omerasif57

bottomNavigationBar: Padding(
        padding: const EdgeInsets.all(8.0),
        child: Container(
          decoration: BoxDecoration(boxShadow: [
            BoxShadow(
              blurRadius: 4.0,
              offset: Offset(0.0, 0.0),
              color: Colors.grey,
            ),
          ], borderRadius: BorderRadius.circular(36.0)),

omerasif57

Future<Null> _downloadNetworkImage() async {
    Dio dio = Dio();
    try {
      var dir = await getTemporaryDirectory();
      print(dir);

      Scaffold.of(context).showSnackBar(
          SnackBar(content: Text("Downloading image. Please wait...")));
      await dio.download(url, '${dir.path}/image.jpeg',
          onReceiveProgress: (rec, total) {

omerasif57

from multiprocessing.pool import ThreadPool
from time import time

import wget

urlp = "https://picsum.photos/id/{}/720/1200"

urls = [(urlp.format(x), "{}.jpg".format(x)) for x in range(10)]

omerasif57

When QuerySets are evaluated

You can concatenate as many filters as you like to a QuerySet, and you will not hit the database until the QuerySet is evaluated. QuerySets are only evaluated in the following cases:

    The first time you iterate over them
    When you slice them, for instance, Post.objects.all()[:3]
    When you pickle or cache them
    When you call repr() or len() on them
    When you explicitly call list() on them