deviceOrientation/index.html at main · saigorantla/deviceOrientation · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Device Orientation Demo</title>
    <style>
        /* CSS for styling */
        body {
            margin: 0;
            padding: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            height: 100vh;
        }

        #landscape-content {
            display: none;
            text-align: center;
            color: red;
        }
    </style>
</head>
<body>
    <!-- Portrait content -->
    <h1 id="portrait-content">Welcome to Portrait Mode we support this</h1>

    <!-- Landscape content -->
    <h2 id="landscape-content">This orientation is not supported. Please switch to Portrait mode.</h2>

    <script>
        // Function to check and respond to screen orientation changes
        function handleOrientationChange(mq) {
            if (mq.matches) {
                // Portrait mode
                document.getElementById('portrait-content').style.display = 'block';
                document.getElementById('landscape-content').style.display = 'none';
            } else {
                // Landscape mode
                document.getElementById('portrait-content').style.display = 'none';
                document.getElementById('landscape-content').style.display = 'block';
            }
        }

        // Create a MediaQueryList object to monitor screen orientation
        const mq = window.matchMedia("(orientation: portrait)");

        // Initial check and response to screen orientation
        handleOrientationChange(mq);

        // Add an event listener to respond to orientation changes
        mq.addListener(handleOrientationChange);
    </script>
</body>
</html>