js 监听 旋转

window.addEventListener('orientationchange', function() {
    switch (window.orientation) {
        case 0:
            console.log('正常方向');
            break;
        case 90:
            console.log('向左旋转90度');
            break;
        case -90:
            console.log('向右旋转90度');
            break;
        case 180:
            console.log('旋转180度');
            break;
    }
});

let initialOrientation = window.innerWidth > window.innerHeight ? 'landscape' : 'portrait';

window.addEventListener('resize', function() {
    let newOrientation = window.innerWidth > window.innerHeight ? 'landscape' : 'portrait';
    if (newOrientation !== initialOrientation) {
        console.log(`屏幕方向从${initialOrientation}变为${newOrientation}`);
        initialOrientation = newOrientation;
        // 这里可以执行旋转后的相关操作
    }
});