我正在关注教程： http://mobile.tutsplus.com/tutorials/iphone/building-a-jabber-client-for-ios-server-setup/使用ejabberd服务器设置iOS应用。到目前为止，我已经将代码复制到一个新项目中。
我的问题是在手机上运行时没有调用XMPP委托函数AppDelegate.m。在Simulator中一切正常，并且调用下面的两个函数。
- (void)xmppStreamDidConnect:(XMPPStream *)sender {
NSLog(@"in WSAppDelegate - xmppStreamDidConnect");
isOpen = YES;
NSError *error = nil;
[[self xmppStream] authenticateWithPassword:password error:&error];
}
- (void)xmppStreamDidAuthenticate:(XMPPStream *)sender {
NSLog(@"in WSAppDelegate - xmppStreamDidAuthenticate");
[self goOnline];
}
我可以在手机和模拟器上连接，因为此调用运行时没有错误：
[xmppStream connect:&error]
这是我的AppDelegate.h代码：
#import <UIKit/UIKit.h>
#import "XMPPRoster.h"
#import "XMPP.h"
#import "SMChatDelegate.h"
#import "SMMessageDelegate.h"
@class SMBuddyListViewController;
@interface WSAppDelegate : NSObject <UIApplicationDelegate> {
UIWindow *window;
SMBuddyListViewController *viewController;
XMPPStream *xmppStream;
XMPPRoster *xmppRoster;
NSString *password;
BOOL isOpen;
}
@property (nonatomic, retain) IBOutlet UIWindow *window;
@property (nonatomic, retain) IBOutlet SMBuddyListViewController *viewController;
@property (nonatomic, readonly) XMPPStream *xmppStream;
@property (nonatomic, readonly) XMPPRoster *xmppRoster;
@property (nonatomic, assign) id _chatDelegate;
@property (nonatomic, assign) id _messageDelegate;
- (BOOL)connect;
- (void)disconnect;
@end
和AppDelegate.m：
#import "WSBuddyListViewController.h"
@interface WSAppDelegate()
- (void)setupStream;
- (void)goOnline;
- (void)goOffline;
@end
@implementation WSAppDelegate
@synthesize xmppStream;
@synthesize xmppRoster;
@synthesize window;
@synthesize viewController;
@synthesize _chatDelegate;
@synthesize _messageDelegate;
- (void)applicationWillResignActive:(UIApplication *)application {
[self disconnect];
}
- (void)applicationDidBecomeActive:(UIApplication *)application {
[self setupStream];
BOOL connected = NO;
connected = [self connect];
NSLog(@"*** connected = %i", connected);
}
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
return YES;
}
- (void)setupStream {
NSLog(@"in WSAppDelegate - setupStream");
xmppStream = [[XMPPStream alloc] init];
[xmppStream addDelegate:self delegateQueue:dispatch_get_main_queue()];
[xmppStream setHostName:@"localhost"];
}
- (void)goOnline {
NSLog(@"in WSAppDelegate - goOnline");
XMPPPresence *presence = [XMPPPresence presence];
[[self xmppStream] sendElement:presence];
}
- (void)goOffline {
XMPPPresence *presence = [XMPPPresence presenceWithType:@"unavailable"];
[[self xmppStream] sendElement:presence];
}
- (BOOL)connect {
NSLog(@"in WSAppDelegate - connect");
[self setupStream];
NSString *jabberID = [[NSUserDefaults standardUserDefaults] stringForKey:@"userID"];
NSString *myPassword = [[NSUserDefaults standardUserDefaults] stringForKey:@"userPassword"];
if (![xmppStream isDisconnected]) {
NSLog(@"in WSAppDelegate - connect - if (![xmppStream isDisconnected]) ");
return YES;
}
if (jabberID == nil || myPassword == nil) {
NSLog(@"in WSAppDelegate - connect - if (jabberID == nil || myPassword == nil)");
return NO;
}
[xmppStream setMyJID:[XMPPJID jidWithString:jabberID]];
password = myPassword;
NSError *error = nil;
if (![xmppStream connect:&error])
{
NSLog(@"in WSAppDelegate - connect - if (![xmppStream connect:&error]))");
UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"Error"
message:[NSString stringWithFormat:@"Can't connect to server %@", [error localizedDescription]]
delegate:nil
cancelButtonTitle:@"Ok"
otherButtonTitles:nil];
[alertView show];
return NO;
}
return YES;
}
- (void)disconnect {
[self goOffline];
[xmppStream disconnect];
[_chatDelegate didDisconnect];
}
#pragma mark -
#pragma mark XMPP delegates
- (void)xmppStreamDidConnect:(XMPPStream *)sender {
NSLog(@"in WSAppDelegate - xmppStreamDidConnect");
isOpen = YES;
NSError *error = nil;
[[self xmppStream] authenticateWithPassword:password error:&error];
}
- (void)xmppStreamDidAuthenticate:(XMPPStream *)sender {
NSLog(@"in WSAppDelegate - xmppStreamDidAuthenticate");
[self goOnline];
}
- (BOOL)xmppStream:(XMPPStream *)sender didReceiveIQ:(XMPPIQ *)iq {
return NO;
}
- (void)xmppStream:(XMPPStream *)sender didReceiveMessage:(XMPPMessage *)message {
NSLog(@"in WSAppDelegate - xmppStream:(XMPPStream *)sender didReceiveMessage");
NSString *msg = [[message elementForName:@"body"] stringValue];
NSString *from = [[message attributeForName:@"from"] stringValue];
NSMutableDictionary *m = [[NSMutableDictionary alloc] init];
[m setObject:msg forKey:@"msg"];
[m setObject:from forKey:@"sender"];
[_messageDelegate newMessageReceived:m];
}
- (void)xmppStream:(XMPPStream *)sender didReceivePresence:(XMPPPresence *)presence {
NSLog(@"in WSAppDelegate - xmppStream:(XMPPStream *)sender didReceivePresence:");
NSString *presenceType = [presence type]; // online/offline
NSString *myUsername = [[sender myJID] user];
NSString *presenceFromUser = [[presence from] user];
if (![presenceFromUser isEqualToString:myUsername]) {
if ([presenceType isEqualToString:@"available"]) {
[_chatDelegate newBuddyOnline:[NSString stringWithFormat:@"%@@%@", presenceFromUser, @"localhost"]];
} else if ([presenceType isEqualToString:@"unavailable"]) {
[_chatDelegate buddyWentOffline:[NSString stringWithFormat:@"%@@%@", presenceFromUser, @"localhost"]];
}
}
}
- (void)dealloc {
[xmppStream removeDelegate:self];
[xmppRoster removeDelegate:self];
[xmppStream disconnect];
}
@end
答案 0 :(得分：8)
如果查看setupStream方法，则使用名称“localhost”。这让我相信服务器在您的开发机器上，并且设备正在尝试连接到自己（localhost）。您必须将其替换为您的服务器名称。
这可能在模拟器中有效，因为客户端和服务器是同一个。
<强>更新：
我刚刚阅读了本教程，并且在描述它如何在真实设备上运行方面做得不好。
答案 1 :(得分：0)