Android中判断网络连接是否可用的方法总结

2019-12-12 03:04:04

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Android 网路判断

判断当前网络是否是wifi

/**   * 判断当前是否是wifi   * @param mContext   * @return   */  private static boolean isWifi(Context mContext) {     ConnectivityManager connectivityManager = (ConnectivityManager) mContext         .getSystemService(Context.CONNECTIVITY_SERVICE);     NetworkInfo activeNetInfo = connectivityManager.getActiveNetworkInfo();     if (activeNetInfo != null         && activeNetInfo.getType() == ConnectivityManager.TYPE_WIFI) {       return true;     }     return false;   } }

一、判断网络连接是否可用

public static boolean isNetworkAvailable(Context context) {  ConnectivityManager cm = (ConnectivityManager) context   .getSystemService(Context.CONNECTIVITY_SERVICE);  if (cm == null) {  } else {　　　　　　　//如果仅仅是用来判断网络连接　　　　　　 //则可以使用 cm.getActiveNetworkInfo().isAvailable();   NetworkInfo[] info = cm.getAllNetworkInfo();   if (info != null) {   for (int i = 0; i < info.length; i++) {    if (info[i].getState() == NetworkInfo.State.CONNECTED) {    return true;    }   }   }  }  return false;  }

二、判断GPS是否打开

 public static boolean isGpsEnabled(Context context) {  LocationManager lm = ((LocationManager) context   .getSystemService(Context.LOCATION_SERVICE));  List<String> accessibleProviders = lm.getProviders(true);  return accessibleProviders != null && accessibleProviders.size() > 0;  }

三、判断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);  }

四、判断是否是3G网络

 public static boolean is3rd(Context context) {  ConnectivityManager cm = (ConnectivityManager) context   .getSystemService(Context.CONNECTIVITY_SERVICE);  NetworkInfo networkINfo = cm.getActiveNetworkInfo();  if (networkINfo != null   && networkINfo.getType() == ConnectivityManager.TYPE_MOBILE) {   return true;  }  return false;  }

五、判断是wifi还是3g网络,用户的体现性在这里了，wifi就可以建议下载或者在线播放。

public static boolean isWifi(Context context) {   ConnectivityManager cm = (ConnectivityManager) context    .getSystemService(Context.CONNECTIVITY_SERVICE);   NetworkInfo networkINfo = cm.getActiveNetworkInfo();   if (networkINfo != null    && networkINfo.getType() == ConnectivityManager.TYPE_WIFI) {   return true;   }   return false;  }

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