头文件：

@interface YearMonthPikerView : UIView

@property (nonatomic,copy) void(^cancelBlock)();

@property (nonatomic,copy) void(^sureBlock)(NSString*,NSString*);

@end

实现文件：

#import "YearMonthPikerView.h"

static const int loop = ;

@interface YearMonthPikerView()

@property (weak, nonatomic) IBOutlet UIButton *cancelBtn;

@property (weak, nonatomic) IBOutlet UIButton *sureBtn;

@property (weak, nonatomic) IBOutlet UIPickerView *ymPikerView;

@property (nonatomic,strong) NSArray *monthsArr; //月份的数组

@property (nonatomic,strong) NSArray *yearsArr; //年份的数组

@property (nonatomic,strong) NSDateFormatter *formatter;

@property (nonatomic,strong) NSString *currentYear;

@property (nonatomic,strong) NSString *currentMonth;

@property (nonatomic,assign) BOOL isCurrentYear;

@property (nonatomic,strong) NSString *selectYear;

@property (nonatomic,strong) NSString *selectMonth;

@end

@implementation YearMonthPikerView

• (void)awakeFromNib{
  [super awakeFromNib];

  self.ymPikerView.delegate = self;
  self.ymPikerView.dataSource = self;

  //初始化
  self.monthsArr = @[@"",@"",@"",@"",@"",@"",@"",@"",@"",@"",@"",@""];

  [self.formatter setLocale:[[NSLocale alloc] initWithLocaleIdentifier:@"zh_CN"] ];
  NSDate *currentDate = [NSDate date];

  [self.formatter setDateFormat:@"MM"];
  self.currentMonth = [self.formatter stringFromDate:currentDate];
  self.selectMonth = self.monthsArr[(self.currentMonth.integerValue-)];

  [self.formatter setDateFormat:@"yyyy"];
  self.currentYear = [self.formatter stringFromDate:currentDate];
  self.selectYear = self.currentYear;

  NSMutableArray *yearsArr = [NSMutableArray array];
  [yearsArr addObject:self.currentYear];

  int nowYear = [self.currentYear intValue];
  for (int i=; i<loop; i++) {
  nowYear = nowYear - ;
  NSString *nowYearStr = [NSString stringWithFormat:@"%d",nowYear];
  [yearsArr insertObject:nowYearStr atIndex:];
  }
  self.yearsArr = yearsArr;
  self.isCurrentYear = YES;
  [self.ymPikerView selectRow:(self.yearsArr.count-) inComponent: animated:YES];
  [self.ymPikerView selectRow:(self.currentMonth.intValue-) inComponent: animated:YES];

}

• (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView{
  return 2.0;
  }

• (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component{
  if (component==) {
  return self.yearsArr.count;
  }else if (component==){
  if (self.isCurrentYear) {
  return self.currentMonth.integerValue;
  }else{
  return self.monthsArr.count;
  }
  }else{
  return ;
  }
  }

• (NSString*)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component{
  if (component==) {
  NSString *year = self.yearsArr[row];
  year = [year stringByAppendingString:@"年"];
  return year;
  }else if (component==){
  NSString *month = self.monthsArr[row];
  month = [month stringByAppendingString:@"月"];
  return month;
  }else{
  return nil;
  }
  }

• (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component{
  if (component== && row==self.yearsArr.count-) {
  self.isCurrentYear = YES;
  [self.ymPikerView reloadComponent:];

  self.selectYear = self.yearsArr\[row\];  

  }else if (component==){
  self.isCurrentYear = NO;
  [self.ymPikerView reloadComponent:];

  self.selectYear = self.yearsArr\[row\];  

  }else if (component==){
  self.selectMonth = self.monthsArr[row];
  }
  }

• (IBAction)cancelBtnClick:(UIButton *)sender {
  if (self.cancelBlock) {
  self.cancelBlock();
  }
  }

• (IBAction)sureBtnClick:(UIButton *)sender {
  if (self.sureBlock) {
  self.sureBlock(self.selectYear, self.selectMonth);
  }
  }

#pragma mark - 懒加载

• (NSDateFormatter*)formatter{
  if (_formatter==nil) {
  _formatter = [[NSDateFormatter alloc]init];
  }
  return _formatter;
  }

@end

效果如下图：

Demo地址如下：https://github.com/LuPing-Kuang/iOS-YearMonthPickerView