CheckNetType.java

package com.jqmobile.core.android.time.impl;

import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.telephony.TelephonyManager;

public class CheckNetType {

	public String checkNetType(Context mContext) {
		ConnectivityManager connectMgr = (ConnectivityManager) mContext
				.getSystemService(Context.CONNECTIVITY_SERVICE);

		NetworkInfo info = connectMgr.getActiveNetworkInfo();
		if (info == null) {
			return "������";
		} else {
			if (info.getType() == ConnectivityManager.TYPE_WIFI) {
				return "wifi����";
			}
			if (info.getType() == ConnectivityManager.TYPE_MOBILE) {
				switch (info.getSubtype()) {
				case TelephonyManager.NETWORK_TYPE_UMTS:
				case TelephonyManager.NETWORK_TYPE_HSUPA:
					return "��ͨ3G����";
				case TelephonyManager.NETWORK_TYPE_EDGE:
				case TelephonyManager.NETWORK_TYPE_GPRS:
					return "�ƶ�����ͨ2G����";
				case TelephonyManager.NETWORK_TYPE_CDMA:
					return "����2G����";
				case TelephonyManager.NETWORK_TYPE_EVDO_0:
					return "����3G����";
				default:
					break;
				}
			}
		}

		return null;
	}
}