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This article mainly introduces "how to achieve HTML5 offline application development". In daily operation, I believe many people have doubts about how to achieve HTML5 offline application development. The editor consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful to answer the doubts of "how to achieve HTML5 offline application development". Next, please follow the editor to study!

Step 1: create a manifest file and specify a list of cache files

You can first trust a file with a suffix in txt text format, and the first line must be written to CACHE MANIFEST

The second line optionally writes a comment # version 1.0, which starts with #, which means the version number

The third line begins with a file path relative to the current file directory on each line, such as:

Static/img/logo.png

Static/css/style.css

A basic manifest file is ready. Change the suffix of this file to .manifest.

Step 2: specify the manifest property of the document in the html file as the path to the cache.mnifest file

After the manifest attribute is added, the page is loaded, and the files in the cache configuration file will be cached offline, and will not be read from the server when you brush the letter again.

Step 3: swipe the mail cache through the API interface

Use JS to obtain the offline cache object through window.applicationCache. Call the update method: window.applicationCache.update () to call the current cache file download. After the download is completed, the updateready event of the offline cache object will be triggered. Execute the swapCache method through the binding event to clear the cache: window.applicationCache.swapCache (), which will not cause the previously loaded resources to be suddenly re-loaded. It's just that the resource that sends out the request page after that is the most reliable.

The offline application of HTML5 can be realized through the above three simple steps.

At this point, the study on "how to implement HTML5 offline application development" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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