编辑:下面的这段代码正在工作。不幸的是,我无法在模拟器中测试这些关键事件,因此我犯了一个错误,并向手机发送了错误的apk。对于那个很抱歉。
我正在尝试以下给出的代码:http://developer.coronalabs.com/reference/index/events/key/eventkeyname
但是我无法检测到后退键事件。我尝试打印event.keyName,但是当我触摸android设备上的后退按钮时未检测到它。
你能帮我吗?谢谢。
这是我的代码:
-- Key listener
local function onKeyEvent( event )
local phase = event.phase
local keyName = event.keyName
eventTxt.text = "("..phase.." , " .. keyName ..")"
if(keyName=="back") then
local a=display.newText("hello",100,600,nil,35)
end
-- we handled the event, so return true.
-- for default behavior, return false.
return true
end
-- Add the key callback
Runtime:addEventListener( "key", onKeyEvent );
最佳答案
我的游戏的生产代码:
function onBackButtonPressedAtMap(e)
if (e.phase == "down" and e.keyName == "back") then
--Here the key was pressed
downPress = true
return true
else
if (e.phase == "up" and e.keyName == "back" and downPress) then
--Here the key was released, put your print("hello!") here.
storyboard.gotoScene( "mapscreen", "fade", 200 );
--The next line is to disable this event
--so the key is not trapped anymore on the "mapscreen"
--because I want the back key make the APP quit.
Runtime:removeEventListener( "key", onBackButtonPressedAtMap );
return true
end
end
return false;
end