Get signal strength of WIFI and Mobile Data

问题:

In my app I need to check the connection speed of both WiFi and Mobile Data and then compare it, then switch to which ever network has the highest speed.

• So how can I get the speed or best signal strength of wifi and mobile data?
• how can I switch one off and other on programatically.

Please help me out. A sample would be helpful.

回答1:

Wifi:

WifiManager wifiManager = (WifiManager)context.getSystemService(Context.WIFI_SERVICE);
int linkSpeed = wifiManager.getConnectionInfo().getRssi();

In case of mobile it should work:

TelephonyManager telephonyManager =        (TelephonyManager)this.getSystemService(Context.TELEPHONY_SERVICE);
CellInfoGsm cellinfogsm = (CellInfoGsm)telephonyManager.getAllCellInfo().get(0);
CellSignalStrengthGsm cellSignalStrengthGsm = cellinfogsm.getCellSignalStrength();
cellSignalStrengthGsm.getDbm();

Then You should compare this signal levels and if WIFI signal is better keep it turn on, but if mobile is better disconnect wifi