ConnectivityManager getNetworkInfo int deprecated

Question

Using compileSdkVersion 23  however trying to support as far back as 9   getNetworkInfo int  was deprecated in 23  The suggestion was to use getAllNetworks   and getNetworkInfo Network  instead  However both of these require minimum of API 21   Is there a class that we can use in the support package that can assist with this   I know that a solution was proposed before  however the challenge of my minimum API requirements of 9 poses a problem

User · Answer

checking network status with target sdk 29     IntRange from   0  to   3  fun getConnectionType context  Context   Int       var result   0    Returns connection type  0  none  1  mobile data  2  wifi     val cm   context getSystemService Context CONNECTIVITY SERVICE  as ConnectivityManager     if  Build VERSION SDK INT  gt   Build VERSION CODES M             val capabilities               cm getNetworkCapabilities cm activeNetwork          if  capabilities    null                if  capabilities hasTransport NetworkCapabilities TRANSPORT WIFI                     result   2               else if  capabilities hasTransport NetworkCapabilities TRANSPORT CELLULAR                     result   1               else if  capabilities hasTransport NetworkCapabilities TRANSPORT VPN                     result   3                                else            val activeNetwork   cm activeNetworkInfo         if  activeNetwork    null                   connected to the internet             if  activeNetwork type     ConnectivityManager TYPE WIFI                    result   2               else if  activeNetwork type     ConnectivityManager TYPE MOBILE                    result   1               else if  activeNetwork type     ConnectivityManager TYPE VPN                    result   3                                   return result

User · Answer

connectivityManager getActiveNetwork   is not found in below android M  API 28   networkInfo getState   is deprecated above android L   So  final answer is   public static boolean isConnectingToInternet Context mContext        if  mContext    null  return false       ConnectivityManager connectivityManager    ConnectivityManager  mContext getSystemService Context CONNECTIVITY SERVICE       if  connectivityManager    null            if  Build VERSION SDK INT  gt   Build VERSION CODES LOLLIPOP                final Network network   connectivityManager getActiveNetwork                if  network    null                    final NetworkCapabilities nc   connectivityManager getNetworkCapabilities network                    return  nc hasTransport NetworkCapabilities TRANSPORT CELLULAR                             nc hasTransport NetworkCapabilities TRANSPORT WIFI                            else               NetworkInfo   networkInfos   connectivityManager getAllNetworkInfo                for  NetworkInfo tempNetworkInfo   networkInfos                    if  tempNetworkInfo isConnected                          return true                                                      return false

