use visibility with all flags

Author: codeanticode

core/src/processing/core/PApplet.java

@@ -510,8 +510,6 @@ private void setFullScreenVisibility() {
         // However, this visibility does not fix a bug where the navigation area
         // turns black after resuming the app:
         // https://code.google.com/p/android/issues/detail?id=170752
-
-        visibility = View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | 4096;
       }
       surface.setSystemUiVisibility(visibility);
     }

src/processing/mode/android/AndroidBuild.java

@@ -988,8 +988,7 @@ private void writeFragmentActivity(final File srcDirectory) {
     final PrintWriter writer = PApplet.createWriter(mainActivityFile);
     writer.println("package " + manifest.getPackageName() +";");
     writer.println("import android.app.Activity;");
-    writer.println("import android.os.Bundle;");
-    writer.println("import android.view.Window;");    
+    writer.println("import android.os.Bundle;");    
     writer.println("import android.view.View;");
     writer.println("import android.view.ViewGroup;");    
     writer.println("import android.widget.FrameLayout;");
@@ -1002,8 +1001,7 @@ private void writeFragmentActivity(final File srcDirectory) {
     writer.println("    PFragment fragment;");
     writer.println("    @Override");
     writer.println("    protected void onCreate(Bundle savedInstanceState) {");
-    writer.println("        super.onCreate(savedInstanceState);");
-    writer.println("        requestWindowFeature(Window.FEATURE_NO_TITLE);");    
+    writer.println("        super.onCreate(savedInstanceState);");    
     writer.println("        FrameLayout frame = new FrameLayout(this);");
     writer.println("        frame.setId(viewId);");
     writer.println("        setContentView(frame, new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, "