a

554325746@qq.com

2020-01-02 e52632329ef8342a2f692bf58184fc54db3d2b4c

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package com.basic.security.utils;
 
import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
 
import com.basic.security.base.BaseApplication;
 
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.util.Collections;
import java.util.List;
 
 
public class NetUtil {
 
    /**
     * 判断是否有网络连接
     *
     * @return
     */
    public static boolean isNetworkConnected() {
 
        ConnectivityManager mConnectivityManager = (ConnectivityManager) BaseApplication.getApplication().getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo mNetworkInfo = null;
        if (mConnectivityManager != null) {
            mNetworkInfo = mConnectivityManager.getActiveNetworkInfo();
        }
        if (mNetworkInfo != null) {
            return mNetworkInfo.isAvailable();
        }
        return false;
    }
 
    /**
     * 判断WIFI网络是否可用
     *
     * @param context
     * @return
     */
    public static boolean isWifiConnected(Context context) {
        if (context != null) {
            ConnectivityManager mConnectivityManager = (ConnectivityManager) BaseApplication.getApplication().getSystemService(Context.CONNECTIVITY_SERVICE);
            NetworkInfo mWiFiNetworkInfo = null;
            if (mConnectivityManager != null) {
                mWiFiNetworkInfo = mConnectivityManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
            }
            if (mWiFiNetworkInfo != null) {
                return mWiFiNetworkInfo.isAvailable();
            }
        }
        return false;
    }
 
 
    public static boolean isWiFiActive() {
        ConnectivityManager connectivity = (ConnectivityManager) BaseApplication.getApplication().getSystemService(Context.CONNECTIVITY_SERVICE);
        if (connectivity != null) {
            NetworkInfo[] info = connectivity.getAllNetworkInfo();
            if (info != null) {
                for (NetworkInfo anInfo : info) {
                    if (anInfo.getTypeName().equals("WIFI") && anInfo.isConnected()) {
                        return true;
                    }
                }
            }
        }
        return false;
    }
 
    /**
     * 获取当前网络连接的类型信息
     *
     * @return
     */
    public static int getConnectedType() {
        if (BaseApplication.getApplication() != null) {
            ConnectivityManager mConnectivityManager = (ConnectivityManager) BaseApplication.getApplication().getSystemService(Context.CONNECTIVITY_SERVICE);
 
            NetworkInfo mNetworkInfo = null;
            if (mConnectivityManager != null) {
                mNetworkInfo = mConnectivityManager.getActiveNetworkInfo();
            }
 
            if (mNetworkInfo != null && mNetworkInfo.isAvailable()) {
                return mNetworkInfo.getType();
            }
        }
        return -1;
    }
 
    public static String getIPAddress(boolean useIPv4) {
        try {
            List<NetworkInterface> interfaces = Collections.list(NetworkInterface.getNetworkInterfaces());
            for (NetworkInterface intf : interfaces) {
                List<InetAddress> addrs = Collections.list(intf.getInetAddresses());
                for (InetAddress addr : addrs) {
                    if (!addr.isLoopbackAddress()) {
                        String sAddr = addr.getHostAddress();
                        //boolean isIPv4 = InetAddressUtils.isIPv4Address(sAddr);
                        boolean isIPv4 = sAddr.indexOf(':') < 0;
 
                        if (useIPv4) {
                            if (isIPv4)
                                return sAddr;
                        } else {
                            if (!isIPv4) {
                                int delim = sAddr.indexOf('%'); // drop ip6 zone suffix
                                return delim < 0 ? sAddr.toUpperCase() : sAddr.substring(0, delim).toUpperCase();
                            }
                        }
                    }
                }
            }
        } catch (Exception ignored) {
        } // for now eat exceptions
        return "";
    }
}