User · Answer

There is an update to this answer as of March 2020 that supports API 15 through API 29  you can find it following to the original answer  Answer February 2019 To check if you re online  boolean isOnline            Checking internet connectivity     ConnectivityManager connectivityMgr    ConnectivityManager  this getSystemService Context CONNECTIVITY SERVICE       NetworkInfo activeNetwork   null      if  connectivityMgr    null            activeNetwork   connectivityMgr getActiveNetworkInfo              return activeNetwork    null     Kotlin  fun isOnline    Boolean       val connectivityMgr   getSystemService CONNECTIVITY SERVICE  as ConnectivityManager      if  Build VERSION SDK INT  lt  Build VERSION CODES P            return connectivityMgr activeNetworkInfo    null        else            for  network in connectivityMgr allNetworks       added in API 21  Lollipop              val networkCapabilities  NetworkCapabilities                    connectivityMgr getNetworkCapabilities network              return  networkCapabilities   hasCapability NetworkCapabilities NET CAPABILITY INTERNET   amp  amp                      networkCapabilities hasCapability NetworkCapabilities NET CAPABILITY VALIDATED   amp  amp                       networkCapabilities hasTransport NetworkCapabilities TRANSPORT WIFI                                 networkCapabilities hasTransport NetworkCapabilities TRANSPORT CELLULAR                                 networkCapabilities hasTransport NetworkCapabilities TRANSPORT ETHERNET                        return false    To get the type of internet connectivity before after android M void internetType            Checking internet connectivity     ConnectivityManager connectivityMgr    ConnectivityManager  this getSystemService Context CONNECTIVITY SERVICE       NetworkInfo activeNetwork   null      if  connectivityMgr    null            activeNetwork   connectivityMgr getActiveNetworkInfo            if  Build VERSION SDK INT  gt   Build VERSION CODES M                NetworkCapabilities nc   connectivityMgr getNetworkCapabilities connectivityMgr getActiveNetwork                 if  nc hasTransport NetworkCapabilities TRANSPORT CELLULAR                        connected to mobile data               else if  nc hasTransport NetworkCapabilities TRANSPORT WIFI                        connected to wifi                         else               if  activeNetwork getType      ConnectivityManager TYPE WIFI                       connected to wifi               else if  activeNetwork getType      ConnectivityManager TYPE MOBILE                       connected to mobile data                                  All cases requires a permission to access network state  lt uses-permission android name  quot android permission ACCESS NETWORK STATE quot    gt    Update December 2020  As NetworkInfo is deprecated and as of API 29 from now we have to use ConnectivityManager NetworkCallback with its network state change onAvailable    amp  onLost   callbacks  Usage   You can either use this library  or directly use the below utility class which is a part of this library   Features  It s LifeCycle conscious by implementing LifecycleObserver to avoid memory leakage by doing some cleanup in onDestroy   method  It supports from API 15  Ice Cream Sandwich  through API 29  Android Q  For APIs prior to API 21  it uses a context-based BoradcastReceiver and NetworkInfo  and uses ConnectivityManager NetworkCallback for API 21 and above  When both WiFi and cellular networks are on  then the connectivity listener won t interrupt when the WiFi is disconnected while transitioning to the cellular network  When the cellular network is on  then the connectivity listener won t interrupt when the WiFi is connected and being the active network  as this is the preferred network   If you re going to use the library  then no need to include this permission android permission ACCESS NETWORK STATE  but you have to include it if you re going to use the utility class   Capabilities  Get the current connectivity status  online   offline   Continuous checking listening to the internet connection and triggering a callback when the device goes offline or online  Get the type of the active internet connection  WiFi or Cellular   Get the type of all available networks  WiFi or Cellular    gt  gt  Only supported on API 21  Get the number of all available networks  gt  gt  Only supported on API 21    RequiresApi api   Build VERSION CODES ICE CREAM SANDWICH MR1  public class ConnectionUtil implements LifecycleObserver        private static final String TAG    quot LOG TAG quot       private ConnectivityManager mConnectivityMgr      private Context mContext      private NetworkStateReceiver mNetworkStateReceiver                     boolean indicates if my device is connected to the internet or not               private boolean mIsConnected   false      private ConnectionMonitor mConnectionMonitor                   Indicates there is no available network              private static final int NO NETWORK AVAILABLE   -1                   Indicates this network uses a Cellular transport              public static final int TRANSPORT CELLULAR   0                   Indicates this network uses a Wi-Fi transport              public static final int TRANSPORT WIFI   1        public interface ConnectionStateListener           void onAvailable boolean isAvailable               public ConnectionUtil Context context            mContext   context          mConnectivityMgr    ConnectivityManager  context getSystemService Context CONNECTIVITY SERVICE             AppCompatActivity  mContext  getLifecycle   addObserver this            if  Build VERSION SDK INT  gt   Build VERSION CODES LOLLIPOP                mConnectionMonitor   new ConnectionMonitor                NetworkRequest networkRequest   new NetworkRequest Builder                        addTransportType NetworkCapabilities TRANSPORT CELLULAR                       addTransportType NetworkCapabilities TRANSPORT WIFI                       build                mConnectivityMgr registerNetworkCallback networkRequest  mConnectionMonitor                                     Returns true if connected to the internet  and false otherwise                lt p gt         NetworkInfo is deprecated in API 29        https   developer android com reference android net NetworkInfo         lt p gt         getActiveNetworkInfo   is deprecated in API 29        https   developer android com reference android net ConnectivityManager getActiveNetworkInfo           lt p gt         getNetworkInfo int  is deprecated as of API 23        https   developer android com reference android net ConnectivityManager getNetworkInfo int              public boolean isOnline              mIsConnected   false           if  Build VERSION SDK INT  lt  Build VERSION CODES P                   Checking internet connectivity             NetworkInfo activeNetwork   null              if  mConnectivityMgr    null                    activeNetwork   mConnectivityMgr getActiveNetworkInfo       Deprecated in API 29                           mIsConnected   activeNetwork    null             else               Network   allNetworks   mConnectivityMgr getAllNetworks       added in API 21  Lollipop               for  Network network   allNetworks                    NetworkCapabilities networkCapabilities   mConnectivityMgr getNetworkCapabilities network                   if  networkCapabilities    null                        if  networkCapabilities hasCapability NetworkCapabilities NET CAPABILITY INTERNET   amp  amp                              networkCapabilities hasCapability NET CAPABILITY VALIDATED                           if  networkCapabilities hasTransport NetworkCapabilities TRANSPORT WIFI                                     networkCapabilities hasTransport NetworkCapabilities TRANSPORT CELLULAR                                     networkCapabilities hasTransport NetworkCapabilities TRANSPORT ETHERNET                               mIsConnected   true                                                      return mIsConnected                          Returns         lt p gt   lt p gt          lt p gt  lt p gt  NO NETWORK AVAILABLE  gt  gt  gt  when you