diff --git a/yinmeng-ios/DingDangApp.xcodeproj/project.pbxproj b/yinmeng-ios/DingDangApp.xcodeproj/project.pbxproj
index 3193050..1ebdc23 100644
--- a/yinmeng-ios/DingDangApp.xcodeproj/project.pbxproj
+++ b/yinmeng-ios/DingDangApp.xcodeproj/project.pbxproj
@@ -767,6 +767,9 @@
 		8C2C3F542B2A41F5002C3C34 /* DDV2PhoneCodeVC.m in Sources */ = {isa = PBXBuildFile; fileRef = 8C2C3F532B2A41F5002C3C34 /* DDV2PhoneCodeVC.m */; };
 		8C2C3F572B2A4350002C3C34 /* DDLoginSVGAView.m in Sources */ = {isa = PBXBuildFile; fileRef = 8C2C3F562B2A4350002C3C34 /* DDLoginSVGAView.m */; };
 		8C2C3F5A2B2A70F9002C3C34 /* DDLoginRequest.m in Sources */ = {isa = PBXBuildFile; fileRef = 8C2C3F592B2A70F9002C3C34 /* DDLoginRequest.m */; };
+		8C2C3F612B2A9A3B002C3C34 /* DDGloabalConstant.m in Sources */ = {isa = PBXBuildFile; fileRef = 8C2C3F602B2A9A3B002C3C34 /* DDGloabalConstant.m */; };
+		8C2C3F662B2A9C26002C3C34 /* DDRegisterCustomDecoder.m in Sources */ = {isa = PBXBuildFile; fileRef = 8C2C3F652B2A9C26002C3C34 /* DDRegisterCustomDecoder.m */; };
+		8C2C3F6A2B2A9CFB002C3C34 /* DDCustomAttachmentModel.m in Sources */ = {isa = PBXBuildFile; fileRef = 8C2C3F692B2A9CFB002C3C34 /* DDCustomAttachmentModel.m */; };
 		8CE493992B23F44800CA14D5 /* NSMutableDictionary+DDSafe.m in Sources */ = {isa = PBXBuildFile; fileRef = 8CE493982B23F44800CA14D5 /* NSMutableDictionary+DDSafe.m */; };
 		8CE4939C2B23F45C00CA14D5 /* NSArray+DDSafe.m in Sources */ = {isa = PBXBuildFile; fileRef = 8CE4939B2B23F45C00CA14D5 /* NSArray+DDSafe.m */; };
 		8CE493A02B23F5FA00CA14D5 /* DDUploadFile.m in Sources */ = {isa = PBXBuildFile; fileRef = 8CE4939F2B23F5FA00CA14D5 /* DDUploadFile.m */; };
@@ -2196,6 +2199,12 @@
 		8C2C3F582B2A70F9002C3C34 /* DDLoginRequest.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = DDLoginRequest.h; sourceTree = "<group>"; };
 		8C2C3F592B2A70F9002C3C34 /* DDLoginRequest.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = DDLoginRequest.m; sourceTree = "<group>"; };
 		8C2C3F5E2B2A886A002C3C34 /* DDV2RequestUrl.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = DDV2RequestUrl.h; sourceTree = "<group>"; };
+		8C2C3F5F2B2A9A3B002C3C34 /* DDGloabalConstant.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = DDGloabalConstant.h; sourceTree = "<group>"; };
+		8C2C3F602B2A9A3B002C3C34 /* DDGloabalConstant.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = DDGloabalConstant.m; sourceTree = "<group>"; };
+		8C2C3F642B2A9C26002C3C34 /* DDRegisterCustomDecoder.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = DDRegisterCustomDecoder.h; sourceTree = "<group>"; };
