diff --git a/src/SFML/Main/MainAndroid.cpp b/src/SFML/Main/MainAndroid.cpp
index b3c681fe3..08e232ab6 100644
--- a/src/SFML/Main/MainAndroid.cpp
+++ b/src/SFML/Main/MainAndroid.cpp
@@ -440,8 +440,15 @@ void ANativeActivity_onCreate(ANativeActivity* activity, void* savedState, size_
     jobject objectDecorView = lJNIEnv->CallObjectMethod(objectWindow, methodGetDecorView);
 
     jclass classView = lJNIEnv->FindClass("android/view/View");
+
+    jfieldID FieldSYSTEM_UI_FLAG_HIDE_NAVIGATION = lJNIEnv->GetStaticFieldID(classView, "SYSTEM_UI_FLAG_HIDE_NAVIGATION", "I");
+    jint SYSTEM_UI_FLAG_HIDE_NAVIGATION = lJNIEnv->GetStaticIntField(classView, FieldSYSTEM_UI_FLAG_HIDE_NAVIGATION);
+
+    jfieldID FieldSYSTEM_UI_FLAG_FULLSCREEN = lJNIEnv->GetStaticFieldID(classView, "SYSTEM_UI_FLAG_FULLSCREEN", "I");
+    jint SYSTEM_UI_FLAG_FULLSCREEN = lJNIEnv->GetStaticIntField(classView, FieldSYSTEM_UI_FLAG_FULLSCREEN);
+
     jmethodID methodsetSystemUiVisibility = lJNIEnv->GetMethodID(classView, "setSystemUiVisibility", "(I)V");
-    lJNIEnv->CallVoidMethod(objectDecorView, methodsetSystemUiVisibility, (jint)(2 | 4));
+    lJNIEnv->CallVoidMethod(objectDecorView, methodsetSystemUiVisibility, SYSTEM_UI_FLAG_HIDE_NAVIGATION | SYSTEM_UI_FLAG_FULLSCREEN);
 
     // Initialize the display
     eglInitialize(states->display, NULL, NULL);
diff --git a/src/SFML/Main/SFMLActivity.cpp b/src/SFML/Main/SFMLActivity.cpp
index d0c19ec3c..c94646694 100644
--- a/src/SFML/Main/SFMLActivity.cpp
+++ b/src/SFML/Main/SFMLActivity.cpp
@@ -152,13 +152,11 @@ void ANativeActivity_onCreate(ANativeActivity* activity, void* savedState, size_
 
     jclass ClassPackageManager = lJNIEnv->FindClass("android/content/pm/PackageManager");
 
-    //jfieldID FieldGET_META_DATA = lJNIEnv->GetStaticFieldID(ClassPackageManager, "GET_META_DATA", "L");
-    //jobject GET_META_DATA = lJNIEnv->GetStaticObjectField(ClassPackageManager, FieldGET_META_DATA);
-    // getActivityInfo(getIntent().getComponent(), PackageManager.GET_META_DATA) -> ActivityInfo object
-    jmethodID MethodGetActivityInfo = lJNIEnv->GetMethodID(ClassPackageManager, "getActivityInfo", "(Landroid/content/ComponentName;I)Landroid/content/pm/ActivityInfo;");
+    jfieldID FieldGET_META_DATA = lJNIEnv->GetStaticFieldID(ClassPackageManager, "GET_META_DATA", "I");
+    jint GET_META_DATA = lJNIEnv->GetStaticIntField(ClassPackageManager, FieldGET_META_DATA);
 
-    // todo: do not hardcode the GET_META_DATA integer value but retrieve it instead
-    jobject ObjectActivityInfo = lJNIEnv->CallObjectMethod(ObjectPackageManager, MethodGetActivityInfo, ObjectComponentName, (jint)128);
+    jmethodID MethodGetActivityInfo = lJNIEnv->GetMethodID(ClassPackageManager, "getActivityInfo", "(Landroid/content/ComponentName;I)Landroid/content/pm/ActivityInfo;");
+    jobject ObjectActivityInfo = lJNIEnv->CallObjectMethod(ObjectPackageManager, MethodGetActivityInfo, ObjectComponentName, GET_META_DATA);
 
     // Load our libraries in reverse order
     loadLibrary("c++_shared", lJNIEnv, ObjectActivityInfo);