Question

我正在尝试编译从pubnub网站下载的Android位置广播代码，但我在开始分享我的位置时收到此错误

10-03 21：09：44.219 31344-31344 / io.atlanticlab.pubnubmaptracker E / AndroidRuntime：FATAL EXCEPTION：main 流程：io.atlanticlab.pubnubmaptracker，PID：31344 显示java.lang.NullPointerException 在java.util.Hashtable.put（Hashtable.java:442）在com.pubnub.api.PubnubCore.publish（未知来源）在com.pubnub.api.Pubnub.publish（未知来源）在io.atlanticlab.pubnubmaptracker.PubNubManager.broadcastLocation（PubNubManager.java:47）在io.atlanticlab.pubnubmaptracker.GMapsShareLocationActivity.onLocationChanged（GMapsShareLocationActivity.java:128）在com.google.android.gms.internal.nj $ a.handleMessage（未知来源）在android.os.Handler.dispatchMessage（Handler.java:102）在android.os.Looper.loop（Looper.java:154）在android.app.ActivityThread.main（ActivityThread.java:6236） at java.lang.reflect.Method.invoke（Native Method）在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run（ZygoteInit.java:891）在com.android.internal.os.ZygoteInit.main（ZygoteInit.java:781）

这是我的PubNubManager.class

public class PubNubManager {

public final static String TAG = "PUBNUB";

public static Pubnub startPubnub() {
    Log.d(TAG, "Initializing PubNub");
    return new Pubnub("demo", "demo");
}

public static void subscribe(Pubnub mPubnub, String channelName, Callback subscribeCallback) {
    // Subscribe to channel
    try {
        mPubnub.subscribe(channelName, subscribeCallback);
        Log.d(TAG, "Subscribed to Channel");
    } catch (PubnubException e) {
        Log.e(TAG, e.toString());
    }
}

public static void broadcastLocation(Pubnub pubnub, String channelName, double latitude,
                                     double longitude, double altitude) {
    JSONObject message = new JSONObject();
    try {
        message.put("lat", latitude);
        message.put("lng", longitude);
        message.put("alt", altitude);
    } catch (JSONException e) {
        Log.e(TAG, e.toString());
    }
    Log.d(TAG, "Sending JSON Message: " + message.toString());
    pubnub.publish(channelName, message, publishCallback);
}

public static Callback publishCallback = new Callback() {

    @Override
    public void successCallback(String channel, Object response) {
        Log.d("PUBNUB", "Sent Message: " + response.toString());
    }

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

}

以下是整个代码的链接 link

运行Android位置广播代码

0 个答案: