Android tools (2) NetWorkHelper Network Tools and androidjson tools

Android tools (2) NetWorkHelper Network Tools and androidjson tools

Import android. content. context; import android.net. connectivityManager; import android.net. networkInfo; import android.net. uri; import android.net. networkInfo. state; import android. telephony. telephonyManager; import android. util. log; public class NetWorkHelper {public static final int NETWORN_NONE = 0; public static final int NETWORN_WIFI = 1; public static final int NETWORN_MOBILE = 2; private static Str Ing LOG_TAG = "NetWorkHelper"; public static Uri uri = Uri. parse ("content: // telephony/carriers");/*** determine whether a network exists */public static boolean isNetworkAvailable (Context context) {ConnectivityManager connectivity = (ConnectivityManager) context. getSystemService (Context. CONNECTIVITY_SERVICE); if (connectivity = null) {Log. w (LOG_TAG, "couldn't get connectivity manager");} else {NetworkInfo [] info = connectiv Ity. getAllNetworkInfo (); if (info! = Null) {for (int I = 0; I <info. length; I ++) {if (info [I]. isAvailable () {Log. d (LOG_TAG, "network is available"); return true ;}}} Log. d (LOG_TAG, "network is not available"); return false;}/*** check the network status * @ param context * @ return */public static boolean checkNetState (Context context) {boolean netstate = false; ConnectivityManager connectivity = (ConnectivityManager) context. getSystemService (Context. CON NECTIVITY_SERVICE); if (connectivity! = Null) {NetworkInfo [] info = connectivity. getAllNetworkInfo (); if (info! = Null) {for (int I = 0; I <info. length; I ++) {if (info [I]. getState () = NetworkInfo. state. CONNECTED) {netstate = true; break ;}}} return netstate;}/*** determines whether the network is roaming */public static boolean isNetworkRoaming (Context context) {ConnectivityManager connectivity = (ConnectivityManager) context. getSystemService (Context. CONNECTIVITY_SERVICE); if (connectivity = null) {Log. w (LOG_TAG, "couldn't get connectivit Y manager ");} else {NetworkInfo info = connectivity. getActiveNetworkInfo (); if (info! = Null & info. getType () = ConnectivityManager. TYPE_MOBILE) {TelephonyManager tm = (TelephonyManager) context. getSystemService (Context. TELEPHONY_SERVICE); if (tm! = Null & tm. isNetworkRoaming () {Log. d (LOG_TAG, "network is roaming"); return true;} else {Log. d (LOG_TAG, "network is not roaming") ;}} else {Log. d (LOG_TAG, "not using mobile network") ;}} return false ;} /*** determine whether the MOBILE network is available ** @ param context * @ return * @ throws Exception */public static boolean isMobileDataEnable (Context context) {ConnectivityManager connectivityManager = (ConnectivityManager) context. getSystemService (Context. CONNECTIVITY_SERVICE); boolean isMobileDataEnable = false; isMobileDataEnable = connectivityManager. getNetworkInfo (ConnectivityManager. TYPE_MOBILE ). isConnectedOrConnecting (); return isMobileDataEnable;}/*** determines whether wifi is available * @ param context * @ return * @ throws Exception */public static boolean isWifiDataEnable (Context context) {ConnectivityManager connectivityManager = (ConnectivityManager) context. getSystemService (Context. CONNECTIVITY_SERVICE); boolean isWifiDataEnable = false; isWifiDataEnable = connectivityManager. getNetworkInfo (ConnectivityManager. TYPE_WIFI ). isConnectedOrConnecting (); return isWifiDataEnable;} public static int getNetworkState (Context context) {ConnectivityManager connManager = (ConnectivityManager) context. getSystemService (Context. CONNECTIVITY_SERVICE); // Wifi State state = connManager. getNetworkInfo (ConnectivityManager. TYPE_WIFI ). getState (); if (state = State. CONNECTED | state = State. CONNECTING) {return NETWORN_WIFI;} // 3G state = connManager. getNetworkInfo (ConnectivityManager. TYPE_MOBILE ). getState (); if (state = State. CONNECTED | state = State. CONNECTING) {return NETWORN_MOBILE;} return NETWORN_NONE ;}}

How can I obtain the Context of an Activity in the tool class of android? Because I want to bring up the Dialog in the tool class, but getApplication

Add a Context parameter to the constructor of the tool class and set a global variable Context so that the Context object can be passed when the tool class is instantiated in an Activity class, hope to help you!

How to use custom tool classes in other projects during android Development

Add project 1 as a dependent project in Project 2!