ConnectionRequest when the app is in the background - codenameone

I've tested Geofence example by cn1 where it sets local notification. When the app is closed(get destroyed), it still gives notification. But I want to get location through GPS and run connectionRequest to save them in the server. I replaced the connectionRequest code instead of LocalNotification in following code but it doesnot work. What should I do to run the connectionRequest when the app is closed(not when it is minimized but destroyed) so that once the user installs and close (destroys) it, the app sent his/her location data in the server forever untill the app is uninstalled.
Geofence gf = new Geofence("test", loc, 100, 100000);
LocationManager.getLocationManager().addGeoFencing(GeofenceListenerImpl.class, gf);
Geofence with localNotification:
public class GeofenceListenerImpl implements GeofenceListener {
#Override
public void onExit(String id) {
}
#Override
public void onEntered(String id) {
if(Display.getInstance().isMinimized()) {
Display.getInstance().callSerially(() -> {
Dialog.show("Welcome", "Thanks for arriving", "OK", null);
});
} else {
LocalNotification ln = new LocalNotification();
ln.setId("LnMessage");
ln.setAlertTitle("Welcome");
ln.setAlertBody("Thanks for arriving!");
Display.getInstance().scheduleLocalNotification(ln, 10, LocalNotification.REPEAT_NONE);
}
}
}
Why the following doesnot work? (it only work when the app is running or is minimized but not when it is destroyed.)
public class GeofenceListenerImpl implements GeofenceListener {
#Override
public void onExit(String id) {
System.out.println("geofence onExit");
}
#Override
public void onEntered(String id) {
if(Display.getInstance().isMinimized()) {
Display.getInstance().callSerially(() -> {
System.out.println("geofence isMinimized");
});
} else {
System.out.println("geofence when app is closed");
//I want to run connectionRequest here but is not working
}
}
}
PS. I've used background fetch but it only works when the app is minimized.
Update1: Demo of how I used connectionRequest outside of minimized() method...
public class GeofenceListenerImpl implements GeofenceListener {
#Override
public void onExit(String id) {
System.out.println("geofence onExit");
}
#Override
public void onEntered(String id) {
if(Display.getInstance().isMinimized()) {
Display.getInstance().callSerially(() -> {
});
} else {
System.out.println("geofence when app is closed");
Connection c = new Connection();
c.liveTrackConnectionMethod("22" , "23");
}
}
}
Connection class
public class Connection {
ArrayList<Map<String, Object>> response;
public void liveTrackConnectionMethod(String lat, String lon) {
ConnectionRequest cr = new ConnectionRequest() {
#Override
protected void readResponse(InputStream input) throws IOException {
JSONParser jSONParser = new JSONParser();
Map parser = jSONParser.parseJSON(new InputStreamReader(input));
response = null;
}
};
cr.setPost(true);
cr.setUrl("http://url.com");
cr.addArgument("userid", Preferences.get(AllUrls.userIdPreference, null));
cr.addArgument("lat", lat + "");
cr.addArgument("long", lon + "");
cr.addRequestHeader("Accept", "application/json");
NetworkManager.getInstance().addToQueueAndWait(cr);
}
}

I think an app will always return false for isMinimized() when the app is closed or minimized (i.e. not currently running in the foreground) I may be wrong about this.
Try calling your connectionRequest script outside the isMinimized(). After all, you will want to keep track of user location whether they are using the app or not.
Your first solution with LocalNotification will show users a notification by calling the else part, rather than the Dialog when they're using the app, because isMinimized() will be false.

Related

Windows Service can not open Windows Form

I am trying to create a Windows Service using TopShelf and within this service i want to launch a Windows Form.After i created the service and i debugged it calling ShowDialog the form does not show up:
Service
class SimpleServ {
private Task task;
private const string PATH = #"D:/out.txt";
private Logger logger;
private CancellationTokenSource src = new CancellationTokenSource();
public SimpleServ() {
logger = new Logger();
}
public void Start() {
logger.Log("Started");
this.task = Task.Run(async () => {
var fm = new Fm(logger);
while (true) {
fm.ShowDialog();
logger.Log("Just closed the dialog");
await Task.Delay(3000);
}
});
}
public void Stop() {
logger.Log("Stopped service");
}
}
Form
public partial class Fm : Form {
private Logger log;
public Fm(Logger log) {
this.log = log;
this.log.Log("From Form constructor");
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e) {
this.log.Log("Button clicked");
this.Close();
}
}
Main
class Program {
static void Main(string[] args) {
var exitCode = HostFactory.Run(x => {
x.Service<SimpleServ>(s => {
s.ConstructUsing(h => new SimpleServ());
s.WhenStarted(h => h.Start());
s.WhenStopped(h => h.Stop());
});
x.RunAsLocalSystem();
x.SetServiceName("SimpleService");
x.SetDisplayName("Simple Service");
x.SetDescription("Simple serv description");
});
int exitCodeValue = (int)Convert.ChangeType(exitCode, exitCode.GetTypeCode());
Environment.ExitCode = exitCodeValue;
}
}
I have attached myself to the service and after it reaches the line of ShowDialog nothing happens.
Update
I have also added a Logger to log all important events and so far , it seems the form opens but i can not see it:
Logger
public class Logger {
private string path;
public Logger(string logPath=Constants.PATH) {
this.path = logPath;
}
private object #lock = new object();
public void Log(string message) {
string formattedMessage = "Date:" + DateTime.Now.ToString() + "\tMessage:" + message;
File.AppendAllLines(this.path, new string[] { formattedMessage });
}
}
The output of the file is :
Date:6/12/2019 11:19:13 AM Message:Started
Date:6/12/2019 11:19:13 AM Message:From Form constructor
In a world where Session 0 Isolation -- an important security measure to prevent Shatter attacks -- is the law of the land, you should think very carefully about any design relying on service interaction.
A best practice is to restructure your solution to have:
A service that runs in the background, independently of the
user
A conventional GUI application that interacts with the service and
can be run by any user

Push notification not reaching when app in foreground

I'm having trouble getting Push Notifications when the app is in foreground in an Android device. As soon as I put the app in the background all goes well.
This is the java code I use to send de notifications:
HttpClient client = HttpClientBuilder.create().build();
HttpPost httpPost = new HttpPost(URL_SERVER);
List<NameValuePair> arguments = new ArrayList<>();
arguments.add(new BasicNameValuePair("token", TOKEN));
arguments.add(new BasicNameValuePair("device", codigoApp));
arguments.add(new BasicNameValuePair("type", "1"));
arguments.add(new BasicNameValuePair("body", ip));
arguments.add(new BasicNameValuePair("auth", GOOGLE_AUTH));
try {
httpPost.setEntity(new UrlEncodedFormEntity(arguments));
HttpResponse response = client.execute(httpPost);
String result = EntityUtils.toString(response.getEntity());
System.out.println(result);
} catch (IOException ex) {
Logger.getLogger(NotificaReview.class.getName()).log(Level.SEVERE, null, ex);
}
And this is the code in the app:
public void start() {
if(current != null){
current.show();
return;
}
if (Push.getPushKey() != null)
devicePush = Push.getPushKey();
else
Display.getInstance().registerPush();
Form inicioGUI = new InicioGUI(devicePush);
inicioGUI.show();
}
public void stop() {
current = getCurrentForm();
if(current instanceof Dialog) {
((Dialog)current).dispose();
current = getCurrentForm();
}
}
public void destroy() {
}
#Override
public void push(String value) {
ToastBar.showMessage("Archivo recibido correctamente con IP" + value, FontImage.MATERIAL_INFO);
}
#Override
public void registeredForPush(String deviceId) {
devicePush = deviceId;
}
#Override
public void pushRegistrationError(String error, int errorCode) {
}
The ToastBar only shows when I bring the app to foreground after receiving the push while in background. The Push callback is never called if the app is alive.
Any ideas?
I need answers to my comment in the question which might help explain the issue. I'll edit this answer based on the updates to the question.
In the meantime I see several issues in the code. See my highlighted comments/fixes below:
public void start() {
if(current != null){
current.show();
return;
}
// don't check the push key, always register the device and
// always do it in a callSerially as it might trigger a prompt
callSerially(() -> registerPush());
Form inicioGUI = new InicioGUI(Push.getPushKey());
inicioGUI.show();
}
#Override
public void push(String value) {
ToastBar.showMessage("Archivo recibido correctamente con IP" + value, FontImage.MATERIAL_INFO);
}
#Override
public void registeredForPush(String deviceId) {
// deviceId is the native push key you need to use the actual
// push key value never device ID
devicePush = Push.getPushKey();
}
#Override
public void pushRegistrationError(String error, int errorCode) {
// you might have gotten a push error which might have explained the
// cause of the problem
Log.p("Push error " + errorCode + ":" + error);
Log.sendLogAsync();
}

