android网变化广播接收

package cn.mucang.android.community.esa.library.receiver;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.util.Log;

/**
 * Created by Sanders on 2014/11/4.
 */
public class ChangeReceiver extends BroadcastReceiver {

    private static final String ACTION_CONNECTIVITY_CHANGE = "android.net.conn.CONNECTIVITY_CHANGE";

    /**
     * 加入权限  uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" <br>
     * 接受广播  action android:name="android.net.conn.CONNECTIVITY_CHANGE"
     */
    @Override
    public void onReceive(Context context, Intent intent) {
        String action = intent.getAction();
        if (action.equals(ACTION_CONNECTIVITY_CHANGE)) {
            ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
            NetworkInfo activeNetInfo = connectivityManager.getActiveNetworkInfo();
            NetworkInfo mobNetInfo = connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);
            NetworkInfo wifiNetInfo = connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
            if (activeNetInfo != null) {
                Log.d("TOOL", "wifi状态 : " + wifiNetInfo.getState() + "   数据网络状态 : " + mobNetInfo.getState());
                if (mobNetInfo.getState() == NetworkInfo.State.CONNECTED) {
                    Log.d("TOOL", "正在使用数据网络连接");
                } else if (wifiNetInfo.getState() == NetworkInfo.State.CONNECTED) {
                    Log.d("TOOL", "正在使用wifi连接");
                }
            } else {
                Log.d("TOOL", "没有连接任何网络");
            }
        }
    }

}