iOS 对象信息保存、转化JSON、JSON生成对象的模型方案记录

目标：

将对象的一些信息提取保存起来，然后转化成JSON，再上传到服务器，或其他保存本地的用途。

从服务器接收或从本地读取，然后通过JSON的信息生成指定的对象。

方案代码：

//
//  KeepLabelInfoModel.h
//  TestViewXIB
//
//  Created by yococo on 15/9/29.
//  Copyright (c) 2015年 yococo. All rights reserved.
//

#import 

#import 

@interface KeepLabelInfoModel : NSObject

/***************************/
//记录当前所保存的数据信息
@property(nonatomic,strong,readonly) NSMutableArray* infoArray;


/***************************/
//记录指定对象，内部自行提取需要保存的数据信息
- (void) addObject:(UILabel*)anObject;


/***************************/
//将指定的数据信息数组转换成JSON 字符串格式
@property(nonatomic,readonly) NSString* JSONString;

//将指定的数据信息数组转换成JSON 数据格式
@property(nonatomic,readonly) NSData* JSONData;


/***************************/
//内部处理间的错误情况
@property(nonatomic,strong) NSError* error;


/***************************/
//通过获取指定数据信息生成指定对象
- (void) modelObjectsWithJSONString:(NSString*)jsonString;

- (void) modelObjectsWithJSONData:(NSData*)jsonData;

//记录所生成的对象
@property(nonatomic,strong,readonly) NSArray* modelObjects;


@end

//
//  infoLabelInfoModel.m
//  TestViewXIB
//
//  Created by yococo on 15/9/29.
//  Copyright (c) 2015年 yococo. All rights reserved.
//

#import "KeepLabelInfoModel.h"

@implementation KeepLabelInfoModel

- (void) dealloc
{
    _infoArray = nil;
    _error = nil;
    _modelObjects = nil;
}

- (void) addObject:(UILabel*)anObject
{
    if (_infoArray == nil) {
        _infoArray = [NSMutableArray array];
    }
    
    if (anObject == nil || [anObject isKindOfClass:[UILabel class]] == NO) {
        return;
    }
    
    NSMutableDictionary* tempDictionary = [NSMutableDictionary dictionary];
    [tempDictionary setObject:anObject.text forKey:@"text"];
    [tempDictionary setObject:NSStringFromCGRect(anObject.frame) forKey:@"frame"];
    [tempDictionary setObject:NSStringFromCGAffineTransform(anObject.transform) forKey:@"transform"];
    [tempDictionary setObject:[self getHSBAStringByColor:anObject.textColor] forKey:@"textColor"];
    [_infoArray addObject:tempDictionary];
    
}

- (NSString*) JSONString
{
    if (_infoArray == nil) {
        return nil;
    }
    
    NSError* tempError = nil;
    NSData* jsonData = [NSJSONSerialization dataWithJSONObject:_infoArray options:NSJSONWritingPrettyPrinted error:&tempError];
    
    if (tempError == nil) {
        NSString* jsonString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
        return jsonString;
    }
    
    self.error = tempError;
    
    return nil;
}


- (NSData*) JSONData
{
    if (_infoArray == nil) {
        return nil;
    }
    
    NSError* tempError = nil;
    NSData* jsonData = [NSJSONSerialization dataWithJSONObject:_infoArray options:NSJSONWritingPrettyPrinted error:&tempError];
    
    if (tempError == nil) {
        return jsonData;
    }
    
    self.error = tempError;
    
    return nil;
}



- (void) modelObjectsWithJSONData:(NSData *)jsonData
{
    if (jsonData == nil) {
        return;
    }
    
    NSError* tempError = nil;
    
    NSArray* tempArr = [NSJSONSerialization JSONObjectWithData:jsonData options:NSJSONReadingMutableContainers error:&tempError];
    
    if (tempError) {
        self.error = tempError;
        return;
    }
    
    if (tempArr == nil || [tempArr isKindOfClass:[NSArray class]] == NO) {
        return;
    }
    
    NSMutableArray* tempArray = [NSMutableArray array];
    
    for (NSDictionary* tempDictionary in tempArr) {
        if ([tempDictionary isKindOfClass:[NSDictionary class]]) {
            UILabel* tempLabel = [[UILabel alloc] init];
            
            NSString* tempText = tempDictionary[@"text"];
            if (tempText && [tempText isKindOfClass:[NSString class]]) {
                tempLabel.text = tempText;
            }
            
            NSString* tempFrame = tempDictionary[@"frame"];
            if (tempFrame && [tempFrame isKindOfClass:[NSString class]]) {
                tempLabel.frame = CGRectFromString(tempFrame);
            }
            
            NSString* tempTransform = tempDictionary[@"transform"];
            if (tempTransform && [tempTransform isKindOfClass:[NSString class]]) {
                tempLabel.transform = CGAffineTransformFromString(tempTransform);
            }
            
            NSString* tempTextColor = tempDictionary[@"textColor"];
            if (tempTextColor && [tempTextColor isKindOfClass:[NSString class]]) {
                tempLabel.textColor = [self colorWithHSBAString:tempTextColor];
            }
            
            [tempArray addObject:tempLabel];
        }
    }
    
    _modelObjects = tempArray;
}



- (void) modelObjectsWithJSONString:(NSString*)jsonString
{
    if (jsonString == nil) {
        return;
    }
    NSData *jsonData = [jsonString dataUsingEncoding:NSUTF8StringEncoding];
    [self modelObjectsWithJSONData:jsonData];
}







- (NSString *)getHSBAStringByColor:(UIColor *)originColor {
    NSDictionary *hsbaDict = [self getHSBAValueByColor:originColor];
    return [NSString stringWithFormat:@"(%0.2f, %0.2f, %0.2f, %0.2f)",
            [hsbaDict[@"H"] floatValue],[hsbaDict[@"S"] floatValue],[hsbaDict[@"B"] floatValue],[hsbaDict[@"A"] floatValue]];
}

- (NSDictionary *)getHSBAValueByColor:(UIColor *)originColor
{
    CGFloat h=0,s=0,b=0,a=0;
    if ([originColor respondsToSelector:@selector(getHue:saturation:brightness:alpha:)]) {
        [originColor getHue:&h saturation:&s brightness:&b alpha:&a];
    }
    return @{@"H":@(h),@"S":@(s),@"B":@(b),@"A":@(a)};
}

- (UIColor *) colorWithHSBAString:(NSString*)aColorString
{
    if (aColorString == nil) {
        return nil;
    }
    
    NSString* tempString = [aColorString stringByReplacingOccurrencesOfString:@"(" withString:@""];
    tempString = [aColorString stringByReplacingOccurrencesOfString:@")" withString:@""];
    NSArray* tempArray = [tempString componentsSeparatedByString:@","];
    if (tempArray && tempArray.count == 4) {
        return [UIColor colorWithHue:[tempArray[0] floatValue] saturation:[tempArray[1] floatValue] brightness:[tempArray[2] floatValue] alpha:[tempArray[3] floatValue]];
    }
    return nil;
}

@end

通过 Button 以及 Storyboard 上的Label进行测试

1.获取 Label 的信息

    KeepLabelInfoModel* tempModel = [[KeepLabelInfoModel alloc] init];
    
    for (UILabel* subview in self.view.subviews) {
        if ([subview isKindOfClass:[UILabel class]]) {
            
            [tempModel addObject:subview];
        }
    }
    NSLog(@"%@",tempModel.JSONString);

2.删除 Storyboard 上的 Label

    for (UILabel* subview in self.view.subviews) {
        if ([subview isKindOfClass:[UILabel class]]) {
            [subview removeFromSuperview];
        }
    }

3.校验生成对象情况

    NSString* tempString = @"["
    "{"
    "\"textColor\" : \"(0.00, 0.00, 0.67, 1.00)\","
    "\"frame\" : \"{{104, 380}, {134, 35}}\","
    "\"text\" : \"123\","
    "\"transform\" : \"[1, 0, 0, 1, 0, 0]\""
    "},"
    "{"
    "\"textColor\" : \"(0.00, 0.96, 1.00, 1.00)\","
    "\"frame\" : \"{{273, 276}, {29, 21}}\","
    "\"text\" : \"234\","
    "\"transform\" : \"[1, 0, 0, 1, 0, 0]\""
    "},"
    "{"
    "\"textColor\" : \"(0.00, 0.00, 1.00, 1.00)\","
    "\"frame\" : \"{{150, 498}, {29, 21}}\","
    "\"text\" : \"567\","
    "\"transform\" : \"[1, 0, 0, 1, 0, 0]\""
    "},"
    "{"
    "\"textColor\" : \"(0.00, 0.00, 0.00, 1.00)\","
    "\"frame\" : \"{{217, 405}, {29, 21}}\","
    "\"text\" : \"346\","
    "\"transform\" : \"[1, 0, 0, 1, 0, 0]\""
    "},"
    "{"
    "\"textColor\" : \"(0.18, 0.74, 1.00, 1.00)\","
    "\"frame\" : \"{{273, 498}, {29, 21}}\","
    "\"text\" : \"498\","
    "\"transform\" : \"[1, 0, 0, 1, 0, 0]\""
    "},"
    "]";
    
    
    KeepLabelInfoModel* tempModel = [[KeepLabelInfoModel alloc] init];
    
    [tempModel modelObjectsWithJSONString:tempString];
    
    for (UIView* subview in tempModel.modelObjects) {
        if ([subview isKindOfClass:[UIView class]]) {
            [self.view addSubview:subview];
        }
    }