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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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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