android开发之网络判断的工具类

/**
* @类名:NetUtil
* @类描述:网络判断处理类
* @创建时间:2015年2月12日-上午9:34:32
* @修改人:
* @修改时间:
* @修改备注:
* @版本:
*/
public class NetUtil {
/* 网络状态 */
public static boolean isNet = true;
public static enum netType
{
wifi, CMNET, CMWAP, noneNet
}

/**
* @方法说明:判断WIFI网络是否可用
* @方法名称:isWifiConnected
* @param context
* @return
* @返回值:boolean
*/
public static boolean isWifiConnected(Context context)
{
if (context != null)
{
ConnectivityManager mConnectivityManager = (ConnectivityManager) context
.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo mWiFiNetworkInfo = mConnectivityManager
.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
if (mWiFiNetworkInfo != null)
{
return mWiFiNetworkInfo.isAvailable();
}
}
return false;
}

/**
* @方法说明:判断MOBILE网络是否可用
* @方法名称:isMobileConnected
* @param context
* @return
* @返回值:boolean
*/
public static boolean isMobileConnected(Context context)
{
if (context != null)
{
ConnectivityManager mConnectivityManager = (ConnectivityManager) context
.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo mMobileNetworkInfo = mConnectivityManager
.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);
if (mMobileNetworkInfo != null)
{
return mMobileNetworkInfo.isAvailable();
}
}
return false;
}

/**
* @方法说明:获取当前网络连接的类型信息
* @方法名称:getConnectedType
* @param context
* @return
* @返回值:int
*/
public static int getConnectedType(Context context)
{
if (context != null)
{
ConnectivityManager mConnectivityManager = (ConnectivityManager) context
.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo mNetworkInfo = mConnectivityManager
.getActiveNetworkInfo();
if (mNetworkInfo != null && mNetworkInfo.isAvailable())
{
return mNetworkInfo.getType();
}
}
return -1;
}

/**
* @方法说明:获取当前的网络状态 -1：没有网络 1：WIFI网络2：wap 网络3：net网络
* @方法名称:getAPNType
* @param context
* @return
* @返回值:netType
*/
public static netType getAPNType(Context context)
{
ConnectivityManager connMgr = (ConnectivityManager) context
.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo networkInfo = connMgr.getActiveNetworkInfo();
if (networkInfo == null)
{
return netType.noneNet;
}
int nType = networkInfo.getType();

if (nType == ConnectivityManager.TYPE_MOBILE)
{
if (networkInfo.getExtraInfo().toLowerCase().equals("cmnet"))
{
return netType.CMNET;
}

else
{
return netType.CMWAP;
}
} else if (nType == ConnectivityManager.TYPE_WIFI)
{
return netType.wifi;
}
return netType.noneNet;

}

/**
* @方法说明:判断是否有网络连接
* @方法名称:isNetworkConnected
* @param context
* @return
* @返回值:boolean
*/
public static boolean isNetworkConnected(Context context) {
if (context != null) {
ConnectivityManager mConnectivityManager = (ConnectivityManager) context
.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo mNetworkInfo = mConnectivityManager
.getActiveNetworkInfo();
if (mNetworkInfo != null) {
return mNetworkInfo.isAvailable();
}
}
return false;
}

/**
* @方法说明:网络是否可用
* @方法名称:isNetworkAvailable
* @param context
* @return
* @返回值:boolean
*/
public static boolean isNetworkAvailable(Context context)
{
ConnectivityManager mgr = (ConnectivityManager) context
.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo[] info = mgr.getAllNetworkInfo();
if (info != null)
{
for (int i = 0; i < info.length; i++)
{
if (info[i].getState() == NetworkInfo.State.CONNECTED)
{
return true;
}
}
}
return false;
}

/**
* @方法说明:判断是否是手机网络
* @方法名称:is3GNet
* @param context
* @return
* @返回值:boolean
*/
public static boolean is3GNet(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;
}
}