update

components/dwin/var_icon.cpp

@@ -11,6 +11,11 @@ static uint32_t s_VarIconNum = 0;
 bool VarIcon::flushcfg() { return m_dwin_screen->write_varspace16_muti(m_descript_add, (uint16_t *)&m_descript, sizeof(m_descript) / 2, 100); }
 bool VarIcon::readcfg() { return m_dwin_screen->read_varspace16_muti(m_descript_add, (uint16_t *)&m_descript, sizeof(m_descript) / 2, 100); }
 
+bool VarIcon::init(DwinScreen *dwin_screen) {
+  m_dwin_screen = dwin_screen;
+  return init(dwin_screen, dwin_screen->alloc_one_var_icon());
+}
+
 bool VarIcon::init(DwinScreen *dwin_screen, uint16_t descript_add) {
   //
   m_dwin_screen  = dwin_screen;

components/dwin/var_icon.hpp

@@ -39,6 +39,7 @@ class VarIcon {
 
  public:
   bool init(DwinScreen *dwin_screen, uint16_t descript_add);
+  bool init(DwinScreen *dwin_screen);
   void initcfg(uint16_t valpointerAdd, uint16_t initval, uint16_t posx, uint16_t posy, uint16_t iconlib, uint16_t iconmin, uint16_t iconmax);
 
   /**