在我的应用程序上,我有此方法,它告诉我是否有互联网连接,但是我想知道是否有一种方法可以检查它是否是一个良好的网络连接.
public static boolean existInternetConnection() { boolean booThereConnection = false; if (context == null) context = activity.getApplicationContext(); ConnectivityManager cm = (ConnectivityManager) context.getSystemService(context.CONNECTIVITY_SERVICE); NetworkInfo netInfo = cm.getActiveNetworkInfo(); if (netInfo != null && netInfo.isConnectedOrConnecting()) booThereConnection = true; return booThereConnection;}
解决方法:
尝试这个.但是请记住,AndroID一直说WiFi网络总是比移动网络更强大.因此,我的代码用于检查移动数据的强度.
import androID.content.Context;import androID.net.ConnectivityManager;import androID.net.NetworkInfo;import androID.telephony.TelephonyManager;public class Connectivity { /* * HackISH: These constants aren't yet available in my API level (7), but I need to handle these cases if they come up, on newer versions */ public static final int NETWORK_TYPE_EHRPD=14; // Level 11 public static final int NETWORK_TYPE_EVDO_B=12; // Level 9 public static final int NETWORK_TYPE_HSPAP=15; // Level 13 public static final int NETWORK_TYPE_IDEN=11; // Level 8 public static final int NETWORK_TYPE_LTE=13; // Level 11 /** * Check if there is any connectivity * @param context * @return */ public static boolean isConnected(Context context){ ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo info = cm.getActiveNetworkInfo(); return (info != null && info.isConnected()); } /** * Check if there is fast connectivity * @param context * @return */ public static boolean isConnectedFast(Context context){ ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo info = cm.getActiveNetworkInfo(); return (info != null && info.isConnected() && Connectivity.isConnectionFast(info.getType(),info.getSubtype())); } /** * Check if the connection is fast * @param type * @param subType * @return */ public static boolean isConnectionFast(int type, int subType){ if(type==ConnectivityManager.TYPE_WIFI){ System.out.println("CONNECTED VIA WIFI"); return true; }else if(type==ConnectivityManager.TYPE_MOBILE){ switch(subType){ 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 // NOT AVAILABLE YET IN API LEVEL 7 case Connectivity.NETWORK_TYPE_EHRPD: return true; // ~ 1-2 Mbps case Connectivity.NETWORK_TYPE_EVDO_B: return true; // ~ 5 Mbps case Connectivity.NETWORK_TYPE_HSPAP: return true; // ~ 10-20 Mbps case Connectivity.NETWORK_TYPE_IDEN: return false; // ~25 kbps case Connectivity.NETWORK_TYPE_LTE: return true; // ~ 10+ Mbps // UnkNown case TelephonyManager.NETWORK_TYPE_UNKNowN: return false; default: return false; } }else{ return false; } } }
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