Android

QR camera scan with android phone using C#

18-Jul-19 0:37

Re: python

Afzaal Ahmad Zeeshan18-Jul-19 0:56

Afzaal Ahmad Zeeshan

18-Jul-19 0:56

Google might help you—not kidding, they usually do release some guidance on how they work on the crawlers, indexers etc.

If that is not what you are looking for, then try to study Elasticsearch and see how it works; GitHub - elastic/elasticsearch: Open Source, Distributed, RESTful Search Engine. But remember, before reading the source code, it might need that you study the basics of how coding works as well as the core components of computer science, as search engines or indexation gets pretty messy down the road.

The sh*t I complain about
It's like there ain't a cloud in the sky and it's raining out - Eminem
~! Firewall !~

A.Shoman15-Jul-19 21:04

A.Shoman

15-Jul-19 21:04

hello, am looking for a simple code in C# to develop QR scanner for android phone camera. please help.

Re: QR camera scan with android phone using C#

Richard MacCutchan15-Jul-19 21:15

QR scanner for android phone camera - Google Search[^]

15-Jul-19 21:15

download sound file in android webview

Member 1450174330-Jun-19 23:00

Member 14501743

30-Jun-19 23:00

hi
i have android webview app. one of my parts is to download blob sound data link to my device.my step as flow:

1- live audio record
2- create blob url
3- i can listen the url, and once press download i receive this message (unknown blob protocol)

any solution please?

Re: download sound file in android webview

David Crow3-Jul-19 4:11

David Crow

3-Jul-19 4:11

Member 14501743 wrote:
...i receive this message (unknown blob protocol)

From where? What does the download code look like? Have you stepped through it using the debugger?

"One man's wage rise is another man's price increase." - Harold Wilson

"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

"You can easily judge the character of a man by how he treats those who can do nothing for him." - James D. Miles

Re: download sound file in android webview

Member 145017433-Jul-19 4:27

Member 14501743

3-Jul-19 4:27

my html script is :

تسجيل الصوت

الايعازات

بدء
ايقاف

-->

and my js script is :

'use strict'

var log = console.log.bind(console),
id = val => document.getElementById(val),
ul = id('ul'),
gUMbtn = id('gUMbtn'),
start = id('start'),
stop = id('stop'),

stream,
recorder,
counter = 1,
chunks,
media;

gUMbtn.onclick = e => {
var mv = id('mediaVideo'),
mediaOptions = {
audio: {
tag: 'audio',
type: 'audio/mpeg',
ext: '.mp3',
gUM: { audio: true }
}
};
media = mv.checked ? mediaOptions.video : mediaOptions.audio;
navigator.mediaDevices.getUserMedia(media.gUM).then(_stream => {
stream = _stream;
id('gUMArea').style.display = 'none';
id('btns').style.display = 'inherit';
start.removeAttribute('disabled');
recorder = new MediaRecorder(stream);
recorder.ondataavailable = e => {
chunks.push(e.data);
if (recorder.state == 'inactive') makeLink();
};
log('got media successfully');
}).catch(log);
}

start.onclick = e => {
start.disabled = true;
stop.removeAttribute('disabled');
chunks = [];
recorder.start();
}

stop.onclick = e => {
stop.disabled = true;
recorder.stop();
start.removeAttribute('disabled');
}

function makeLink() {
var blob = new Blob(chunks, { type: media.type })

, url = window.URL.createObjectURL(blob)

, li = document.createElement('li')
, mt = document.createElement(media.tag)
, hf = document.createElement('a')

;
mt.controls = true;
mt.src = url;
hf.href = url;
hf.download = `SRV_${counter++}${media.ext}`;

hf.innerHTML = `donwload ${hf.download}`;

li.appendChild(mt);
li.appendChild(hf);
ul.appendChild(li);
}

Can't make charge with stripe in android Fire base

Saboor880220-Jun-19 6:21

Saboor8802

20-Jun-19 6:21

Hello to all! Hope you are fine. I am developing an e-commerce android app and integrating Stripe payment gateway in it and using Google Fire base as real time database.

I browsed the official website of stripe and took the source code from there. I used my test key from there. I successfully generated Stripe Token and saved it on my server (i-e Fire base). But I am unable to make an actual charge by using that token. That means no transaction shows on my stripe account. I am pasting my code, guide me what should i do to create/make charge?

