需求

App开发中经常会有日期选择（如生日、睡眠定时等）或者省市区选择等此类功能，通常UI中不会单独使用UI中的控件，而是在UIPickerView的基础上增加一个取消和确定按钮

特点

1、支持常见的选择型的数据格式
该控件集成了 yyyy-MM-dd、yyyy-MM、hh mm、省市级联、省市区级联、自定义数据源（2列）、自定义数据源（3列）等多种格式

2、即支持UITextField又支持事件触发机制

3、即支持XIB也支持纯代码

效果图

GitHub：XXPickerView

集成

首先将XXPickerView文件夹拖入到工程中

纯代码（选择任意一种模式）

#import "ViewController.h"
#import "XXTextField.h"

#define random(r,g,b,a) [UIColor colorWithRed:(r)/255.0 green:(g)/255.0 blue:(b)/255.0 alpha:(a)/255.0]
#define RandomColor random(arc4random_uniform(256),arc4random_uniform(256),arc4random_uniform(256))

@implementation ViewController

- (void)viewDidLoad {
 [super viewDidLoad];

 CGFloat x = 170;
 CGFloat width = 178;
 CGFloat height = 30;
 CGFloat margin = 50;

 // 模式一
 XXTextField *textField = [[XXTextField alloc] init];
 textField.frame = CGRectMake(x,28,width,height);
 textField.mode = XXPickerviewmodeDate;
 textField.backgroundColor = RandomColor;
 [self.view addSubview:textField];

 // 模式二
 XXTextField *textField2 = [[XXTextField alloc] init];
 textField2.frame = CGRectMake(x,textField.frame.origin.y + margin,height);
 textField2.mode = XXPickerviewmodeYearAndMonth;
 textField2.backgroundColor = RandomColor;
 [self.view addSubview:textField2];

 // 模式三
 XXTextField *textField3 = [[XXTextField alloc] init];
 textField3.frame = CGRectMake(x,textField2.frame.origin.y + margin,height);
 textField3.mode = XXPickerviewmodeHourAndMinute;
 textField3.backgroundColor = RandomColor;
 [self.view addSubview:textField3];

 // 模式四
 XXTextField *textField4 = [[XXTextField alloc] init];
 textField4.frame = CGRectMake(x,textField3.frame.origin.y + margin,height);
 textField4.mode = XXPickerviewmodeProvinceCity;
 textField4.backgroundColor = RandomColor;
 [self.view addSubview:textField4];

 // 模式五
 XXTextField *textField5 = [[XXTextField alloc] init];
 textField5.frame = CGRectMake(x,textField4.frame.origin.y + margin,height);
 textField5.mode = XXPickerviewmodeProvinceCityAreas;
 textField5.backgroundColor = RandomColor;
 [self.view addSubview:textField5];

 // 模式六
 XXTextField *textField6 = [[XXTextField alloc] init];
 textField6.frame = CGRectMake(x,textField5.frame.origin.y + margin,height);
 textField6.mode = XXPickerviewmodeDataSourceFor2Column;
 textField6.dataSource = [dataSourceFor2Column mutableCopy];
 textField6.backgroundColor = RandomColor;
 [self.view addSubview:textField6];

 // 模式七
 XXTextField *textField7 = [[XXTextField alloc] init];
 textField7.frame = CGRectMake(x,textField6.frame.origin.y + margin,height);;
 textField7.mode = XXPickerviewmodeDataSourceFor3Column;
 textField7.dataSource = [dataSourceFor3Column mutableCopy];
 textField7.backgroundColor = RandomColor;
 [self.view addSubview:textField7];
 }
@end

XIB方式

1、绑定自定义类

2、拖线并设置模式

@interface ViewController ()
@property (weak,nonatomic) IBOutlet XXTextField *textField;
@end

@implementation ViewController

- (void)viewDidLoad {
 [super viewDidLoad];
 _textField.mode = XXPickerviewmodeDate;
}

@end

事件方式

#import "ViewController.h"
#import "XXInputView.h"

@interface ViewController ()
@property (weak,nonatomic) XXInputView *inputView;
@end

@implementation ViewController

- (void)viewDidLoad {
 [super viewDidLoad];
}

- (IBAction)showClicked:(id)sender {
 [self.inputView show];
}

- (XXInputView *)inputView {
 if (_inputView == nil) {
 XXInputView *inputView = [[XXInputView alloc] initWithFrame:CGRectMake(0,[UIScreen mainScreen].bounds.size.height,[UIScreen mainScreen].bounds.size.width,200) mode:XXPickerviewmodeDate dataSource:nil];
 inputView.hideSeparator = YES;
 inputView.completeBlock = ^(NSString *dateString){
 NSLog(@"selected data : %@",dateString);
 };

 [self.view addSubview:inputView];

 self.inputView = inputView;
 }

 return _inputView;
}

@end

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