300字范文 > Android聊天软件开发（基于网易云IM即时通讯）——发送文本消息（四）

Android聊天软件开发（基于网易云IM即时通讯）——发送文本消息（四）

时间：2022-04-27 01:18:26

发送界面

activity_send_message.xml

<?xml version="1.0" encoding="utf-8"?><FrameLayout xmlns:android="/apk/res/android"android:layout_width="match_parent"android:layout_height="match_parent"><LinearLayoutandroid:layout_width="match_parent"android:layout_height="match_parent"android:gravity="center_horizontal"android:orientation="vertical"><LinearLayoutandroid:layout_width="match_parent"android:layout_height="44dp"android:orientation="horizontal"android:gravity="center_vertical"android:background="@color/deepskyblue"><LinearLayoutandroid:id="@+id/ll_return"android:layout_width="44sp"android:layout_height="44sp"android:gravity="center_vertical"><ImageViewandroid:layout_width="24sp"android:layout_height="24sp"android:src="@drawable/return1"android:layout_marginStart="20dp"android:contentDescription="@string/tv_icon_des"/></LinearLayout><TextViewandroid:layout_width="wrap_content"android:layout_height="wrap_content"android:text="@string/btn_send_message"android:textColor="@color/white"android:textSize="20sp"android:layout_marginStart="20dp"/></LinearLayout><LinearLayoutandroid:layout_width="match_parent"android:layout_height="wrap_content"android:orientation="vertical"><EditTextandroid:id="@+id/ed_send_text"android:layout_width="match_parent"android:layout_height="wrap_content" /><Buttonandroid:id="@+id/btn_send_text"android:layout_width="wrap_content"android:layout_height="wrap_content"android:text="@string/btn_send_message" /><TextViewandroid:layout_width="wrap_content"android:layout_height="wrap_content"android:text="消息接收显示" /><TextViewandroid:id="@+id/tv_receive_message"android:layout_width="wrap_content"android:layout_height="wrap_content" /></LinearLayout></LinearLayout></FrameLayout>

SendMessageActivity

package .chat.message;import ponentName;import android.content.Intent;import android.content.ServiceConnection;import android.os.Bundle;import android.os.IBinder;import android.support.v7.app.AppCompatActivity;import android.view.View;import android.widget.Button;import android.widget.EditText;import android.widget.LinearLayout;import android.widget.TextView;import ease.nimlib.sdk.NIMClient;import ease.nimlib.sdk.RequestCallback;import ease.nimlib.sdk.msg.MessageBuilder;import ease.nimlib.sdk.msg.MsgService;import ease.nimlib.sdk.msg.constant.SessionTypeEnum;import ease.nimlib.sdk.msg.model.IMMessage;import .chat.R;import .chat.service.IMService;import .chat.utils.ToastUtil;public class SendMessageActivity extends AppCompatActivity implements View.OnClickListener {private static IMService mImService;private LinearLayout mLlReturn;private EditText mEdSendText;/*** 发消息*/private Button mBtnSendText;private static TextView mTvReceiveMessage;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_send_message);initView();init();}private void init() {// 绑定服务Intent service = new Intent(SendMessageActivity.this, IMService.class);bindService(service, mMyServiceConnection, BIND_AUTO_CREATE);}@Overridepublic void onDestroy() {super.onDestroy();// 解绑服务if (mMyServiceConnection != null) {unbindService(mMyServiceConnection);}}MyServiceConnection mMyServiceConnection = new MyServiceConnection();private void initView() {mLlReturn = (LinearLayout) findViewById(R.id.ll_return);mEdSendText = (EditText) findViewById(R.id.ed_send_text);mBtnSendText = (Button) findViewById(R.id.btn_send_text);mBtnSendText.setOnClickListener(this);mTvReceiveMessage = (TextView) findViewById(R.id.tv_receive_message);}@Overridepublic void onClick(View v) {switch (v.getId()) {default:break;case R.id.ll_return:finish();break;case R.id.btn_send_text:final String content = mEdSendText.getText().toString();//消息文本String account = "1";//目前这里是写死的账号SessionTypeEnum type = SessionTypeEnum.P2P;//会话类型final IMMessage textMessage = MessageBuilder.createTextMessage(account, type, content);NIMClient.getService(MsgService.class).sendMessage(textMessage, false).setCallback(new RequestCallback<Void>() {@Overridepublic void onSuccess(Void param) {ToastUtil.toastOnUiThread(SendMessageActivity.this,"发送成功");}@Overridepublic void onFailed(int code) {}@Overridepublic void onException(Throwable exception) {}});mEdSendText.setText("");break;}}public static void updateData(String message){mTvReceiveMessage.setText(message);}class MyServiceConnection implements ServiceConnection {@Overridepublic void onServiceConnected(ComponentName name, IBinder service) {System.out.println("--------------onServiceConnected--------------");IMService.MyBinder binder = (IMService.MyBinder) service;mImService = binder.getService();}@Overridepublic void onServiceDisconnected(ComponentName name) {System.out.println("--------------onServiceDisconnected--------------");}}}