re offline         lt p gt  lt p gt  TRANSPORT CELLULAR  gt  gt  When Cellular is the active network         lt p gt  lt p gt  TRANSPORT WIFI  gt  gt  When Wi-Fi is the Active network         lt p gt              public int getActiveNetwork              NetworkInfo activeNetwork   mConnectivityMgr getActiveNetworkInfo       Deprecated in API 29         if  activeNetwork    null               if  Build VERSION SDK INT  gt   Build VERSION CODES M                    NetworkCapabilities capabilities   mConnectivityMgr getNetworkCapabilities mConnectivityMgr getActiveNetwork                     if  capabilities    null                      if  capabilities hasTransport NetworkCapabilities TRANSPORT CELLULAR                                connected to mobile data                         return TRANSPORT CELLULAR                         else if  capabilities hasTransport NetworkCapabilities TRANSPORT WIFI                                connected to wifi                         return TRANSPORT WIFI                                       else                   if  activeNetwork getType      ConnectivityManager TYPE MOBILE       Deprecated in API 28                        connected to mobile data                     return TRANSPORT CELLULAR                     else if  activeNetwork getType      ConnectivityManager TYPE WIFI       Deprecated in API 28                        connected to wifi                     return TRANSPORT WIFI                                          return NO NETWORK AVAILABLE               RequiresApi api   Build VERSION CODES LOLLIPOP      public int getAvailableNetworksCount              int count   0           if  android os Build VERSION SDK INT  gt   android os Build VERSION CODES LOLLIPOP                Network   allNetworks   mConnectivityMgr getAllNetworks       added in API 21  Lollipop              for  Network network   allNetworks                    NetworkCapabilities networkCapabilities   mConnectivityMgr getNetworkCapabilities network                   if  networkCapabilities    null                      if  networkCapabilities hasTransport NetworkCapabilities TRANSPORT WIFI                                 networkCapabilities hasTransport NetworkCapabilities TRANSPORT CELLULAR                           count                                      return count                   RequiresApi api   Build VERSION CODES LOLLIPOP      public List lt Integer gt  getAvailableNetworks              List lt Integer gt  activeNetworks   new ArrayList lt  gt              Network   allNetworks     added in API 21  Lollipop          if  android os Build VERSION SDK INT  gt   android os Build VERSION CODES LOLLIPOP                allNetworks   mConnectivityMgr getAllNetworks                for  Network network   allNetworks                    NetworkCapabilities networkCapabilities   mConnectivityMgr getNetworkCapabilities network                   if  networkCapabilities    null                        if  networkCapabilities hasTransport NetworkCapabilities TRANSPORT WIFI                           activeNetworks add TRANSPORT WIFI                        if  networkCapabilities hasTransport NetworkCapabilities TRANSPORT CELLULAR                           activeNetworks add TRANSPORT CELLULAR                                                       return activeNetworks              public void onInternetStateListener ConnectionStateListener listener            if  Build VERSION SDK INT  lt  Build VERSION CODES LOLLIPOP                mNetworkStateReceiver   new NetworkStateReceiver listener               IntentFilter intentFilter   new IntentFilter ConnectivityManager CONNECTIVITY ACTION               mContext registerReceiver mNetworkStateReceiver  intentFilter              else               mConnectionMonitor setOnConnectionStateListener listener                          OnLifecycleEvent Lifecycle Event ON DESTROY      public void onDestroy             Log d TAG   quot onDestroy quot              AppCompatActivity  mContext  getLifecycle   removeObserver this            if  Build VERSION SDK INT  gt   Build VERSION CODES LOLLIPOP                if  mConnectionMonitor    null                  mConnectivityMgr unregisterNetworkCallback mConnectionMonitor             else               if  mNetworkStateReceiver    null                  mContext unregisterReceiver mNetworkStateReceiver                          public class NetworkStateReceiver extends BroadcastReceiver            ConnectionStateListener mListener           public NetworkStateReceiver ConnectionStateListener listener                mListener   listener                      Override         public void onReceive Context context  Intent intent                if  intent getExtras      null                     NetworkInfo activeNetworkInfo   mConnectivityMgr getActiveNetworkInfo       deprecated in API 29                                        activeNetworkInfo getState   deprecated in API 28                    NetworkInfo State CONNECTED deprecated in API 29                                       if   mIsConnected  amp  amp  activeNetworkInfo    null  amp  amp  activeNetworkInfo getState      NetworkInfo State CONNECTED                        Log d TAG   quot onReceive   quot     quot Connected To   quot    activeNetworkInfo getTypeName                         mIsConnected   true                      mListener onAvailable true                      else if  intent getBooleanExtra ConnectivityManager EXTRA NO CONNECTIVITY  Boolean FALSE                         if   isOnline                              mListener onAvailable false                           mIsConnected   false                                                                                 RequiresApi api   Build VERSION CODES LOLLIPOP      public class ConnectionMonitor extends ConnectivityManager NetworkCallback            private ConnectionStateListener mConnectionStateListener           void setOnConnectionStateListener ConnectionStateListener connectionStateListener                mConnectionStateListener   connectionStateListener                      Override         public void onAvailable  NonNull Network network                 if  mIsConnected                  return               Log d TAG   quot onAvailable   quot                 if  mConnectionStateListener    null                    mConnectionStateListener onAvailable true                   mIsConnected   true                                     Override         public void onLost  NonNull Network network                 if  getAvailableNetworksCount      0                    if  mConnectionStateListener    null                      mConnectionStateListener onAvailable false                   mIsConnected   false                                      Kotlin version  class ConnectionUtil var mContext  Context    LifecycleObserver        private val TAG    quot LOG TAG quot       companion object NetworkType                           Indicates this network uses a Cellular transport                      const val TRANSPORT CELLULAR   0                         Indicates this network uses a Wi-Fi transport                     const val TRANSPORT WIFI   1             private var mConnectivityMgr  ConnectivityManager    null            private var mContext  Context    null     private var mNetworkStateReceiver  NetworkStateReceiver    null                boolean indicates if my device is connected to the internet or not               private var mIsConnected   false     private var mConnectionMonitor  ConnectionMonitor    null                  Indicates there is no available network              private val NO NETWORK AVAILABLE   -1       interface ConnectionStateListener           fun onAvailable isAvailable  Boolean             init           mConnectivityMgr               mContext getSystemService Context CONNECTIVITY SERVICE  as ConnectivityManager          mContext as AppCompatActivity     lifecycle addObserver this          if  Build VERSION SDK INT  gt   Build VERSION CODES LOLLIPOP                mConnectionMonitor   ConnectionMonitor               val networkRequest   NetworkRequest Builder                    addTransportType NetworkCapabilities TRANSPORT CELLULAR                   addTransportType NetworkCapabilities