+		8C2C3F652B2A9C26002C3C34 /* DDRegisterCustomDecoder.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = DDRegisterCustomDecoder.m; sourceTree = "<group>"; };
+		8C2C3F682B2A9CFB002C3C34 /* DDCustomAttachmentModel.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = DDCustomAttachmentModel.h; sourceTree = "<group>"; };
+		8C2C3F692B2A9CFB002C3C34 /* DDCustomAttachmentModel.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = DDCustomAttachmentModel.m; sourceTree = "<group>"; };
 		8CAB97312B2259EA00ED8639 /* Security.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = Security.framework; path = System/Library/Frameworks/Security.framework; sourceTree = SDKROOT; };
 		8CE493972B23F44800CA14D5 /* NSMutableDictionary+DDSafe.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = "NSMutableDictionary+DDSafe.h"; sourceTree = "<group>"; };
 		8CE493982B23F44800CA14D5 /* NSMutableDictionary+DDSafe.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = "NSMutableDictionary+DDSafe.m"; sourceTree = "<group>"; };
@@ -5497,6 +5506,8 @@
 			isa = PBXGroup;
 			children = (
 				23B2A8062B2843B6001C0913 /* DDMacroHeader.h */,
+				8C2C3F5F2B2A9A3B002C3C34 /* DDGloabalConstant.h */,
+				8C2C3F602B2A9A3B002C3C34 /* DDGloabalConstant.m */,
 			);
 			path = DDGlobalManager;
 			sourceTree = "<group>";
@@ -5505,6 +5516,7 @@
 			isa = PBXGroup;
 			children = (
 				23B62C2E2B299E26005FD3DE /* DDDynamic */,
+				8C2C3F622B2A9BEC002C3C34 /* DDNIM */,
 				23A7F7902B29551D00288CAE /* DDApplePay */,
 				23A7F7862B28795500288CAE /* DDHome */,
 				23A7F78A2B28795500288CAE /* DDMine */,
@@ -5756,6 +5768,33 @@
 			path = Model;
 			sourceTree = "<group>";
 		};
+		8C2C3F622B2A9BEC002C3C34 /* DDNIM */ = {
+			isa = PBXGroup;
+			children = (
+				8C2C3F672B2A9CEC002C3C34 /* Model */,
+				8C2C3F632B2A9C04002C3C34 /* Tool */,
+			);
+			path = DDNIM;
+			sourceTree = "<group>";
+		};
+		8C2C3F632B2A9C04002C3C34 /* Tool */ = {
+			isa = PBXGroup;
+			children = (
+				8C2C3F642B2A9C26002C3C34 /* DDRegisterCustomDecoder.h */,
+				8C2C3F652B2A9C26002C3C34 /* DDRegisterCustomDecoder.m */,
+			);
+			path = Tool;
+			sourceTree = "<group>";
+		};
+		8C2C3F672B2A9CEC002C3C34 /* Model */ = {
+			isa = PBXGroup;
+			children = (
+				8C2C3F682B2A9CFB002C3C34 /* DDCustomAttachmentModel.h */,
+				8C2C3F692B2A9CFB002C3C34 /* DDCustomAttachmentModel.m */,
+			);
+			path = Model;
+			sourceTree = "<group>";
+		};
 		8CE493952B23F2B400CA14D5 /* DDBaseTool */ = {
 			isa = PBXGroup;
 			children = (
@@ -6388,6 +6427,7 @@
 				188EC0EC2A47CF3200060F03 /* DDMEmoticonCell.m in Sources */,
 				18660D4E2A2193C50032D0C9 /* NSDictionary+Custom.m in Sources */,
 				186EBFB72A402F33005623CC /* DynamicCommentViewController.m in Sources */,
+				8C2C3F662B2A9C26002C3C34 /* DDRegisterCustomDecoder.m in Sources */,
 				188EC0E12A47CF3200060F03 /* SVGView.m in Sources */,
 				18660DCE2A21E54B0032D0C9 /* RoomMicroView.m in Sources */,
 				18B1EA252A26F31A00DDE889 /* DDDynamicDataTableViewCell.m in Sources */,
@@ -6554,6 +6594,7 @@
 				1867778B2A42D3D80096D802 /* RoomTypeCollectionViewCell.m in Sources */,
 				189956A22A21F804002ABEEB /* RoomMicroHeaderView.m in Sources */,
 				188CA97F2A501A6200DAFC86 /* DDV2HomeListVC.m in Sources */,
+				8C2C3F6A2B2A9CFB002C3C34 /* DDCustomAttachmentModel.m in Sources */,
 				183864392A28A17B005BF235 /* ZLAlbumListController.m in Sources */,
 				186C9D062A29EE3500209BB5 /* ZLMediaProgressView.m in Sources */,
 				187AE10A2A493DFB00B427CB /* RoomBlackListView.m in Sources */,
@@ -6625,6 +6666,7 @@
 				18660D802A21947B0032D0C9 /* WLBaseTableViewCell.m in Sources */,
 				18660CBE2A21913E0032D0C9 /* WRNavigationBar.m in Sources */,
 				18C905082A233D5200F7CAFD /* XHPageControl.m in Sources */,
+				8C2C3F612B2A9A3B002C3C34 /* DDGloabalConstant.m in Sources */,
 				188EC1402A47CF3300060F03 /* HXPhotoEditStickerTrashView.m in Sources */,
 				188EBF6A2A47CEA500060F03 /* DDMessageCell.m in Sources */,
 				188EBF6D2A47CEA500060F03 /* DDInteractiveMessageVC.m in Sources */,
diff --git a/yinmeng-ios/DingDangApp.xcodeproj/xcshareddata/xcschemes/DingDangApp.xcscheme b/yinmeng-ios/DingDangApp.xcodeproj/xcshareddata/xcschemes/DingDangApp.xcscheme
index f8380f6..d21fe79 100644
--- a/yinmeng-ios/DingDangApp.xcodeproj/xcshareddata/xcschemes/DingDangApp.xcscheme
+++ b/yinmeng-ios/DingDangApp.xcodeproj/xcshareddata/xcschemes/DingDangApp.xcscheme
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
    LastUpgradeVersion = "1430"
-   version = "1.7">
+   version = "1.8">
    <BuildAction
       parallelizeBuildables = "YES"
       buildImplicitDependencies = "YES">
diff --git a/yinmeng-ios/DingDangApp/AppDelegate/AppDelegate+CYLTabBar.m b/yinmeng-ios/DingDangApp/AppDelegate/AppDelegate+CYLTabBar.m
index cb60d73..0e0ca80 100644
--- a/yinmeng-ios/DingDangApp/AppDelegate/AppDelegate+CYLTabBar.m
+++ b/yinmeng-ios/DingDangApp/AppDelegate/AppDelegate+CYLTabBar.m
@@ -21,6 +21,8 @@
 #import "AccountInfoStorage.h"
 #import "HttpRequestHelper.h"
 #import "DDLoginRequest.h"
+/// Tool
+#import <NIMSDK/NIMSDK.h>
 
