#import "AppDelegate.h"
@implementation AppDelegate
@synthesize inputStream;
@synthesize outputStream;
@synthesize textField;
@synthesize window;
@synthesize aText;
- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
{
[self initNetworkCommunication];
}
- (void)initNetworkCommunication {
CFReadStreamRef readStream;
CFWriteStreamRef writeStream;
CFStreamCreatePairWithSocketToHost(NULL, (CFStringRef)@"tec.skotos.net", 6730, &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];
NSString *response = [NSString stringWithFormat:@"/\\/connect: n/a!!n/a"];
NSData *data = [[NSData alloc] initWithData:[response dataUsingEncoding:NSASCIIStringEncoding]];
NSString *end = @"\n";
NSData *endData = [[NSData alloc] initWithData:[end dataUsingEncoding:NSASCIIStringEncoding]];
[outputStream write:[data bytes] maxLength:[data length]];
[outputStream write:[endData bytes] maxLength:[endData length]];
}
- (IBAction)sendMessage:(id)sender {
NSString *response = [textField stringValue ];
NSData *data = [[NSData alloc] initWithData:[response dataUsingEncoding:NSASCIIStringEncoding]];
NSString *end = @"\n";
NSData *endData = [[NSData alloc] initWithData:[end dataUsingEncoding:NSASCIIStringEncoding]];
[outputStream write:[data bytes] maxLength:[data length]];
[outputStream write:[endData bytes] maxLength:[endData length]];
}
- (void)stream:(NSStream *)theStream handleEvent:(NSStreamEvent)streamEvent {
switch (streamEvent) {
case NSStreamEventOpenCompleted:
NSLog(@"Stream opened");
break;
case NSStreamEventHasSpaceAvailable:
NSLog(@"Has space");
break;
case NSStreamEventHasBytesAvailable:
if (theStream == inputStream) {
uint8_t buffer[900000];
long len;
while ([inputStream hasBytesAvailable]) {
len = [inputStream read:buffer maxLength:sizeof(buffer)];
if (len > 0) {
NSString *output = [[NSString alloc] initWithBytes:buffer length:len encoding:NSASCIIStringEncoding];
NSLog(@"Has Bytes");
if (nil != output) {
NSLog(@"%@", output);
[window setString:output];
}
}
}
}
break;
case NSStreamEventEndEncountered:
NSLog(@"Error.");
break;
}
}
@end
所以，我正在寻找一种雄辩的方式来改变 [window setString:output] 方法。这是我为玩 MUD（基于文本的游戏）而尝试编写的程序的 .m 文件。输入流表示与发送我的客户端信息（字节）的游戏服务器的连接。每次发生 hasBytesAvailable 事件时，字节都会转换为字符串。然后这些字节显示在窗口的文本字段中。我遇到的问题是每次事件发生时它都会替换最初在屏幕上的内容。我尝试创建一个占位符字符串来保存输出数据，然后附加到该字符串以显示。它似乎没有按我想要的方式工作。我希望能够不断地从流中获取数据，这些数据将在整个程序中连续逐行显示。我' 我尝试过 NSArray 和 NSMutableString ...我似乎无法弄清楚如何创建全局字符串变量，每次发生 hasBytesAvailable 事件时我都可以附加该变量。谢谢大家的阅读，希望对大家有所帮助。