接收消息

我这里使用服务来处理消息的接收

IMService

package .chat.service;import android.app.Service;import android.content.Intent;import android.os.Binder;import android.os.IBinder;import android.util.Log;import com.google.gson.Gson;import ease.nimlib.sdk.NIMClient;import ease.nimlib.sdk.Observer;import ease.nimlib.sdk.friend.model.AddFriendNotify;import ease.nimlib.sdk.msg.MsgServiceObserve;import ease.nimlib.sdk.msg.SystemMessageObserver;import ease.nimlib.sdk.msg.constant.MsgTypeEnum;import ease.nimlib.sdk.msg.constant.SystemMessageType;import ease.nimlib.sdk.msg.model.IMMessage;import ease.nimlib.sdk.msg.model.SystemMessage;import java.util.List;import .chat.message.MessageFragment;import .chat.message.SendMessageActivity;import .chat.utils.ACache;public class IMService extends Service {private static ACache aCache;private Gson gson;@Overridepublic IBinder onBind(Intent intent) {return new MyBinder();}public class MyBinder extends Binder {// 返回server的实例public IMService getService() {return IMService.this;}}@Overridepublic void onCreate() {super.onCreate();aCache = ACache.get(this);gson = new Gson();NIMClient.getService(SystemMessageObserver.class).observeReceiveSystemMsg(systemMessageObserver, true);NIMClient.getService(MsgServiceObserve.class).observeReceiveMessage(incomingMessageObserver, true);}@Overridepublic void onDestroy() {super.onDestroy();NIMClient.getService(SystemMessageObserver.class).observeReceiveSystemMsg(systemMessageObserver, false);NIMClient.getService(MsgServiceObserve.class).observeReceiveMessage(incomingMessageObserver, false);}Observer<SystemMessage> systemMessageObserver = new Observer<SystemMessage>() {@Overridepublic void onEvent(SystemMessage systemMessage) {if (systemMessage.getType() == SystemMessageType.AddFriend) {AddFriendNotify attachData = (AddFriendNotify) systemMessage.getAttachObject();if (attachData != null) {// 针对不同的事件做处理if (attachData.getEvent() == AddFriendNotify.Event.RECV_ADD_FRIEND_DIRECT) {// 对方直接添加你为好友} else if (attachData.getEvent() == AddFriendNotify.Event.RECV_AGREE_ADD_FRIEND) {// 对方通过了你的好友验证请求} else if (attachData.getEvent() == AddFriendNotify.Event.RECV_REJECT_ADD_FRIEND) {// 对方拒绝了你的好友验证请求} else if (attachData.getEvent() == AddFriendNotify.Event.RECV_ADD_FRIEND_VERIFY_REQUEST) {// 对方请求添加好友，一般场景会让用户选择同意或拒绝对方的好友请求。// 通过message.getContent()获取好友验证请求的附言}}}}};private Observer<List<IMMessage>> incomingMessageObserver =new Observer<List<IMMessage>>() {@Overridepublic void onEvent(List<IMMessage> messages) {// 处理新收到的消息，为了上传处理方便，SDK 保证参数 messages 全部来自同一个聊天对象。for (IMMessage message : messages) {Log.i("message", "onEvent===========: " + message.getContent());if (message.getMsgType() == MsgTypeEnum.text) {SendMessageActivity.updateData(message.getContent());}}}};}

使用了服务，记得在AndroidManifest.xml注册一下

<service android:name=".service.IMService" />

记得在LoginActivity里，登录后启动一下

Intent server = new Intent(LoginActivity.this,IMService.class);startService(server);

项目下载地址：Android聊天软件开发（基于网易云IM即时通讯）——第三部分_安卓开发聊天-Android代码类资源-CSDN下载

接单

小编承接外包，有意者可加

QQ：1944300940

微信号：wxid_g8o2y9ninzpp12

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