The basics of holding a smartphone are "vertical holdings", which is designed so that the screen looks vertical.On the other hand, when the screen is long (horizontally), the sensor with a smartphone detects the state and the screen rotates 45 degrees horizontally.This feature is half -common to smartphones, regardless of Android or iPhone.
However, this automatic rotation function is often stressed.Everyone should have such an experience that when you lie down on the sofa and try to use a smartphone, you have rotated it at the timing you do not want to rotate.For this reason, the Android OS has provided a switch that can turn on/off automatically.
The rotation button that appears when the Android is changed horizontally is a new feature of Android 9 (PIE) prepared to assist the automatic rotation.Even if the automatic rotation is disabled, the screen rotation button is displayed on the navigation bar when the smartphone is horizontally held.
This rotation button is a manual rotation button.When the automatic rotation switch on the screen is turned on, it does not appear because it will be the same automatic rotation as before, but when the switch is turned off, it appears when the smartphone holds it vertically/horizontally.increase.If you leave it for a few seconds without tapping the rotation button, it will automatically disappear, so it will not be jammed.
In other words, it is a function that displays the rotating button without automatic rotation in situations where it should be automatically rotated and checks with the user, but it is a convenient function for simple.You should be able to realize that it is an application that often switches vertically/horizontally, such as video applications, map applications, and web browsers.
