SolarBT_iOS/SolarBT/Classes/Global/Utils/CLDataPlist.m

//
//  CLDataPlist.m
//  SolarBT
//
//  Created by weclouds on 2019/4/24.
//  Copyright © 2019 weclouds. All rights reserved.
//

#import "CLDataPlist.h"

static CLDataPlist *_plistInfo;
@implementation CLDataPlist

+(id)sharePlist{
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        if (!_plistInfo) {
            _plistInfo = [[CLDataPlist alloc ]init ];
        }
    });
    return _plistInfo;
}
-(void)writeToPlistWithBlename:(NSString *)blename{
    //将用户信息保存在可变数组里边
    NSMutableArray *dataArr= [[NSMutableArray alloc]initWithObjects:blename, nil];
    
    [self createDataPlist:dataArr key:blename];
}
 
    

    
    

    //创建plist写入操作
    //在保存之前遍历一下plist，如果存在就不进行写入操作，这样可以避免保存相同的数据
    /**
     @param dataArr       用户数组
     @param key             关键字，这里用用户名来做关键字
     */
-(void)createDataPlist:(NSMutableArray *)dataArr key:(NSString *)key{
    BOOL isOrSave = YES;
    //沙盒路径
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask ,YES );
    NSString *documentDicectory = [paths objectAtIndex:0];
    //plist路径
    NSString *plistPath = [documentDicectory stringByAppendingPathComponent:@"userInfo.plist"];
    NSFileManager *fileManager = [[NSFileManager alloc]init];
    
    NSMutableDictionary *userInfoDict = [NSMutableDictionary dictionaryWithContentsOfFile:plistPath];
    if ([userInfoDict count] > 1) {
        //遍历key 如果该用户存在就不进行添加操作
        //否则，就进行添加操作
        for (id obj in [userInfoDict allKeys]) {
            NSString *objString = obj;
            if ([[dataArr objectAtIndex:0] isEqualToString:objString]) {
                //如果存在,isOrSave设置为0
                isOrSave =NO;
                NSLog(@"该用户已存在");
                break;
            }
        }
    }
    
    
    if (isOrSave == YES) {
        //下边这几个步骤  通过文件管理器，来不判断plist  是否存在，如果不存在， 我们就通过[fileManager createFile:plistPath contents:nil attributes:nil]穿件一个plist 并检测文件是否创建成功 ，如果存在plist 我们就在userInfoDict 可变字典里边保存数据  这样可以避免数据被覆盖
        if (![fileManager fileExistsAtPath:plistPath]) {
            if (![fileManager createFileAtPath:plistPath contents:nil attributes:nil]) {
                NSLog(@"create file error - 创建文件失败");
            } else {
                NSDictionary *userDict = [NSDictionary dictionaryWithObjectsAndKeys:dataArr,key, nil];
                [userDict writeToFile:plistPath atomically:YES];
            }
        } else {
            NSMutableDictionary *userInfodictionary  =[[NSMutableDictionary alloc]initWithContentsOfFile:plistPath];
            [userInfodictionary setObject:dataArr forKey:key];
            [userInfodictionary writeToFile:plistPath atomically:YES];
        }
    } else {
        NSMutableDictionary *peripheralDcit = [[NSMutableDictionary alloc]    initWithContentsOfFile:plistPath];
        
        [peripheralDcit setObject:dataArr forKey:key];
        [peripheralDcit writeToFile:plistPath atomically:YES];
        
    }
}
-(NSMutableDictionary *)readDataFromPlist{
    
    //沙盒路径
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask ,YES );
    NSString *documentDicectory = [paths objectAtIndex:0];
    //plist路径
    NSString *plistPath = [documentDicectory stringByAppendingPathComponent:@"userInfo.plist"];
    NSLog(@"%@",plistPath);
    NSFileManager *fileManager = [NSFileManager defaultManager];
    //更改到操作目录
    [fileManager changeCurrentDirectoryPath:[documentDicectory stringByExpandingTildeInPath]];
    
    NSMutableDictionary *userInfoDict = [[NSMutableDictionary alloc]initWithContentsOfFile:plistPath];
    
    NSLog(@"保存的数据---%@",userInfoDict);
    return userInfoDict;
}
    
-(void)deleleteDatePlist{
    //创建文件管理器
    NSFileManager *fileManager = [NSFileManager defaultManager];
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *document = [paths objectAtIndex:0];
    //更改到操作目录
    [fileManager changeCurrentDirectoryPath:[document stringByExpandingTildeInPath]];
    NSString *plistPath = [document stringByAppendingPathComponent:@"userInfo.plist"];
    
    //如果文件路径出在的话
    BOOL bRet = [fileManager fileExistsAtPath:plistPath];
    if (bRet) {
        NSLog(@"清空了plist");
        NSError *error ;
        [fileManager removeItemAtPath:plistPath error:&error];
    }
    
}
    
-(void)removeDataWithKey:(NSString *)key{
    //创建文件管理器
    NSFileManager *fileManager = [NSFileManager defaultManager];
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *document = [paths objectAtIndex:0];
    //更改到操作目录
    [fileManager changeCurrentDirectoryPath:[document stringByExpandingTildeInPath]];
    NSString *plistPath = [document stringByAppendingPathComponent:@"userInfo.plist"];
    
    //读取全部内容
    NSMutableDictionary *userInfo =[[NSMutableDictionary alloc]initWithContentsOfFile:plistPath];
    //从字典里边删除对应的key
    [userInfo removeObjectForKey:key];
    //删除后重新写入
    [userInfo writeToFile:plistPath atomically:YES];
}
@end