Android

Listview item to textview

9-Dec-18 14:38

See here and/or here.

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Member 140794445-Dec-18 21:46

Member 14079444

5-Dec-18 21:46

I am trying to move a checked listview item from one activity to a textview of another activity. But the problem is no matter which item I click, I am only getting textview value of first item(Position) in listview.

Listview code

Java

b1.setOnClickListener(new View.OnClickListener() {
          @Override
          public void onClick(View view) {
              SparseBooleanArray checked =listView.getCheckedItemPositions();
              ArrayList<String> selectedItems = new ArrayList<String>();
              String str = null;
              for (int i = 0; i < checked.size(); i++) {
                  int position;
                  position = checked.keyAt(i);
                  if (checked.valueAt(i))
                      selectedItems.add(String.valueOf(arrayAdapter.getItem(position)));
                  str = listView.getItemAtPosition(i).toString();
                  str=str.replaceAll("[^\\d.]", "");
              }
              Intent i = new Intent(getApplicationContext(), Activation.class);
              i.putExtra("contact", str);
              startActivity(i);
              arrayAdapter.remove(str);
          }
      });

This is the code of how the listview item is accepted as textview

Java

Intent i = getIntent();
                String product = i.getStringExtra("contact");
                text.setText(product);

Richard MacCutchan5-Dec-18 23:12

5-Dec-18 23:12

You are setting the value of str to a new string each time round the loop. So when the loop terminates it will contain the text from the last item in the list.

Member 140794446-Dec-18 0:45

Member 14079444

6-Dec-18 0:45

Yea, I tried setting the str value outside the loop, but the result's the same.

Richard MacCutchan6-Dec-18 1:24

6-Dec-18 1:24

You need to do it where you test for a selected item in the ListView.

David Crow6-Dec-18 5:52

POSTING DATA FROM ANDROID TO PHP SERVER

6-Dec-18 5:52

Is this a single- or multi- selection listview?

Member 14079444 wrote:
if (checked.valueAt(i))

If this evaluates to true, shouldn't you exit the for loop, or are you continuing the search for some other reason?

Member 1407048128-Nov-18 5:47

Member 14070481

28-Nov-18 5:47

How to send data from android app to a php page?

Re: POSTING DATA FROM ANDROID TO PHP SERVER

David Crow29-Nov-18 18:46

Re: POSTING DATA FROM ANDROID TO PHP SERVER

29-Nov-18 18:46

Wouldn't it be by using either an HTTP POST or GET command?

GiteHrudaya14-Dec-18 1:17

GiteHrudaya

14-Dec-18 1:17

It is very important for a mobile application too talk to web based applications. There are various scenarios where we need to fetch data from web pages .

The code below will enable your android app to talk to a webpage.

Note : You also need to enable uses permission for internet in the android.manifest file.

<uses-permission
        android:name="android.permission.INTERNET" />
Code for android app


public void postData(String toPost) {
// Create a new HttpClient and Post Header
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://www.URL.com/yourpage.php");

//This is the data to send
String MyName = 'adil'; //any data to send

try {
// Add your data
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(1);
nameValuePairs.add(new BasicNameValuePair("action", MyName));

httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));

// Execute HTTP Post Request

ResponseHandler<String> responseHandler = new BasicResponseHandler();
String response = httpclient.execute(httppost, responseHandler);

//This is the response from a php application
String reverseString = response;
Toast.makeText(this, "response" + reverseString, Toast.LENGTH_LONG).show();

} catch (ClientProtocolException e) {
Toast.makeText(this, "CPE response " + e.toString(), Toast.LENGTH_LONG).show();
// TODO Auto-generated catch block
} catch (IOException e) {
Toast.makeText(this, "IOE response " + e.toString(), Toast.LENGTH_LONG).show();
// TODO Auto-generated catch block
}

}//end postData()

php code

<?php

//code to reverse the string

$reversed = strrev($_POST["action"]);

echo $reversed;

?>

modified 29-Dec-18 2:08am.

Re: POSTING DATA FROM ANDROID TO PHP SERVER

GiteHrudaya27-Dec-18 23:31

GiteHrudaya

27-Dec-18 23:31

Android – sending and receiving data from a php page
29
JAN
It is very important for a mobile application to talk to web based applications. There are various scenarios where we need to fetch data from web pages .

The code below will enable your android app to talk to a webpage.

Note : You also need to enable uses permission for internet in the android.manifest file.

<uses-permission
        android:name="android.permission.INTERNET" />
Code for android app


public void postData(String toPost) {
// Create a new HttpClient and Post Header
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://www.URL.com/yourpage.php");

//This is the data to send
String MyName = 'adil'; //any data to send

try {
// Add your data
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(1);
nameValuePairs.add(new BasicNameValuePair("action", MyName));

httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));

// Execute HTTP Post Request

ResponseHandler<String> responseHandler = new BasicResponseHandler();
String response = httpclient.execute(httppost, responseHandler);

//This is the response from a php application
String reverseString = response;
Toast.makeText(this, "response" + reverseString, Toast.LENGTH_LONG).show();

} catch (ClientProtocolException e) {
Toast.makeText(this, "CPE response " + e.toString(), Toast.LENGTH_LONG).show();
// TODO Auto-generated catch block
} catch (IOException e) {
Toast.makeText(this, "IOE response " + e.toString(), Toast.LENGTH_LONG).show();
// TODO Auto-generated catch block
}

}//end postData()

php code

<?php

//code to reverse the string

$reversed = strrev($_POST["action"]);

echo $reversed;

?>

Detect VPN From Android App

Kevin Marois26-Nov-18 5:04

26-Nov-18 5:04

I'm working on an Android app that we only want to allow to run if the user has VPN'd into the network.