TRANSPORT WIFI                   build               mConnectivityMgr   registerNetworkCallback networkRequest  mConnectionMonitor                                     Returns true if connected to the internet  and false otherwise               NetworkInfo is deprecated in API 29        https   developer android com reference android net NetworkInfo               getActiveNetworkInfo   is deprecated in API 29        https   developer android com reference android net ConnectivityManager getActiveNetworkInfo                 getNetworkInfo int  is deprecated as of API 23        https   developer android com reference android net ConnectivityManager getNetworkInfo int              fun isOnline    Boolean           mIsConnected   false         if  Build VERSION SDK INT  lt  Build VERSION CODES P                   Checking internet connectivity             var activeNetwork  NetworkInfo    null             if  mConnectivityMgr    null                    activeNetwork   mConnectivityMgr   activeNetworkInfo    Deprecated in API 29                           mIsConnected   activeNetwork    null           else               val allNetworks   mConnectivityMgr   allNetworks    added in API 21  Lollipop              for  network in allNetworks                    val networkCapabilities   mConnectivityMgr   getNetworkCapabilities network                  if  networkCapabilities    null                        if  networkCapabilities hasCapability NetworkCapabilities NET CAPABILITY INTERNET   amp  amp                          networkCapabilities hasCapability NetworkCapabilities NET CAPABILITY VALIDATED                                                 if  networkCapabilities hasTransport NetworkCapabilities TRANSPORT WIFI                                 networkCapabilities hasTransport NetworkCapabilities TRANSPORT CELLULAR                                 networkCapabilities hasTransport NetworkCapabilities TRANSPORT ETHERNET                            mIsConnected   true                                                   return mIsConnected                        Returns                NO NETWORK AVAILABLE  gt  gt  gt  when you re offline        TRANSPORT CELLULAR  gt  gt  When Cellular is the active network        TRANSPORT WIFI  gt  gt  When Wi-Fi is the Active network             fun getActiveNetwork    Int           val activeNetwork   mConnectivityMgr   activeNetworkInfo    Deprecated in API 29         if  activeNetwork    null  if  Build VERSION SDK INT  gt   Build VERSION CODES M                val capabilities   mConnectivityMgr   getNetworkCapabilities                  mConnectivityMgr   activeNetwork                           if  capabilities    null  if  capabilities hasTransport NetworkCapabilities TRANSPORT CELLULAR                        connected to mobile data                 return TRANSPORT CELLULAR               else if  capabilities hasTransport NetworkCapabilities TRANSPORT WIFI                        connected to wifi                 return TRANSPORT WIFI                         else               if  activeNetwork type    ConnectivityManager TYPE MOBILE       Deprecated in API 28                    connected to mobile data                 return TRANSPORT CELLULAR               else if  activeNetwork type    ConnectivityManager TYPE WIFI       Deprecated in API 28                    connected to wifi                 return TRANSPORT WIFI                                 return NO NETWORK AVAILABLE              RequiresApi api   Build VERSION CODES LOLLIPOP      fun getAvailableNetworksCount    Int           var count   0         if  Build VERSION SDK INT  gt   Build VERSION CODES LOLLIPOP                val allNetworks   mConnectivityMgr   allNetworks    added in API 21  Lollipop              for  network in allNetworks                    val networkCapabilities   mConnectivityMgr   getNetworkCapabilities network                  if  networkCapabilities    null  if  networkCapabilities hasTransport                          NetworkCapabilities TRANSPORT WIFI                                              networkCapabilities hasTransport NetworkCapabilities TRANSPORT CELLULAR                    count                                   return count             RequiresApi api   Build VERSION CODES LOLLIPOP      fun getAvailableNetworks    List lt Int gt            val activeNetworks  MutableList lt Int gt    ArrayList           val allNetworks  Array lt Network gt     added in API 21  Lollipop          if  Build VERSION SDK INT  gt   Build VERSION CODES LOLLIPOP                allNetworks   mConnectivityMgr   allNetworks             for  network in allNetworks                    val networkCapabilities   mConnectivityMgr   getNetworkCapabilities network                  if  networkCapabilities    null                        if  networkCapabilities hasTransport NetworkCapabilities TRANSPORT WIFI   activeNetworks add                          TRANSPORT WIFI                                           if  networkCapabilities hasTransport NetworkCapabilities TRANSPORT CELLULAR   activeNetworks add                          TRANSPORT CELLULAR                                                                         return activeNetworks             fun onInternetStateListener listener  ConnectionStateListener            if  Build VERSION SDK INT  lt  Build VERSION CODES LOLLIPOP                mNetworkStateReceiver   NetworkStateReceiver listener              val intentFilter   IntentFilter ConnectivityManager CONNECTIVITY ACTION              mContext registerReceiver mNetworkStateReceiver  intentFilter            else               mConnectionMonitor   setOnConnectionStateListener listener                         OnLifecycleEvent Lifecycle Event ON DESTROY      fun onDestroy             Log d TAG   quot onDestroy quot            mContext as AppCompatActivity     lifecycle removeObserver this          if  Build VERSION SDK INT  gt   Build VERSION CODES LOLLIPOP                if  mConnectionMonitor    null  mConnectivityMgr   unregisterNetworkCallback                  mConnectionMonitor                           else               if  mNetworkStateReceiver    null  mContext unregisterReceiver mNetworkStateReceiver                        inner class NetworkStateReceiver var mListener  ConnectionStateListener            BroadcastReceiver             override fun onReceive context  Context  intent  Intent                if  intent extras    null                    val activeNetworkInfo  NetworkInfo                        mConnectivityMgr  getActiveNetworkInfo      deprecated in API 29                                        activeNetworkInfo getState   deprecated in API 28                    NetworkInfo State CONNECTED deprecated in API 29                      if   mIsConnected  amp  amp  activeNetworkInfo    null  amp  amp  activeNetworkInfo state    NetworkInfo State CONNECTED                        mIsConnected   true                     mListener onAvailable true                    else if  intent getBooleanExtra                          ConnectivityManager EXTRA NO CONNECTIVITY                          java lang Boolean FALSE                                                               if   isOnline                              mListener onAvailable false                          mIsConnected   false                                                                             RequiresApi api   Build VERSION CODES LOLLIPOP      inner class ConnectionMonitor   NetworkCallback             private var mConnectionStateListener  ConnectionStateListener    null         fun setOnConnectionStateListener connectionStateListener  ConnectionStateListener                 mConnectionStateListener   connectionStateListener                    override fun onAvailable network  Network                if  mIsConnected  return             Log d TAG   quot onAvailable   quot               if  mConnectionStateListener    null                    mConnectionStateListener   onAvailable true                  mIsConnected   true                                  override fun onLost network  Network                if  getAvailableNetworksCount      0                    mConnectionStateListener  onAvailable false                  mIsConnected   false

