Develop Reference

Deleting a message from pubnub history

I want to delete the message from history in Pubnub and I am using this code
AppController.pubNub.deleteMessages()
.channels(Arrays.asList(Constants.channelAtLogin+chat_user_id))
.start(result.getMessages().get(i).getTimetoken())
.end(result.getMessages().get(i).getTimetoken())
.async(new PNCallback<PNDeleteMessagesResult>() {
#Override
public void onResponse(PNDeleteMessagesResult result, PNStatus status) {
Log.d("delete_message",result.toString());
}
});
But message is not deleted . Please help.

It seems like you are trying to show the result variable from your call which shouldn't give any result. The proper way to check if you're getting an error is to log the status. In other words, the code you're using above in essence is the correct code and is the one supported by PubNub.
pubnub.deleteMessages()
.channels(Arrays.asList("channel_1", "channel_2"))
.start(1460693607379L)
.end(1460893617271L)
.async(new PNCallback<PNDeleteMessagesResult>() {
#Override
public void onResponse(PNDeleteMessagesResult result, PNStatus status) {
// The deleteMessages() method does not return actionable data, be sure to check the status
// object on the outcome of the operation by checking the status.isError().
Log.d("Message_Deleted", status.isError().toString());
}
});
If it isn't working the next step is to verify the data from the variables you are passing in.

LibGDX http request not working

I want to send a String message to database when user presses a specific button in the LibGDX game I am designing for android. How do I go about doing that? Following is the code I tried. But it does not work.
Net.HttpRequest httpRequest = new Net.HttpRequest();
httpRequest.setMethod("POST");
httpRequest.setUrl("URL is here");
httpRequest.setContent("INSERT INTO `game_table` (`Button`) VALUES ('Button 1 Pressed')");
Net.HttpResponseListener httpResponseListener = new Net.HttpResponseListener() {
#Override
public void handleHttpResponse(Net.HttpResponse httpResponse) {
Gdx.app.log("Log httpResponse", httpResponse.getResultAsString());
}
#Override
public void failed(Throwable t) {
}
#Override
public void cancelled() {
}
};
Gdx.net.sendHttpRequest(httpRequest,httpResponseListener);
Log does not provide anything in android monitor. I also tried using AsyncTask and without AsyncTask to implement this code. But neither works.
Am I missing something? If so could you give me small code snippet that will work?

You don't need to use an AsyncTask, libGDX' HTTPRequest is async out of the box.
You did not log anything if the request fails or is cancelled so probably that's the case.

How would you write a test for this method using Mockito?

Please assist in this. I can't seem to create a suitable test for this method:
protected void startInterfacing() {
mLiveAuthClient.login(mView.context(), Arrays.asList(SCOPES), new LiveAuthListener() {
#Override
public void onAuthComplete(final LiveStatus liveStatus, final LiveConnectSession liveConnectSession,
Object o) {
// Login successful and user consented, now retrieve user ID and connect with backend server
getUserIdAndConnectWithBackendServer(liveConnectSession, mLiveAuthClient);
}
#Override
public void onAuthError(LiveAuthException e, Object o) {
// We failed to authenticate with auth service... show error
if (e.getError().equals("access_denied") ||
e.getMessage().equals("The user cancelled the login operation.")) {
// When user cancels in either the login or consent page, we need to log the user out to enable
// the login screen again when trying to connect later on
logUserOut(mLiveAuthClient, false);
} else {
onErrorOccured();
}
}
});
}
I'll explain abit what goes on here:
I'm trying to authenticate my client and log into OneDrive.
The method starts with a call to the Live SDK's login method. That SDK object is given to me from outside this class. So I can basically mock it.
Here's what I'm struggling with:
I do not need to test the call to the login method because it is not mine. I do need to test the call to getUserIdAndConnectWithBackendServer() inside onAuthComplete. But this method requires a liveConnectSession object. How do I provide that? It is given to me on the onAuthComplete method.
How do I mock the calls to onAuthComplete and onAuthError? I read about ArgumentCaptor but when I use that, I need to provide the arguments to those methods when I call the actual method.
For instance, argument.getValue().onAuthComplete() requires me to add arguments to this call. What do I actually provide here?
Here is the next method which is roughly the same but has its own issues:
protected void getUserIdAndConnectWithBackendServer(final LiveConnectSession liveConnectSession, final LiveAuthClient
authClient) {
final LiveConnectClient connectClient = new LiveConnectClient(liveConnectSession);
connectClient.getAsync("me", new LiveOperationListener() {
#Override
public void onComplete(LiveOperation liveOperation) {
// We got a result. Check for errors...
JSONObject result = liveOperation.getResult();
if (result.has(ERROR)) {
JSONObject error = result.optJSONObject(ERROR);
String code = error.optString(CODE);
String message = error.optString(MESSAGE);
onErrorOccured();
} else {
connectWithBackend(result, liveConnectSession, authClient);
}
}
#Override
public void onError(LiveOperationException e, LiveOperation liveOperation) {
// We failed to retrieve user information.... show error
onErrorOccured();
logUserOut(authClient, false);
}
});
}
In here I would like to mock the JSONObject for instance. But how do I call the onComplete method, or the onError method. And what would I provide as the arguments the methods provide me with. LiveOperation for instance?
Thank you!!

The solution I eventually used was to use mockito's doAnswer() structure.
This enabled me to get the callback argument and call one of its methods.
Another solution was to use an ArgumentCator.

AndroidAsync Socket.IO receive callback value

I'm trying to build an application for Android using this library: https://github.com/koush/AndroidAsync and I was trying to receive a callback value from the server like this but the app crashes:
client.emit("callbackTry", new Acknowledge() {
#Override
public void acknowledge(JSONArray arg0) {
Log.e(TAG,"acknowledge: "+ arg0);
}
});
I leave you the server-side:
socket.on('callbackTry', function (callback) {
console.log(callback);
var hello = "Hello";
callback(hello);
});
How can I return the data back to the client?

I found a solution myself which consists on changing emit method to emitEvent. Hope it really help someone else too.

Android/Java: How do i implement AsyncTask?

I've made an app that sends a request to a webserver in a specified interval and gets XML data. It then parses the XML data, gets information from the phone (text messages, contacts or something similar) and shoots it back to the server with a http post request.
The problem is that it usually takes a few seconds for the app to get the info, which often leaves the app crashing. A dialog comes up saying the app has become unresponsive and asks if i want to close the app or wait, if i press wait it eventually starts working again.
Is AsyncTask the right solution to this problem?
Another thing i don't really understand is how AsyncTask actually works. Let's say i have two methods that do a lot of work and crashes the app, can i put both of them in one AsyncTask and just call them from doInBackground()?

I have also implemented something similar you are trying. That is sending request to server, receive XML response, parse XML, show result. View This. I have used AsyncTask for this.
Here is how i have implemented it using AsynTask
private class AsyncClass extends AsyncTask<Void, Void, Bundle>{
#Override
protected Bundle doInBackground(Void... arg0) {
Bundle b=startProcess();
// startBundle() method do all the processing and return result in a bundle. You can as many methods from within startBundle() method
return b;
}
#Override
protected void onPostExecute(Bundle result) {
Log.d(TAG , "In onPostExecute");
dialog.dismiss();
if(result==null)
Toast.makeText(cont, "Can't process query.\nTry again later.", Toast.LENGTH_LONG).show();
else{
Intent in = new Intent(cont, QueryResultDisplay.class);
Log.d(TAG , "Displaying");
in.putExtras(result);
cont.startActivity(in);
}
}

I give you brief description about your problem.
There are many possibility that you don't get data from server
if your network speed is very slow and you try to get all the
information from server and XML data then in this case if network crash then it show you error
if you're making request to that page which is not in server
Now, if you are facing the problem in code, then I give you the complete code of AsyncTask class which I had implemented in my project and it work fine.
private class GetLoginResponse extends AsyncTask<Void, Void, Boolean> {
private ProgressDialog progressDialog;
private String email;
private String password;
public GetLoginResponse(String emailId, String paswd) {
this.email = emailId;
this.password = paswd;
}
#Override
protected void onPreExecute() {
progressDialog = ProgressDialog.show(LoginActivity.this, "",
"Loading....", true, false);
}
#Override
protected Boolean doInBackground(Void... params) {
try {
DefaultHttpClient httpclient = new DefaultHttpClient();
HttpGet httpGet = new HttpGet(url);
HttpResponse response = httpclient.execute(httpGet);
//here u can check the reponse is ok and 200
} catch (NetworkException e) {
isNetworkError = true;
}
return false;
}
#Override
protected void onPostExecute(Boolean data) {
progressDialog.dismiss();
System.out.println("lOGIN RESPONSE for email = " + email + data);
}
}// end AsyncTask
This would solve your problem.

Yes, you can use AsyncTask.
The code called in doInBackground() must not touch the UI.
You can touch the UI thread with publishProgress().