安卓 新版本 获取wifi状态网络是否可用等

package com.chengxinet.bobo.utils;

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

/**
* Created by Administrator on 2016/1/7.
*/
public class NetworkUtils {
public static boolean isNetworkAvailable(Context c) {
Context context = c.getApplicationContext();
// 获取手机所有连接管理对象（包括对wi-fi,net等连接的管理）
ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);

if (connectivityManager == null) {
return false;
} else {
// 获取NetworkInfo对象
NetworkInfo[] networkInfo = connectivityManager.getAllNetworkInfo();

if (networkInfo != null && networkInfo.length > 0) {
for (NetworkInfo aNetworkInfo : networkInfo) {
//          System.out.println(i + "===状态===" + networkInfo[i].getState());
//          System.out.println(i + "===类型===" + networkInfo[i].getTypeName());
// 判断当前网络状态是否为连接状态
if (aNetworkInfo.getState() == NetworkInfo.State.CONNECTED) {
return true;
}
}
}
}
return false;
}

/**
* 判断WIFI是否打开
* @param context
* @return
*/
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);
}

/**
* 判断是否是3G网络
* @param context
* @return
*/
public static boolean is3rd(Context context) {
ConnectivityManager cm = (ConnectivityManager) context
.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo networkINfo = cm.getActiveNetworkInfo();
if (networkINfo != null
&& networkINfo.getType() == ConnectivityManager.TYPE_MOBILE) {
return true;
}
return false;
}

/**
* 判断是wifi还是3g网络
* @param context
* @return
*/
public static boolean isWifi(Context context) {
ConnectivityManager cm = (ConnectivityManager) context
.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo networkINfo = cm.getActiveNetworkInfo();
if (networkINfo != null
&& networkINfo.getType() == ConnectivityManager.TYPE_WIFI) {
return true;
}
return false;
}
}

public class ConnectionDetector {

private Context _context;

public ConnectionDetector(Context context) {
this._context = context;
}

public boolean isConnectingToInternet() {
ConnectivityManager connectivity = (ConnectivityManager) _context.getSystemService(Context.CONNECTIVITY_SERVICE);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
Network[] networks = connectivity.getAllNetworks();
NetworkInfo networkInfo;
for (Network mNetwork : networks) {
networkInfo = connectivity.getNetworkInfo(mNetwork);
if (networkInfo.getState().equals(NetworkInfo.State.CONNECTED)) {
return true;
}
}
} else {
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) {
return true;
}
}

}
}

return false;
}}