User · Answer

This works for me in Kotlin  Lot of API s are deprecated in Network Manager class so below answer cover all API support   fun isNetworkAvailable context  Context   Boolean       var result   false      context getSystemService Context CONNECTIVITY SERVICE  as ConnectivityManager  apply               if  Build VERSION SDK INT  gt   Build VERSION CODES M                    result   isCapableNetwork this this activeNetwork                else                   val networkInfos   this allNetworks                 for  tempNetworkInfo in networkInfos                        if isCapableNetwork this tempNetworkInfo                           result    true                                                return result    fun isCapableNetwork cm  ConnectivityManager network  Network    Boolean       cm getNetworkCapabilities network   also           if  it hasTransport NetworkCapabilities TRANSPORT WIFI                 return true           else if  it hasTransport NetworkCapabilities TRANSPORT CELLULAR                 return true                     return false     You will also add below    lt uses-permission android name  android permission ACCESS NETWORK STATE    gt

User · Answer

As Cheese Bread suggested  use            getActiveNetworkInfo       getActiveNetworkInfo      Added in API level 1      NetworkInfo getActiveNetworkInfo         Returns details about the currently active default data network  When connected  this network is the default route for outgoing connections  You should always check isConnected   before initiating network traffic  This may return null when there is no default network    This method requires the caller to hold the permission ACCESS NETWORK STATE    Returns   NetworkInfo   a NetworkInfo object for the current default network or null if no default network is currently active       Reference   Android Studio     public final boolean isInternetOn             get Connectivity Manager object to check connection     ConnectivityManager connec                ConnectivityManager getSystemService getBaseContext   CONNECTIVITY SERVICE           Check for network connections     if   connec getActiveNetworkInfo   getState      android net NetworkInfo State CONNECTED                connec getActiveNetworkInfo   getState      android net NetworkInfo State CONNECTING                 if connected with internet          Toast makeText this  connec getActiveNetworkInfo   getTypeName    Toast LENGTH LONG  show            return true         else if               connec getActiveNetworkInfo   getState      android net NetworkInfo State DISCONNECTED                        connec getActiveNetworkInfo   getState      android net NetworkInfo State DISCONNECTED               Toast makeText this    Not Connected    Toast LENGTH LONG  show            return false            return false      now call the method   for safe use try catch  try       if  isInternetOn         connected actions          else      not connected actions        catch  Exception e     Toast makeText this  e getMessage    Toast LENGTH SHORT  show        And do not forget to add    lt uses-permission android name  android permission ACCESS NETWORK STATE    gt

User · Answer

check if Internet is available   RequiresPermission allOf         Manifest permission ACCESS NETWORK STATE       Manifest permission INTERNET    fun isInternetAvailable context  Context   Boolean       val connectivityManager   context getSystemService Context CONNECTIVITY SERVICE  as ConnectivityManager      val activeNetworkInfo   connectivityManager   activeNetworkInfo     return activeNetworkInfo    null  amp  amp  activeNetworkInfo isConnected

User · Answer

As for October 2018  accepted answer is deprecated   getType    and types themselves  are now deprecated in API Level 28  From Javadoc       Callers should switch to checking NetworkCapabilities hasTransport instead with one of the NetworkCapabilities TRANSPORT  constants   In order to use NetworkCapabilities  you need to pass a Network instance to the getNetworkCapabilities   method  To get that instance you need to call getActiveNetwork   which was added in API Level 23    So I believe for now the right way to safely check whether you are connected to Wi-Fi or cellular network is   public static boolean isNetworkConnected         final ConnectivityManager cm    ConnectivityManager context getSystemService Context CONNECTIVITY SERVICE        if  cm    null            if  Build VERSION SDK INT  lt  23                final NetworkInfo ni   cm getActiveNetworkInfo                 if  ni    null                    return  ni isConnected    amp  amp   ni getType      ConnectivityManager TYPE WIFI    ni getType      ConnectivityManager TYPE MOBILE                            else               final Network n   cm getActiveNetwork                 if  n    null                    final NetworkCapabilities nc   cm getNetworkCapabilities n                    return  nc hasTransport NetworkCapabilities TRANSPORT CELLULAR     nc hasTransport NetworkCapabilities TRANSPORT WIFI                                        return false       You can also check for other types of TRANSPORT  which you can find here    Important note  if you are connected to Wi-Fi and to a VPN  then your current state could be TRANSPORT VPN  so you might want to also check for it     Don t forget to add the following permission to your AndroidManifest file    lt uses-permission android name  android permission ACCESS NETWORK STATE    gt

User · Answer

Kotlin version   fun isInternetOn context  Context   Boolean      val cm   context getSystemService Context CONNECTIVITY SERVICE  as  ConnectivityManager    val activeNetwork   cm  activeNetworkInfo    return activeNetwork    null  amp  amp  activeNetwork isConnected

User · Answer

This will work in Android 10 as well  It will return true if connected to the internet else return false  private fun isOnline    Boolean           val connectivityManager                   getSystemService Context CONNECTIVITY SERVICE  as ConnectivityManager         val capabilities                   connectivityManager getNetworkCapabilities connectivityManager activeNetwork          if  capabilities    null                when                   capabilities hasTransport NetworkCapabilities TRANSPORT CELLULAR  - gt                        Log i  quot Internet quot    quot NetworkCapabilities TRANSPORT CELLULAR quot                       return true                                   capabilities hasTransport NetworkCapabilities TRANSPORT WIFI  - gt                        Log i  quot Internet quot    quot NetworkCapabilities TRANSPORT WIFI quot                       return true                                   capabilities hasTransport NetworkCapabilities TRANSPORT ETHERNET  - gt                        Log i  quot Internet quot    quot NetworkCapabilities TRANSPORT ETHERNET quot                       return true                                                   return false

