js 操作全屏切换的方法
launchFullScreen() {
const isFullScreen = document.fullscreenElement || document.mozFullScreenElement || document.webkitFullscreenElement
if (!isFullScreen) {
if (document.body.requestFullscreen) {
document.body.requestFullscreen()
} else if (document.body.mozRequestFullScreen) {
document.body.mozRequestFullScreen()
} else if (document.body.webkitRequestFullscreen) {
document.body.webkitRequestFullscreen()
} else if (document.body.msRequestFullscreen) {
document.body.msRequestFullscreen()
}
} else {
if (document.exitFullscreen) {
document.exitFullscreen()
} else if (document.mozCancelFullScreen) {
document.mozCancelFullScreen()
} else if (document.webkitExitFullscreen) {
document.webkitExitFullscreen()
}
}
},