hello_world.he

来自「维信SDK文档。源码要求为至少5个C或Java源码」· HE 代码 · 共 67 行

class hello_world
{
  //It's nice to store command ids to static constants
  const int CMD_BACK = 1;
  
  //MenuItems are displayed over phone's soft buttons
  //Usually to go back, ok, open options menu etc
  MenuItem BACK = new MenuItem(CMD_BACK, "Back");

  //WidSets framework will call createElement() per
  //each script-element it finds from views being
  //created by createView()
  
  Component createElement(String viewName,
                         String elementName,
                         Style style,
                         Object context)
  {
    //return simple label with style defined in widget.xml
    //in this case "text"
    if (elementName.equals("hello")) {
      //in order to get the label align in the middle of the
      //view you'd need to contain it inside a Flow which
      //you'd return here
      return new Label(style, "Hello World");
    }                  
    return null;
  }


  void startWidget()
  {
    //instantiate minimized view in startup
    setMinimizedView(createView("viewMini", getStyle("bg")));
  }


  Shell openWidget()
  {
    //instantiate maximized view when user opens this widget
    Flow view = createView("viewMaxi", getStyle("bg"));
    return new Shell(view);
  }

  
  MenuItem getSoftKey(Shell shell, Component focused, int key)
  {
    //return the key we want to display at position=SOFTKEY_BACK
    //this usually is the Right Soft Button (RSB), for other key
    //positions return null, as we don't want other keys
    if (key == SOFTKEY_BACK) {
      return BACK;
    }
    return null;
  }
  
  
  void actionPerformed(Shell shell, Component source, int action)
  {
    //when CMD_BACK event comes in, pop the current shell (this widget)
    if (action == CMD_BACK) {
      popShell(shell);
    }
  }
  
}