fix recurseve mutex on Android

android/src/main/cpp/main.cpp

@@ -16,6 +16,7 @@
  */
 
 //BEGIN_INCLUDE(all)
+#include <mutex>
 #include <initializer_list>
 #include <memory>
 #include <jni.h>
@@ -51,6 +52,7 @@ typedef void (*fnDebugMessageCallback)(GLDEBUGPROC callback, const void* userPar
 
 EGLDisplay g_display = EGL_NO_DISPLAY;
 EGLContext g_context = EGL_NO_CONTEXT;
+std::recursive_mutex mutex;
 
 jint JNI_OnLoad(JavaVM* vm, void* /*reserved*/)
 {
@@ -124,7 +126,7 @@ int GetUnicodeChar(struct android_app* app, int eventType, int keyCode, int meta
 
 void android_async_lock(struct engine* engine)
 {
-    pthread_mutex_lock(&engine->app->mutex);
+    mutex.lock();
     eglMakeCurrent(engine->display, engine->surface, engine->surface, engine->context);
 }
 
@@ -136,7 +138,7 @@ void android_async_swap(struct engine* engine)
 void android_async_unlock(struct engine* engine)
 {
     eglMakeCurrent(engine->display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
-    pthread_mutex_unlock(&engine->app->mutex);
+    mutex.unlock();
 }
 
 struct locker

src/app_layout.cpp

@@ -388,6 +388,7 @@ void App::init_menu_file()
                 b->on_click = [this](Node*) {
                     App::I.pick_image([this](std::string path){
                         Image img;
+                        async_start();
                         img.load_file(path);
                         if (img.width == img.height / 6 || img.width == img.height * 2)
                         {
@@ -400,6 +401,8 @@ void App::init_menu_file()
                             m->m_source_image = std::move(img);
                             Canvas::set_mode(Canvas::kCanvasMode::Transform);
                         }
+                        async_redraw();
+                        async_end();
                     });
                     popup->mouse_release();
                     popup->destroy();