android 网络判断工具类（APN+WIFI）

public class NetWorkHelper {private static String LOG_TAG = "NetWorkHelper";public static Uri uri = Uri.parse("content://telephony/carriers");/** * 判断是否有网络连接 */public static boolean isNetworkAvailable(Context context) {ConnectivityManager connectivity = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);if (connectivity == null) {Log.w(LOG_TAG, "couldn't get connectivity manager");} else {NetworkInfo[] info = connectivity.getAllNetworkInfo();if (info != null) {for (int i = 0; i < info.length; i++) {if (info[i].isAvailable()) {Log.d(LOG_TAG, "network is available");return true;}}}}Log.d(LOG_TAG, "network is not available");return false;}public static boolean checkNetState(Context context){    boolean netstate = false;ConnectivityManager connectivity = (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);if(connectivity != null){NetworkInfo[] info = connectivity.getAllNetworkInfo();if (info != null) {for (int i = 0; i < info.length; i++){if (info[i].getState() == NetworkInfo.State.CONNECTED) {netstate = true;break;}}}}return netstate;    }/** * 判断网络是否为漫游 */public static boolean isNetworkRoaming(Context context) {ConnectivityManager connectivity = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);if (connectivity == null) {Log.w(LOG_TAG, "couldn't get connectivity manager");} else {NetworkInfo info = connectivity.getActiveNetworkInfo();if (info != null&& info.getType() == ConnectivityManager.TYPE_MOBILE) {TelephonyManager tm = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);if (tm != null && tm.isNetworkRoaming()) {Log.d(LOG_TAG, "network is roaming");return true;} else {Log.d(LOG_TAG, "network is not roaming");}} else {Log.d(LOG_TAG, "not using mobile network");}}return false;}/** * 判断MOBILE网络是否可用 *  * @param context * @return * @throws Exception */public static boolean isMobileDataEnable(Context context) throws Exception {ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);boolean isMobileDataEnable = false;isMobileDataEnable = connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE).isConnectedOrConnecting();return isMobileDataEnable;}/** * 判断wifi 是否可用 * @param context * @return * @throws Exception */public static boolean isWifiDataEnable(Context context) throws Exception {ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);boolean isWifiDataEnable = false;isWifiDataEnable = connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI).isConnectedOrConnecting();return isWifiDataEnable;}/** * 设置Mobile网络开关 *  * @param context * @param enabled * @throws Exception */public static void setMobileDataEnabled(Context context, boolean enabled)throws Exception {APNManager apnManager=APNManager.getInstance(context);List<APN> list = apnManager.getAPNList();if (enabled) {for (APN apn : list) {ContentValues cv = new ContentValues();cv.put("apn", apnManager.matchAPN(apn.apn));cv.put("type", apnManager.matchAPN(apn.type));context.getContentResolver().update(uri, cv, "_id=?",new String[] { apn.apnId });}} else {for (APN apn : list) {ContentValues cv = new ContentValues();cv.put("apn", apnManager.matchAPN(apn.apn) + "mdev");cv.put("type", apnManager.matchAPN(apn.type) + "mdev");context.getContentResolver().update(uri, cv, "_id=?",new String[] { apn.apnId });}}}}
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