环信的集成

1、注册

1.打开首页

https://www.easemob.com/

2.点击注册，选择注册即时通信云

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3.输入注册信息

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4.选择个人开发者

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5.去邮箱激活账号

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6.登录

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7.登录后，有一个默认的app

8.在这个默认的app中新建两个user

7.在应用信息界面，点击创建

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8.创建应用

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注册模式选择授权模式

2、集成

1.下载demo

2.新建工程

3.将easy导入，注意，android studio最新版默认自持androidx

4.新工程的app module需要依赖easyui

5.

<uses-permission android:name="android.permission.VIBRATE" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.RECORD_AUDIO" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.GET_TASKS" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />

6.新工程的manifes中需要添加：

<meta-data
    android:name="EASEMOB_APPKEY"
    android:value="1106201125030909#demo" /> <!-- 声明SDK所需的service SDK核心功能 -->
<service
    android:name="com.hyphenate.chat.EMChatService"
    android:exported="true" />
<service
    android:name="com.hyphenate.chat.EMJobService"
    android:exported="true"
    android:permission="android.permission.BIND_JOB_SERVICE" /> <!-- 声明SDK所需的receiver -->
<receiver android:name="com.hyphenate.chat.EMMonitorReceiver">
    <intent-filter>
        <action android:name="android.intent.action.PACKAGE_REMOVED" />
        <data android:scheme="package" />
    </intent-filter>
    <!-- 可选filter -->
    <intent-filter>
        <action android:name="android.intent.action.BOOT_COMPLETED" />
        <action android:name="android.intent.action.USER_PRESENT" />
    </intent-filter>
</receiver>

注意app key需要修改

7.新建App类，继承于Application

8.App中做初始化

EMOptions options = new EMOptions();
//EaseUI初始化
if (EaseUI.getInstance().init(getApplicationContext(), options)) {
    //在做打包混淆时，关闭debug模式，避免消耗不必要的资源
    EMClient.getInstance().setDebugMode(true);
    //EaseUI初始化成功之后再去调用注册消息监听的代码
}

9.权限

10.

Cleartext HTTP traffic，可以讲target sdk 改为26

android:requestLegacyExternalStorage="true"
android:usesCleartextTraffic="true"

compileOptions {
    sourceCompatibility JavaVersion.VERSION_1_8
    targetCompatibility JavaVersion.VERSION_1_8
}

11、登录

    private void login() {
        EMClient.getInstance().login("u1", "123", new EMCallBack(){
            @Override
            public void onSuccess() {
                Log.i("Simon", "login onSuccess");
            }

            @Override
            public void onError(int code, String error) {
                Log.i("Simon", "login onError: " + code + " msg: " + error);
            }

            @Override
            public void onProgress(int progress, String status) {

            }
        });
    }

12、登出

        EMClient.getInstance().logout(true, new EMCallBack() {
            @Override
            public void onSuccess() {
                Log.i("Simon", "logout onSuccess");
            }

            @Override
            public void onError(int code, String error) {
                Log.i("Simon", "logout onError: " + code + " msg: " + error);
            }

            @Override
            public void onProgress(int progress, String status) {

            }
        });

13、打开会话页面

Intent intent = new Intent(MainActivity.this, ChatActivity.class);
        //username为对方的环信id
        intent.putExtra(EaseConstant.EXTRA_USER_ID, "u2");
        startActivity(intent);

public class ChatActivity extends AppCompatActivity {
    EaseChatFragment chatFragment;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_chat);
        //use EaseChatFratFragment
        chatFragment = new EaseChatFragment();
        //pass parameters to chat fragment
        chatFragment.setArguments(getIntent().getExtras());
        getSupportFragmentManager().beginTransaction().add(R.id.container, chatFragment).commit();
    }
}

14、

public class ConversationListFragment extends EaseConversationListFragment {
    @Override
    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);

        conversationListView = view.findViewById(R.id.list);
        conversationListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {

            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                EMConversation conversation = conversationListView.getItem(position);
                String username = conversation.conversationId();
                if (username.equals(EMClient.getInstance().getCurrentUser()))
                    Toast.makeText(getActivity(), R.string.Cant_chat_with_yourself, Toast.LENGTH_SHORT).show();
                else {
                    // start chat acitivity
                    Intent intent = new Intent(getActivity(), ChatActivity.class);
                    if(conversation.isGroup()){
                        if(conversation.getType() == EMConversation.EMConversationType.ChatRoom){
                            // it's group chat
                            intent.putExtra(EaseConstant.EXTRA_CHAT_TYPE, EaseConstant.CHATTYPE_CHATROOM);
                        }else{
                            intent.putExtra(EaseConstant.EXTRA_CHAT_TYPE, EaseConstant.CHATTYPE_GROUP);
                        }

                    }
                    // it's single chat
                    intent.putExtra(EaseConstant.EXTRA_USER_ID, username);
                    startActivity(intent);
                }
            }
        });
    }
}

public class ConversationListActivity extends AppCompatActivity {
    ConversationListFragment mConversationListFragment;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_conversation_list);


        //use EaseChatFratFragment
        mConversationListFragment = new ConversationListFragment();
        getSupportFragmentManager().beginTransaction().add(R.id.container, mConversationListFragment).commit();
    }
}

参考：
http://docs-im.easemob.com/im/android/other/easeuiintegration#%E5%88%9D%E5%A7%8B%E5%8C%96easeui