erpsuiteios/common/customUI/commoneditor/CommonEditorRangeCell.m

//
//  CommonEditorRangeCell.m
//  RedAnt Mobile
//
//  Created by Jack on 2017/11/13.
//  Copyright © 2017年 Ray. All rights reserved.
//

#import "CommonEditorRangeCell.h"
#import "DatePickerViewController.h"


@interface CommonEditorRangeCell ()<UITextFieldDelegate>

@property (strong, nonatomic) IBOutlet UILabel *titleLabel;
@property (strong, nonatomic) IBOutlet UITextField *minField;
@property (strong, nonatomic) IBOutlet UITextField *maxField;

@end


@implementation CommonEditorRangeCell

- (void)awakeFromNib {
    [super awakeFromNib];
    // Initialization code
}

- (void)setSelected:(BOOL)selected animated:(BOOL)animated {
    [super setSelected:selected animated:animated];

    // Configure the view for the selected state
}

#pragma mark - Setter

- (void)setKeyboardType:(UIKeyboardType)keyboardType {
    self.minField.keyboardType = keyboardType;
    self.maxField.keyboardType = keyboardType;
}

- (void)setType:(CommonEditorRangeType)type {
    _type = type;
}

- (void)setMinValue:(NSString *)min maxValue:(NSString *)max {
    self.minField.text = min;
    self.maxField.text = max;
}

- (void)setTitle:(NSString *)title {
    self.titleLabel.text = title;
}

#pragma mark - TextField Delegate

- (BOOL)textFieldShouldReturn:(UITextField *)textField {
    [textField resignFirstResponder];
    return YES;
}

- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {
    return YES;
}

- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField {
    if (self.type == CommonEditorRangeTypeDate) {
        // 显示DatePicker
        [self showDatePickerWithField:textField];
        return NO;
    }
    return YES;
}

- (BOOL)textFieldShouldEndEditing:(UITextField *)textField {
    // 判断min是否大于max
    if (self.type == CommonEditorRangeTypeDate) {
        
    } else {
        NSString *max_str = self.maxField.text;
        NSString *min_str = self.minField.text;
        float min = 0;
        float max = MAXFLOAT;
        
        if (textField == self.minField) {
            min = [min_str floatValue];
            max_str = [max_str stringByReplacingOccurrencesOfString:@" " withString:@""];
            if (max_str != nil && max_str.length > 1) {
                max = [max_str floatValue];
            }
            
        } else if (textField == self.maxField) {
            max = [max_str floatValue];
            min_str = [min_str stringByReplacingOccurrencesOfString:@" " withString:@""];
            if (min_str != nil && min_str.length > 1) {
                min = [min_str floatValue];
            }
            
        }
        
        
        if (min > max) {
            [self showAlert];
            return NO;
        }
        if (self.delegate && [self.delegate respondsToSelector:@selector(commonEditorRangeCell:didChangeMinValue:maxValue:atIndexPath:)]) {
            [self.delegate commonEditorRangeCell:self didChangeMinValue:self.minField.text maxValue:self.maxField.text atIndexPath:self.indexPath];
        }
    }
    
    return YES;
}

#pragma mark - Private

- (UIViewController *)viewController {
    for (UIView* next = [self superview]; next; next = next.superview) {
        UIResponder *nextResponder = [next nextResponder];
        if ([nextResponder isKindOfClass:[UIViewController class]]) {
            return (UIViewController *)nextResponder;
        }
    }
    return nil;
}

- (void)showAlert {
    UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"Warning" message:@"minimum can't larger than maximum" preferredStyle:UIAlertControllerStyleAlert];
    UIAlertAction *action = [UIAlertAction actionWithTitle:@"OK" style:UIAlertActionStyleDestructive handler:nil];
    [alert addAction:action];
    [[self viewController] presentViewController:alert animated:YES completion:nil];
}

- (void)showDatePickerWithField:(UITextField *)field {
    
    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
    [dateFormatter setDefaultDate:[NSDate date]];
    [dateFormatter setDateFormat:@"MM/dd/YYYY"];
    
    DatePickerViewController* dpvc =[ [UIStoryboard storyboardWithName:@"CommonEditor" bundle:nil] instantiateViewControllerWithIdentifier:@"DatePickerViewController"];

    __weak UITextField *weakField = field;
    __weak typeof(self) weakSelf = self;
    
    dpvc.pickerMode = UIDatePickerModeDate;
    dpvc.date = [dateFormatter dateFromString:[dateFormatter stringFromDate:dateFormatter.defaultDate]];
    dpvc.formatter = dateFormatter;
    dpvc.blk_Set = ^(NSString *date) {
        NSString *min = @"";
        NSString *max = @"";
        // 判断min是否大于max
        if (weakField == weakSelf.minField) {
            min = date;
            max = [weakSelf.maxField.text stringByReplacingOccurrencesOfString:@" " withString:@""];
            if (max != nil && max.length > 1) {
                
                NSTimeInterval min_interval = [dateFormatter dateFromString:min].timeIntervalSince1970;
                NSTimeInterval max_interval = [dateFormatter dateFromString:max].timeIntervalSince1970;
                if (min_interval > max_interval) {
                    [weakSelf showAlert];
                    return ;
                }
            }
            
        } else if (weakField == weakSelf.maxField) {
            min = [weakSelf.minField.text stringByReplacingOccurrencesOfString:@" " withString:@""];
            max = date;
            if (min != nil && min.length > 1) {
                NSTimeInterval min_interval = [dateFormatter dateFromString:min].timeIntervalSince1970;
                NSTimeInterval max_interval = [dateFormatter dateFromString:max].timeIntervalSince1970;
                if (min_interval > max_interval) {
                    [weakSelf showAlert];
                    return ;
                }
            }
        }
        
        // max不小于min
        [weakField setText:date];
        if (weakSelf.delegate && [weakSelf.delegate respondsToSelector:@selector(commonEditorRangeCell:didChangeMinValue:maxValue:atIndexPath:)]) {
            [weakSelf.delegate commonEditorRangeCell:weakSelf didChangeMinValue:min maxValue:max atIndexPath:weakSelf.indexPath];
        }
    };
    if (field == self.minField) {
        dpvc.title = @"Select MinDate";
    } else if (field == self.maxField) {
        dpvc.title = @"Select MaxDate";
    }
    
    [[self viewController].navigationController pushViewController:dpvc animated:true];
}
- (IBAction)resetBtnClick:(UIButton *)sender {
    
    [self setMinValue:@"" maxValue:@""];
    
    if (self.delegate && [self.delegate respondsToSelector:@selector(commonEditorRangeCell:didChangeMinValue:maxValue:atIndexPath:)]) {
        [self.delegate commonEditorRangeCell:self didChangeMinValue:@"" maxValue:@"" atIndexPath:self.indexPath];
    }
}

@end