launch in portrait orientation
By default, launch in portrait orientation. If you intend your application to be used only in landscape orientation, launch in landscape regardless of the current device orientation. Allow users to rotate the device to landscape orientation if necessary.
基于1个网页-相关网页
launch in portrait orientation
纵向启动
以上为机器翻译结果，长、整句建议使用 人工翻译 。