需要用到上面的方法
12.判断手机连接的网络类型(2G,3G,4G)
联通的3G为UMTS或HSDPA，移动和联通的2G为GPRS或EGDE，电信的2G为CDMA，电信的3G为EVDO
public class Constants {
/**
* Unknown network class
*/
public static final int NETWORK_CLASS_UNKNOWN = 0;
/**
* wifi net work
*/
public static final int NETWORK_WIFI = 1;
/**
* "2G" networks
*/
public static final int NETWORK_CLASS_2_G = 2;
/**
* "3G" networks
*/
public static final int NETWORK_CLASS_3_G = 3;
/**
* "4G" networks
*/
public static final int NETWORK_CLASS_4_G = 4;
}
public static int getNetWorkClass(Context context) {
TelephonyManager telephonyManager = (TelephonyManager) context
.getSystemService(Context.TELEPHONY_SERVICE);
switch (telephonyManager.getNetworkType()) {
case TelephonyManager.NETWORK_TYPE_GPRS:
case TelephonyManager.NETWORK_TYPE_EDGE:
case TelephonyManager.NETWORK_TYPE_CDMA:
case TelephonyManager.NETWORK_TYPE_1xRTT:
case TelephonyManager.NETWORK_TYPE_IDEN:
return Constants.NETWORK_CLASS_2_G;
case TelephonyManager.NETWORK_TYPE_UMTS:
case TelephonyManager.NETWORK_TYPE_EVDO_0:
case TelephonyManager.NETWORK_TYPE_EVDO_A:
case TelephonyManager.NETWORK_TYPE_HSDPA:
case TelephonyManager.NETWORK_TYPE_HSUPA:
case TelephonyManager.NETWORK_TYPE_HSPA:
case TelephonyManager.NETWORK_TYPE_EVDO_B:
case TelephonyManager.NETWORK_TYPE_EHRPD:
case TelephonyManager.NETWORK_TYPE_HSPAP:
return Constants.NETWORK_CLASS_3_G;
case TelephonyManager.NETWORK_TYPE_LTE:
return Constants.NETWORK_CLASS_4_G;
default:
return Constants.NETWORK_CLASS_UNKNOWN;
}
}
13.判断当前手机的网络类型(WIFI还是2,3,4G)
public static int getNetWorkStatus(Context context) {
int netWorkType = Constants.NETWORK_CLASS_UNKNOWN;
ConnectivityManager connectivityManager = (ConnectivityManager) context
.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo networkInfo = connectivityManager.getActiveNetworkInfo();
if (networkInfo != null && networkInfo.isConnected()) {
int type = networkInfo.getType();
if (type == ConnectivityManager.TYPE_WIFI) {
netWorkType = Constants.NETWORK_WIFI;
} else if (type == ConnectivityManager.TYPE_MOBILE) {
netWorkType = getNetWorkClass(context);
}
}
return netWorkType;
}