如何正确显示到NSTextView？ NSString/NSInputStream/NSTextView
问题描述：
#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，我正在寻找一个雄辩的方式来改变[窗口setString：输出]方法。这是我为了玩MUD（基于文本的游戏）而编写的程序的.m文件。 inputstream表示一个连接到发送我的客户信息（字节）的游戏服务器。每次hasBytesAvailable事件发生时，字节都会转换为字符串。这些字节然后显示在窗口的文本字段上。我遇到的问题是，每次发生事件时，它都会取代最初在屏幕上显示的内容。我试图创建一个占位符字符串，它保存输出数据，然后附加到该字符串中显示。它似乎没有按照我想要的方式工作。我希望能够不断从流中获取数据，并在整个程序中逐行显示。我试过NSArray和NSMutableString ...我似乎无法弄清楚如何创建全局字符串变量，我可以每次发生hasBytesAvailable事件时追加。谢谢大家的阅读，我希望你能帮助。如何正确显示到NSTextView？ NSString/NSInputStream/NSTextView
那么，如果是这种情况，那么创建singleton类insode声明你的mutablestring，只需追加inisde，并设置到屏幕 –
完美的工作！不好意思，因为我现在只学了几个礼拜。 –
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