 @interface AppDelegate (CYLTabBar)
 
@@ -56,6 +58,7 @@
         NSArray *tickets = [data.data valueForKey:@"tickets"];
         NSString *ticket = [tickets[0] valueForKey:@"ticket"];
         [[AccountInfoStorage instance] saveTicket:ticket];
+        [self loginNIM];
         [self getUserInfo];
     } failure:^(NSInteger resCode, NSString * _Nonnull message) {
         [ToolsObject addPopVieToText:[NSString stringWithFormat:@"加载页面%@失败，请重新登录",message]];
@@ -65,6 +68,31 @@
     }];
 }
 
+- (void)loginNIM {
+    AccountModel *accountModel = [[AccountInfoStorage instance] getCurrentAccountInfo];
+    if (accountModel == nil) {
+        [self gotoWithLoginController];
+        return;
+    }
+    
+    if ([NIMSDK sharedSDK].loginManager.isLogined) {
+        return;
+    }
+    
+    NIMAutoLoginData *data = [[NIMAutoLoginData alloc]init];
+    data.account = accountModel.uid;
+    data.token = accountModel.netEaseToken;
+    data.forcedMode = NO;
+//    [[NIMSDK sharedSDK].loginManager autoLogin:data];
+    [[NIMSDK sharedSDK].loginManager login:accountModel.uid token:accountModel.netEaseToken completion:^(NSError * _Nullable error) {
+        if (error) {
+
+        }
+
+    }];
+    
+}
+
 - (void)getUserInfo {
     [DDLoginRequest DD_LoadRequestUserInfo:[[AccountInfoStorage instance] getUid] completed:^(UserInfoModel * _Nonnull userInfo) {
         if (userInfo == nil) {
diff --git a/yinmeng-ios/DingDangApp/AppDelegate/AppDelegate+Other.m b/yinmeng-ios/DingDangApp/AppDelegate/AppDelegate+Other.m
index 963b94a..063a6e1 100644
--- a/yinmeng-ios/DingDangApp/AppDelegate/AppDelegate+Other.m
+++ b/yinmeng-ios/DingDangApp/AppDelegate/AppDelegate+Other.m
@@ -13,6 +13,9 @@
 #import <UMCommon/UMCommon.h>
 #import <UMLink/UMLink.h>
 #import "DDV2LoginVC.h"
+#import <NIMSDK/NIMSDK.h>
+#import "DDGloabalConstant.h"
+#import "DDRegisterCustomDecoder.h"
 @interface AppDelegate (Other)
 @end
 
@@ -41,8 +44,34 @@
                                    didEndEditingNotificationName:YYTextViewTextDidEndEditingNotification];
     [self initUMeng];
     [self initShanyanSDK];
+    [self initNIM];
     [HCKeepBGRunManager shareManager];
 }
+
+// 推荐在程序启动的时候初始化 NIMSDK
+- (void)initNIM {
+    NSString *appKey        = DD_Constant_KeyWithType(DD_Constant_KeyType_NetEase);
+    NIMSDKOption *option    = [NIMSDKOption optionWithAppKey:appKey];
+    option.apnsCername      = DD_Constant_KeyWithType(DD_Constant_KeyType_APNSCer);
+    [[NIMSDK sharedSDK] registerWithOption:option];
+    
+    // NIM SDK初始化
+    [NIMCustomObject registerCustomDecoder:[[DDRegisterCustomDecoder alloc] init]];
+
+#ifdef DEBUG
+    [NIMSDKConfig sharedConfig].enabledHttpsForInfo = NO;
+    [NIMSDKConfig sharedConfig].enabledHttpsForMessage = NO;
+#endif
+
+    if (@available(iOS 11.0, *)){
+        UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
+        [center requestAuthorizationWithOptions:(UNAuthorizationOptionBadge | UNAuthorizationOptionSound | UNAuthorizationOptionAlert) completionHandler:^(BOOL granted, NSError * _Nullable error) {
+        }];
+    }
+    [[UIApplication sharedApplication] registerForRemoteNotifications];
+}
+
+
 - (void)initUMeng {
     NSString * channel = @"App Store";
 #ifdef DEBUG
@@ -84,8 +113,7 @@
         }
     }];
 }
-- (void)getLinkPath:(NSDictionary *)params
-{
+- (void)getLinkPath:(NSDictionary *)params {
     UINavigationController *platformVc = (UINavigationController *)self.window.rootViewController;
     if (params.count > 0) {
         DDV2LoginVC *vc = platformVc.viewControllers[0];
diff --git a/yinmeng-ios/DingDangApp/AppDelegate/AppDelegate.m b/yinmeng-ios/DingDangApp/AppDelegate/AppDelegate.m
index 7e16afd..e8b845f 100644
--- a/yinmeng-ios/DingDangApp/AppDelegate/AppDelegate.m
+++ b/yinmeng-ios/DingDangApp/AppDelegate/AppDelegate.m
@@ -11,6 +11,7 @@
 #import "AppDelegate+NetworkStatus.h"
 #import "AppDelegate+CYLTabBar.h"
 #import "AppDelegate+Other.h"
+#import <NIMSDK/NIMSDK.h>
 
