Android监听手机网络变化

手机网络状态发生变化会发送广播，利用广播接收者，监听手机网络变化

效果图

注册广播接收者

     
     
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广播接收者

package ……;import ……;/** * Created by kongqw on 2015/11/23. */public class NetworkBroadcastReceiver extends BroadcastReceiver {
         @Override    public void onReceive(Context context, Intent intent) {        try {            ConnectivityManager manager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);            NetworkInfo mobileInfo = manager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);            NetworkInfo wifiInfo = manager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);            //如果无网络连接activeInfo为null            NetworkInfo activeInfo = manager.getActiveNetworkInfo();            if (wifiInfo.isConnected()) {                // wifi 网络                Log.i("Network", "wifi 网络");            } else if (mobileInfo.isConnected()) {                // 手机网络                Log.i("Network", "手机网络");            } else if (null == activeInfo) {                // 没有网络                Log.i("Network", "没有网络");            }        } catch (Exception e) {            e.printStackTrace();        }    }}