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How to change fontFamily of TextView in Android
...ily in Android but I don't see any pre-defined fonts in Android. How do I select one of the pre-defined ones? I don't really need to define my own TypeFace but all I need is something different from what it shows right now.
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How can I use Autolayout to set constraints on my UIScrollview?
...ication.
Storyboard
In this example we will make a horizontal scroll view. Select the View Controller and then choose Freeform in the Size Inspector. Make the width 1,000 and the height 300. This just gives us room on the storyboard to add content that will scroll.
Add a Scroll View
Add a UIScrollV...
Can scrapy be used to scrape dynamic content from websites that are using AJAX?
...om scrapy.contrib.linkextractors.sgml import SgmlLinkExtractor
from scrapy.selector import HtmlXPathSelector
from scrapy.http import Request
from selenium import selenium
class SeleniumSpider(CrawlSpider):
name = "SeleniumSpider"
start_urls = ["http://www.domain.com"]
rules = (
...
How to create a unique index on a NULL column?
...rt this. I have SSMS 10.50.1617 and in the Index Properties dialog you can select the Filter page to edit the filter. e.g. "([Column1] IS NOT NULL)"
– Phil Haselden
Aug 9 '11 at 5:27
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How to wait for all goroutines to finish without using time.Sleep?
This code selects all xml files in the same folder, as the invoked executable and asynchronously applies processing to each result in the callback method (in the example below, just the name of the file is printed out).
...
When to use Preorder, Postorder, and Inorder Binary Search Tree Traversal strategies
... Pre-Order, In-order or Post-Order?
The traversal strategy the programmer selects depends on the specific needs of the algorithm being designed. The goal is speed, so pick the strategy that brings you the nodes you require the fastest.
If you know you need to explore the roots before inspecting ...
Can PostgreSQL index array columns?
... for this test...
SET enable_seqscan TO off;
EXPLAIN ANALYZE
SELECT * FROM "Test" WHERE "Column1" @> ARRAY[20];
Result:
Bitmap Heap Scan on "Test" (cost=4.26..8.27 rows=1 width=32) (actual time=0.014..0.015 rows=2 loops=1)
Recheck Cond: ("Column1" @> '{20}'::integer[])
-&...
Difference between a Message Broker and an ESB
... fail or fail temporarily with self healing based on your deployment model selected. With microservices based deployment or iPAAS, ESB's now have auto-scaling capabilities(horizontally or vertically) with features varying based on the vendor selected.
For a very high level capabilities that ESB pro...
R and version control for the solo data analyst
...sion control systems can do absolutely amazing things with compression and selective saving so this is pretty much a moot point.
3 What is a good strategy for getting started with version control for data analysis with R (e.g., examples, workflow ideas, software, links to guides)?
Keep files t...
Set the location in iPhone Simulator
...27.565370"> <name>MyOffice</name> </wpt> </gpx>
Select in Xcode at the Simulate area Add GPX File to Project...
Add created file from menu to project.
Now you can see your location in Simulate area:
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