安卓学习-其他-网络状态工具

package org.excsoft.g;

import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.URL;
import java.util.Enumeration;

import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.telephony.TelephonyManager;

public class NetStatus {

    public static int NET_CNNT_BAIDU_OK = 1; // 正常访问因特网状态
    public static int NET_CNNT_BAIDU_TIMEOUT = 2; // 无法访问因特网状态
    public static int NET_NOT_PREPARE = 3; // 网络未准备好
    public static int NET_ERROR = 4;
    private static int TIMEOUT = 3000;

    /**
     * 返回当前网络状态
     * 
     * @param context
     * @return
     */
    public static int getNetState(Context context,String url) {
        try {
            ConnectivityManager connectivity = (ConnectivityManager) context
                    .getSystemService(Context.CONNECTIVITY_SERVICE);
            if (connectivity != null) {
                NetworkInfo networkinfo = connectivity.getActiveNetworkInfo();
                if (networkinfo != null) {
                    if (networkinfo.isAvailable() && networkinfo.isConnected()) {
                        if (!connectionNetwork(url))
                            return NET_CNNT_BAIDU_TIMEOUT;
                        else
                            return NET_CNNT_BAIDU_OK;
                    } else {
                        return NET_NOT_PREPARE;
                    }
                }
            }
        } catch (Exception e) {
        }
        return NET_ERROR;
    }
    
    public static int getNetState1(Context context) {
        try {
            ConnectivityManager connectivity = (ConnectivityManager) context
                    .getSystemService(Context.CONNECTIVITY_SERVICE);
            if (connectivity != null) {
                NetworkInfo networkinfo = connectivity.getActiveNetworkInfo();
                if (networkinfo != null) {
                    if (networkinfo.isAvailable() && networkinfo.isConnected()) {
                        return NET_CNNT_BAIDU_OK;
                    } else {
                        return NET_NOT_PREPARE;
                    }
                }
            }
        } catch (Exception e) {
        }
        return NET_ERROR;
    }

    /**
     * 拼百度地址
     * 
     * @return
     */
    static private boolean connectionNetwork(String url) {
        boolean result = false;
        HttpURLConnection httpUrl = null;
        try {
            httpUrl = (HttpURLConnection) new URL(url)
                    .openConnection();
            httpUrl.setConnectTimeout(TIMEOUT);
            httpUrl.connect();
            result = true;
        } catch (IOException e) {
        } finally {
            if (null != httpUrl) {
                httpUrl.disconnect();
            }
            httpUrl = null;
        }
        return result;
    }

    /**
     * 判断当前网络是否是3G网络
     * 
     * @param context
     * @return boolean
     */
    public static boolean is3G(Context context) {
        ConnectivityManager connectivityManager = (ConnectivityManager) context
                .getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo activeNetInfo = connectivityManager.getActiveNetworkInfo();
        if (activeNetInfo != null
                && activeNetInfo.getType() == ConnectivityManager.TYPE_MOBILE) {
            return true;
        }
        return false;
    }

    /**
     * 判断当前网络是否是wifi网络
     * 
     * @param context
     * @return boolean
     */
    public static boolean isWifi(Context context) {
        ConnectivityManager connectivityManager = (ConnectivityManager) context
                .getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo activeNetInfo = connectivityManager.getActiveNetworkInfo();
        if (activeNetInfo != null
                && activeNetInfo.getType() == ConnectivityManager.TYPE_WIFI) {
            return true;
        }
        return false;
    }

    /**
     * 判断当前网络是否是2G网络
     * 
     * @param context
     * @return boolean
     */
    public static boolean is2G(Context context) {
        ConnectivityManager connectivityManager = (ConnectivityManager) context
                .getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo activeNetInfo = connectivityManager.getActiveNetworkInfo();
        if (activeNetInfo != null
                && (activeNetInfo.getSubtype() == TelephonyManager.NETWORK_TYPE_EDGE
                        || activeNetInfo.getSubtype() == TelephonyManager.NETWORK_TYPE_GPRS ||

                activeNetInfo.getSubtype() == TelephonyManager.NETWORK_TYPE_CDMA)) {
            return true;
        }
        return false;
    }

    /**
     * wifi是否打开
     */
    public static boolean isWifiEnabled(Context context) {
        ConnectivityManager mgrConn = (ConnectivityManager) context
                .getSystemService(Context.CONNECTIVITY_SERVICE);
        TelephonyManager mgrTel = (TelephonyManager) context
                .getSystemService(Context.TELEPHONY_SERVICE);
        return ((mgrConn.getActiveNetworkInfo() != null && mgrConn
                .getActiveNetworkInfo().getState() == NetworkInfo.State.CONNECTED) || mgrTel
                .getNetworkType() == TelephonyManager.NETWORK_TYPE_UMTS);
    }

    /**
     * 获得本机ip地址
     * 
     * @return
     */
    public static String GetHostIp() {
        try {
            for (Enumeration<NetworkInterface> en = NetworkInterface
                    .getNetworkInterfaces(); en.hasMoreElements();) {
                NetworkInterface intf = en.nextElement();
                for (Enumeration<InetAddress> ipAddr = intf.getInetAddresses(); ipAddr
                        .hasMoreElements();) {
                    InetAddress inetAddress = ipAddr.nextElement();
                    if (!inetAddress.isLoopbackAddress()) {
                        return inetAddress.getHostAddress();
                    }
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    /**
     * 获取本机串号imei
     * 
     * @param context
     * @return
     */
    public static String getIMEI(Context context) {
        TelephonyManager telephonyManager = (TelephonyManager) context
                .getSystemService(Context.TELEPHONY_SERVICE);
        return telephonyManager.getDeviceId();
    }

}