Android Question Code sample request

[eds1234]

Im new user of B4A, still on trial. Would like to have a working sample of Geocoder / MQTT / FTP, so I can do testing first. Hope you could help me.

Thanks

 

[Erel]

Moved to the questions forum.

MQTT example: https://www.b4x.com/android/forum/threads/b4x-mqtt-chat-room.61568/#content
Geocoder: https://www.b4x.com/android/forum/threads/b4x-google-geocoding-rest-api.83870/#content

FTP: https://www.b4x.com/android/forum/threads/b4x-net-library-ftp-smtp-pop-with-wait-for.84821/#content

If you have any specific question then please post it.

 

[eds1234]

Hi Erel,

Thanks for your response. I tried the Chat sample for MQTT, but upon opening, there is erro missing jMqttBroker error. I have the jMqttBroker2 lib.
When I checked it in the Library Manager, compiling has some error and compiling aborted.

Also, is there a working sample for ftp? like Chat for mqtt. sorry to ask like this. Thanks

 

[Erel]

jMQTTBroker is a different library.

Also, is there a working sample for ftp?

Go over the tutorial. The code should be very simple. The exact details depend on your FTP server.

 

[eds1234]

Hi Erel,

Chat sample compiled ok with jmqttbroker (moqueutte). My phone is connected via B4A-Bridge, when I hit F5, and it tried installing on phone, there is an error "App not installed."

what could the issue.

The basic sample was installed in my phone earlier.

 

[eds1234]

The chat example is now running, on my 2 phones. but when i click connect, (both server and client), the application crashes. what could be the issue?

Thanks

 

[josejad]

the application crashes. what could be the issue?

To get a proper answer, you need to give us more data.
What is the log error? Without that information, we can't give you an answer.
Be sure when you get an error, of searching for it in the forum, most of times there's answer to another user.

 

[eds1234]

Thanks for the response. Yes, I will. will set up again now and post logs. Thanks again

 

[eds1234]

Hi. Here is the error log when i tried the Chat sample for mqtt:

Error occurred on line: 40 (Starter)
java.lang.reflect.InvocationTargetException
   at java.lang.reflect.Method.invoke(Native Method)
   at anywheresoftware.b4a.keywords.Common.CallSubDebug3(Common.java:1061)
   at b4a.example.main._btnconnect_click(main.java:470)
   at java.lang.reflect.Method.invoke(Native Method)
   at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:732)
   at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:348)
   at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:255)
   at java.lang.reflect.Method.invoke(Native Method)
   at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:144)
   at anywheresoftware.b4a.BA.raiseEvent2(BA.java:180)
   at anywheresoftware.b4a.BA.raiseEvent(BA.java:176)
   at anywheresoftware.b4a.objects.ViewWrapper$1.onClick(ViewWrapper.java:80)
   at android.view.View.performClick(View.java:5698)
   at android.widget.TextView.performClick(TextView.java:10908)
   at android.view.View$PerformClick.run(View.java:22565)
   at android.os.Handler.handleCallback(Handler.java:739)
   at android.os.Handler.dispatchMessage(Handler.java:95)
   at android.os.Looper.loop(Looper.java:158)
   at android.app.ActivityThread.main(ActivityThread.java:7231)
   at java.lang.reflect.Method.invoke(Native Method)
   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
Caused by: java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
   at anywheresoftware.b4a.debug.Debug.CallSub4(Debug.java:336)
   at anywheresoftware.b4a.debug.Debug.CallSubNew3(Debug.java:288)
   ... 22 more
Caused by: java.lang.reflect.InvocationTargetException
   at java.lang.reflect.Method.invoke(Native Method)
   at anywheresoftware.b4a.debug.Debug.CallSub4(Debug.java:318)
   ... 23 more
Caused by: java.lang.ExceptionInInitializerError
   at anywheresoftware.b4j.objects.MqttAsyncClientWrapper.Initialize(MqttAsyncClientWrapper.java:42)
   at b4a.example.starter._connectto(starter.java:180)
   ... 25 more
Caused by: java.util.MissingResourceException: Can't find resource for bundle 'org.eclipse.paho.client.mqttv3.internal.nls.logcat_en_PH', key ''
   at java.util.ResourceBundle.missingResourceException(ResourceBundle.java:238)
   at java.util.ResourceBundle.getBundle(ResourceBundle.java:230)
   at java.util.ResourceBundle.getBundle(ResourceBundle.java:139)
   at org.eclipse.paho.client.mqttv3.logging.LoggerFactory.getLogger(LoggerFactory.java:73)
   at org.eclipse.paho.client.mqttv3.MqttAsyncClient.<clinit>(MqttAsyncClient.java:79)
   ... 27 more

line 40 is:

client.Initialize("client", $"tcp://${Host}:${port}"$, "android" & Rnd(1, 10000000))

im getting both error on client and server, after i click Connect button, and the application in the phone will crash.

what could be the issue. same response on my samsung J5 and J6+ Thanks

 

[josejad]

So I think the problem is the trial version, wait for @Erel to confirm:

https://www.b4x.com/android/forum/t...-android-application.25984/page-9#post-384004

 

[Erel]

It is related to the trial version. The trial version doesn't support a feature that is required for this library (it doesn't include the additional resources).

 

[eds1234]

Hi. Thanks.

I was able to run now the mqtt chat sample after having a license.