Check whether the device is in roaming or not after 2 seconds in android

Question

I am developing an app in android where i need to check that whether the device is in roaming or not. when i use this code,

Handler m = new Handler();

        m.postDelayed(new Runnable()
        { 
            public void run() 
            { 
                        if(telephonyManager.isNetworkRoaming())
                        {
                            Toast.makeText(getApplicationContext(), "Network is in Roaming", Toast.LENGTH_LONG).show();
                        }
                        else
                        {
                            Toast.makeText(getApplicationContext(), "Network not in Roaming", Toast.LENGTH_LONG).show();
                        }
            } 
        }, 2000);

But it keeps on printing the toast after every 2 seconds. I want the toast to be printed only when the cell location is changed from normal network to roaming.

You can put this code in the onReceive method of BroadcastReceiver. Then it will always be checked automatically. Declare that receiver in your manifest file. — Yogesh Somani, Oct 06 '12 at 10:20

score 0 · Answer 1 · answered Oct 06 '12 at 10:30

0

Declare a BroadcastReceiver:

  public class ConnectivityChangedReceiver extends BroadcastReceiver{

  @Override
  public void onReceive( Context context, Intent intent )
  {
     //call the method of showing toast on network roaming changed. Make sure that method is in another activity. 
  }
  }

Declare this receiver in manifest :

    <receiver android:name="com.yourproject.service.ConnectivityChangedReceiver"
        android:label="NetworkConnection">
        <intent-filter>
            <action android:name="android.net.conn.CONNECTIVITY_CHANGE"/>
        </intent-filter> 
    </receiver>

answered Oct 06 '12 at 10:30

Yogesh Somani

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what if i call a service from the onReceive method, that will check for roaming.? – Oct 06 '12 at 11:29
yes you can do that too but broadcast receiver itself checks for this kind of changes I think. – Yogesh Somani Oct 06 '12 at 12:29

Check whether the device is in roaming or not after 2 seconds in android

1 Answers1