Default constraint layout. The controls inside are centered, you can use the guideline for reference
to draw the desired location
This layout has nothing on the rendering, that is, when it runs on the mobile phone, the Guideline has nothing.
The reason is because
There is nothing written in the draw method of the source code.
Two or three core attributes
direction
android:orientation="vertical"distance
app:layout_constraintGuide_begin="100dp"
By modifying to end, it is counted from the right or below
You can also use percentage
Very stylish.