I use [NSDate date] to get user's system time, but if the user changed system date/time, I'll get a error date. How can I solve this problem?
ps : [NSDate date] is the only way to get the date from user's iPhone, and user has no network.
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SwiftArchitect
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ZeroChow
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I think there is no way, if your app doesn't connect and sync datetime with your server – Cong Tran Dec 25 '15 at 08:56
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3Checkout this answer http://stackoverflow.com/questions/21588243/can-i-prevent-an-ios-user-from-changing-the-date-and-time Instead you locals to get the right date format. – Rashwan L Dec 25 '15 at 08:59
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thanks. That's right I want answers – ZeroChow Dec 28 '15 at 04:02
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As an auxiliary measure, you can get true time from server when network is accessible. That is, when app has access to network, don`t trust in local system time. However, that is just merely an assistant measure. It can not be sure that network is always connected. In my opinion, in summary, there is no absolute way to prevent system data changing, but we can use server time to weaken its negative effect.
ZilinWeng
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thanks. I thought of another solution, if can be solved with timer？I from a timer to get time without ` [NSDate date] ` get time – ZeroChow Dec 28 '15 at 03:49