Android determines network connection and android Network Connection

Android determines network connection and android Network Connection

1 import android. content. context; 2 import android.net. connectivityManager; 3 import android.net. networkInfo; 4 5/** 6 * network tool to add a network status license: <uses-permission 7 * android: name = "android. permission. ACCESS_NETWORK_STATE "/> 8*9 * @ author benny10 * 11 */12 public class NetworkUtil {13 14/** 15 * network connection status 16 * <uses-permission android: name = "android. permission. ACCESS_NETWORK_STATE "/> 17 * @ param context18 * program upstream/downstream 19 * @ return true: 20 */21 public static boolean isNetworkConnected (Context context) {22 if (context! = Null) {23 ConnectivityManager connectivityManager = (ConnectivityManager) context. getSystemService (Context. CONNECTIVITY_SERVICE); 24 25 NetworkInfo networkInfo = connectivityManager. getActiveNetworkInfo (); 26 if (networkInfo! = Null) {27 return networkInfo. isAvailable (); 28} 29} 30 return false; 31} 32 33/** 34 * WiFi network connection status 35 * <uses-permission android: name = "android. permission. ACCESS_WIFI_STATE "/> 36 * @ param context37 * program Context 38 * @ return true: 39 */40 public static boolean isWifiConnected (context) {41 if (Context! = Null) {42 ConnectivityManager connectivityManager = (ConnectivityManager) context. getSystemService (Context. CONNECTIVITY_SERVICE); 43 44 NetworkInfo networkInfo = connectivityManager. getNetworkInfo (ConnectivityManager. TYPE_WIFI); 45 if (networkInfo! = Null) {46 return networkInfo. isAvailable (); 47} 48} 49 return false; 50} 51 52/** 53 * Mobile network connection status 54 * <uses-permission android: name = "android. permission. ACCESS_NETWORK_STATE "/> 55*56 * @ param context57 * program Context 58 * @ return true: 59 */60 public static boolean isMobileConnected (context) {61 if (Context! = Null) {62 ConnectivityManager connectivityManager = (ConnectivityManager) context. getSystemService (Context. CONNECTIVITY_SERVICE); 63 64 NetworkInfo networkInfo = connectivityManager. getActiveNetworkInfo (); 65 if (networkInfo! = Null & networkInfo. getType () = ConnectivityManager. TYPE_MOBILE) {66 return networkInfo. isAvailable (); 67} 68} 69 return false; 70} 71 72/** 73 * Get network connection type 74 * @ param context 75 * @ return ConnectivityManager. TYPE_XXXX76 */77 public static int getConnectedType (Context context) {78 if (context! = Null) {79 ConnectivityManager connectivityManager = (ConnectivityManager) context. getSystemService (Context. CONNECTIVITY_SERVICE); 80 NetworkInfo mNetworkInfo = connectivityManager. getActiveNetworkInfo (); 81 if (mNetworkInfo! = Null & mNetworkInfo. isAvailable () {82 return mNetworkInfo. getType (); 83} 84} 85 return-1; 86} 87 88}