网络判断工具类

使用网络判断工具类在请求数据前，进行判断网络，如果网络状态OK，继续执行，反之给予合理提示

package org.easycoding.mobile.android.utils;

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

public class NetStateUtils {

/**
* 判断网络连接状态
*
* @param context
* @return  true：网络已链接， false：网络已断开连接
*/
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;
}

/**
* 判断wifi状态
*
* @param context
* @return true：是wifi情况 ，false：非wifi情况
*/
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;
}

/**
* 判断移动网络
*
* @param context
* @return true：是移动网络情况， false：非移动网络情况
*/
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;
}

/**
* 获取连接类型
*
* @param context
* @return
*/
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;
}
}

//使用工具类对象调用判断网络连接的方法，网络可用返回true，不可用返回false
boolean networkConnected = NetStateUtils.isNetworkConnected(MainActivity.this);
if(networkConnected)
{
//请求网络
getNetWork(url);
}
else
{
Toast.makeText(MainActivity.this,"网络不可用,请检测网络",0).show();
}