 @interface AppDelegate ()
 
@@ -35,6 +36,15 @@
 }
 
 
+- (void)applicationDidEnterBackground:(UIApplication *)application {
+    NSInteger count = [NIMSDK sharedSDK].conversationManager.allUnreadCount;
+    [[UIApplication sharedApplication] setApplicationIconBadgeNumber:count];
+}
+
+- (void)application:(UIApplication *)app didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken {
+    // 上传devicetoken至云信服务器。
+    [[NIMSDK sharedSDK] updateApnsToken:deviceToken];
+}
 
 + (AppDelegate* )getAppdelegate {
     return (AppDelegate*)[UIApplication sharedApplication].delegate;
diff --git a/yinmeng-ios/DingDangApp/BsaseClass/Controllers/CustomTabbarController/WLCoustomTabBarController.m b/yinmeng-ios/DingDangApp/BsaseClass/Controllers/CustomTabbarController/WLCoustomTabBarController.m
index af4bccd..fffeeb8 100644
--- a/yinmeng-ios/DingDangApp/BsaseClass/Controllers/CustomTabbarController/WLCoustomTabBarController.m
+++ b/yinmeng-ios/DingDangApp/BsaseClass/Controllers/CustomTabbarController/WLCoustomTabBarController.m
@@ -15,8 +15,12 @@
 #import "DDV2HomePVC.h"
 #import "UITabBar+badge.h"
 #import "DDFMDBManager.h"
+#import <NIMSDK/NIMSDK.h>
+#import "AccountInfoStorage.h"
+#import "AccountModel.h"
 
-@interface WLCoustomTabBarController ()<UITabBarControllerDelegate,UIGestureRecognizerDelegate>
+@interface WLCoustomTabBarController ()<UITabBarControllerDelegate,UIGestureRecognizerDelegate,
+NIMLoginManagerDelegate, NIMSystemNotificationManagerDelegate,NIMChatManagerDelegate>
 
 @end
 
@@ -25,6 +29,12 @@
 - (void)viewDidLoad {
     [super viewDidLoad];
     // Do any additional setup after loading the view.
+    NSLog(@"云信登录是否成功:%ld",[NIMSDK sharedSDK].loginManager.isLogined)
+    
+    [[NIMSDK sharedSDK].loginManager addDelegate:self];
+    [[NIMSDK sharedSDK].chatManager addDelegate:self];
+    [[NIMSDK sharedSDK].systemNotificationManager addDelegate:self];
+    [[NIMSDK sharedSDK].broadcastManager addDelegate:self];
     
     //添加未读消息数量监听
     [[DDMTool sharedTool] observationInform:self sel:@selector(messageUnreadNumber:) notificationName:[[DDMTool sharedTool]getinformType:(YVMessageNotice_MessageUnreadNumber)]];
@@ -264,14 +274,28 @@
 }
 
 
-/*
- #pragma mark - Navigation
- 
- // In a storyboard-based application, you will often want to do a little preparation before navigation
- - (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
- // Get the new view controller using [segue destinationViewController].
- // Pass the selected object to the new view controller.
- }
- */
+#pragma mark - NIMLoginManagerDelegate
+- (void)onAutoLoginFailed:(NSError *)error {
+    // 如果非上次登录设备 autoLogin 会返回 417
+    if (error.code == 417) {
+//        @weakify(self);
+        AccountModel* accountModel = [AccountInfoStorage instance].getCurrentAccountInfo;
+        [[NIMSDK sharedSDK].loginManager login:accountModel.uid token:accountModel.netEaseToken completion:^(NSError * _Nullable error) {
+            if (error) {
+//                @strongify(self);
+                [ToolsObject loginOutJump];
+//                [self.presenter logout];
+            }
+        }];
+        return;
+    }
+    [ToolsObject loginOutJump];
+//    [self.presenter logout];
+}
+
+- (void)onLogin:(NIMLoginStep)step {
+    if (step != NIMLoginStepLoginOK) return;
+ //        [self addMessageBadge];
+}
 
