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串,我发现一个代码片段here,我想用,但我无法弄清楚如何使它回到“串”,看看它是否工程...JSON在iOS5中
// some strings for test
NSString *cpu = [[NSString alloc] initWithFormat:@"%.0f", [_cpuSlider value]];
NSString *ram = [[NSString alloc] initWithFormat:@"%.0f", [_ramSlider value]];
NSString *hdd = [[NSString alloc] initWithFormat:@"%.0f", [_hddSlider value]];
// put them into dictionary
NSDictionary *test = [NSDictionary dictionaryWithObjectsAndKeys:cpu, @"CPU", ram, @"RAM", hdd, @"HDD", nil];
// start of the code from page above
NSMutableData *myData = [[NSMutableData alloc]init];
NSKeyedArchiver *archiver = [[NSKeyedArchiver alloc]initForWritingWithMutableData:myData];
[archiver encodeObject:test forKey:@"MyKEY"];
[archiver finishEncoding];
id testJson = [NSJSONSerialization JSONObjectWithData:myData options:0 error:nil];
// end of code
// HERE I'd like know what to put in to see it as a string..e.g. { "CPU"=value; etc...}
UIAlertView *av = [[UIAlertView alloc] initWithTitle:@"MLIA" message:????? delegate:nil cancelButtonTitle:@"Zavřít" otherButtonTitles: nil];
[av show];
非常感谢!
这非常非常简单!非常感谢!你是什么意思“不要忘记autorelease”?我对iOS开发很陌生,但是这不是因为ARC而弃用了吗? – Michal 2012-04-13 16:21:49
如果您使用ARC,那么是的,您可以(必须!)跳过发布。由于遗留代码和库,并非所有人都使用ARC。 – 2012-04-14 03:32:35
@MarceloCantos你可能想指出究竟是什么需要在这里发布。在这种情况下,它是字符串'repr',因为它是使用alloc-init创建的。根据我的理解,json对象应该是一个自动释放对象。 – pnizzle 2015-03-11 07:24:24