@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.age = 10;
//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"];
[dict setObject:[NSNumbernumberWithInt:10] 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