iOS UIDatePicker设置为中文的方法

UIDatePicker *datePicker = [[UIDatePicker alloc] initWithFrame:CGRectMake(0, 20, 200, 30)];

datePicker.datePickerMode = UIDatePickerModeDate;//模式选择

NSLocale *locale = [[NSLocale alloc] initWithLocaleIdentifier:@"zh_CN"];//设置为中文

datePicker.locale = locale;

NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];//设置输出的格式

[dateFormatter setDateFormat:@"yyyy-MM-dd"];