im_ios: An Objective-C repository from fanxu1218

#gobelieve iOS gobelieve iOS SDK

##生成demo的workspace

cp demo/dev.podspec ./
pod install

##应用集成到自己的客户端

podfile

 pod 'gobelieve', :git => 'https://github.com/GoBelieveIO/im_ios.git'

在AppDelegate初始化deviceID以及message handler

 [IMService instance].deviceID = deviceID;
 [IMService instance].peerMessageHandler = [PeerMessageHandler instance];
 [IMService instance].groupMessageHandler = [GroupMessageHandler instance];
 [IMService instance].customerMessageHandler = [CustomerMessageHandler instance];

在AppDelegate中监听系统网络变化

 -(void)startRechabilityNotifier {
     self.reach = [GOReachability reachabilityForInternetConnection];
     self.reach.reachableBlock = ^(GOReachability*reach) {
         dispatch_async(dispatch_get_main_queue(), ^{
             NSLog(@"internet reachable");
             [[IMService instance] onReachabilityChange:YES];
         });
     };
     
     self.reach.unreachableBlock = ^(GOReachability*reach) {
         dispatch_async(dispatch_get_main_queue(), ^{
             NSLog(@"internet unreachable");
             [[IMService instance] onReachabilityChange:NO];
         });
     };
     
     [self.reach startNotifier];

 }

 [self startRechabilityNotifier];
 [IMService instance].reachable = [self.reach isReachable];

登录成功之后设置token和uid, token和uid从应用本身的登录接口获得

 [IMService instance].token = ""
 [PeerMessageHandler instance].uid = uid
 [GroupMessageHandler instance].uid = uid
 [CustomerMessageHandler instance].uid = uid

 SyncKeyHandler *handler = [[SyncKeyHandler alloc] initWithFileName:fileName];
 [IMService instance].syncKeyHandler = handler;

初始化消息db

 NSFileManager *fileManager = [NSFileManager defaultManager];
 if (![fileManager fileExistsAtPath:dbPath]) {
     NSString *p = [[NSBundle mainBundle] pathForResource:@"gobelieve" ofType:@"db"];
     [fileManager copyItemAtPath:p toPath:dbPath error:nil];
 }
 FMDatabase *db = [[FMDatabase alloc] initWithPath:dbPath];
 BOOL r = [db openWithFlags:SQLITE_OPEN_READWRITE|SQLITE_OPEN_WAL vfs:nil];
 if (!r) {
     NSLog(@"open database error:%@", [db lastError]);
     db = nil;
     NSAssert(NO, @"");
 }

 [PeerMessageDB instance].db = db;
 [GroupMessageDB instance].db = db;
 [CustomerMessageDB instance].db = db;

启动IMService开始接受消息
```
 [[IMService instance] start];
```

添加消息observer，处理相应类型的消息

 //连接状态
 [[IMService instance] addConnectionObserver:ob];

 //点对点消息
 [[IMService instance] addPeerMessageObserver:ob];
 //群组消息
 [[IMService instance] addGroupMessageObserver:ob];
 //直播的聊天室消息
 [[IMService instance] addRoomMessageObserver:ob];
 //实时消息,用于voip的信令
 [[IMService instance] addRTMessageObserver:ob];
 //系统消息
 [[IMService instance] addSystemMessageObserver:ob];

app进入后台,断开socket链接

 [[IMService instance] enterBackground];

app返回前台,重新链接socket

[[IMService instance] enterForeground];

发送点对点消息

PeerMessageViewController* msgController = [[PeerMessageViewController alloc] init];
msgController.peerUID = peerUID;
msgController.peerName = @"";
msgController.currentUID = uid;
[self.navigationController pushViewController:msgController animated:YES];

发送群组消息

GroupMessageViewController* msgController = [[GroupMessageViewController alloc] init];
msgController.groupID = groupID;
msgController.groupName = @"";
msgController.currentUID = uid;
[self.navigationController pushViewController:msgController animated:YES];

用户注销
```
[[IMService instance] stop]
```

fanxu1218/im_ios