The question is, how do I determine if the user has VPN'd in?

I have tried the following:

var address = Dns.GetHostAddresses("www.mycompany.com").FirstOrDefault();
var hostName = Dns.GetHostName();
var domainName = System.Environment.UserDomainName;

UserDialogs.Instance.Alert(domainName, "Domain Name", "OK");
UserDialogs.Instance.Alert(hostName, "Host Name", "OK");
UserDialogs.Instance.Alert(address.ToString(), "Address", "OK");

The results are always the same, even if I'm NOT VPN'd in.

Thanks

If it's not broken, fix it until it is.
Everything makes sense in someone's mind.
Ya can't fix stupid.

Richard MacCutchan26-Nov-18 6:04

26-Nov-18 6:04

This is the same issue as discussed at Detect Network / VPN Connection Part 2 - C# Discussion Boards[^]. The domain will always be the domain that you are finally connected to, as that is the whole reason for a VPN.

Kevin Marois26-Nov-18 6:25

26-Nov-18 6:25

So what are you saying, that there's no way to determine if I'm VPN'd in?

If it's not broken, fix it until it is.
Everything makes sense in someone's mind.
Ya can't fix stupid.

Richard MacCutchan26-Nov-18 7:53

26-Nov-18 7:53

I don't know for sure, but none of the properties you referred to will tell you. They are all related to the real network that you finally connect to. Information about the VPN would be external to them. Probably more important to explain what problem you are actually trying to solve.

Kevin Marois26-Nov-18 8:26

26-Nov-18 8:26

Richard MacCutchan wrote:
Probably more important to explain what problem you are actually trying to solve.

I did in my post
"I'm working on an Android app that we only want to allow to run if the user has VPN'd into the network."

The app generates a daily barcode for logging into an instrument we have. We only want internal users to run the app.

If it's not broken, fix it until it is.
Everything makes sense in someone's mind.
Ya can't fix stupid.

David Crow26-Nov-18 8:50

26-Nov-18 8:50

Just to clarify, this is for Android devices connected to your internal network via VPN, and not WiFi?

Are you using a VPN app on the Android device?

Could the barcode that the Android device is generating be uploaded to a secure web site? I'm not trying to change your mind, rather just trying to see if there are any other ways to skin that cat.

Kevin Marois26-Nov-18 10:12

26-Nov-18 10:12

David Crow wrote:
Just to clarify, this is for Android devices connected to your internal network via VPN, and not WiFi?

Are you using a VPN app on the Android device

That's correct

David Crow wrote:
Could the barcode that the Android device is generating be uploaded to a secure web site? I'm not trying to change your mind, rather just trying to see if there are any other ways to skin that cat

Not an option

If it's not broken, fix it until it is.
Everything makes sense in someone's mind.
Ya can't fix stupid.

David Crow26-Nov-18 10:17

26-Nov-18 10:17

Would you be able to detect if the VPN app itself was up & running? I don't use VPN for anything so I don't know if they're considered "up & running" if no one is logged in to it. In other words, you may get a false positive.

Would you be able to create a web site (it doesn't need to do anything other than exist) that is only available from your internal network (i.e., from inside your firewall)?

Kevin Marois26-Nov-18 10:21

26-Nov-18 10:21

Yes, that I could do

If it's not broken, fix it until it is.
Everything makes sense in someone's mind.
Ya can't fix stupid.

David Crow26-Nov-18 10:26

26-Nov-18 10:26

In your Android code, try to connect to that site's IP address. If the site truly is not visible to the outside world, and your app can connect to it while using VPN, then you're one step closer to a solution.

Kevin Marois26-Nov-18 12:00

26-Nov-18 12:00

Good idea. I'll give that a try.

Thanks

If it's not broken, fix it until it is.
Everything makes sense in someone's mind.
Ya can't fix stupid.

Mycroft Holmes26-Nov-18 14:47

Mycroft Holmes

26-Nov-18 14:47

Cat skinned or possibly drowned in milk.

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

Richard MacCutchan26-Nov-18 22:14

26-Nov-18 22:14

Kevin Marois wrote:
We only want internal users to run the app.

Internal users are any users that are on your company network. Whether they come in via VPN or direct they are seen as the same at the network level. The only suggestion I can find about this is comparing the IP address before and after connection; but it sounds as if that is unlikely to be possible in your case.

David Crow26-Nov-18 7:54

26-Nov-18 7:54

This may be one of those issues where the OSI model comes in to play. Depending on which layer your VPN is operating under, you may not be able to acquire such information.

What exactly are you trying to keep from happening?

Kevin Marois26-Nov-18 8:26