如何正確顯示到NSTextView？ NSString/NSInputStream/NSTextView

#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，我正在尋找一個雄辯的方式來改變[窗口setString：輸出]方法。這是我爲了玩MUD（基於文本的遊戲）而編寫的程序的.m文件。 inputstream表示一個連接到發送我的客戶信息（字節）的遊戲服務器。每次hasBytesAvailable事件發生時，字節都會轉換爲字符串。這些字節然後顯示在窗口的文本字段上。我遇到的問題是，每次發生事件時，它都會取代最初在屏幕上顯示的內容。我試圖創建一個佔位符字符串，它保存輸出數據，然後附加到該字符串中顯示。它似乎沒有按照我想要的方式工作。我希望能夠不斷從流中獲取數據，並在整個程序中逐行顯示。我試過NSArray和NSMutableString ...我似乎無法弄清楚如何創建全局字符串變量，我可以每次發生hasBytesAvailable事件時追加。謝謝大家的閱讀，我希望你能幫助。如何正確顯示到NSTextView？ NSString/NSInputStream/NSTextView

來源

2013-10-26 Andy Francis

那麼，如果是這種情況，那麼創建singleton類insode聲明你的mutablestring，只需追加inisde，並設置到屏幕 –

完美的工作！不好意思，因爲我現在只學了幾個禮拜。 –

我從套接字服務器接收到的字符串是用HTML標記的，創建一個類去除HTML標籤併爲實際標記設置功能（如等）的好方法是... –

解答您在解析HTML標記時的問題。看看NSXMLParser和NSXMLParserDelegate自己解析它們。否則看看HTML parsing options

來源

2013-11-03 23:32:10

如何正確顯示到NSTextView？ NSString/NSInputStream/NSTextView

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