How To Set iOS App Icon In Xcode Project
When you create an iOS app and run it in a simulator, you may find that the default app icon on the screen is a grid picture, this is not beautiful. This article will tell you two methods about how to change the default iOS app icon to your desired icon both in a simulator …
How To Use Python Scrapy To Crawl Javascript Dynamically Loaded Pagination Web Page
Most websites use the URL link to implement pagination, but some website does not have such pagination links on their web page, they use javascript to load the next page content dynamically when a user scrolls the web page. For example the website https://unsplash.com/. It is an image repository website, it will show next page …
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Node JS Get User Input From Command Line Prompt Example
If you are a beginner to Node.js, you must want to know which function can read user input from the command line. Just like the input() function in Python. This example will show you how to get user input data from the command line in Node.js application. One way is to use Node.js build-in process.stdin …
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How To Get Redirection URL In Python Crawler
When you use Python to write a web crawler, you may encounter the situation that the web page is redirected when you crawl the page. When you request a web page URL, it redirects to another web page URL, the URL address change will result in unable to get the web page content. This article …
How To Create, Start, Stop Android Background Service
Android background service is an android component that runs in the background. There is no GUI for users to interact with the android background service object directly, it is usually started in android activity and runs in the same thread of the activity. When users quit the android-activity, the android background service will also exit …
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How To Create Scrapy Project To Crawl Web Page Example
Scrapy is a Python library that can be used to crawl web pages and extract the web page elements by XPath or CSS selector in python code. This article will tell you how to create a Scrapy project and how to implement the Scrapy related classes in the project to crawl and extract a job …
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Android Foreground Service Example
Android foreground service is an android service object. It always runs in the foreground, this can avoid service objects being recycled by the android system when android os does not have enough resources. Android foreground service can interact with users through notification. It is usually used in a music player, file downloader, etc which user …
Python 3 Matplotlib Draw Point/Line Example
Python matplotlib module is used to draw graphical charts. This article will tell you how to use matplotlib to draw point and line. But before you can use it, you should make sure it is installed. You can open a terminal and input the below command to check, if there is no error message print …
