Android

Re: I would like help wiith an example I cannot get working

21-Aug-14 11:08

See the answer on this[^] page. In Xamarin, R is replaced by the less cryptic identifier Resource.

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turbosupramk322-Aug-14 2:03

Re: I would like help wiith an example I cannot get working

22-Aug-14 2:03

Wow! So with Xamarin, I can write in C#, and it will compile to Android native code? Or even IOS code? And I can write in Visual Studio? If this is correct, sign me up!

Ravi Bhavnani22-Aug-14 2:35

Re: I would like help wiith an example I cannot get working

22-Aug-14 2:35

turbosupramk3 wrote:
I can write in C#, and it will compile to Android native code? Or even IOS code?

Yes. For Android, the output is IL that is JIT compiled by Mono at run time. For iOS, IL is compiled (by using a Mac) to machine code at build time.

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turbosupramk322-Aug-14 2:40

Re: I would like help wiith an example I cannot get working

22-Aug-14 2:40

Ummm, that is spectacular, I really hope it works as well as I am expecting it to from what you've said and what I read about Xamarin. I'm currently letting the automated installer do its thing and can't wait to try to write c# in VS and then compile to native Android code after a week of pissing in the wind with Android Studio and Eclipse.

Does Xamarin allow you to test with the Android virtual machines?

Ravi Bhavnani22-Aug-14 2:48

Re: I would like help wiith an example I cannot get working

22-Aug-14 2:48

turbosupramk3 wrote:
Does Xamarin allow you to test with the Android virtual machines?

Yes. I recommend using Genymotion. Other emulators suck.

I just finished building a successful mobile app POC for a non-trivial feature of our application. My colleague and I targeted iOS and Android. We used Xamarin Forms (that allows shared UI code) for most of our app, as well as custom renderers to build platform specific behaviors for some controls. I'm very positive about Xamarin and am in the process of buying it for myself for use at home.

Note, Visual Studio integration is only offered in the Business version, which retails for $1000. I plan to use XStudio for my personal purchase - that license costs $300. Both licenses are perpetual, but support ends after one year, unless renewed. Xamarin also offers monthly trials. See https://store.xamarin.com/[^].

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turbosupramk322-Aug-14 3:00

Re: I would like help wiith an example I cannot get working

22-Aug-14 3:00

Oh, it's not freeware? Wikipedia implied it was freeware like mono.

I can't spend $300 or $1000 to learn to develop, I may never have an app in the app store, so that's quite disappointing.

I guess I will cancel the download manager Frown | :(

Ravi Bhavnani22-Aug-14 4:07

Re: I would like help wiith an example I cannot get working

22-Aug-14 4:07

turbosupramk3 wrote:
Oh, it's not freeware?

Not until they get acquired by Microsoft (as is rumored). Then it'll likely become part of Visual Studio.

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Richard MacCutchan21-Aug-14 22:07

Re: I would like help wiith an example I cannot get working

21-Aug-14 22:07

I am facing this same problem with eclipse and it seems to be something to do with the level of the support libraries included in the project. If the compiler cannot resolve items in the resource tree then the R class does not get generated and R is left undefined. I did get it to build once by changing some of the elements in the res/values-vXX tree, but is is not obvious which ones to change. I'm afraid that both eclipse and AndroidStudio seem to be overly engineered, and the slightest mismatch prevents the code from building. I would suggest you try asking the author of the sample.

Richard MacCutchan21-Aug-14 23:10

Re: I would like help wiith an example I cannot get working

21-Aug-14 23:10

Check that you have the highest level of the support libraries available and that you are using the highest level to compile the project.

turbosupramk322-Aug-14 2:06

Re: I would like help wiith an example I cannot get working

22-Aug-14 2:06

This may be a dumb question, but I'm not 100% sure how to do that. My project build target is Android 4.4, api 20.

Is that what you mean?

Richard MacCutchan22-Aug-14 3:11

Re: I would like help wiith an example I cannot get working

22-Aug-14 3:11

Exactly so. I was previously setting mine to the lower level and that failed, but by sticking with the defaults that eclipse sets it seems to work. Unfortunately, I am still learning as well so I cannot offer a better suggestion. You may like to look at some of the recent offerings in the Android articles section as there are quite a few targetting beginners, so some of the authors may be able to help.

