The STL standard d开发者_如何学Goefines that when an erase occurs on containers such as std::deque, std::list etc iterators are invalidated.
I want my app to be invalidated 1 year after the first installation. I am using a webse开发者_如何学Pythonrvice for storing device id for apns and thought about storing the first install date with it.
I have an application that creates 3D motion on a TPaintBox Canvas using native Delphi code.In the old code I rendered the 3D image to a temporary TBitmap on a Timer event.In the TPaintBox OnPaint() e
If I have an NSTimer that starts in viewdidload, where is the proper 开发者_运维技巧place to invalidate it when leaving that view?Is it also necessary to release it as well?If you create a timer with
I learned today about the term invalidation in co开发者_运维问答ntext of C++ containers. Can anyone explain what it means?
I\'ve got an iPhone app with an NSTimer called pressTimer that goes off every time someone touches this button. The problem is they touch the button a lot, and I want the timer to stop when they lift
I have a custom view that fills my entire screen. (A piano keyboard) When a user touches the key, it causes invalidate() to be called and the whole keyboard gets redrawn to show the new state with a t
The following method does not apply the wpf changes (background = red) until the 2nd method (DoWork) exits:
I have a PreferenceActivity with a bunch of (Sub)PreferenceScreens. Each such (Sub)PreferenceScreen represents an account and has the account-username as its title.
I have 3 data graphs that are painted via the their paint events. When I have data that I need to insert into the graph I call the controls invalidate() command.
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