네트워크 상태

Button goButton= (Button) findViewById(R.id.go);

goButton.setOnClickListener(new View.OnClickListener() {

  public void onClick(View v) {
  
    ConnectivityManager  cm= (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
    
    NetworkInfo  wifi_info= cm.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
    boolean  isWifiAvail= wifi_info.isAvailable();
    boolean  isWifiConn= wifi_info.isConnected();
    
    NetworkInfo  mobile_info= cm.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);
    boolean  isMobileAvail= mobile_info.isAvailable();
    boolean  isMobileConn= mobile_info.isConnected();
    
    text_switcher.setText("WiFi\nAvail= "+ isWifiAvail+ "\nConn= " + isWifiConn+
    "\nMobile\nAvail= "+ isMobileAvail+ "\nConn= " + isMobileConn);
    
}});