 @end
diff --git a/yinmeng-ios/DingDangApp/BsaseClass/Tool/ToolsObject.m b/yinmeng-ios/DingDangApp/BsaseClass/Tool/ToolsObject.m
index 4fd77e9..fc9a780 100644
--- a/yinmeng-ios/DingDangApp/BsaseClass/Tool/ToolsObject.m
+++ b/yinmeng-ios/DingDangApp/BsaseClass/Tool/ToolsObject.m
@@ -19,6 +19,7 @@
 #import "SDImageCache.h"
 #import "RoomEditPassWordView.h"
 #import "AccountInfoStorage.h"
+#import <NIMSDK/NIMSDK.h>
 static NSString *SAVELOGIN = @"LOGINMODEL";
 static NSString *SAVECITYINFO = @"CITYINFO";
 static NSString *SAVELOGINVIDEO = @"LOGINVIDEO";
@@ -701,7 +702,7 @@ static NSString *SAVEROOMCONFIG = @"ROOMCONFIG";
 - (void)jumpToRoomVC:(NSString *)room_id followUser:(RoomUserInfoModel *)followUser{
     [ToolsObject ShowSVProgressHUD:@""];
     AppDelegate *delegate = (AppDelegate*)kAppDelegate;
-    if([ToolsObject isBlankString:room_id].length ==0){
+    if([ToolsObject isBlankString:room_id].length == 0 || room_id == nil){
         [ToolsObject addPopVieToText:@"未找到房间ID"];
     }
     //判断是否已进入房间
@@ -846,6 +847,9 @@ static NSString *SAVEROOMCONFIG = @"ROOMCONFIG";
         [ToolsObject removeUserInfo];
         [[AccountInfoStorage instance] saveTicket:nil];
         [[AccountInfoStorage instance] saveAccountInfo:nil];
+        if ([NIMSDK sharedSDK].loginManager.isLogined) {
+            [[NIMSDK sharedSDK].loginManager logout:nil];
+        }
         [kUserDefaults removeObjectForKey:KYoungPasswordKey];
         
         DDV2LoginVC *loginViewController = [[DDV2LoginVC alloc] init];
diff --git a/yinmeng-ios/DingDangApp/V2Versions/Home/DDV2HomeVC.m b/yinmeng-ios/DingDangApp/V2Versions/Home/DDV2HomeVC.m
index 1e21e6b..f58909e 100644
--- a/yinmeng-ios/DingDangApp/V2Versions/Home/DDV2HomeVC.m
+++ b/yinmeng-ios/DingDangApp/V2Versions/Home/DDV2HomeVC.m
@@ -205,11 +205,11 @@
     self.isClick = YES;
     if (self.isNoCollection) {
         DDRoomPartyModel *model = self.noDataArr[indexPath.item];
-        [[ToolsObject shareTools] jumpToRoomVC:model.room_id followUser:[RoomUserInfoModel new]];
+        [[ToolsObject shareTools] jumpToRoomVC:model.roomId followUser:[RoomUserInfoModel new]];
 
