android: fix directory listing, keyboard show/hide and read chars

engine/app.h

@@ -66,6 +66,9 @@ public:
     
 #if defined(__IOS__) && defined(__OBJC__)
     GameViewController* ios_view;
+#endif
+#ifdef __ANDROID__
+    struct android_app* and_app;
 #endif
     void showKeyboard();
     void hideKeyboard();

engine/app_events.cpp

@@ -1,6 +1,11 @@
 #include "pch.h"
 #include "app.h"
 
+#ifdef __ANDROID__
+void displayKeyboard(android_app* mApplication, bool pShow);
+#endif
+
+
 using namespace ui;
 
 void App::resize(float w, float h)
@@ -14,17 +19,23 @@ void App::resize(float w, float h)
 
 void App::showKeyboard()
 {
+    LOG("show keyboard");
     redraw = true;
 #ifdef __IOS__
     [ios_view becomeFirstResponder];
+#elif __ANDROID__
+    displayKeyboard(and_app, true);
 #endif
 }
 
 void App::hideKeyboard()
 {
+    LOG("hide keyboard");
     redraw = true;
 #ifdef __IOS__
     [ios_view resignFirstResponder];
+#elif __ANDROID__
+    displayKeyboard(and_app, false);
 #endif
 }
 

engine/asset.cpp

@@ -7,6 +7,7 @@
 #endif
 
 #ifdef __ANDROID__
+#include <dirent.h>
 AAssetManager* Asset::m_am;
 #endif
 
@@ -49,7 +50,19 @@ std::vector<std::string> Asset::list_files(std::string folder, bool is_asset, co
     }
     else
     {
+        DIR *dp;
+        struct dirent *ep;
+        dp = opendir(folder.c_str());
 
+        if (dp != NULL)
+        {
+            while ((ep = readdir(dp)))
+                if (ep->d_type != DT_DIR)
+                    names.push_back(ep->d_name);
+            closedir(dp);
+        }
+        else
+        LOG("Couldn't open the directory: %s", folder.c_str());
     }
 #else
     std::string abs_path = folder;

engine/node_panel_brush.cpp

@@ -44,7 +44,7 @@ void NodePanelBrush::init()
 {
     init_template("tpl-panel-brushes");
     //m_layers_container = find<NodeBorder>("layers-container");
-    static auto icons = Asset::list_files("data/Icons/", true, ".*\\.png$");
+    static auto icons = Asset::list_files("data/Icons", true, ".*\\.png$");
 
     if ((m_container = find<NodeBorder>("brushes")))
     {