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Posted 30 Dec 2012

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Check whether network is available on Android phone

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4.92/5 (32 votes)
30 Dec 2012CPOL
This code snippet checks whether network is available on an Android phone.

Introduction

In some Android applications, they can be run properly once the network on device is enable. Or, Android developers want to check the network status before proceed. The simple code snippet I will show today is so simple but sometime it will take you a little bit of time to find/research. 

This routine was run and tested as well on Android 2.2 (API 8) 

Using the code

Java
/**
 * Checks whether the network is available on Android device.
 * If the network signal is very low, it will be evaluated as NOT available.
 * This routine will check both MOBILE and WIFI signal.
 * If both of them are in disable status, <code>false</code> will be return absolutely.
 * </p>
 * Return <code>true</code> if the network is available. Otherwise, return <code>false</code>.
 * </p>
 * 
 * @param ctx Context.
 * 
 * @return <code>True</code> : the network is available.</br>
 *         <code>False</code>: the network is NOT available.
 */
 public static boolean isNetworkAvailable(Context ctx) {
	ConnectivityManager connMgr = (ConnectivityManager)ctx.getSystemService(Context.CONNECTIVITY_SERVICE);
	if(connMgr.getNetworkInfo(ConnectivityManager.TYPE_WIFI).isConnected() ||
		connMgr.getNetworkInfo(ConnectivityManager.TYPE_MOBILE).isConnected()){
			return true;
	}
		
	return false;
 } 

History

First release on Dec 30, 2012.

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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Comments and Discussions

 
QuestionNcie Pin
Real Hyder3-Oct-13 2:12
MemberReal Hyder3-Oct-13 2:12 
GeneralMy vote of 4 Pin
GOLDENPrinciple11-Sep-13 5:45
MemberGOLDENPrinciple11-Sep-13 5:45 
thanks for you articals. i have no idea before read it. and now i have done it..
Questionwifi problem Pin
dzyssssss22-Aug-13 15:32
Memberdzyssssss22-Aug-13 15:32 
SuggestionRequiers permission Pin
Member 1006643320-May-13 19:41
MemberMember 1006643320-May-13 19:41 
GeneralMy vote of 5 Pin
Phat (Phillip) H. VU6-Apr-13 22:29
MemberPhat (Phillip) H. VU6-Apr-13 22:29 
GeneralHelpful Pin
Gremz21-Feb-13 15:02
MemberGremz21-Feb-13 15:02 
GeneralMy vote of 5 Pin
WhiteOsoBDN18-Feb-13 23:45
MemberWhiteOsoBDN18-Feb-13 23:45 
GeneralMy vote of 5 Pin
Bandi Ramesh15-Feb-13 23:52
MemberBandi Ramesh15-Feb-13 23:52 
GeneralMy vote of 5 Pin
kksrinivasan8922-Jan-13 19:34
Memberkksrinivasan8922-Jan-13 19:34 
GeneralMy vote of 5 Pin
uyentran311@yahoo.com10-Jan-13 14:47
Memberuyentran311@yahoo.com10-Jan-13 14:47 
GeneralRe: My vote of 5 Pin
WebMaster10-Jan-13 14:55
MemberWebMaster10-Jan-13 14:55 
GeneralMy vote of 5 Pin
Thong Nguyen883-Jan-13 14:15
MemberThong Nguyen883-Jan-13 14:15 
GeneralRe: My vote of 5 Pin
WebMaster10-Jan-13 14:55
MemberWebMaster10-Jan-13 14:55 
GeneralMy vote of 5 Pin
Member 97262843-Jan-13 3:55
MemberMember 97262843-Jan-13 3:55 
GeneralRe: My vote of 5 Pin
WebMaster10-Jan-13 14:56
MemberWebMaster10-Jan-13 14:56 
GeneralMy vote of 5 Pin
WebMaster30-Dec-12 3:17
MemberWebMaster30-Dec-12 3:17 

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