CRIMInitConfig *config = [CRIMInitConfig new];
config.sdkServer = @"http://www.xxxx.com"; // 设置sdk服务器地址 ，例如 http://www.xxxx.com
config.objectStorage = @""; // 设置对象存储方式，默认minio
config.logLevel = 6;
BOOL success = [CRIMManager.manager initSDKWithConfig:config];
[CRIMManager.callbacker addIMSDKListener:obj]; //添加sdk连接状态监听
[CRIMManager.manager
login:userId
token:token
onSuccess:^(NSString * _Nullable data) {
        // 登录成功回调 
}
onFailure:^(NSInteger code, NSString * _Nullable msg) {
        // 登录失败回调错误信息
}];

String sdkServer = "http://www.xxxx.com"; // 设置sdk服务器地址，例如 http://www.xxxx.com
int logLevel = 6;
boolean isLogStandardOutput = true;
String logFilePath = "/xxx/xxx/xxx";
boolean isExternalExtensions = false;
//设置消息监听 connListener
public OnConnListener connListener = new OnConnListener() {
    void onConnectFailed(int var1, String var2);
    void onConnectSuccess();
    void onConnecting();
    void onKickedOffline();
    void onUserTokenExpired();
}
CRIMClient.getInstance().initSDK(app, Platform.ANDROID, sdkServer, logLevel, isLogStandardOutput, logFilePath, isExternalExtensions, connListener);