Android判断网路是否畅通加权限

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

//判断网路是否畅通加权限
if(NetWorkUtil.isNetAvailable(MainActivity.this)){//网络畅通
//开始请求数据
}else{
Toast.makeText(MainActivity.this, "目前没网请检查网络权限", 0).show();
}

NetWorkUtil

public class NetWorkUtil {
public static boolean isNetAvailable(Context context){
//获得网络管理器
ConnectivityManager connM =
(ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo netInfo = connM.getActiveNetworkInfo();//得到网络详情

if(netInfo == null || !netInfo.isAvailable())
return false;

return true;
}
}