Reload UIPicker

Question

Refresh UIPicker In Xcode using swift?

Mukil Vendhan · Answer

You will have to implement the datasource and the delegate. once you press a button set an array pointer to the appropriate array. than call [thePicker reloadAllComponents]; -(IBAction) usButtonPressed:(id)sender{ self.inputArray = self.usArray; [self.thePicker reloadAllComponents]; } -(IBAction) mexicoButtonPressed:(id)sender{ self.inputArray = self.mexicoArray; [self.thePicker reloadAllComponents]; } the datasource methods: - (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView { return 1; } - (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component { return [self.inputArray count]; }