收听网络状态广播

package com.jingle.networkbroadcast.receiver;

import com.jingle.networkbroadcast.util.LogUtil;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.Bundle;

public class NetworkStateReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        // TODO Auto-generated method stub
        Bundle bundle = intent.getExtras();
        String content;
        //打印传进来的bundle信息
        for (String key : bundle.keySet()) {
            if ((content = bundle.getString(key)) != null) {
                LogUtil.getDebugLog("key: " + key + " content: " + content);
                LogUtil.getDevider();
            }
        }
        LogUtil.getInfoLog("network state changed");
        if (!isNetworkAvailable(context)) {
            LogUtil.getInfoLog("网络失去连接");
        }

    }

    public static boolean isNetworkAvailable(Context context) {
        ConnectivityManager connMng = (ConnectivityManager) context
                .getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo infos[] = connMng.getAllNetworkInfo();
        if (infos != null) {
            for (NetworkInfo info : infos) {
                //只要networkinfo中有状态为connected就返回true,否则返回false
                if (info.getState() == NetworkInfo.State.CONNECTED) {
                    return true;
                }
            }
        }
        return false;
    }

}