判断用户是否有网络, wifi or moblie network

来源：互联网发布：招标网源码编辑：程序博客网时间：2024/05/17 10:42
public class NetUtil {/** * 检查用户的网络:是否有网络 */public static boolean checkNet(Context context) {// 判断：WIFI链接boolean isWIFI = isWIFIConnection(context);// 判断：Mobile链接boolean isMOBILE = isMOBILEConnection(context);// 如果Mobile在链接，判断是哪个APN被选中了if (isMOBILE) {// APN被选中,的代理信息是否有内容，如果有wap方式readAPN(context);// 判断是哪个APN被选中了}if (!isWIFI && !isMOBILE) {return false;}return true;}/** * APN被选中,的代理信息是否有内容，如果有wap方式 *  * @param context */private static void readAPN(Context context) {Uri PREFERRED_APN_URI = Uri.parse("content://telephony/carriers/preferapn");//4.0模拟器屏蔽掉该权限// 操作联系人类似ContentResolver resolver = context.getContentResolver();// 判断是哪个APN被选中了Cursor cursor = resolver.query(PREFERRED_APN_URI, null, null, null, null);if(cursor!=null&&cursor.moveToFirst()){GlobalParams.PROXY=cursor.getString(cursor.getColumnIndex("proxy"));GlobalParams.PORT=cursor.getInt(cursor.getColumnIndex("port"));}}/** * 判断：Mobile链接 *  * @param context * @return */private static boolean isMOBILEConnection(Context context) {ConnectivityManager manager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);NetworkInfo networkInfo = manager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);if (networkInfo != null) {return networkInfo.isConnected();}return false;}/** * 判断：WIFI链接 *  * @param context * @return */private static boolean isWIFIConnection(Context context) {ConnectivityManager manager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);NetworkInfo networkInfo = manager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);if (networkInfo != null) {return networkInfo.isConnected();}return false;}}
0 0