How to Force Landscape Orientation in Your Web App?

Unlocking the Secret to Enforcing Landscape Orientation for Your Application

It's no secret that certain applications demand a specific orientation mode. If your app is one that's absolutely not designed for portrait mode, you may have hit a brick wall. The ability to force landscape orientation mode has long been a missing feature, but fear not!

Original Solution: Limited Detection and No Control

Traditionally, you could only detect the current orientation using CSS3 media queries or JavaScript events to trigger appropriate CSS styles. While this allowed you to react to orientation changes, the device's natural behavior still prevailed, meaning you couldn't enforce a specific orientation.

HTML5 Webapp Manifest to the Rescue

Finally, the HTML5 webapp manifest offers a solution. With the addition of a manifest.json file, you can now set the following properties:

• display: Controls UI mode (standalone, fullscreen, minimal-ui, or browser)
• orientation: Enforces landscape or portrait mode (landscape or portrait)

By including these lines in your manifest.json and linking it in your HTML file, you can finally force the landscape orientation for your application.

Implementation Details:

{
    "display": "fullscreen", /* Choose UI mode here */
    "orientation": "landscape"
}

<link rel="manifest" href="manifest.json">

Supported Browsers:

Currently, Chrome provides support for the webapp manifest's orientation locking feature. As we gather more information, we will update this article accordingly.

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