how to get phone number from my android app?

hi ,
i have written this simple code to get phone number programaticly

package com.andriod.myapp;
import android.app.Activity;  
import android.content.Context;  
import android.os.Bundle;  
import android.telephony.TelephonyManager;  
import android.view.View;
import android.widget.Button;
import android.widget.TextView;  
  
public class PhonenumberActivity extends Activity {  
  
    String mPhoneNumber;  
      
    public void onCreate(Bundle savedInstanceState) {  
          
        super.onCreate(savedInstanceState);  
           setContentView(R.layout.main);  
           Button buttonLoadImage = (Button)findViewById(R.id.check);
           buttonLoadImage.setOnClickListener(new Button.OnClickListener(){
         	  public void onClick(View arg0) {  
         		  
         		  
         	        TelephonyManager tMgr =(TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);  
         	          mPhoneNumber = tMgr.getLine1Number();  
         	        TextView t=(TextView)findViewById(R.id.targeturi);  
         	        t.setText(mPhoneNumber);  
         		  
         	  }});
           }
        
   
      
}

it doesnt give any output...

any idea?

Have you verified that the code is being run?

Did you had set permission in manifest as permission READ_PHONE_STATE

hi,

yes,i hav given permission in manifest.
still no output

and is it possible to get the andriod version,model of phone and network from my app code??
if yes how?

Tim Moores wrote:Have you verified that the code is being run?

i tried to run but no output....many say dat it is running while some say its not sure

and is it possible to get the andriod version,model of phone and network from my app code??
if yes how?

and is it possible to get the andriod version,model of phone and network from my app code?

Check android.os.Build.VERSION, android.os.Build.MODEL, android.os.Build.MANUFACTURER and android.net.ConnectivityManager.

Your first step should be to verify positively that the code runs, for example by writing something to the Log.