【android】Android检查是否已经链接到网络

 1 ConnectivityManager con=(ConnectivityManager)getSystemService(Activity.CONNECTIVITY_SERVICE);
 2 boolean wifi=con.getNetworkInfo(ConnectivityManager.TYPE_WIFI).isConnectedOrConnecting();
 3 boolean internet=con.getNetworkInfo(ConnectivityManager.TYPE_MOBILE).isConnectedOrConnecting();
 4 if(wifi|internet){
 5     //执行相关操做
 6 }else{
 7     Toast.makeText(getApplicationContext(),
 8             "亲，网络连了么？", Toast.LENGTH_LONG)
 9             .show();
10 }
11 /*
12 另外须要权限
13 <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
14 */

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