好用的城市选择器

AreaSelectViewController *ctrl = [[AreaSelectViewController alloc] init];
    [self.navigationController pushViewController:ctrl animated:YES];
    __weak AreaSelectViewController *_ctrl = ctrl;
    [ctrl setSelectedCityBlock:^(AreaModel * info) {
        //获取城市名字
        [self.cityName setTitle:info.areaName forState:UIControlStateNormal];
        
        [_ctrl.navigationController popViewControllerAnimated:YES];
    }];

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