Dominic Burford15-Sep-14 2:30

Dominic Burford

15-Sep-14 2:30

R refers to your application Resources. All UI elements are assigned a unique ID which you can then use in your applicaition code to refer to the UI element. All these IDs are part of the Resource class.

set receiver for Serversocket in android?

Member 1102458520-Aug-14 2:54

Member 11024585

20-Aug-14 2:54

I am working on app in which I am reading data from a specific port of android. Some one send data on port from web back end and i read it on android device.I want to set a receiver for this but i dont know what action is required for this. My code is here.

public class MainActivity extends Activity {

Socket socket;
private ServerSocket serverSocket;
BufferedReader in = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
new Task().execute();

}
private class Task extends AsyncTask
<void, integer,="" void=""> {
@Override
protected Void doInBackground(Void... params) {
try {
serverSocket = new ServerSocket(6066);

} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

try {
while (true) {
socket = serverSocket.accept();
try {
in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
String msg = null;
try {
StringBuilder total = new StringBuilder();
String line;
while ((line = in.readLine()) != null) {
total.append(line);
}
msg = total.toString();
Log.d("NETWORK-RECEIVE","Message readed!:"+msg);
} catch (IOException e) {
e.printStackTrace();
Log.d("NETWORK-RECEIVE", "Something goes wrong: IOException");
}
} finally {
socket.close();
}
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
finally {
try {
serverSocket.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}

return null;
}
}
}

can some one help me in this how i can set out a broadcast receiver for this pupose,and what intent action is required for this?

creating menu using c# android

Baburc19-Aug-14 7:03

19-Aug-14 7:03

Hai

I create app in Api 10 (2.3.5) for option menu

I use this code

Xml called MainMenu was created

public bool onCreateOptionsMenu(Menu menu)
{
MenuInflater inflater = getMenuInflater();
inflater.inflate(Resource.Layout.MainMenu, menu);
return true;
}

I get getMenuInflater() not exists in current context

please tell me what is the problem.
thanks

Richard MacCutchan19-Aug-14 7:35

19-Aug-14 7:35

You are most likely missing a using statement.

Baburc20-Aug-14 6:15

20-Aug-14 6:15

Thanks for reply
I use these namespace
using System;
using Android.Content;
using Android.Runtime;
using Android.Views;
using Android.Widget;
using Android.OS;
using Android.Graphics;
using Android.App;
please tell me which is missing

Ravi Bhavnani19-Aug-14 11:18

19-Aug-14 11:18

There's no need to use getMenuInflater(). In Xamarin, MenuInflater is already a property of your Activity.

/ravi

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Baburc20-Aug-14 6:04

20-Aug-14 6:04

thanks for reply
please can you tell me the syntax to create menu in xamarin

-- modified 20-Aug-14 12:16pm.

Ravi Bhavnani20-Aug-14 6:16

20-Aug-14 6:16

Xamarin is no different from Java (for the most part). It's just that you express your logic in C# vs. Java, like so:

public override bool OnPrepareOptionsMenu
    (IMenu menu)
{
   this.MenuInflater.Inflate (Resource.Layout.MainMenu, menu);
   return base.OnPrepareOptionsMenu (menu);
}

/ravi

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Baburc20-Aug-14 6:26

20-Aug-14 6:26

Thank You very much
its working

Ravi Bhavnani20-Aug-14 6:29

How to test an Andriod application with php web services.

20-Aug-14 6:29

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pandu web dev19-Aug-14 3:23

pandu web dev

19-Aug-14 3:23

hi,

I am a php developer. I was given a task of testing a small size android application developed by an android developer. I have written php web services for it to store data in mysql.

The application is crashing some times and for some inputs.

I don't know, how to test it properly?

What techniques i should use to test an andriod app?

Re: How to test an Andriod application with php web services.

Richard MacCutchan19-Aug-14 5:07

How can I get started developing in Eclipse for Android?

19-Aug-14 5:07

pandu web dev wrote:
The application is crashing some times and for some inputs.

Then you need to go back to the Android developer and get him/her to fix the application.

turbosupramk318-Aug-14 4:01