Android: Fix Vulkan immersive startup.

Would commonly not actually start with immersive resolution due to race
conditions in setting the resolution and ui visibility.

UI/NativeApp.cpp

@@ -133,6 +133,7 @@ static UI::Theme ui_theme;
 ScreenManager *screenManager;
 std::string config_filename;
 
+bool g_graphicsIniting;
 bool g_graphicsInited;
 
 // Really need to clean this mess of globals up... but instead I add more :P
@@ -743,6 +744,7 @@ static void UIThemeInit() {
 void RenderOverlays(UIContext *dc, void *userdata);
 
 bool NativeInitGraphics(GraphicsContext *graphicsContext) {
+	g_graphicsIniting = true;
 	ILOG("NativeInitGraphics");
 	_assert_msg_(G3D, graphicsContext, "No graphics context!");
 
@@ -819,6 +821,7 @@ bool NativeInitGraphics(GraphicsContext *graphicsContext) {
 		gpu->DeviceRestore();
 
 	g_graphicsInited = true;
+	g_graphicsIniting = false;
 	ILOG("NativeInitGraphics completed");
 	return true;
 }
@@ -1240,7 +1243,7 @@ void NativeMessageReceived(const char *message, const char *value) {
 
 void NativeResized() {
 	// NativeResized can come from any thread so we just set a flag, then process it later.
-	if (g_graphicsInited) {
+	if (g_graphicsInited || g_graphicsIniting) {
 		resized = true;
 	} else {
 		ILOG("NativeResized ignored, not initialized");

android/src/org/ppsspp/ppsspp/NativeActivity.java

@@ -569,6 +569,11 @@ public void surfaceCreated(SurfaceHolder holder) {
 		// Note that desiredSize might be 0,0 here - but that's fine when calling setFixedSize! It means auto.
 		Log.d(TAG, "Setting fixed size " + desiredSize.x + " x " + desiredSize.y);
 		holder.setFixedSize(desiredSize.x, desiredSize.y);
+
+		// This may change it - but, since we're visible now, we can actually set this.
+		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
+			updateSystemUiVisibility();
+		}
 	}
 
 	@Override