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Objective

Main objective of this tutorial is to help you to get Cellular Network information.

 

Step 1 Create Connectivity Class

First we create new class in our Android Project named Connectivity. This Class used for checking the Cellular Network Information.

public class Connectivity {
	/*
	 * These constants aren't yet available in my API level (7), but I need to
	 * handle these cases if they come up, on newer versions
	 */
	public static final int NETWORK_TYPE_EHRPD = 14; // Level 11
	public static final int NETWORK_TYPE_EVDO_B = 12; // Level 9
	public static final int NETWORK_TYPE_HSPAP = 15; // Level 13
	public static final int NETWORK_TYPE_IDEN = 11; // Level 8
	public static final int NETWORK_TYPE_LTE = 13; // Level 11

	/**
	 * Check if there is any connectivity
	 * 
	 * @param context
	 * @return
	 */
	public static boolean isConnected(Context context) {
		ConnectivityManager cm = (ConnectivityManager) context
				.getSystemService(Context.CONNECTIVITY_SERVICE);
		NetworkInfo info = cm.getActiveNetworkInfo();
		return (info != null && info.isConnected());
	}

	/**
	 * Check if there is fast connectivity
	 * 
	 * @param context
	 * @return
	 */
	public static String isConnectedFast(Context context) {
		ConnectivityManager cm = (ConnectivityManager) context
				.getSystemService(Context.CONNECTIVITY_SERVICE);
		NetworkInfo info = cm.getActiveNetworkInfo();

		if ((info != null && info.isConnected())) {
			return Connectivity.isConnectionFast(info.getType(),
					info.getSubtype());
		} else
			return "No NetWork Access";

	}

	/**
	 * Check if the connection is fast
	 * 
	 * @param type
	 * @param subType
	 * @return
	 */
	public static String isConnectionFast(int type, int subType) {
		if (type == ConnectivityManager.TYPE_WIFI) {
			System.out.println("CONNECTED VIA WIFI");
			return "CONNECTED VIA WIFI";
		} else if (type == ConnectivityManager.TYPE_MOBILE) {
			switch (subType) {
			case TelephonyManager.NETWORK_TYPE_1xRTT:
				return "NETWORK TYPE 1xRTT"; // ~ 50-100 kbps
			case TelephonyManager.NETWORK_TYPE_CDMA:
				return "NETWORK TYPE CDMA (3G) Speed: 2 Mbps"; // ~ 14-64 kbps
			case TelephonyManager.NETWORK_TYPE_EDGE:
				return "NETWORK TYPE EDGE (2.75G) Speed: 100-120 Kbps"; // ~ 50-100 kbps							
			case TelephonyManager.NETWORK_TYPE_EVDO_0:
				return "NETWORK TYPE EVDO_0"; // ~ 400-1000 kbps
			case TelephonyManager.NETWORK_TYPE_EVDO_A:
				return "NETWORK TYPE EVDO_A"; // ~ 600-1400 kbps
			case TelephonyManager.NETWORK_TYPE_GPRS:
				return "NETWORK TYPE GPRS (2.5G) Speed: 40-50 Kbps"; // ~ 100 kbps
			case TelephonyManager.NETWORK_TYPE_HSDPA:
				return "NETWORK TYPE HSDPA (4G) Speed: 2-14 Mbps"; // ~ 2-14 Mbps
			case TelephonyManager.NETWORK_TYPE_HSPA:
				return "NETWORK TYPE HSPA (4G) Speed: 0.7-1.7 Mbps"; // ~ 700-1700 kbps
			case TelephonyManager.NETWORK_TYPE_HSUPA:
				return "NETWORK TYPE HSUPA (3G) Speed: 1-23 Mbps"; // ~ 1-23 Mbps
			case TelephonyManager.NETWORK_TYPE_UMTS:
				return "NETWORK TYPE UMTS (3G) Speed: 0.4-7 Mbps"; // ~ 400-7000 kbps
				// NOT AVAILABLE YET IN API LEVEL 7
			case Connectivity.NETWORK_TYPE_EHRPD:
				return "NETWORK TYPE EHRPD"; // ~ 1-2 Mbps
			case Connectivity.NETWORK_TYPE_EVDO_B:
				return "NETWORK_TYPE_EVDO_B"; // ~ 5 Mbps
			case Connectivity.NETWORK_TYPE_HSPAP:
				return "NETWORK TYPE HSPA+ (4G) Speed: 10-20 Mbps"; // ~ 10-20 Mbps
			case Connectivity.NETWORK_TYPE_IDEN:
				return "NETWORK TYPE IDEN"; // ~25 kbps
			case Connectivity.NETWORK_TYPE_LTE:
				return "NETWORK TYPE LTE (4G) Speed: 10+ Mbps"; // ~ 10+ Mbps
				// Unknown
			case TelephonyManager.NETWORK_TYPE_UNKNOWN:
				return "NETWORK TYPE UNKNOWN";
			default:
				return "";
			}
		} else {
			return "";
		}
	}

}

For More About ConnectivityManager class please refer:

For More About TelephonyManager class please refer:

 

Step 2 isConnectedFast() Method

Now in your Main Activity class call the isConnectedFast() method for retrieving the Network information and set this information into Text View.

public class MainActivity extends Activity {
 
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
 
TextView tvNetworkInfo = (TextView) findViewById(R.id.tvNetworkInfo);
 
String type = Connectivity.isConnectedFast(MainActivity.this);
 
System.out.println("Network :: " + type);
 
tvNetworkInfo.setText(type);
 
}
}
 

Step 3 Add Permission to AndroidManifest.xml file

Also make sure to add this permission to you AndroidManifest.xml

<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"></uses-permission>

I hope you enjoy this tutorial and it would be helpful to you.

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