User · Answer

NetManager that you can use to check internet connection on Android with Kotlin  If you use minSdkVersion    23  class NetManager  Inject constructor var applicationContext  Context        val isConnectedToInternet  Boolean          get     with              applicationContext getSystemService Context CONNECTIVITY SERVICE                      as ConnectivityManager                         isConnectedToInternet                fun ConnectivityManager isConnectedToInternet     isConnected getNetworkCapabilities activeNetwork    fun isConnected networkCapabilities  NetworkCapabilities    Boolean       return when  networkCapabilities            null - gt  false         else - gt  with networkCapabilities    hasTransport TRANSPORT CELLULAR     hasTransport TRANSPORT WIFI              If you use minSdkVersion  lt  23  class NetManager  Inject constructor var applicationContext  Context        val isConnectedToInternet  Boolean          get     with              applicationContext getSystemService Context CONNECTIVITY SERVICE                      as ConnectivityManager                         isConnectedToInternet                fun ConnectivityManager isConnectedToInternet    Boolean   if  Build VERSION SDK INT  lt  23        isConnected activeNetworkInfo    else       isConnected getNetworkCapabilities activeNetwork       fun isConnected network  NetworkInfo    Boolean       return when  network            null - gt  false         else - gt  with network    isConnected  amp  amp   type    TYPE WIFI    type    TYPE MOBILE             fun isConnected networkCapabilities  NetworkCapabilities    Boolean       return when  networkCapabilities            null - gt  false         else - gt  with networkCapabilities    hasTransport TRANSPORT CELLULAR     hasTransport TRANSPORT WIFI

User · Answer

The accepted answer is deprecated in version 28 so here is the solution that I am using in my project      Returns connection type  false  no Internet Connection  true  mobile   data    wifi   public static boolean isNetworkConnected Context context         boolean result   false       ConnectivityManager cm    ConnectivityManager  context getSystemService Context CONNECTIVITY SERVICE       if  Build VERSION SDK INT  gt   Build VERSION CODES M            if  cm    null                NetworkCapabilities capabilities   cm getNetworkCapabilities cm getActiveNetwork                 if  capabilities    null                    if  capabilities hasTransport NetworkCapabilities TRANSPORT WIFI                         result   true                    else if  capabilities hasTransport NetworkCapabilities TRANSPORT CELLULAR                         result   true                                                  else           if  cm    null                NetworkInfo activeNetwork   cm getActiveNetworkInfo                if  activeNetwork    null                       connected to the internet                 if  activeNetwork getType      ConnectivityManager TYPE WIFI                        result   true                    else if  activeNetwork getType      ConnectivityManager TYPE MOBILE                        result   true                                                      return result

User · Answer

February 2020 Update   The accepted answer is deprecated again in 28  Android P   but its replacement method only works on 23  Android M   To support older devices  I wrote a helper function in    How to use   int type   getConnectionType getApplicationContext       It returns an int  you can change it to enum in your code      0  No Internet available  maybe on airplane mode  or in the process of joining an wi-fi        1  Cellular  mobile data  3G 4G LTE whatever        2  Wi-fi       3  VPN   You can copy either the Kotlin or the Java version of the helper function   Kotlin    IntRange from   0  to   3  fun getConnectionType context  Context   Int       var result   0    Returns connection type  0  none  1  mobile data  2  wifi     val cm   context getSystemService Context CONNECTIVITY SERVICE  as ConnectivityManager      if  Build VERSION SDK INT  gt   Build VERSION CODES M            cm  run               cm getNetworkCapabilities cm activeNetwork   run                   if  hasTransport NetworkCapabilities TRANSPORT WIFI                         result   2                   else if  hasTransport NetworkCapabilities TRANSPORT CELLULAR                         result   1                   else if  hasTransport NetworkCapabilities TRANSPORT VPN                        result   3                                                 else           cm  run               cm activeNetworkInfo  run                   if  type    ConnectivityManager TYPE WIFI                        result   2                   else if  type    ConnectivityManager TYPE MOBILE                        result   1                   else if type    ConnectivityManager TYPE VPN                        result   3                                                     return result     Java    IntRange from   0  to   3  public static int getConnectionType Context context        int result   0     Returns connection type  0  none  1  mobile data  2  wifi     ConnectivityManager cm    ConnectivityManager  context getSystemService Context CONNECTIVITY SERVICE       if  Build VERSION SDK INT  gt   Build VERSION CODES M            if  cm    null                NetworkCapabilities capabilities   cm getNetworkCapabilities cm getActiveNetwork                 if  capabilities    null                    if  capabilities hasTransport NetworkCapabilities TRANSPORT WIFI                         result   2                    else if  capabilities hasTransport NetworkCapabilities TRANSPORT CELLULAR                         result   1                    else if  capabilities hasTransport NetworkCapabilities TRANSPORT VPN                         result   3                                                  else           if  cm    null                NetworkInfo activeNetwork   cm getActiveNetworkInfo                if  activeNetwork    null                       connected to the internet                 if  activeNetwork getType      ConnectivityManager TYPE WIFI                        result   2                    else if  activeNetwork getType      ConnectivityManager TYPE MOBILE                        result   1                    else if  activeNetwork getType      ConnectivityManager TYPE VPN                        result   3                                                      return result

