IOS之【属性列表】

@implementation JamesWongViewController

- (void)viewDidLoad

{

[superviewDidLoad];

[selfwritePerson];

}

#pragma mark 尝试写Person

// 不能通过writeToFile将一个普通对象写入文件中

// writeToFile会删掉以前存在的文字，创建一个新的文件

- (void)writePerson {

Person *person = [[[Person alloc] init] autorelease];

person.name = @"JamesWong";

person.;

//NSArray *array = [NSArray arrayWithObject:person];

// 注意：第一个参数是NSDocumentDirectory,说明要搜索Documents目录

// NSUserDomainMask：在应用沙盒中搜索

// 如果第3个参数写NO：~/Documents

// 在iOS平台，这个函数返回的数组中只有1个结果

//NSString *documents = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];

NSString *path = [documents stringByAppendingPathComponent:@"array.plist"];

NSArray *array = [NSArray arrayWithObjects:@"1", nil];

[array writeToFile:path atomically:YES];

}

#pragma mark 将字典写入属性列表文件中

- (void)writeDict {

NSMutableDictionary *dict = [NSMutableDictionarydictionary];

[dict setObject:@"JamesWong"forKey:@"name"];

] forKey:@"age"];

// 获取应用沙盒的根路径

NSString *home = NSHomeDirectory();

NSString *documents = [home stringByAppendingPathComponent:@"Documents"];

// 属性列表的默认拓展名是plist

NSString *path = [documents stringByAppendingPathComponent:@"dict.plist"];

[dict writeToFile:path atomically:YES];

}

#pragma mark 从属性列表文件中读取字典

- (void)readDict {

// 获取应用沙盒的根路径

NSString *home = NSHomeDirectory();

NSString *documents = [home stringByAppendingPathComponent:@"Documents"];

// 属性列表的默认拓展名是plist

NSString *path = [documents stringByAppendingPathComponent:@"dict.plist"];

NSDictionary *dict = [NSDictionarydictionaryWithContentsOfFile:path];

NSLog(@"%@", dict);

}

@end