How to achieve automatic horizontal and vertical screen on mobile devices?

To achieve automatic horizontal and vertical screen adaptation on mobile devices, developers typically use responsive design techniques and device orientation detection. Here's how it works and an example:

Explanation:

1. Responsive Design: Use flexible layouts (e.g., CSS Flexbox or Grid) and relative units (e.g., percentages, vw, vh) to ensure the UI adjusts to different screen sizes.
2. Orientation Detection: Detect device orientation changes (portrait or landscape) using JavaScript or CSS media queries, then adjust the layout dynamically.

Example:

HTML:

<div class="container">
  <div class="content">Content</div>
</div>

CSS:

.container {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  width: 100vw;
}

.content {
  font-size: 2rem;
}

/* Adjust for landscape */
@media (orientation: landscape) {
  .content {
    font-size: 1.5rem;
  }
}

JavaScript (Optional for Dynamic Adjustments):

window.addEventListener('orientationchange', () => {
  if (window.orientation === 90 || window.orientation === -90) {
    console.log("Landscape mode");
    // Add custom logic for landscape
  } else {
    console.log("Portrait mode");
    // Add custom logic for portrait
  }
});

Cloud Recommendation:

For mobile app development, Tencent Cloud's Mobile Application Acceleration (MAA) service can optimize app performance across devices, ensuring smooth transitions between orientations. Additionally, Tencent Cloud's Serverless Cloud Function (SCF) can handle dynamic backend logic for orientation-based adaptations without managing servers.

For cross-platform development, tools like Tencent Cloud's WeChat Mini Program Cloud Development provide built-in support for responsive layouts and device orientation detection.