Question

从我的PI中，我通过pubnub发送一条消息，其中包含已被刻录的Leds的序列。很奇怪我在Android应用程序中收到了不同的东西。

#! /usr/bin/env python
#
import random
import time
import sys
from time import sleep
import RPi.GPIO as GPIO
from pubnub import Pubnub


pubnub = Pubnub(publish_key='pub-c-da666f8d070cace', 
subscribe_key='sub-c-93dab7fe')

CHANNEL_IN = 'in'
CHANNEL_OUT = 'out'

def blink_leds():
    leds = [18,17,27,22]
    random.shuffle(leds)
    volgorde = ', '.join(str(led) for led in leds)
    GPIO.setwarnings(False)
    GPIO.setmode(GPIO.BCM)
    for led in leds:
        GPIO.setup( led, GPIO.OUT)
    for led in leds:
        for state in [True,False]:
            GPIO.output(led, state)
            sleep(0.5)
    return volgorde

def run():
    print("blinking leds")
    volgorde = blink_leds()
    print("sending code")
    print(volgorde)
    pubnub.publish(CHANNEL_IN,volgorde)

def stop():
    GPIO.cleanup()
    pubnub.unsubscribe(CHANNEL_OUT)
def callback(message,channel):
    if 'Inorde' in str(message):
        print("Inorde")
        run()
    if 'Fout' in str(message):
        print("Fout")
        stop()
    if 'Start' in str(message):
        print("starting")
        run()

pubnub.subscribe(channels=CHANNEL_OUT, callback=callback)
pubnub.publish(CHANNEL_IN,"Start")

我做错了什么？

enter image description here

我的活动：包be.thomasmore.sequincepi;

import android.app.Activity;
import android.graphics.Color;
import android.graphics.Point;
import android.os.Bundle;
import android.util.DisplayMetrics;
import android.util.Log;
import android.view.*;
import android.widget.AbsoluteLayout;
import android.widget.Button;
import android.widget.TextView;

import com.pubnub.api.*;

import org.json.*;
import java.util.HashMap;
import java.util.Random;

public class play extends Activity {
    private Pubnub mPubNub;
    public static final String PUBLISH_KEY = "pub-c-da6362de-5562-43a7-9b0e-66f8d070cace";
    public static final String SUBSCRIBE_KEY = "sub-c-935fbdb2-df94-11e5-8905-02ee2ddab7fe";
    public static final String CHANNEL_IN = "in";
    public static final String CHANNEL_OUT = "out";
    Button btn1;
    Button btn2;
    Button btn3;
    Button btn4;
    TextView txtHaal;
    public String volgorde = "";
    public String antwoord = "";
    public int score = 0;
    TextView txtScore;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.play);
        btn1 = (Button) findViewById(R.id.button1);
        btn2 = (Button) findViewById(R.id.button2);
        btn3 = (Button) findViewById(R.id.button3);
        btn4 = (Button) findViewById(R.id.button4);
        txtHaal = (TextView) findViewById(R.id.txtHaal);
        txtScore = (TextView) findViewById(R.id.txtScore);
        initPubNub();
        knoppen();
    }

      private void knoppen() {
        btn1.setOnClickListener(new Button.OnClickListener() {
            @Override
            public void onClick(View v) {
                Button button = (Button) v;
                button.setEnabled(false);
                antwoord += "1";
                controleer();
            }
        });
        btn2.setOnClickListener(new Button.OnClickListener() {
            @Override
            public void onClick(View v) {
                Button button = (Button) v;
                button.setEnabled(false);
                antwoord += "2";
                controleer();
            }
        });
        btn3.setOnClickListener(new Button.OnClickListener() {
            @Override
            public void onClick(View v) {
                Button button = (Button) v;
                button.setEnabled(false);
                antwoord += "3";
                controleer();
            }
        });
        btn4.setOnClickListener(new Button.OnClickListener() {
            @Override
            public void onClick(View v) {
                Button button = (Button) v;
                button.setEnabled(false);
                antwoord += "4";
                controleer();
            }
        });
        runOnUiThread(new Runnable() {
            @Override
            public void run() {
                btn1.setEnabled(false);
                btn2.setEnabled(false);
                btn3.setEnabled(false);
                btn4.setEnabled(false);
            }
        });
    }


    public void controleer() {
        if (antwoord.length() == 4) {
            if (antwoord.equals(juisteNummers(volgorde))) {
                publish("Inorde");
                score++;
                String.valueOf(score);