Add interstitial to pdf library

I try to create a book with pdf library i found this library , i created my book everything is ok , i just wanna add interstitial admob and show it every 30 seconds , i tried with handler runnable but it's still show just one time.
mInterstitialAd = new InterstitialAd(this);
mInterstitialAd.setAdUnitId("ca-app-pub-3940256099942544/1033173712");
mInterstitialAd.loadAd(new AdRequest.Builder().build());
handler = new Handler();
final Runnable r = new Runnable() {
public void run() {
if (mInterstitialAd.isLoaded()) {
mInterstitialAd.show();
}
handler.postDelayed(this, 1000);
}
};
handler.postDelayed(r, 1000);
You can use ScheduledExecutorService, and schedule a periodic action.
mInterstitialAd.setAdListener(new AdListener() {
public void onAdLoaded() {
// don't show Ad here
}
#Override
public void onAdClosed() {
createRequest(); //load request whenever ad closed by user
}
});
createRequest();
ScheduledExecutorService scheduler = Executors.newSingleThreadScheduledExecutor();
scheduler.scheduleAtFixedRate(new Runnable() {
public void run() {
runOnUiThread(new Runnable() {
#Override
public void run() {
if (mInterstitialAd.isLoaded())
mInterstitialAd.show();
else
createRequest();
}
});
}
}, 30, 30, TimeUnit.SECONDS);
And createRequest() method
public void createRequest(){
AdRequest adRequest = new AdRequest.Builder().build();
mInterstitialAd.loadAd(adRequest);
}

Unable to display toast messages

I have download and use the code form the following URL
https://github.com/Pmovil/Toast to display toast message.
Initially I got NativeToastImpl Not implemented error. I have resolved by coping the native related code to my project. Now the System throws Runtime Exception "Toast is not supported in this platform."
Here is my code to display toast message.
public class MyApplication {
private Form current;
private static Object context;
public void init(Object context) {
MyApplication.context = context;
}
public static Object getContext() {
return context;
}
public void start() {
if (current != null) {
current.show();
return;
}
showLoginForm();
}
public void stop() {
current = Display.getInstance().getCurrent();
}
public void destroy() {
}
private void showLoginForm() {
Form form = new Form("WelCome ...");
Button b = new Button(" Login ");
b.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
Log.p(" Came hgere ");
Log.p(" *** " + MyApplication.getContext());
Toast.makeText(MyApplication.getContext(), "HI", Toast.LENGTH_LONG);
}
});
form.addComponent(b);
form.show();
}}
I have used Net Beans IDE for development, OS : windows 8.1
Please let me know I am doing wrong in this code and
Is there any other way to display toast messages using codename one?.
Thanks in advance
please edit the following code and please test the toast in device . Toast is not available in emulator.
public void init(Object context) {
this.context = context;
}
b.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
Log.p(" Came hgere ");
Toast.makeText(context, "HI", Toast.LENGTH_LONG);
}
});
You missed the show() method on Toast.
Toast.makeText(MyApplication.getContext(), "HI", Toast.LENGTH_LONG).show();

