Windows Phone 7 中的应用程序停用 - 由用户或系统引起。如何区分？
是否可以区分应用程序停用的原因？
当用户按下后退按钮或有来电\短信时，应用程序进入停用状态。我的问题是——如何辨别原因？防止作弊等很重要。
我有计时器 - 当有收入电话或短信时可以冻结它。如果按后退按钮，则不应保存它。
Is it possible to distinguish the cause of application deactivation?
Aplpication enters the deactivated state when users press back button or there is a call\SMS. My question is - how to distinguish the cause? It is important to prevent cheating etc.
I have time counter - it will be ok to freeze it when there's income call or SMS. In case of pressing back button it shouldn't be saved.
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尚未测试，但它可能会起作用：
OnNavigedTo并设置将标志设置为 false现在，当触发
Desactivated事件时，如果该标志设置为 true，那么您就知道用户已按下后退按钮。Haven't tested it but it may work:
OnNavigatedToand set the flag to falseNow, when the
Desactivatedevent is triggered, if the flag is set to true then you know the user has pressed the back button.如果这是为了防止游戏中作弊，我不会区分“返回”和“接到电话”，因为这会让用户感到困惑，并且会触发其他人通过让别人打电话给他们来作弊。
只需从游戏的最后一个保存点恢复或再次尝试该级别即可。
If this is to prevent cheating in a game I wouldn't make make a distinction between 'back' and 'getting a call' because to the user that would be confusing and it would trigger others to cheat by having someone call them.
Just resume from the game's last save point or offer to try the level again.