How to detect network type(2G/3G) in J2ME?

问题

In my J2ME application i want to detect network type whether it is 2G or 3G. According to network type, i need to take some different actions. How can it be done by code?

回答1:

For Network type following syntax is used

String value = System.getProperty("com.nokia.network.access");

You can check this artical.

The return values can be as follows,

• pd - Packet data in GSM network

• pd.EDGE - Packet data in EDGE network

• pd.3G - Packet data in 3G network

• pd.HSDPA - High speed downlink packet access for 3G networks

• csd - Circuit switched data, for example GSM CSD/HSCSD data call

• bt_pan - Bluetooth PAN network

• wlan - Wireless network, for example 802.11b, 802.11G or WiMaX

• na - Not applicable, the implementation can’t determine the type

So based on return value, you can get the Network Type.

来源：https://stackoverflow.com/questions/9747613/how-to-detect-network-type2g-3g-in-j2me