Card cardToSave = cardInputWidget.getCard();
               if (cardToSave == null) {
                  Toast.makeText(getActivity(),"Invalid Card Data",Toast.LENGTH_LONG).show();
                  // mErrorDialogHandler.showError("Invalid Card Data");
               }
               else{

                   Stripe stripe = new Stripe(MainActivity.mcont,
               "pk_test_XZFc6CW7wmDMl4WWESxtvWd300ibs1wr85");

                         stripe.createToken(
                           cardToSave,
                           new TokenCallback() {
                               public void onSuccess(final Token token) {
                                   // Send token to your server
                                   customer_ref =
                              database.getReference("Customers").child(MainActivity.user.getUid());
                                    final String tokenid = token.getId();


                                             //saving the tokenID on my server(i-e fiebase)

                                           final Map<String, Object> params = new HashMap<>();
                                           params.put("amount", paid);
                                           params.put("currency", "usd");
                                           params.put("description", "Example charge");
                                           params.put("source", tokenid);

                                           HashMap map = new HashMap();
                                           map.put("StripeToken",tokenid);
                                           customer_ref.updateChildren(map);

                                           try {
                                               // creating charge object
                                               Charge charge = Charge.create(params);

                                           } catch (AuthenticationException e) {
                                               e.printStackTrace();
                                           } catch (InvalidRequestException e) {
                                               e.printStackTrace();
                                           } catch (APIConnectionException e) {
                                               e.printStackTrace();
                                           } catch (CardException e) {
                                               e.printStackTrace();
                                           } catch (APIException e) {
                                               e.printStackTrace();
                                           }

Re: Can't make charge with stripe in android Fire base

David Crow21-Jun-19 3:08

David Crow

21-Jun-19 3:08

The Stripe developers hang out here.

All record from SQLite DB is not inserting properly by using PHP and Android. Loop is not working.

PRASANTA KUMAR BISWAS5-May-19 19:33

PRASANTA KUMAR BISWAS

5-May-19 19:33

--Android Code
--============

<pre>private class UploadData extends AsyncTask<String, Void, String>
    {
        @Override
        protected void onPreExecute()
        {
            progressDialog.setMessage("Wait !!! Transferring SQLite Data into SQL Server DB.");
            progressDialog.setIndeterminate(false);
            progressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
            progressDialog.setCancelable(false);
            progressDialog.show();
        }

        @Override
        protected void onPostExecute(String result)
        {
            progressDialog.dismiss();

            AlertDialog YesNo1 = DialogYesNo();
            YesNo1.setMessage("Hh Count Tablet: " + HhTablet + " , Hh Count Server: " + HhServer + "\n" + " -- has been transferred to SQL server DB !!! ");
            YesNo1.setCancelable(false);
            YesNo1.show();

            HhServer = 0;
        }

        @Override
        protected String doInBackground(String... params)
        {
            String result = "";
            httpclient = new DefaultHttpClient();
            httppost = new HttpPost("http://172.16.15.13/testing/datasync.php"); // make sure the url is correct.

            try
            {
                try
                {
                    cursor = ConnectionDB.SelectRecord("Select HH,PartM,GISID,Mohalla from HH");
                    HhTablet = cursor.getCount();

                    if (cursor != null)
                    {
                        cursor.moveToFirst();

                        while (!cursor.isAfterLast())
                        {
                            for (int k = 0; k < HhTablet; k++)
                            {
                                //Add data
                                //========
                                nameValuePairs = new ArrayList<NameValuePair>(4);

                                // Always use the same variable name for posting i.e the android side variable name and php side variable name should be similar
                                //==============================================================================================================================
                                nameValuePairs.add(new BasicNameValuePair("HH", cursor.getString(cursor.getColumnIndex("HH"))));
                                nameValuePairs.add(new BasicNameValuePair("PartM", cursor.getString(cursor.getColumnIndex("PartM"))));
                                nameValuePairs.add(new BasicNameValuePair("GISID", cursor.getString(cursor.getColumnIndex("GISID"))));
                                nameValuePairs.add(new BasicNameValuePair("Mohalla", cursor.getString(cursor.getColumnIndex("Mohalla"))));
                                httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
                                HhServer = HhServer + 1;
                            }

                            //Execute HTTP Post Request
                            //=========================
                            ResponseHandler<String> responseHandler = new BasicResponseHandler();
                            String responseBody = httpclient.execute(httppost, responseHandler);

                            // JSON Parse
                            //============
                            JSONObject json = new JSONObject(responseBody);
                            JSONArray jArray = json.getJSONArray("posts");
                            ArrayList<HashMap<String, String>> mylist = new ArrayList<HashMap<String, String>>();

                            for (int i = 0; i < jArray.length(); i++)
                            {
                                HashMap<String, String> map = new HashMap<String, String>();
                                JSONObject e = jArray.getJSONObject(i);
                                String s = e.getString("post");
                                JSONObject jObject = new JSONObject(s);

                                map.put("HH", jObject.getString(cursor.getString(cursor.getColumnIndex("HH"))));
                                map.put("PartM", jObject.getString(cursor.getString(cursor.getColumnIndex("PartM"))));
                                map.put("GISID", jObject.getString(cursor.getString(cursor.getColumnIndex("GISID"))));
                                map.put("Mohalla", jObject.getString(cursor.getString(cursor.getColumnIndex("Mohalla"))));
                                mylist.add(map);
                                cursor.moveToNext();
                            }
                        }
                    }
}
                catch (Exception ex)
                {
                    ex.printStackTrace();
                }
                finally
                {
                    cursor.close();
                }
}
            catch (Exception ex)
            {
                ex.printStackTrace();
            }
            return result;
        }
    }