User · Answer

You can use      getActiveNetworkInfo      ConnectivityManager cm    ConnectivityManager  context getSystemService Context CONNECTIVITY SERVICE   NetworkInfo activeNetwork   cm getActiveNetworkInfo    if  activeNetwork    null            connected to the internet     if  activeNetwork getType      ConnectivityManager TYPE WIFI               connected to wifi       else if  activeNetwork getType      ConnectivityManager TYPE MOBILE               connected to mobile data         else          not connected to the internet     Or in a switch case  ConnectivityManager cm    ConnectivityManager  context getSystemService Context CONNECTIVITY SERVICE   NetworkInfo activeNetwork   cm getActiveNetworkInfo    if  activeNetwork    null            connected to the internet     switch  activeNetwork getType              case ConnectivityManager TYPE WIFI                 connected to wifi             break          case ConnectivityManager TYPE MOBILE                 connected to mobile data             break          default              break          else          not connected to the internet

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Many answers still use getNetworkType below 23 which is deprecated  use below code to check if the device has an internet connection   public static boolean isNetworkConnected Context context         ConnectivityManager cm    ConnectivityManager  context getSystemService Context CONNECTIVITY SERVICE        if  cm    null            if  Build VERSION SDK INT  gt   Build VERSION CODES M                NetworkCapabilities capabilities   cm getNetworkCapabilities cm getActiveNetwork                 return capabilities    null  amp  amp   capabilities hasTransport NetworkCapabilities TRANSPORT WIFI     capabilities hasTransport NetworkCapabilities TRANSPORT CELLULAR              else               NetworkInfo activeNetwork   cm getActiveNetworkInfo                return activeNetwork    null  amp  amp  activeNetwork isConnected                         return false          And  do not forget to add this line in Manifest   lt uses-permission android name  android permission ACCESS NETWORK STATE    gt

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The below code works on all APIs  Kotlin   However  getActiveNetworkInfo   is deprecated only in API 29 and works on all APIs   so we can use it in all Api s below 29  fun isInternetAvailable context  Context   Boolean               var result   false             val connectivityManager                   context getSystemService Context CONNECTIVITY SERVICE  as ConnectivityManager             if  Build VERSION SDK INT  gt   Build VERSION CODES M                    val networkCapabilities   connectivityManager activeNetwork    return false                 val actNw                       connectivityManager getNetworkCapabilities networkCapabilities     return false                 result   when                       actNw hasTransport NetworkCapabilities TRANSPORT WIFI  - gt  true                     actNw hasTransport NetworkCapabilities TRANSPORT CELLULAR  - gt  true                     actNw hasTransport NetworkCapabilities TRANSPORT ETHERNET  - gt  true                     else - gt  false                                 else                   connectivityManager run                       connectivityManager activeNetworkInfo  run                           result   when  type                                ConnectivityManager TYPE WIFI - gt  true                             ConnectivityManager TYPE MOBILE - gt  true                             ConnectivityManager TYPE ETHERNET - gt  true                             else - gt  false                                                                                               return result

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In order to be on the safe side  i would suggest to use also method      NetworkInfo isConnected     The whole method could be as below          Checking whether network is connected     param context Context to get   link ConnectivityManager      return true if Network is connected  else false     public static boolean isConnected Context context       ConnectivityManager cm    ConnectivityManager  context getSystemService Context CONNECTIVITY SERVICE       NetworkInfo activeNetwork   cm getActiveNetworkInfo        if  activeNetwork    null  amp  amp  activeNetwork isConnected              int networkType   activeNetwork getType            return networkType    ConnectivityManager TYPE WIFI    networkType    ConnectivityManager TYPE MOBILE        else           return false

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Since answers posted only allow you to query the active network  here s how to get NetworkInfo for any network  not only the active one  for example Wifi network   sorry  Kotlin code ahead    getSystemService Context CONNECTIVITY SERVICE  as ConnectivityManager  run       allNetworks find   getNetworkInfo it  type    ConnectivityManager TYPE WIFI    let   network - gt  getNetworkInfo network          getNetworkInfo ConnectivityManager TYPE WIFI  isAvailable    This is the deprecated API pre-21     This requires API 21 or higher and the permission android permission ACCESS NETWORK STATE

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This can help someone Kotlin fun isNetworkConnected context  Context    Boolean           val connectivityManager   context getSystemService Context CONNECTIVITY SERVICE  as ConnectivityManager         val capabilities    connectivityManager getNetworkCapabilities connectivityManager activeNetwork          capabilities also               if  it    null                   if  it hasTransport NetworkCapabilities TRANSPORT WIFI                       return true                 else if  it hasTransport NetworkCapabilities TRANSPORT CELLULAR                        return true                                                   return false

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public boolean isConnectedToWifi Context context        ConnectivityManager connectivityManager    ConnectivityManager  context getSystemService Context CONNECTIVITY SERVICE       if  connectivityManager    null            return false             if  android os Build VERSION SDK INT  gt   android os Build VERSION CODES M            Network network   connectivityManager getActiveNetwork            NetworkCapabilities capabilities   connectivityManager getNetworkCapabilities network           if  capabilities    null                return false                    return capabilities hasTransport NetworkCapabilities TRANSPORT WIFI         else           NetworkInfo networkInfo   connectivityManager getNetworkInfo ConnectivityManager TYPE WIFI           if  networkInfo    null                return false                    return networkInfo isConnected

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Updated answer  19 07 2018    This method will help you check if the internet connection is available   public static boolean isNetworkAvailable Context context        ConnectivityManager connectivityManager    ConnectivityManager  context getSystemService Context CONNECTIVITY SERVICE        if  connectivityManager    null            NetworkInfo activeNetwork   connectivityManager getActiveNetworkInfo            return  activeNetwork    null  amp  amp  activeNetwork isConnectedOrConnecting           else           return false            Old answer   For best code reuse practice  improvising Cheese Bread answer   public static boolean isNetworkAvailable Context context        int   networkTypes    ConnectivityManager TYPE MOBILE              ConnectivityManager TYPE WIFI       try           ConnectivityManager connectivityManager                    ConnectivityManager  context getSystemService Context CONNECTIVITY SERVICE           for  int networkType   networkTypes                NetworkInfo activeNetworkInfo   connectivityManager getActiveNetworkInfo                if  activeNetworkInfo    null  amp  amp                      activeNetworkInfo getType      networkType                  return true                  catch  Exception e            return false            return false      The code can be placed in Util class and can be used to check whether the phone is connected to Internet via Wifi or Mobile Internet from any part of your application

