歸檔和解檔配合NSFile存儲數據
NSString *Name = @"yc";
//第一個常量NSDocumentDirectory表示正在查找沙盒Document目錄的路徑（如果參數為NSCachesDirectory則表示沙盒Cache目錄），
//第二個常量NSUserDomainMask表明我們希望將搜索限制在應用的沙盒內；
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *pathDirectory = [paths lastObject];
NSLog(@"Documents目錄路徑=%@",pathDirectory);
//創建文件stringByAppendingPathComponent:路徑拼接
NSString *filePath = [pathDirectory stringByAppendingPathComponent:@"wyc"];
NSLog(@"filePath===%@",filePath);
NSFileManager *fileManager = [NSFileManager defaultManager];
if ([fileManager fileExistsAtPath:filePath]){
}else{
NSError *error ;
BOOL isSuccess = [fileManager createDirectoryAtPath:filePath withIntermediateDirectories:YES attributes:nil error:&error];
if (isSuccess) {
NSLog(@"創建文件夾成功");
}else{
NSLog(@"創建文件夾失敗");
}
}
//深一層文件路徑
NSString* fileDirectory = [filePath stringByAppendingPathComponent:[NSString stringWithFormat:@"%@.arc",Name]];
NSLog(@"new === %@",fileDirectory);
//解檔
Person *man = [[Person alloc]init];
man.name = @"大傻";
man.age = @"18";
BOOL success = [NSKeyedArchiver archiveRootObject:man toFile:fileDirectory];
if (success){
NSLog(@"歸檔成功");
}else{
NSLog(@"歸檔失敗");
}
id getFile = [NSKeyedUnarchiver unarchiveObjectWithFile:fileDirectory];
NSLog(@"%@",getFile);
//移除文件
-(BOOL)removeFile:(NSString *)fileName{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *path = [[paths objectAtIndex:0]stringByAppendingPathComponent:@"wyc"];
NSFileManager *manager = [NSFileManager defaultManager];
if (![manager fileExistsAtPath:path]){
return YES;
}
NSString* fileDirectory = [path stringByAppendingPathComponent:[NSString stringWithFormat:@"%@.arc",fileName]];
BOOL success = [manager removeItemAtPath:fileDirectory error:nil];
if (success){
return YES;
}
else{
return NO;
}
}
#import "BaseModel.h"
#import <objc/runtime.h>
@implementation BaseModel
#pragma mark 數據持久化
//序列化
- (void)encodeWithCoder:(NSCoder *)aCoder{
unsigned int outCount, i;
objc_property_t *properties = class_copyPropertyList([self class], &outCount);
for (i = 0; i < outCount; i++){
objc_property_t property = properties[i];
const char* char_f = property_getName(property);
NSString *propertyName = [NSString stringWithUTF8String:char_f];
id propertyValue = [self valueForKey:(NSString *)propertyName];
if (propertyValue){
[aCoder encodeObject:propertyValue forKey:propertyName];
}
}
}
//反序列化
- (id)initWithCoder:(NSCoder *)aCoder{
self = [super init];
if (self){
unsigned int outCount, i;
objc_property_t *properties =class_copyPropertyList([self class], &outCount);
for (i = 0; i<outCount; i++){
objc_property_t property = properties[i];
const char* char_f = property_getName(property);
NSString *propertyName = [NSString stringWithUTF8String:char_f];
NSString *capital = [[propertyName substringToIndex:1] uppercaseString];
NSString *setterSelStr = [NSString stringWithFormat:@"set%@%@:",capital,[propertyName substringFromIndex:1]];
SEL sel = NSSelectorFromString(setterSelStr);
[self performSelectorOnMainThread:sel
withObject:[aCoder decodeObjectForKey:propertyName]
waitUntilDone:[NSThread isMainThread]];
}
}
return self;
}
歸檔和解檔配合NSFile存儲數據