学习android开发的小笔记(1)-------- 一个检查android网络状态的程序

获取Android网络状态的程序

    ConnectivityManager cm = (ConnectivityManager)    getSystemService(Context.CONNECTIVITY_SERVICE);        //检查Wifi的活动连接状态        NetworkInfo niWifi =     cm.getNetworkInfo(ConnectivityManager.TYPE_WIFI);    boolean isWifiAvail = niWifi.isAvailable();    boolean isWifiConn = niWifi.isConnected();     //检查移动网络的连接状态    NetworkInfo niMobile =     cm.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);    boolean isMobileAvail = niMobile.isAvailable();    boolean isMobileConn = niMobile.isConnected();

想要读取网络状态时，声明许可权限

<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>