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https   www agnosticdev com content how-detect-network-connectivity-android  please follow this tutorial it should help anyone looking for answers   note networkInfo has been deprecated hence replace it is isNetworkReacheable   with  vidha answer below passing getApplicationContext   as parameter    public static boolean isNetworkReacheable Context context        boolean result   false      ConnectivityManager cm    ConnectivityManager  context getSystemService Context CONNECTIVITY SERVICE       if  Build VERSION SDK INT  gt   Build VERSION CODES M            if  cm    null                NetworkCapabilities capabilities   cm getNetworkCapabilities cm getActiveNetwork                 if  capabilities    null                    if  capabilities hasTransport NetworkCapabilities TRANSPORT WIFI                         result   true                    else if  capabilities hasTransport NetworkCapabilities TRANSPORT CELLULAR                         result   true                                                  else           if  cm    null                NetworkInfo activeNetwork   cm getActiveNetworkInfo                if  activeNetwork    null                       connected to the internet                 if  activeNetwork getType      ConnectivityManager TYPE WIFI                        result   true                    else if  activeNetwork getType      ConnectivityManager TYPE MOBILE                        result   true                                                      return result

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It is good to check whether your network is connected to Internet    Suppress  DEPRECATION   fun isNetworkAvailable context  Context   Boolean       try           val cm   context getSystemService Context CONNECTIVITY SERVICE  as ConnectivityManager         return if  Build VERSION SDK INT  gt  22                val an   cm activeNetwork    return false             val capabilities   cm getNetworkCapabilities an     return false             capabilities hasCapability NetworkCapabilities NET CAPABILITY INTERNET            else               val a   cm activeNetworkInfo    return false             a isConnected  amp  amp   a type    ConnectivityManager TYPE WIFI    a type    ConnectivityManager TYPE MOBILE                  catch  e  Exception            e printStackTrace             return false

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Almost  All answers are deprecated in Android P  so here is C  solution  which is easy to follow for Java developers   public bool IsOnline Context context        var cm    ConnectivityManager context GetSystemService Context ConnectivityService        if  cm    null  return false       if  Build VERSION SdkInt  lt  BuildVersionCodes M                var ni   cm ActiveNetworkInfo           if  ni    null  return false           return ni IsConnected  amp  amp   ni Type    ConnectivityType Wifi    ni Type    ConnectivityType Mobile              return cm GetNetworkCapabilities cm ActiveNetwork  HasTransport Android Net TransportType Wifi             cm GetNetworkCapabilities cm ActiveNetwork  HasTransport Android Net TransportType Cellular          The key here is Android Net TransportType

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We may need to check internet connectivity more than once  So it will be easier for us if we write the code block in an extension method of Context  Below are my helper extensions for Context and Fragment   Checking Internet Connection  fun Context hasInternet    Boolean       val connectivityManager   getSystemService Context CONNECTIVITY SERVICE  as ConnectivityManager     return if  Build VERSION SDK INT  lt  23            val activeNetworkInfo   connectivityManager activeNetworkInfo         activeNetworkInfo    null  amp  amp  activeNetworkInfo isConnected       else           val nc   connectivityManager getNetworkCapabilities connectivityManager activeNetwork          if  nc    null                false           else               nc hasTransport NetworkCapabilities TRANSPORT CELLULAR                         nc hasTransport NetworkCapabilities TRANSPORT WIFI                      Other Extensions  fun Context hasInternet notifyNoInternet  Boolean   true  trueFunc   internet  Boolean  - gt  Unit        if  hasInternet              trueFunc true        else if  notifyNoInternet            Toast makeText this   No Internet Connection    Toast LENGTH SHORT  show            fun Context hasInternet      trueFunc   internet  Boolean  - gt  Unit      falseFunc   internet  Boolean  - gt  Unit         if  hasInternet              trueFunc true        else           falseFunc true           fun Fragment hasInternet    Boolean   context   hasInternet    fun Fragment hasInternet notifyNoInternet  Boolean   true  trueFunc   internet  Boolean  - gt  Unit        context   hasInternet notifyNoInternet  trueFunc   fun Fragment hasInternet      trueFunc   internet  Boolean  - gt  Unit  falseFunc   internet  Boolean  - gt  Unit     context   hasInternet trueFunc  falseFunc

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Something like this   public boolean hasConnection final Context context       ConnectivityManager cm    ConnectivityManager context getSystemService Context CONNECTIVITY SERVICE       NetworkInfo activeNW   cm getActiveNetworkInfo        if  activeNW    null  amp  amp  activeNW isConnected                  return true            return false      And in the main program body   if hasConnection this         Toast makeText this   Active networks OK    Toast LENGTH LONG  show        getAccountData token  tel     else  Toast makeText this   No active networks       Toast LENGTH LONG  show

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Here s how I check if the current network is using cellular or not on the latest Android versions   val isCellular  Boolean get         val cm   getSystemService Context CONNECTIVITY SERVICE  as ConnectivityManager     return if  Build VERSION SDK INT  gt   Build VERSION CODES M            cm getNetworkCapabilities cm activeNetwork  hasTransport NetworkCapabilities TRANSPORT CELLULAR        else           cm activeNetworkInfo  type    ConnectivityManager TYPE MOBILE

[android] ConnectivityManager getNetworkInfo(int) deprecated

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