小编Wan*_*now的帖子

我试图从服务器获取数据.我使用NSURLConnectionDelegate,NSURLConnectionDataDelegate.有代码(Objective-C).

-(void)sendRequest
{
NSURL* url = [[NSURL alloc] initWithString:@"http://SomeServer"];

NSMutableURLRequest* request = [[NSMutableURLRequest alloc] init];


NSString* reqBody = [NSString stringWithFormat:@"<tag>Content</tag>"];

NSData* reqData = [reqBody dataUsingEncoding:NSUTF8StringEncoding];

NSInputStream* stream = [NSInputStream inputStreamWithData:reqData];



[request setURL:url];
[request setHTTPBodyStream:stream];
[request setHTTPMethod:@"POST"];

self.wpData = [[NSMutableData alloc] init];
NSURLConnection* conection = [[NSURLConnection alloc] initWithRequest:request delegate:self];

[conection start];

}

- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response {

    [self.wpData setLength:0];    

}

- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)d {
NSString* str = [[NSString alloc] initWithData:d encoding:NSUTF8StringEncoding];

NSLog(@"RESPONSE DATA: %@",str);
[self.wpData appendData:d];
}

但是当我使用时,我得到"411 …

我有一个简单的IOS应用程序.它包括两个工具栏和地图视图.我只使用默认库(没有可可等).

当我在真正的IPhone5s(IOS8.1)上调试我的应用程序时,当我改变方向时,我的控制台中"无法分配渲染缓冲区存储!0x1741f2c00"(模拟器没问题).状态栏在转向横向时消失,当它在真实设备和模拟器上是纵向时返回(这是我的一般问题).

应用程序订阅UIDeviceOrientationDidChangeNotification.

[[UIDevice currentDevice] beginGeneratingDeviceOrientationNotifications];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(orientationChanged:) name:UIDeviceOrientationDidChangeNotification object:[UIDevice currentDevice]];

但文本出现在控制台和状态栏中,与呼叫无关

-(void)orientationChanged:(NSNotification *)note
{

}

谷歌不帮助我.连接到cocoa库的所有链接错误或我不使用的一些图形方法.

对不起我的英语不好.谢谢 :)

我试图从响应中获取数据.
我正在使用NSURLConnectionDelegate,NSURLConnectionDataDelegate.
该项目使用ARC.

@interface MainMenu()

@property (nonatomic, unsafe_unretained) NSMutableData* wpData;

@end 


@implementation

-(void)sendRequest{

    NSURL* url = [[NSURL alloc] initWithString:@"http://smthing"];

    NSMutableURLRequest* request = [[NSMutableURLRequest alloc] init];


    NSString* reqBody = @"Block";

    NSData* reqData = [reqBody dataUsingEncoding:NSUTF8StringEncoding];

    [request setURL:url];
    [request setHTTPBody:reqData];
    [request setHTTPMethod:@"POST"];

    self.wpData = [NSMutableData data];
    NSURLConnection* conection = [[NSURLConnection alloc] initWithRequest:request delegate:self];

    [conection start];
}

-(void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response {

//Here iI have [__NSMallocBlock__ appendData:]: unrecognized selector sent to instance 0x95f3fb0
        [self.wpData setLength:0];


}

@end

也许你可以找到我的错误

谢谢 …