android中判断当前网络连接状态是wifi还是3G

// 获取代表联网状态的NetWorkInfo对象 NetworkInfo networkInfo = connManager.getActiveNetworkInfo();
// 获取当前的网络连接是否可用 if (null == networkInfo){Toast.makeText(this, "当前的网络连接不可用", Toast.LENGTH_SHORT).show();
//当网络不可用时，跳转到网络设置页面 startActivityForResult(new Intent(
android.provider.Settings.ACTION_WIRELESS_SETTINGS), 1);} else {boolean available = networkInfo.isAvailable();
if (available){Log.i("通知", "当前的网络连接可用");
Toast.makeText(this, "当前的网络连接可用", Toast.LENGTH_SHORT).show();} else {Log.i("通知", "当前的网络连接不可用");
Toast.makeText(this, "当前的网络连接不可用", Toast.LENGTH_SHORT).show();}}State state = connManager.getNetworkInfo(
ConnectivityManager.TYPE_MOBILE).getState();
if (State.CONNECTED == state){Log.i("通知", "GPRS网络已连接");
Toast.makeText(this, "GPRS网络已连接", Toast.LENGTH_SHORT).show();}state = connManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI)
.getState();
if (State.CONNECTED == state){Log.i("通知", "WIFI网络已连接");
Toast.makeText(this, "WIFI网络已连接", Toast.LENGTH_SHORT).show();}//// 跳转到无线网络设置界面
// startActivity(new
// Intent(android.provider.Settings.ACTION_WIRELESS_SETTINGS));
//// 跳转到无限wifi网络设置界面
// startActivity(new
// Intent(android.provider.Settings.ACTION_WIFI_SETTINGS)); }也可以：
privatevoid testConnectivityManager(){ConnectivityManager conMan = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
//mobile 3G Network State mobile = conMan.getNetworkInfo(ConnectivityManager.TYPE_MOBILE).getState();
Log.d(mobile.toString());
//wifi Network State wifi = conMan.getNetworkInfo(ConnectivityManager.TYPE_WIFI).getState();
Log.d(wifi.toString());
//如果3G网络和wifi网络都未连接，且不是处于正在连接状态 则进入Network Setting界面 由用户配置网络连接if(mobile==State.CONNECTED||mobile==State.CONNECTING)return;if(wifi==State.CONNECTED||wifi==State.CONNECTING)return;startActivity(new Intent(Settings.ACTION_WIRELESS_SETTINGS));//进入无线网络配置界面
//startActivity(new Intent(Settings.ACTION_WIFI_SETTINGS)); //进入手机中的wifi网络设置界面 }