@property (nonatomic, strong) PSCityPickerView *cityPicker;


- (PSCityPickerView *)cityPicker
{
    if (!_cityPicker)
    {
        _cityPicker = [[PSCityPickerView alloc] init];
        _cityPicker.cityPickerDelegate = self;
    }
    return _cityPicker;
}

self.textField.inputView = self.cityPicker;

#pragma mark - PSCityPickerViewDelegate
- (void)cityPickerView:(PSCityPickerView *)picker
    finishPickProvince:(NSString *)province
                  city:(NSString *)city
              district:(NSString *)district
{
    [self.textField setText:[NSString stringWithFormat:@"%@ %@ %@",province,city,district]];
}