常用判断网络状态及类型的工具集合
NetworkUtils
import android.Manifest;
import android.annotation.TargetApi;
import android.content.Context;
import android.net.ConnectivityManager;
import android.net.Network;
import android.net.NetworkInfo;
import android.os.Build;
import android.support.annotation.RequiresPermission;
public class NetworkUtils {
private static final String TAG = "NetworkUtils";
private NetworkUtils() {
throw new UnsupportedOperationException(this.getClass().getSimpleName() + " cannot be instantiated");
}
@RequiresPermission(android.Manifest.permission.ACCESS_NETWORK_STATE)
public static boolean isNetworkAvailable(Context context) {
ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo activeNetworkInfo = null;
if (connectivityManager != null) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
Network network = connectivityManager.getActiveNetwork();
activeNetworkInfo = connectivityManager.getNetworkInfo(network);
} else {
activeNetworkInfo = connectivityManager.getActiveNetworkInfo();
}
}
return activeNetworkInfo != null && activeNetworkInfo.isAvailable();
}
@RequiresPermission(android.Manifest.permission.ACCESS_NETWORK_STATE)
public static boolean isNetworkConnected(Context context) {
ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo activeNetworkInfo = null;
if (connectivityManager != null) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
Network network = connectivityManager.getActiveNetwork();
activeNetworkInfo = connectivityManager.getNetworkInfo(network);
} else {
activeNetworkInfo = connectivityManager.getActiveNetworkInfo();
}
}
return activeNetworkInfo != null && activeNetworkInfo.isConnected();
}
@RequiresPermission(android.Manifest.permission.ACCESS_NETWORK_STATE)
private static boolean isNetworkAvailable(Context context, int type) {
ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
if (connectivityManager == null) {
return false;
}
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
for (Network network : connectivityManager.getAllNetworks()) {
NetworkInfo networkInfo = connectivityManager.getNetworkInfo(network);
if (networkInfo != null && networkInfo.getType() == type && networkInfo.isAvailable()) {
return true;
}
}
} else {
for (NetworkInfo networkInfo : connectivityManager.getAllNetworkInfo()) {
if (networkInfo != null && networkInfo.getType() == type && networkInfo.isAvailable()) {
return true;
}
}
}
return false;
}
@RequiresPermission(android.Manifest.permission.ACCESS_NETWORK_STATE)
private static boolean isNetworkConnected(Context context, int type) {
ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
if (connectivityManager == null) {
return false;
}
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
for (Network network : connectivityManager.getAllNetworks()) {
NetworkInfo networkInfo = connectivityManager.getNetworkInfo(network);
if (networkInfo != null && networkInfo.getType() == type && networkInfo.isConnected()) {
return true;
}
}
} else {
for (NetworkInfo networkInfo : connectivityManager.getAllNetworkInfo()) {
if (networkInfo != null && networkInfo.getType() == type && networkInfo.isConnected()) {
return true;
}
}
}
return false;
}
@RequiresPermission(android.Manifest.permission.ACCESS_NETWORK_STATE)
public static boolean isWifiAvailable(Context context) {
return isNetworkAvailable(context, ConnectivityManager.TYPE_WIFI);
}
@RequiresPermission(android.Manifest.permission.ACCESS_NETWORK_STATE)
public static boolean isWifiConnected(Context context) {
return isNetworkConnected(context, ConnectivityManager.TYPE_WIFI);
}
@RequiresPermission(android.Manifest.permission.ACCESS_NETWORK_STATE)
public static boolean isMobileAvailable(Context context) {
return isNetworkAvailable(context, ConnectivityManager.TYPE_MOBILE);
}
@RequiresPermission(android.Manifest.permission.ACCESS_NETWORK_STATE)
public static boolean isMobileConnected(Context context) {
return isNetworkConnected(context, ConnectivityManager.TYPE_MOBILE);
}
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
@RequiresPermission(android.Manifest.permission.ACCESS_NETWORK_STATE)
public static boolean isVpnAvailable(Context context) {
return isNetworkAvailable(context, ConnectivityManager.TYPE_VPN);
}
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
@RequiresPermission(android.Manifest.permission.ACCESS_NETWORK_STATE)
public static boolean isVpnConnected(Context context) {
return isNetworkConnected(context, ConnectivityManager.TYPE_VPN);
}
@RequiresPermission(android.Manifest.permission.ACCESS_NETWORK_STATE)
public static boolean isBluetoothAvailable(Context context) {
