission}));
+    if (!results.contains(permission) || results[permission] == PermissionResult::Denied) {
+        qWarning() << "Couldn't get permission: " << permission;
+        return false;
+    }
+
+    return true;
+}
+#endif
+
 static const QString DefaultFileName1 = "";
 static const QString DefaultFileName2 = "";
 
@@ -72,6 +89,10 @@ int main(int argc, char *argv[])
 #ifdef PERFORMANCEMONITOR_SUPPORT
     PerformanceMonitor::qmlRegisterTypes();
 #endif
+#ifdef REQUEST_PERMISSIONS_ON_ANDROID
+    if (!requestStoragePermission())
+        return -1;
+#endif
 
     QString source1, source2;
     qreal volume = 0.5;