Android: Differ between ShowMaximized and ShowFullScreen

The default is now ShowMaximized which behaves as it did before,
i.e. each window will fill the screen but the status bar will be
visible. Calling showFullScreen() explicitly will now hide the
status bar to maximize the amount of screen real estate occupied
by the application.

Task-number: QTBUG-33135
Change-Id: If0d0a2ab72f8026e76818290e2b953dbc0dec156
Reviewed-by: BogDan Vatra <bogdan@kde.org>

1 files changed, 34 insertions, 0 deletions

diff --git a/src/plugins/platforms/android/src/androidjnimain.cpp b/src/plugins/platforms/android/src/androidjnimain.cpp
index 8b29a895b1..9ce79f445a 100644
--- a/src/plugins/platforms/android/src/androidjnimain.cpp
+++ b/src/plugins/platforms/android/src/androidjnimain.cpp
@@ -97,6 +97,9 @@ static jmethodID m_createBitmapMethodID = 0;
 static jobject m_ARGB_8888_BitmapConfigValue = 0;
 static jobject m_RGB_565_BitmapConfigValue = 0;
 
+jmethodID m_setFullScreenMethodID = 0;
+static bool m_statusBarShowing = true;
+
 static jclass m_bitmapDrawableClass = 0;
 static jmethodID m_bitmapDrawableConstructorMethodID = 0;
 
@@ -310,6 +313,36 @@ namespace QtAndroid
         return m_activityObject;
     }
 
+    void showStatusBar()
+    {
+        if (m_statusBarShowing)
+            return;
+
+        QtAndroid::AttachedJNIEnv env;
+        if (env.jniEnv == 0) {
+            qWarning("Failed to get JNI Environment.");
+            return;
+        }
+
+        env.jniEnv->CallStaticVoidMethod(m_applicationClass, m_setFullScreenMethodID, false);
+        m_statusBarShowing = true;
+    }
+
+    void hideStatusBar()
+    {
+        if (!m_statusBarShowing)
+            return;
+
+        QtAndroid::AttachedJNIEnv env;
+        if (env.jniEnv == 0) {
+            qWarning("Failed to get JNI Environment.");
+            return;
+        }
+
+        env.jniEnv->CallStaticVoidMethod(m_applicationClass, m_setFullScreenMethodID, true);
+        m_statusBarShowing = false;
+    }
+
     void setApplicationActive()
     {
         if (m_activityActive)
@@ -753,6 +786,7 @@ static int registerNatives(JNIEnv *env)
     jclass clazz;
     FIND_AND_CHECK_CLASS("org/qtproject/qt5/android/QtNative");
     m_applicationClass = static_cast<jclass>(env->NewGlobalRef(clazz));
+    GET_AND_CHECK_STATIC_METHOD(m_setFullScreenMethodID, m_applicationClass, "setFullScreen", "(Z)V");
 
     if (env->RegisterNatives(m_applicationClass, methods, sizeof(methods) / sizeof(methods[0])) < 0) {
         __android_log_print(ANDROID_LOG_FATAL,"Qt", "RegisterNatives failed");