return isNetworkAvailable(context, ConnectivityManager.TYPE_BLUETOOTH);
}
@RequiresPermission(android.Manifest.permission.ACCESS_NETWORK_STATE)
public static boolean isBluetoothConnected(Context context) {
return isNetworkConnected(context, ConnectivityManager.TYPE_BLUETOOTH);
}
@RequiresPermission(Manifest.permission.ACCESS_NETWORK_STATE)
public static int getNetworkType(Context context) {
ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
if (connectivityManager == null) {
return -1;
}
NetworkInfo activeNetworkInfo;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
Network network = connectivityManager.getActiveNetwork();
activeNetworkInfo = connectivityManager.getNetworkInfo(network);
} else {
activeNetworkInfo = connectivityManager.getActiveNetworkInfo();
}
if (activeNetworkInfo != null) {
return activeNetworkInfo.getType();
}
return -1;
}
@RequiresPermission(android.Manifest.permission.ACCESS_NETWORK_STATE)
public static String getNetworkTypeName(Context context) {
ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
if (connectivityManager == null) {
return "UNKNOWN";
}
NetworkInfo activeNetworkInfo;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
Network network = connectivityManager.getActiveNetwork();
activeNetworkInfo = connectivityManager.getNetworkInfo(network);
} else {
activeNetworkInfo = connectivityManager.getActiveNetworkInfo();
}
if (activeNetworkInfo != null) {
return activeNetworkInfo.getTypeName();
}
return "UNKNOWN";
}
@RequiresPermission(android.Manifest.permission.ACCESS_NETWORK_STATE)
public static int getNetworkSubtype(Context context) {
ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
if (connectivityManager == null) {
return -1;
}
NetworkInfo activeNetworkInfo;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
Network network = connectivityManager.getActiveNetwork();
activeNetworkInfo = connectivityManager.getNetworkInfo(network);
} else {
activeNetworkInfo = connectivityManager.getActiveNetworkInfo();
}
if (activeNetworkInfo != null) {
return activeNetworkInfo.getSubtype();
}
return -1;
}
@RequiresPermission(android.Manifest.permission.ACCESS_NETWORK_STATE)
public static String getNetworkSubtypeName(Context context) {
ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
if (connectivityManager == null) {
return "UNKNOWN";
}
NetworkInfo activeNetworkInfo;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
Network network = connectivityManager.getActiveNetwork();
activeNetworkInfo = connectivityManager.getNetworkInfo(network);
} else {
activeNetworkInfo = connectivityManager.getActiveNetworkInfo();
}
if (activeNetworkInfo != null) {
return activeNetworkInfo.getSubtypeName();
}
return "UNKNOWN";
}
@RequiresPermission(android.Manifest.permission.ACCESS_NETWORK_STATE)
public static NetworkInfo.State getNetworkState(Context context) {
ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
if (connectivityManager == null) {
return NetworkInfo.State.UNKNOWN;
}
NetworkInfo activeNetworkInfo;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
Network network = connectivityManager.getActiveNetwork();
activeNetworkInfo = connectivityManager.getNetworkInfo(network);
} else {
activeNetworkInfo = connectivityManager.getActiveNetworkInfo();
}
if (activeNetworkInfo != null) {
return activeNetworkInfo.getState();
}
return NetworkInfo.State.UNKNOWN;
}
@RequiresPermission(android.Manifest.permission.ACCESS_NETWORK_STATE)
public static String getNetworkExtraInfo(Context context) {
ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
if (connectivityManager == null) {
return "UNKNOWN";
}
NetworkInfo activeNetworkInfo;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
Network network = connectivityManager.getActiveNetwork();
activeNetworkInfo = connectivityManager.getNetworkInfo(network);
} else {
activeNetworkInfo = connectivityManager.getActiveNetworkInfo();
}
if (activeNetworkInfo != null) {
return activeNetworkInfo.getExtraInfo();
}
return "UNKNOWN";
}
@RequiresPermission(android.Manifest.permission.ACCESS_NETWORK_STATE)
public static NetworkInfo getNetworkInfo(Context context) {
ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
if (connectivityManager == null) {
return null;
}
NetworkInfo activeNetworkInfo = null;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
Network network = connectivityManager.getActiveNetwork();
activeNetworkInfo = connectivityManager.getNetworkInfo(network);
} else {
activeNetworkInfo = connectivityManager.getActiveNetworkInfo();
}
return activeNetworkInfo;
}
}
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