Check if internet is available

4 votes · 2 comments

This function will return true if you can access the internet (or false if you can't). You can change the parameter being return when roaming (read the comments).

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 · download/*
* @return boolean return true if the application can access the internet
*/
private boolean haveInternet(){
	NetworkInfo info = ((ConnectivityManager)getSystemService(Context.CONNECTIVITY_SERVICE)).getActiveNetworkInfo();
	if (info==null || !info.isConnected()) {
		return false;
	}
	if (info.isRoaming()) {
		// here is the roaming option you can change it if you want to disable internet while roaming, just return false
		return true;
	}
	return true;
}

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2 Comments

tdabija

I think it is: NetworkInfo info = (NetworkInfo) getSystemService(CONNECTIVITY_SERVICE);

Reply · March 14, 2011, 3:49 p.m.

metakaram

The correct line would be:

NetworkInfo info = ((ConnectivityManager)getSystemService(Context.CONNECTIVITY_SERVICE)).
    getActiveNetworkInfo();

The only change are the brackets around the cast and until .getActiveNetworkInfo().

Edit: Thanks, the snippet was updated accordingly.

Reply · March 14, 2011, 3:59 p.m.