Android: use default theme

examples/android/jni/app.d

@@ -40,6 +40,8 @@ extern (C) int UIAppMain(string[] args) {
 						RadioButton { id: rb2; text: "Item 2" }
 						RadioButton { id: rb3; text: "Item 3" }
 					}
+					TextWidget { text: "Switch:" }
+					SwitchWidget { checked: true }
 					TextWidget { text: "and checkboxes" }
 					// arrange some checkboxes horizontally
 					HorizontalLayout {

src/dlangui/platforms/android/androidapp.d

@@ -106,6 +106,10 @@ class AndroidPlatform : Platform {
 	}
 
 	~this() {
+		foreach_reverse(w; _windows) {
+			destroy(w);
+		}
+		_windows.length = 0;
 		termDisplay();
 	}
 
@@ -268,9 +272,11 @@ class AndroidPlatform : Platform {
 				break;
 			case APP_CMD_WINDOW_REDRAW_NEEDED:
 				Log.d("APP_CMD_WINDOW_REDRAW_NEEDED");
+				drawWindow();
 				break;
 			case APP_CMD_CONTENT_RECT_CHANGED:
 				Log.d("APP_CMD_CONTENT_RECT_CHANGED");
+				drawWindow();
 				break;
 			case APP_CMD_CONFIG_CHANGED:
 				Log.d("APP_CMD_CONFIG_CHANGED");
@@ -524,12 +530,15 @@ extern (C) void android_main(android_app* state) {
     }
     initResourceManagers();
 	SCREEN_DPI = getDensityDpi(state);
+	Log.i("SCREEN_DPI=", SCREEN_DPI);
+
+    //currentTheme = createDefaultTheme();
 
-    currentTheme = createDefaultTheme();
 
 	_platform = new AndroidPlatform(state);
 	Platform.setInstance(_platform);
 
+	_platform.uiTheme = "theme_default";
 
     // Make sure glue isn't stripped.
     app_dummy();

views/res/theme_default.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <theme id="theme_default" 
         fontSize="10pt" 
-        fontFace="Helvetica Neue,Verdana,Arial,DejaVu Sans,Liberation Sans,Helvetica"
+        fontFace="Helvetica Neue,Verdana,Arial,DejaVu Sans,Liberation Sans,Helvetica,Roboto,Droid Sans"
         fontFamily="SansSerif"
         >
     <color id="window_background" value="#FFFFFF"/>