NetWorkUtil

import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;


public class NetWorkUtil {
    public static boolean isConn(Context context){
        boolean bisConnFlag=false;
        ConnectivityManager manger = (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo network = manger.getActiveNetworkInfo();
        if(network!=null){
            bisConnFlag=manger.getActiveNetworkInfo().isAvailable();
        }
        return bisConnFlag;
    }


    public static void showNoNetWorkDlg(final Context context) {
        AlertDialog.Builder builder = new AlertDialog.Builder(context);
        builder.setIcon(R.mipmap.ic_launcher)
                .setTitle(R.string.app_name)
                .setMessage("当前无网络").setPositiveButton("设置", new DialogInterface.OnClickListener() {

            @Override
            public void onClick(DialogInterface dialog, int which) {

                Intent intent = null;

                if(android.os.Build.VERSION.SDK_INT > 10){
                    intent = new Intent(android.provider.Settings.ACTION_WIRELESS_SETTINGS);
                }else{
                    intent = new Intent();
                    intent.setClassName("com.android.settings", "com.android.settings.WirelessSettings");
                }
                context.startActivity(intent);

            }
        }).setNegativeButton("知道了", null).show();
    }
}