Android 判断当前网络 wifi ctwap(cmwap) ctnet(cmnet)

package lab.sodino.net; 

  

 import java.net.InetAddress; 

  

 import android.app.Activity; 

 import android.content.Context; 

 import android.net.ConnectivityManager; 

 import android.net.NetworkInfo; 

 import android.net.wifi.WifiInfo; 

 import android.net.wifi.WifiManager; 

 import android.os.Bundle; 

 import android.widget.ScrollView; 

 import android.widget.TextView; 

  

 public class NetAct extends Activity { 

  private TextView textView; 

  

  public void onCreate(Bundle savedInstanceState) { 

  super.onCreate(savedInstanceState); 

  textView = new TextView(this); 

  textView.setBackgroundColor(0xffffffff); 

  textView.setTextColor(0xff0000ff); 

  textView.setTextSize(15.0f); 

  textView.setScrollBarStyle(TextView.SCROLLBARS_OUTSIDE_OVERLAY); 

  

  ScrollView scrollView = new ScrollView(this); 

  scrollView.addView(textView); 

  setContentView(scrollView); 

  getLocalHost(); 

  getWifiInfo(); 

  initNetworkInfo(); 

  } 

  

  private void getLocalHost() { 

  try { 

  InetAddress iAdd = InetAddress.getLocalHost(); 

  String line = ""; 

  String hostName = iAdd.getHostName(); 

  if (hostName != null) { 

  InetAddress[] adds = InetAddress.getAllByName(hostName); 

  for (int i = 0; i  < adds.length; i++) { 

  iAdd = adds[i]; 

  line = "HostName=" + iAdd.getHostName() + "\n"; 

  textView.append(line); 

  line = "CanonicalHostName=" + iAdd.getCanonicalHostName() 

  + "\n"; 

  textView.append(line); 

  line = "HostAddress=" + iAdd.getHostAddress() + "\n"; 

  textView.append(line); 

  textView.append("\n"); 

  } 

  } 

  } catch (Exception e) { 

  e.printStackTrace(); 

  

  } 

  } 

  

  public void getWifiInfo() { 

  WifiManager wifi = (WifiManager) getSystemService(Context.WIFI_SERVICE); 

  WifiInfo info = wifi.getConnectionInfo(); 

  textView.append("HiddenSSID=" + info.getHiddenSSID() + "\n"); 

  textView.append("IpAddress=" + info.getIpAddress() + "\n"); 

  textView.append("LinkSpeed=" + info.getLinkSpeed() + "\n"); 

  textView.append("NetworkId=" + info.getNetworkId() + "\n"); 

  textView.append("Rssi=" + info.getRssi() + "\n"); 

  textView.append("SSID=" + info.getSSID() + "\n"); 

  textView.append("MacAddress=" + info.getMacAddress() + "\n"); 

  } 

  

  public void initNetworkInfo() { 

  ConnectivityManager mag = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE); 

  // 此处输出当前可用网络 

  textView.append("\nActive:\n"); 

  NetworkInfo info = mag.getActiveNetworkInfo(); 

  textView.append("ExtraInfo=" + info.getExtraInfo() + "\n"); 

  textView.append("SubtypeName=" + info.getSubtypeName() + "\n"); 

  textView.append("TypeName=" + info.getTypeName() + "\n"); 

  

  textView.append("\nWifi:\n"); 

  NetworkInfo wifiInfo = mag 

  .getNetworkInfo(ConnectivityManager.TYPE_WIFI); 

  

  textView.append("ExtraInfo=" + wifiInfo.getExtraInfo() + "\n"); 

  textView.append("SubtypeName=" + wifiInfo.getSubtypeName() + "\n"); 

  textView.append("TypeName=" + wifiInfo.getTypeName() + "\n"); 

  NetworkInfo mobInfo = mag 

  .getNetworkInfo(ConnectivityManager.TYPE_MOBILE); 

  textView.append("\nMobile:\n"); 

  textView.append("ExtraInfo=" + mobInfo.getExtraInfo() + "\n"); 

  textView.append("SubtypeName=" + mobInfo.getSubtypeName() + "\n"); 

  textView.append("TypeName=" + mobInfo.getTypeName() + "\n"); 

  } 

 } 

转：http://ming-fanglin.iteye.com/blog/805549