iOS uses Uipickview to write time selection effect code

First effect chart

Because Xcode in the uipickdate on four modes, there is no only the pattern of years, so when there is a need to use uipickdate feel a bit of a pit, so here to give you the Uipickview use method

This is the initialization Uipickview.

The code is as follows	Copy Code
Self.datepick = [[Uipickerview alloc]initwithframe:cgrectmake (kscreenwidth-90,250)]; Self.datePick.delegate =self; Self.datePick.dataSource = self; [Selectdateview AddSubview:self.datPick];

Then you can implement its proxy method.

The code is as follows	Copy Code
-(Nsinteger) Numberofcomponentsinpickerview: (Uipickerview *) pickerview{ } -(Nsinteger) Pickerview: (Uipickerview *) Pickerview numberofrowsincomponent: (Nsinteger) component{ } -(NSString *) Pickerview: (Uipickerview *) Pickerview Titleforrow: (nsinteger) Row forcomponent: (Nsinteger) component{ }

This will be able to write this effect!