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我在我的代碼中有一組自定義對象。寫一個自定義對象數組
我想將此數組寫入文檔文件夾中的文件。在這個答案iPhone - archiving array of custom objects我看到了,我需要實現這個方法:
- (void)encodeWithCoder:(NSCoder *)aCoder;
- (id)initWithCoder:(NSCoder *)aDecoder;
所以我實現了他們:
- (void)encodeWithCoder:(NSCoder *)encoder {
[encoder encodeObject:self.data forKey:@"data"];
[encoder encodeObject:self.nome forKey:@"nome"];
[encoder encodeObject:self.celular forKey:@"celular"];
[encoder encodeObject:self.endereco forKey:@"endereco"];
[encoder encodeObject:self.horaConclusao forKey:@"horaConclusao"];
[encoder encodeObject:self.horaAtendimento forKey:@"horaAtendimento"];
}
- (id)initWithCoder:(NSCoder *)decoder {
self = [super init];
if (self) {
self.data = [decoder decodeObjectForKey:@"data"];
self.nome = [decoder decodeObjectForKey:@"nome"];
self.celular = [decoder decodeObjectForKey:@"celular"];
self.endereco = [decoder decodeObjectForKey:@"endereco"];
self.horaConclusao = [decoder decodeObjectForKey:@"horaConclusao"];
self.horaAtendimento = [decoder decodeObjectForKey:@"horaAtendimento"];
}
return self;
}
,並在我的代碼我寫使用這種方法:
這段代碼刪除舊文件
-(NSString *) plistHistoryFile {
NSError *error;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *path = [documentsDirectory stringByAppendingPathComponent:[nameFile stringByAppendingPathExtension:@"plist"]];
NSFileManager *filemgr = [NSFileManager defaultManager];
if ([filemgr fileExistsAtPath:path]) {
[filemgr removeItemAtPath:path error:&error];
}
return path;
}
我在這個方法中調用寫入:
-(void) writeArrayToHistoryFile:(NSArray *) array {
NSString *path = [self plistHistoryFile];
NSLog(@"%@", path);
if ([array writeToFile:path atomically:NO]) {
NSLog(@"YES");
} else {
NSLog(@"NO");
}
}
但我對日誌的迴應總是NO,我做錯了什麼?