Question

我正在使用KeyBoard对话框创建用户条目。我保留了两个按钮“OK”和“CANCEL”。但是在使用buttonSelected时，它使用observeField调用该按钮。现在，任何人都可以告诉我如何使用buttonSelected索引获取操作，同时单击一个按钮为OK并取消

sub init()
  m.top.backgroundURI = "pkg:/images/rsgde_bg_hd.jpg"

  example = m.top.findNode("instructLabel")

  examplerect = example.boundingRect()
  centerx = (1280 - examplerect.width) / 2
  centery = (720 - examplerect.height) / 2
  example.translation = [ centerx, centery ]

  m.top.setFocus(true)
end sub

sub showdialog()
  keyboarddialog = createObject("roSGNode", "KeyboardDialog")
  keyboarddialog.backgroundUri = "pkg:/images/rsgde_dlg_bg_hd.9.png"
  keyboarddialog.title = "Example Keyboard Dialog"

  keyboarddialog.buttons=["OK","CANCEL"]
  keyboarddialog.optionsDialog=true

  m.top.dialog = keyboarddialog
  print "hello"
 KeyboardDialog.observeField("buttonSelected","onKeyPress")
' KeyboardDialog.observeField("buttonSelected","onKeyPressCancel")
 print "world"
end sub




function onKeyPress()
    print "m.value:::>>"m.top.dialog.text
end Function
function onKeyPressCancel()

    print "Screen should close"
end Function

function onKeyEvent(key as String, press as Boolean) as Boolean
  if press then
    if key = "OK"
      showdialog()

      return true
    end if

    end if


  return false
end function



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Answer 1

在此处创建一个函数和对话框。在对话框中，写观察字段的用法：第一个是“字段名称”，另一个是“函数名称”。 m.top.dialog.observeField("buttonSelected","onVerifyURL")。

sub onVerifyURL()

 if m.top.dialog.buttonSelected = 0

       print "ok button pressed" 'O is called first
       'function call for OK

 else if m.top.dialog.buttonSelected = 1  

       print "cancel button pressed" '1 is called first
       'm.top.dialog.visible = false  
       'm.top.dialog.close = true

 else
       print "nothing press" ' this is not required for code just write for an understanding

 end if

end sub

Answer 2

您是否检查了事件buttonSelected内的内容; - ）

Answer 3

使用m.top.dialog.buttonSelected将返回索引值。

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3 个答案: