android - 我可以通过 WIFI-Direct 在 Android 和 IOS 之间连接吗？

Question

我想通过WIFI-DIRECT在Android和IOS之间传输文件

Android 有WifiP2p 库

IOS 有 MultiPear 连接库 用于 WIFI-DIRECT

但是它在两个库之间不兼容!!!

彼此找不到网络服务

Android和IOS如何连接传输文件？？？？

Answer 1

你必须使用 NSInputStream 和 NSOutputStream 来连接 android。这不是一项简单的任务。

首先，

@property (nonatomic, strong, readwrite) NSInputStream *inputStream;
@property (nonatomic, strong, readwrite) NSOutputStream *outputStream;

然后添加这个方法，

- (void)initNetworkCommunication {

    uint portNo = 5555;
    CFReadStreamRef readStream;
    CFWriteStreamRef writeStream;
    CFStreamCreatePairWithSocketToHost(NULL, (CFStringRef)@"localhost", portNo, &readStream, &writeStream);
    inputStream = (__bridge NSInputStream *)readStream;
    outputStream = (__bridge NSOutputStream *)writeStream;

    [inputStream setDelegate:self];
    [outputStream setDelegate:self];

    [inputStream scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode];
    [outputStream scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode];
    [inputStream open];
    [outputStream open];
}

您必须调用此方法来启动 Stream。

要从这个流中发送一些东西，这里有一个例子。

- (IBAction)photoClick:(id)sender {

    NSData *newData = UIImagePNGRepresentation([UIImage imageNamed:@"s.jpg"]);
    int index = 0;
    int totalLen = [newData length];
    uint8_t buffer[1024];
    uint8_t *readBytes = (uint8_t *)[newData bytes];

    while (index < totalLen) {
        if ([outputStream hasSpaceAvailable]) {
            NSLog(@"Sending");
            int indexLen =  (1024>(totalLen-index))?(totalLen-index):1024;

            (void)memcpy(buffer, readBytes, indexLen);

            int written = [outputStream write:buffer maxLength:indexLen];

            if (written < 0) {
                break;
            }

            index += written;

            readBytes += written;
        }
    }
}