--PHP code
--==========

<?php
include ("dbconnection.php"); 

$json = file_get_contents('php://input');
$obj = json_decode($json);

$HH=$_POST[HH];
$PartM=$_POST[PartM];
$GISID=$_POST[GISID];
$Mohalla=$_POST[Mohalla];

//First need to delete from database by TABID
//===========================================
//$recdel = "DELETE From HH"; 
//$stmtdel = $conn->query( $recdel );  
//===========================================

//Then need to insert
//===================

//$recdel = "SELECT COUNT(*) FROM HH"; 
//$stmtdel = $conn->query( $recdel ); 

//if ($stmtdel > 0) 
//{
	//$query = "UPDATE HH SET `HH` = '$HH',`PartM` = '$PartM',`GISID` = '$GISID',`Mohalla` = '$Mohalla' WHERE `HH` = '$HH'";   
	//$stmt = $conn->query( $query );
//}
//else
//{
	$query = "INSERT INTO HH(HH,PartM,GISID,Mohalla) VALUES ('$HH','$PartM','$GISID','$Mohalla')";   
	$stmt = $conn->query( $query );
//}
	
	if ($query) 
	{
        $response["success"] = 1;
        $response["message"] = "Record is successfully created.";
        echo json_encode($response);
    } 
	else 
	{
        $response["success"] = 0;
        $response["message"] = "Sorry! An error occurred.";
        echo json_encode($response);
    }
	$posts = array(1);
    header('Content-type: application/json');
    echo json_encode(array('posts'=>$posts));
	
$stmt = null;   
$conn = null; 
?>

modified 6-May-19 6:12am.

Re: I am unable to send SQLite data(multiple record) to SQL server 2005 database by using PHP and Android

Richard MacCutchan5-May-19 21:55

Re: I am unable to send SQLite data(multiple record) to SQL server 2005 database by using PHP and Android

5-May-19 21:55

What exactly happens when you run this code? What is the data sent in the URL, and what is the response from the server?

PRASANTA KUMAR BISWAS5-May-19 23:41

PRASANTA KUMAR BISWAS

5-May-19 23:41

Data is sending properly from this code but I am having problem in the loop. In my SQLite DB I am having 5 records but I am getting only one record when I am sending from the TAB.

Re: I am unable to send SQLite data(multiple record) to SQL server 2005 database by using PHP and Android

Richard MacCutchan5-May-19 23:51

Re: All record from SQLite DB is not inserting properly by using PHP and Android. Loop is not working.

5-May-19 23:51

Sorry but your descrikption is not clear. Please edit your question and explain exactly where the problem occurs, and what happens.

Richard Deeming8-May-19 1:34

Richard Deeming

8-May-19 1:34

Your code is vulnerable to SQL Injection[^]. NEVER use string concatenation (or interpolation) to build a SQL query. ALWAYS use a parameterized query.

Everything you wanted to know about SQL injection (but were afraid to ask) | Troy Hunt[^]
How can I explain SQL injection without technical jargon? | Information Security Stack Exchange[^]
PHP: SQL Injection - Manual[^]
PHP: Prepared statements and stored procedures - Manual[^]

"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer

no database data after depolyment

Wiep Corbier29-Apr-19 21:54

29-Apr-19 21:54

So I have created my first mobile app with xamarin cross platform. I only use the Android part.
I have tested my app extensively and all works very fine.
I also have a server and all the data comes from this server by APIs.
All the CRUD is working

After that I created an apk-file and send it to my tablet and Phone.
The pages/View are presented but with a very small font.

But that's not my problem. The problem is: no data. It looks like nothing is returned but, there are also no messages of network problems.

So, what's going on? Confused | :confused:

Richard MacCutchan29-Apr-19 22:43

29-Apr-19 22:43

At a guess, there is a bug somewhere in your code.

Wiep Corbier29-Apr-19 23:16

29-Apr-19 23:16

I'm now checking it...But it runs fine on my development computer. And the server is somewehere in the world. I have no idea but it is not a local server.

I'll get back

Wiep Corbier30-Apr-19 7:29

30-Apr-19 7:29

Found it. No bugs.

I used just a very small font (6). On my virtual device it looks fine but on my tablet it wasn't readable.
I'm very happy it works, but I'm very sorry for posting here. I was too hasty

Thanks for the reply.

Mycroft Holmes30-Apr-19 12:31

Mycroft Holmes

30-Apr-19 12:31

What was the problem with the data connection?

Never underestimate the power of human stupidity -
RAH
I'm old. I know stuff - JSOP

Wiep Corbier1-May-19 8:10

1-May-19 8:10

There was no problem

android

Alazar yikunuamlak11-Apr-19 19:04

Alazar yikunuamlak

11-Apr-19 19:04

speech to text and text to speech android application code

Re: android

Richard MacCutchan11-Apr-19 20:31