     }else{
         DDRoomPartyModel *model = self.dataArr[indexPath.item];
-        [[ToolsObject shareTools] jumpToRoomVC:model.room_id followUser:[RoomUserInfoModel new]];
+        [[ToolsObject shareTools] jumpToRoomVC:model.roomId followUser:[RoomUserInfoModel new]];
     }
     WeakSelf(ws)
     dispatch_after(dispatch_time(DISPATCH_TIME_NOW, 1*NSEC_PER_SEC), dispatch_get_main_queue(), ^{
diff --git a/yinmeng-ios/DingDangApp/YingMeng/DDGlobalManager/DDGloabalConstant.h b/yinmeng-ios/DingDangApp/YingMeng/DDGlobalManager/DDGloabalConstant.h
new file mode 100644
index 0000000..87dd261
--- /dev/null
+++ b/yinmeng-ios/DingDangApp/YingMeng/DDGlobalManager/DDGloabalConstant.h
@@ -0,0 +1,26 @@
+//
+//  DDGloabalConstant.h
+//  DingDangApp
+//
+//  Created by 触海 on 2023/12/13.
+//
+
+#import <Foundation/Foundation.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+typedef NS_ENUM(NSUInteger, DDConstantKeyType) {
+    DD_Constant_KeyType_NetEase, ///云信的key
+    DD_Constant_KeyType_TRTC,///TRTC key
+    DD_Constant_KeyType_APNSCer,///推送证书的名字
+};
+
+@interface DDGloabalConstant : NSObject
+
+
+/// 获取当前项目中所用到的 type 所对应的 value 的值 type 类型
+NSString * const DD_Constant_KeyWithType(DDConstantKeyType type);
+
+@end
+
+NS_ASSUME_NONNULL_END
diff --git a/yinmeng-ios/DingDangApp/YingMeng/DDGlobalManager/DDGloabalConstant.m b/yinmeng-ios/DingDangApp/YingMeng/DDGlobalManager/DDGloabalConstant.m
new file mode 100644
index 0000000..690106a
--- /dev/null
+++ b/yinmeng-ios/DingDangApp/YingMeng/DDGlobalManager/DDGloabalConstant.m
@@ -0,0 +1,37 @@
+//
+//  DDGloabalConstant.m
+//  DingDangApp
+//
+//  Created by 触海 on 2023/12/13.
+//
+
+#import "DDGloabalConstant.h"
+
+@implementation DDGloabalConstant
+
+NSString * const DD_Constant_KeyWithType(DDConstantKeyType type) {
+BOOL isRelase  = NO;
+#ifdef DEBUG
+    isRelase = NO;
+#else
+    isRelase = YES;
+#endif
+    NSDictionary * dic = @{
+        ///正式环境
+        @(YES):@{
+            @(DD_Constant_KeyType_TRTC)                     : @"1400798783",
+            @(DD_Constant_KeyType_NetEase)                  : @"5e76ec47632d86c30ce18eabfa332b6a",
+            @(DD_Constant_KeyType_APNSCer)                  : @"yinyouApnsRelease",
+        },
+        ///测试环境
+        @(NO):@{
+            @(DD_Constant_KeyType_TRTC)                     : @"1400798783",
+            @(DD_Constant_KeyType_NetEase)                  : @"5e76ec47632d86c30ce18eabfa332b6a",
+            @(DD_Constant_KeyType_APNSCer)                  : @"yinyouApnsDebug",
+        }
+    };
+    NSDictionary * enviroDic = [dic objectForKey:@(isRelase)];
+    return [enviroDic objectForKey:@(type)];
+}
+
+@end
diff --git a/yinmeng-ios/DingDangApp/YingMeng/DDMain/DDNIM/Model/DDCustomAttachmentModel.h b/yinmeng-ios/DingDangApp/YingMeng/DDMain/DDNIM/Model/DDCustomAttachmentModel.h
new file mode 100644
index 0000000..2b61483
--- /dev/null
+++ b/yinmeng-ios/DingDangApp/YingMeng/DDMain/DDNIM/Model/DDCustomAttachmentModel.h
@@ -0,0 +1,19 @@
+//
+//  DDCustomAttachmentModel.h
+//  DingDangApp
+//
+//  Created by 触海 on 2023/12/13.
+//
+
+#import <Foundation/Foundation.h>
+#import <NIMSDK/NIMSDK.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface DDCustomAttachmentModel : NSObject<NIMCustomAttachment>
+@property (nonatomic,assign) int first;
+@property (nonatomic,assign) int second;
+@property (nonatomic, strong) id data;
+@end
+
+NS_ASSUME_NONNULL_END
