Question

问 UIDatePicker滚动的方法叫什么 急！！！

我页面 上一半 有个textFiled，下一半 有个UIDatePicker，显示的是小时，分钟。我想滚动小时，分钟的时候上面textFiled里面的数据跟着时时变动

Answer 1

UIKIT_EXTERN_CLASS @interface UIDatePicker : UIControl { @private UIPickerView *_pickerView;}@endUIDataPicker 的supper 是 UIPickerView 所以支持 UIPickViewDelegate UIPickVuewDataSources @protocol UIPickerViewDataSource@required// returns the number of 'columns' to display.- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView;// returns the # of rows in each component..- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component;@end@protocol UIPickerViewDelegate- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component;@end