/**
* http://developer.android.com/training/monitoring-device-state/connectivity-monitoring.html
* http://developer.android.com/training/basics/network-ops/managing.html
*
* @param context
* @return
*/
public static boolean isNetworkAvailable(final Context context, final boolean mobile) {
boolean available = false;
try {
final ConnectivityManager connectivitymanager =
(ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
final NetworkInfo networkinfo = connectivitymanager.getActiveNetworkInfo();
if ((networkinfo != null) && networkinfo.isConnectedOrConnecting()) {
switch (networkinfo.getType()) {
case ConnectivityManager.TYPE_WIFI:
case ConnectivityManager.TYPE_WIMAX:
case ConnectivityManager.TYPE_ETHERNET:
available = true;
break;
case ConnectivityManager.TYPE_MOBILE:
if (mobile) {
available = true;
}
break;
}
}
} catch (Throwable x) {
DBG.m(x);
}
return available;
}
@Override
public LinkQualityInfo getLinkQualityInfo() {
if (mNetworkInfo == null || mNetworkInfo.getType() == ConnectivityManager.TYPE_NONE) {
// no data available yet; just return
return null;
}
MobileLinkQualityInfo li = new MobileLinkQualityInfo();
li.setNetworkType(mNetworkInfo.getType());
mSamplingDataTracker.setCommonLinkQualityInfoFields(li);
if (mNetworkInfo.getSubtype() != TelephonyManager.NETWORK_TYPE_UNKNOWN) {
li.setMobileNetworkType(mNetworkInfo.getSubtype());
NetworkDataEntry entry = getNetworkDataEntry(mNetworkInfo.getSubtype());
if (entry != null) {
li.setTheoreticalRxBandwidth(entry.downloadBandwidth);
li.setTheoreticalRxBandwidth(entry.uploadBandwidth);
li.setTheoreticalLatency(entry.latency);
}
if (mSignalStrength != null) {
li.setNormalizedSignalStrength(
getNormalizedSignalStrength(li.getMobileNetworkType(), mSignalStrength));
}
}
SignalStrength ss = mSignalStrength;
if (ss != null) {
li.setRssi(ss.getGsmSignalStrength());
li.setGsmErrorRate(ss.getGsmBitErrorRate());
li.setCdmaDbm(ss.getCdmaDbm());
li.setCdmaEcio(ss.getCdmaEcio());
li.setEvdoDbm(ss.getEvdoDbm());
li.setEvdoEcio(ss.getEvdoEcio());
li.setEvdoSnr(ss.getEvdoSnr());
li.setLteSignalStrength(ss.getLteSignalStrength());
li.setLteRsrp(ss.getLteRsrp());
li.setLteRsrq(ss.getLteRsrq());
li.setLteRssnr(ss.getLteRssnr());
li.setLteCqi(ss.getLteCqi());
}
if (VDBG) {
Slog.d(
TAG,
"Returning LinkQualityInfo with"
+ " MobileNetworkType = "
+ String.valueOf(li.getMobileNetworkType())
+ " Theoretical Rx BW = "
+ String.valueOf(li.getTheoreticalRxBandwidth())
+ " gsm Signal Strength = "
+ String.valueOf(li.getRssi())
+ " cdma Signal Strength = "
+ String.valueOf(li.getCdmaDbm())
+ " evdo Signal Strength = "
+ String.valueOf(li.getEvdoDbm())
+ " Lte Signal Strength = "
+ String.valueOf(li.getLteSignalStrength()));
}
return li;
}