android判断网络是否是wifi

1. android判断网络是否连接，跳转到设置页面以及判断连接的是什么网络

直接看顶部的通知栏就可以了，E、G是2g网H是3g网

2. android 如何判断当前网络比如说是WI-FI还是移动网络 在线等啊

先取的所有连接
NetworkInfo[] networkInfos = ConnectivityManager.getAllNetworkInfo();

对每一个networkInfo 判断
networkInfo.getState() == NetworkInfo.State.CONNECTED
判断哪个是正在连接着的

然后用
networkInfo.getType()
获得 是 ConnectivityManager.TYPE_MOBILE 还是 TYPE_WIFI

3. android 判断当前的网络连接是wifi还是3g，4g csdn

/**
* 判断是否是wifi连接
*/
public static boolean isWifi(Context context) {
ConnectivityManager connectivity = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
if (connectivity == null)
return false;
return connectivity.getActiveNetworkInfo().getType() == ConnectivityManager.TYPE_WIFI;

}
/**
* 判断网络是否连接
*
*/
public static boolean isConnected(Context context) {
ConnectivityManager connectivity = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
if (null != connectivity) {
NetworkInfo info = connectivity.getActiveNetworkInfo();
if (null != info && info.isConnected()) {
if (info.getState() == NetworkInfo.State.CONNECTED) {
return true;
}
}
}
return false;
}

4. android 怎么判断是否wifi

AndroidAPI有提供获取网络状态以及网络类型的接口，代码也很简单

NetworkInfonetworkInfo=(ConnectivityManager)getSystemService(Context.CONNECTIVITY_SERVICE).getActiveNetworkInfo();

if(networkInfo!=null&&networkInfo.isConnected()){

if(networkInfo.getType()==ConnectivityManager.TYPE_WIFI)//这个状态就是wifi

//TODO

}elseif(networkInfo.getType()==ConnectivityManager.TYPE_MOBILE)

{

//TODO

}

}

希望能帮到你

一下这些是源码中的一些网络类型定义，可以参考一下

5. Android判断是Wifi还是4G网络代码

为大家分享了Android判断是Wifi还是4G网络的具体代码，供大家参考，具体内容如下
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;
}
}

6. Android如何检测网络的类型为3G、2G、wap、wifi .

1、定义常量来标识几种网络类型 [java] view plain/** 没有网络 */ public static final int NETWORKTYPE_INVALID = 0; /** wap网络 */ public static final int NETWORKTYPE_WAP = 1; /** 2G网络 */ public static final int NETWORKTYPE_2G = 2; [java] view plain/** 3G和3G以上网络，或统称为快速网络 */ public static final int NETWORKTYPE_3G = 3; [java] view plain/** wifi网络 */ public static final int NETWORKTYPE_WIFI = 4; 2、判断是否是FastMobileNetWork，将3G或者3G以上的网络称为快速网络[java] view plain�1�3�1�3�1�3�1�3private static boolean isFastMobileNetwork(Context context) { TelephonyManager telephonyManager = (TelephonyManager)context.getSystemService(Context.TELEPHONY_SERVICE); switch (telephonyManager.getNetworkType()) { case TelephonyManager.NETWORK_TYPE_1xRTT: return false; // ~ 50-100 kbps case TelephonyManager.NETWORK_TYPE_CDMA: return false; // ~ 14-64 kbps case TelephonyManager.NETWORK_TYPE_EDGE: return false; // ~ 50-100 kbps case TelephonyManager.NETWORK_TYPE_EVDO_0: return true; // ~ 400-1000 kbps case TelephonyManager.NETWORK_TYPE_EVDO_A: return true; // ~ 600-1400 kbps case TelephonyManager.NETWORK_TYPE_GPRS: return false; // ~ 100 kbps case TelephonyManager.NETWORK_TYPE_HSDPA: return true; // ~ 2-14 Mbps case TelephonyManager.NETWORK_TYPE_HSPA: return true; // ~ 700-1700 kbps case TelephonyManager.NETWORK_TYPE_HSUPA: return true; // ~ 1-23 Mbps case TelephonyManager.NETWORK_TYPE_UMTS: return true; // ~ 400-7000 kbps case TelephonyManager.NETWORK_TYPE_EHRPD: return true; // ~ 1-2 Mbps case TelephonyManager.NETWORK_TYPE_EVDO_B: return true; // ~ 5 Mbps case TelephonyManager.NETWORK_TYPE_HSPAP: return true; // ~ 10-20 Mbps case TelephonyManager.NETWORK_TYPE_IDEN: return false; // ~25 kbps case TelephonyManager.NETWORK_TYPE_LTE: return true; // ~ 10+ Mbps case TelephonyManager.NETWORK_TYPE_UNKNOWN: return false; default: return false; } } 3、获取网络类型是否是2G、3G、wap、wifi等[java] view plain/** * 获取网络状态，wifi,wap,2g,3g. * * @param context 上下文 * @return int 网络状态 {@link #NETWORKTYPE_2G},{@link #NETWORKTYPE_3G}, *{@link #NETWORKTYPE_INVALID},{@link #NETWORKTYPE_WAP}* {@link #NETWORKTYPE_WIFI} */ public static int getNetWorkType(Context context) { ConnectivityManager manager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo networkInfo = manager.getActiveNetworkInfo(); if (networkInfo != null && networkInfo.isConnected()) { String type = networkInfo.getTypeName(); if (type.equalsIgnoreCase("WIFI")) { mNetWorkType = NETWORKTYPE_WIFI; } else if (type.equalsIgnoreCase("MOBILE")) { String proxyHost = android.net.Proxy.getDefaultHost(); mNetWorkType = TextUtils.isEmpty(proxyHost) ?