Upgrade of YouTube application on iOS. All users can play videos vertically.
in recent years, a large number of videos shot on mobile phones have sprung up on YouTube, which users previously wanted to watch either put up with the black edges on the left and right sides or click on the full screen to watch. To this end, Google has invited some users to test it since August this year, and today, in the upgrade of the iOS YouTube application, the vertical screen playback interface has finally been opened to all users.
However, in fact, a large number of "vertical screen" videos on YouTube currently add black bars to the edge of the video, which means that it is a horizontal video from a technical point of view. Then foreign media tested the existing vertical video and found that it was still played in horizontal mode. Fortunately, all the newly uploaded vertical videos can be played on vertical screens.