Android WebSocket实现推送 以及Android 10 推送的展示和点击事件

首先第一步引入websocket
 

implementation "org.java-websocket:Java-WebSocket:1.5.1"

第二步 

public class JWebSocketClient extends WebSocketClient {
    public JWebSocketClient(URI serverUri) {
        super(serverUri, new Draft_6455());
    }

    @Override
    public void onOpen(ServerHandshake handshakedata) {
        Log.e("JWebSocketClient", "onOpen()");
    }

    @Override
    public void onMessage(String message) {
        Log.e("JWebSocketClient", message);
    }

    @Override
    public void onClose(int code, String reason, boolean remote) {
        Log.e("JWebSocketClient", "onClose()");
    }

    @Override
    public void onError(Exception ex) {
        Log.e("JWebSocketClient", ex.getMessage());
    }


}

 第三步

我是直接放在 Application中了 

private JWebSocketClient client;
private URI uri;

public class BaseApplication extends Application {
   
   

@Override
public void onCreate() {
    super.onCreate();

 //推送 也可以做即时通讯
uri= URI.create("ws://这边放后台给你的地址");
 client= new JWebSocketClient(uri) {
     @Override
     public void onMessage(String message) {
         //message就是接收到的消息  可以让后台给你发送json，解析使用
         Log.e("JWebSClientService", message);
         sendChatMsg(message);
     }
 };
//开启连接
 connect();

//Android 10要设置通知类型

//设置通知类型  我这边设置两个 根据不同的需求可以添加自己的设置  使用前要记得开启通知权限  
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
    String channelId = "chat";
    String channelName = "聊天消息";
    int importance = NotificationManager.IMPORTANCE_HIGH;
    createNotificationChannel(channelId, channelName, importance);

    channelId = "subscribe";
    channelName = "订阅消息";
    importance = NotificationManager.IMPORTANCE_DEFAULT;
    createNotificationChannel(channelId, channelName, importance);
}

}

@TargetApi(Build.VERSION_CODES.O)
private void createNotificationChannel(String channelId, String channelName, int importance) {
    NotificationChannel channel = new NotificationChannel(channelId, channelName, importance);
    NotificationManager notificationManager = (NotificationManager) getSystemService(
            NOTIFICATION_SERVICE);
    notificationManager.createNotificationChannel(channel);
}

//WebSocket开启连接
private void connect(){
    try {
        client.connectBlocking();
    } catch (InterruptedException e) {
        e.printStackTrace();
    }
}

private  int  requestCode=0; 
//看使用的地方，两个地方，如果使用的地方，你写的是固定值，那么第一个地方会导致你推送得到的信息被复制，第二个地方，只会显示一条推送 。文笔不好， 如果不理解，可以直接把这两个地方分别写成固定值试试
public void sendChatMsg(String msg) {
    requestCode++;
    Intent intent = new Intent(this, NotificationClickReceiver.class);
    Log.e("fhxx","这是我准备发送的"+msg +" -----  >"+requestCode);
    intent.putExtra("msg",msg);
    PendingIntent broadcast = PendingIntent.getBroadcast(this, requestCode, intent, PendingIntent.FLAG_UPDATE_CURRENT);
    NotificationManager manager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
    Notification notification = new NotificationCompat.Builder(this, "chat")
            .setContentTitle("收到一条聊天消息")
            .setContentText(msg)
            .setWhen(System.currentTimeMillis())
            .setSmallIcon(R.mipmap.icon_logo)
            .setLargeIcon(BitmapFactory.decodeResource(getResources(), R.mipmap.icon_logo))
            .setDefaults(Notification.GROUP_ALERT_ALL) //设置默认的提示音，振动方式，灯光
            .setAutoCancel(true)
            .setContentIntent(broadcast)
            .build();
    manager.notify(requestCode, notification);

}

}

public class NotificationClickReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {

        String msg = intent.getStringExtra("msg");
        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        Log.e("fhxx","这是我收到的-"+msg);
    }
}

 到此为止，就可以实现推送的基本功能。