diff --git a/yinmeng-ios/DingDangApp/YingMeng/DDMain/DDNIM/Model/DDCustomAttachmentModel.m b/yinmeng-ios/DingDangApp/YingMeng/DDMain/DDNIM/Model/DDCustomAttachmentModel.m
new file mode 100644
index 0000000..801281d
--- /dev/null
+++ b/yinmeng-ios/DingDangApp/YingMeng/DDMain/DDNIM/Model/DDCustomAttachmentModel.m
@@ -0,0 +1,16 @@
+//
+//  DDCustomAttachmentModel.m
+//  DingDangApp
+//
+//  Created by 触海 on 2023/12/13.
+//
+
+#import "DDCustomAttachmentModel.h"
+#import "NSObject+DDExtension.h"
+
+@implementation DDCustomAttachmentModel
+- (NSString *)encodeAttachment {
+    return [self dd_toJSONString];
+}
+
+@end
diff --git a/yinmeng-ios/DingDangApp/YingMeng/DDMain/DDNIM/Tool/DDRegisterCustomDecoder.h b/yinmeng-ios/DingDangApp/YingMeng/DDMain/DDNIM/Tool/DDRegisterCustomDecoder.h
new file mode 100644
index 0000000..ab3c592
--- /dev/null
+++ b/yinmeng-ios/DingDangApp/YingMeng/DDMain/DDNIM/Tool/DDRegisterCustomDecoder.h
@@ -0,0 +1,17 @@
+//
+//  DDRegisterCustomDecoder.h
+//  DingDangApp
+//
+//  Created by 触海 on 2023/12/13.
+//
+
+#import <Foundation/Foundation.h>
+#import <NIMSDK/NIMSDK.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface DDRegisterCustomDecoder : NSObject<NIMCustomAttachmentCoding>
+
+@end
+
+NS_ASSUME_NONNULL_END
diff --git a/yinmeng-ios/DingDangApp/YingMeng/DDMain/DDNIM/Tool/DDRegisterCustomDecoder.m b/yinmeng-ios/DingDangApp/YingMeng/DDMain/DDNIM/Tool/DDRegisterCustomDecoder.m
new file mode 100644
index 0000000..99c166f
--- /dev/null
+++ b/yinmeng-ios/DingDangApp/YingMeng/DDMain/DDNIM/Tool/DDRegisterCustomDecoder.m
@@ -0,0 +1,54 @@
+//
+//  DDRegisterCustomDecoder.m
+//  DingDangApp
+//
+//  Created by 触海 on 2023/12/13.
+//
+
+#import "DDRegisterCustomDecoder.h"
+#import "DDCustomAttachmentModel.h"
+
+@implementation DDRegisterCustomDecoder
+
+- (id<NIMCustomAttachment>)decodeAttachment:(NSString *)content {
+    id<NIMCustomAttachment> custom_attachment;
+    NSData *data = [content dataUsingEncoding:NSUTF8StringEncoding];
+    if (!data) {
+        return custom_attachment;
+    }
+    
+    NSDictionary *dict_json = [NSJSONSerialization JSONObjectWithData:data options:0 error:nil];
+    if ([dict_json isKindOfClass:[NSDictionary class]]) {
+        int first = [dict_json[@"first"] intValue];
+        int second = [dict_json[@"second"] intValue];
+        NSDictionary *data = dict_json[@"data"];
+        if ([data isKindOfClass:[NSString class]]) {
+            data = [self dd_dictionaryWithJsonString:(NSString *)data];
+        }
+        if ([data isKindOfClass:[NSDictionary class]]) {
+            DDCustomAttachmentModel *attachment = [[DDCustomAttachmentModel alloc] init];
+            attachment.first = (short)first;
+            attachment.second = (short)second;
+            attachment.data = data;
+            return attachment;
+        }
+    }
+    return custom_attachment;
+}
+
+//json格式字符串转字典：
+- (NSDictionary *)dd_dictionaryWithJsonString:(NSString *)jsonString {
+    if (jsonString == nil) return nil;
+
+    NSData *jsonData = [jsonString dataUsingEncoding:NSUTF8StringEncoding];
+    NSError *err;
+    NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:jsonData
+                                                        options:NSJSONReadingMutableContainers
+                                                          error:&err];
+
+    if(err) return nil;
+    return dic;
+
+}
+
+@end