前言：借鉴了几位大牛的网络状态工具类，自己整合了一个。功能包含有：网络是否连接，wifi是否打开，是否wifi连接，Gps是否打开，是否3G网络，获取连接网络类型(3G/4G/wifi,包含运营商信息)，打开设置页面，等等。
/**
* @desc
* @auth 方毅超
* @time 2017/10/27 14:29
*/
public class NetworkUtil {
private NetworkUtil() {
/* cannot be instantiated */
throw new UnsupportedOperationException("cannot be instantiated");
}
/**
* 判断网络是否连接
*
* @param context
* @return
*/
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()) {
return true;
}
}
return false;
}
/**
* wifi是否打开
*/
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wifi连接
*/
public static boolean isWifi(Context context) {
ConnectivityManager cm = (ConnectivityManager) context
.getSystemService(Context.CONNECTIVITY_SERVICE);
if (cm == null)
return false;
return cm.getActiveNetworkInfo().getType() == ConnectivityManager.TYPE_WIFI;
}
/**
* Gps是否打开
*
* @param context
* @return
*/
public static boolean isGpsEnabled(Context context) {
LocationManager locationManager = ((LocationManager) context
.getSystemService(Context.LOCATION_SERVICE));
List<String> accessibleProviders = locationManager.getProviders(true);
return accessibleProviders != null && accessibleProviders.size() > 0;
}
/**
* 判断当前网络是否3G网络
*
* @param context
* @return boolean
*/
public static boolean is3G(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;
}
/**
* 打开网络设置界面
*/
public static void openSetting(Activity activity) {
Intent intent = new Intent("/");
ComponentName cm = new ComponentName("com.android.settings",
"com.android.settings.WirelessSettings");
intent.setComponent(cm);
intent.setAction("android.intent.action.VIEW");
activity.startActivityForResult(intent, 0);
}
/**
* 获取连接网络类型(3G/4G/wifi,包含运营商信息)
*
* @param context
* @return 返回连接网络类型(运营商3G/4G/wifi)，如果网络未连接，返回"";
*/
public static String getNetworkType(Context context) {
String networkType = "";
networkType = getNetworkTypeNoProvider(context);
// 如果使用的数据流量，则添加运营商信息
if (networkType.contains("G")) {
networkType = getProvider(context) + networkType;
}
return networkType;
}
/**
* 获取运营商
*
* @return 中国移动/中国联通/中国电信/未知
*/
private static String getProvider(Context context) {
String provider = "未知";
try {
TelephonyManager telephonyManager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
String IMSI = telephonyManager.getSubscriberId();
Log.d(TAG, "getProvider.IMSI:" + IMSI);
if (IMSI == null) {
if (TelephonyManager.SIM_STATE_READY == telephonyManager.getSimState()) {
String operator = telephonyManager.getSimOperator();
Log.d(TAG, "getProvider.operator:" + operator);
if (operator != null) {
if (operator.equals("46000") || operator.equals("46002") || operator.equals("46007")) {
provider = "中国移动";
} else if (operator.equals("46001")) {
provider = "中国联通";
} else if (operator.equals("46003")) {
provider = "中国电信";
}
}
}
} else {
if (IMSI.startsWith("46000") || IMSI.startsWith("46002") || IMSI.startsWith("46007")) {
provider = "中国移动";
} else if (IMSI.startsWith("46001")) {
provider = "中国联通";
} else if (IMSI.startsWith("46003")) {
provider = "中国电信";
}
}
} catch (Exception e) {
e.printStackTrace();
}
return provider;
}
/**
* 获取连接网络类型(3G/4G/wifi,不包含运营商信息)
*
* @param context
* @return 返回结果中，不包含运营商，返回连接网络类型(3G/4G/wifi)，如果网络未连接，返回"";
*/
private static String getNetworkTypeNoProvider(Context context) {
String strNetworkType = "";
NetworkInfo networkInfo = ((ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE))
.getActiveNetworkInfo();
if (networkInfo != null && networkInfo.isConnected()) {
if (networkInfo.getType() == ConnectivityManager.TYPE_WIFI) {
strNetworkType = "wifi";
} else if (networkInfo.getType() == ConnectivityManager.TYPE_MOBILE) {
String _strSubTypeName = networkInfo.getSubtypeName();
Log.d(TAG, "Network getSubtypeName : " + _strSubTypeName);
// TD-SCDMA networkType is 17
int networkType = networkInfo.getSubtype();
switch (networkType) {
case TelephonyManager.NETWORK_TYPE_GPRS: // 联通2G
case TelephonyManager.NETWORK_TYPE_EDGE: // 移动2G
case TelephonyManager.NETWORK_TYPE_CDMA: // 电信2G
case TelephonyManager.NETWORK_TYPE_1xRTT:
case TelephonyManager.NETWORK_TYPE_IDEN: // api<8 : replace by 11
strNetworkType = "2G";
break;
case TelephonyManager.NETWORK_TYPE_EVDO_A: // 电信3G
case TelephonyManager.NETWORK_TYPE_UMTS:
case TelephonyManager.NETWORK_TYPE_EVDO_0:
case TelephonyManager.NETWORK_TYPE_HSDPA:
case TelephonyManager.NETWORK_TYPE_HSUPA:
case TelephonyManager.NETWORK_TYPE_HSPA:
case TelephonyManager.NETWORK_TYPE_EVDO_B: // api<9 : replace by 14
case TelephonyManager.NETWORK_TYPE_EHRPD: // api<11 : replace by 12
case TelephonyManager.NETWORK_TYPE_HSPAP: // api<13 : replace by 15
strNetworkType = "3G";
break;
case TelephonyManager.NETWORK_TYPE_LTE: // api<11 : replace by 13
strNetworkType = "4G";
break;
default:
if (_strSubTypeName.equalsIgnoreCase("TD-SCDMA") ||
_strSubTypeName.equalsIgnoreCase("WCDMA") ||
_strSubTypeName.equalsIgnoreCase("CDMA2000")) {
strNetworkType = "3G";
} else {
strNetworkType = _strSubTypeName;
}
break;
}
Log.d(TAG, "Network getSubtype : " + Integer.valueOf(networkType).toString());
}
}
Log.d(TAG, "Network Type : " + strNetworkType);
return strNetworkType;
}
}
后记：2017-10-30，应网友的反应，稍微将该类做了下清爽型的整理。