            }else{
                txtHaal.setText("Fout");
                publish("Fout");
            }
        }
    }

    public void setTextView(final TextView textView, final String text) {
        runOnUiThread(new Runnable() {
            @Override
            public void run() {
                textView.setText(text);
            }
        });
    }

    public void initPubNub() {
        this.mPubNub = new Pubnub(
                PUBLISH_KEY,
                SUBSCRIBE_KEY);
        this.mPubNub.setUUID("SequencePI");
        subscribe();
    }

    public void subscribe() {
        try {
            this.mPubNub.subscribe(CHANNEL_IN, new Callback() {
                @Override
                public void connectCallback(String channel, Object message) {
                    Log.d("PUBNUB", "SUBSCRIBE : CONNECT on channel:" + channel
                            + " : " + message.getClass() + " : "
                            + message.toString());
                }

                @Override
                public void disconnectCallback(String channel, Object message) {
                    Log.d("PUBNUB", "SUBSCRIBE : DISCONNECT on channel:" + channel
                            + " : " + message.getClass() + " : "
                            + message.toString());
                }

                public void reconnectCallback(String channel, Object message) {
                    Log.d("PUBNUB", "SUBSCRIBE : RECONNECT on channel:" + channel
                            + " : " + message.getClass() + " : "
                            + message.toString());

                }

                @Override
                public void successCallback(String channel, Object message) {
                    Log.d("PUBNUB", "SUBSCRIBE : " + channel + " : "
                            + message.getClass() + " : " + message.toString());

                    //juisteNummers(message.toString());
                    if(message.toString().contains("Start")){
                        publish("Start");
                    }else{
                        volgorde = message.toString();
                        antwoord ="";
                        runOnUiThread(new Runnable() {
                            @Override
                            public void run() {
                                btn1.setEnabled(true);
                                btn2.setEnabled(true);
                                btn3.setEnabled(true);
                                btn4.setEnabled(true);
                            }
                        });
                    }
                }

                @Override
                public void errorCallback(String channel, PubnubError error) {
                    Log.d("PUBNUB", "SUBSCRIBE : ERROR on channel " + channel
                            + " : " + error.toString());
                }
            });

        } catch (Exception e) {
            e.printStackTrace();
        }

    }

    public void publish(String done) {
        JSONObject js = new JSONObject();
        try {
            js.put(CHANNEL_OUT, done);
        } catch (JSONException e) {
            e.printStackTrace();
        }
        Callback callback = new Callback() {
            public void successCallback(String channel, Object response) {
                Log.d("PUBNUB", response.toString());
            }

            public void errorCallback(String channel, PubnubError error) {
                Log.d("PUBNUB", error.toString());
            }

        };
        this.mPubNub.publish(CHANNEL_OUT, js, callback);
    }

    public String juisteNummers(String volgorde) {
        String vol = "";
        HashMap<String,String> omzetting = new HashMap<>();
        omzetting.put("17","1");
        omzetting.put("18","2");
        omzetting.put("22","3");
        omzetting.put("27","4");
        for (int i = 0;i<=12;i+=4) {
            vol += omzetting.get(volgorde.substring(i, i + 2));
        }
        return vol;
    }


}

Answer 1

您的Python代码中的pub / sub键与Android代码中的pub / sub键不匹配。而且你不应该公开发布你的全部密钥。

Pubnub发送不等于接收？

1 个答案: