android判斷網路是否是wifi

1. android判斷網路是否連接，跳轉到設置頁面以及判斷連接的是什麼網路

直接看頂部的通知欄就可以了，E、G是2g網H是3g網

2. android 如何判斷當前網路比如說是WI-FI還是移動網路 在線等啊

先取的所有連接
NetworkInfo[] networkInfos = ConnectivityManager.getAllNetworkInfo();

對每一個networkInfo 判斷
networkInfo.getState() == NetworkInfo.State.CONNECTED
判斷哪個是正在連接著的

然後用
networkInfo.getType()
獲得 是 ConnectivityManager.TYPE_MOBILE 還是 TYPE_WIFI

3. android 判斷當前的網路連接是wifi還是3g，4g csdn

/**
* 判斷是否是wifi連接
*/
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;

}
/**
* 判斷網路是否連接
*
*/
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 怎麼判斷是否wifi

AndroidAPI有提供獲取網路狀態以及網路類型的介面，代碼也很簡單

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

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

if(networkInfo.getType()==ConnectivityManager.TYPE_WIFI)//這個狀態就是wifi

//TODO

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

{

//TODO

}

}

希望能幫到你

一下這些是源碼中的一些網路類型定義，可以參考一下

5. Android判斷是Wifi還是4G網路代碼

為大家分享了Android判斷是Wifi還是4G網路的具體代碼，供大家參考，具體內容如下
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();
// 獲取手機所有連接管理對象（包括對wi-fi,net等連接的管理）
ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);

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

if (networkInfo != null && networkInfo.length > 0) {
for (NetworkInfo aNetworkInfo : networkInfo) {
// System.out.println(i + "===狀態===" + networkInfo[i].getState());
// System.out.println(i + "===類型===" + networkInfo[i].getTypeName());
// 判斷當前網路狀態是否為連接狀態
if (aNetworkInfo.getState() == NetworkInfo.State.CONNECTED) {
return true;
}
}
}
}
return false;
}

/**
* 判斷WIFI是否打開
* @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);
}

/**
* 判斷是否是3G網路
* @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;
}

/**
* 判斷是wifi還是3g網路
* @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如何檢測網路的類型為3G、2G、wap、wifi .

1、定義常量來標識幾種網路類型 [java] view plain/** 沒有網路 */ public static final int NETWORKTYPE_INVALID = 0; /** wap網路 */ public static final int NETWORKTYPE_WAP = 1; /** 2G網路 */ public static final int NETWORKTYPE_2G = 2; [java] view plain/** 3G和3G以上網路，或統稱為快速網路 */ public static final int NETWORKTYPE_3G = 3; [java] view plain/** wifi網路 */ public static final int NETWORKTYPE_WIFI = 4; 2、判斷是否是FastMobileNetWork，將3G或者3G以上的網路稱為快速網路[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、獲取網路類型是否是2G、3G、wap、wifi等[java] view plain/** * 獲取網路狀態，wifi,wap,2g,3g. * * @param context 上下文 * @return int 網路狀態 {@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) ?