Retry request onErrorResponse Android volley

When i receive an error in onerrorrepsonse of android volley request i want to retry the request. How can i achieve this?
well, you can create the RetryPolicy to change default retry behavior, only specify timeout milliseconds, retry count arguments :
public class YourRequest extends StringRequest {
public YourRequest(String url, Response.Listener<String> listener,
Response.ErrorListener errorListener) {
super(url, listener, errorListener);
setRetryPolicy(new DefaultRetryPolicy(DefaultRetryPolicy.DEFAULT_TIMEOUT_MS,
DefaultRetryPolicy.DEFAULT_MAX_RETRIES, DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
}
}
the another way is estimate the VolleyError, re-execute the same request again when if was TimeoutError instance :
public static void executeRequest() {
RequestQueue.add(new YourRequest("http://your.url.com/", new Response.Listener<String>() {
#Override
public void onResponse(String response) {
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
if (error instanceof TimeoutError) {
// note : may cause recursive invoke if always timeout.
executeRequest();
}
}
}));
}
you may have a question at this very moment : "have Volley offer some retry callback methods ?", the answer is "none". but there have a project calls Netroid which based Volley and satisfy preceded question, with it, you can take a retry callback if you care about that, you can calculate how much time used when retry coming and how long this request execute, the code style like this :
final String REQUESTS_TAG = "Request-Demo";
String url = "http://facebook.com/";
JsonObjectRequest request = new JsonObjectRequest(url, null, new Listener<JSONObject>() {
long startTimeMs;
int retryCount;
#Override
public void onPreExecute() {
startTimeMs = SystemClock.elapsedRealtime();
}
#Override
public void onFinish() {
RequestQueue.add(request);
NetroidLog.e(REQUESTS_TAG);
}
#Override
public void onRetry() {
long executedTime = SystemClock.elapsedRealtime() - startTimeMs;
if (++retryCount > 5 || executedTime > 30000) {
NetroidLog.e("retryCount : " + retryCount + " executedTime : " + executedTime);
mQueue.cancelAll(REQUESTS_TAG);
} else {
NetroidLog.e(REQUESTS_TAG);
}
}
});
request.setRetryPolicy(new DefaultRetryPolicy(5000, 20, DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
request.setTag(REQUESTS_TAG);
RequestQueue.add(request);
Netroid also have many other handy and powerful features, hope that will help you enough :).
You can set counter variable for trying specific time with out making it full recursive
static int count=10; //so its will try ten time
public void userLogin(final View view)
{
final RequestQueue requestQueue= Volley.newRequestQueue(getApplicationContext());
String url = "http://192.168.43.107/mobodb/register.php";
StringRequest stringRequest=new StringRequest(Request.Method.POST,url,new Response.Listener<String>()
{
#Override
public void onResponse(String response) {
Toast.makeText(getApplicationContext(),"Updated",Toast.LENGTH_LONG).show();
}
}
},new Response.ErrorListener()
{
#Override
public void onErrorResponse(VolleyError error) {
count=count-1;
Toast.makeText(getApplicationContext(),"Retry left"+count,Toast.LENGTH_LONG).show();
if (count>0) {
// note : may cause recursive invoke if always timeout.
userLogin(view);
}
else
{
Toast.makeText(getApplicationContext(),"Request failed pls check network connection or the error is "+error.getMessage(),Toast.LENGTH_LONG).show();
}
}
})
{
#Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String,String> paramter=new HashMap<String,String>();
paramter.put("name",login_name);
paramter.put("user_pass",login_pass);
return paramter;
}
};
requestQueue.add(stringRequest);
stringRequest.setRetryPolicy(new DefaultRetryPolicy(20 * 1000, 10, 1.0f));
you can also check response inside which you can return from php and deal in your java class
#Override
public void onResponse(String response) {
if(response.contains("no record found for"))
Toast.makeText(getApplicationContext(),response.toString(),Toast.LENGTH_LONG).show();
else
{
Toast.makeText(getApplicationContext(),"Updated num of row is"+response.toString(),Toast.LENGTH_LONG).show();
}
}
your PHP code will be
if($res){
$resp=mysql_affected_rows();
if($resp==0)
{
$resp="no record found for".$_POST['name'];
}
if($resp==1 or $resp>1)
{
$resp=mysql_affected_rows();
}else $resp="efrror is".mysql_error();

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