The best way to learn about detecting and responding to devices and their varying attributes (screens, orientations, and so on) is to make a simple app:
Create a new Basic Activity project and call it
Device Detection
. Leave all the other settings at their defaults.Open the
activity_main.xml
file in the design tab and delete the default Hello world!TextView
.Drag a Button onto the top of the screen and set its onClick property to
detectDevice
. We will code this method in a minute.Drag two TextView widgets onto the layout, one below the other, and set their id properties to
txtOrientation
andtxtResolution
respectively.Check you have a layout that looks something like the following screenshot:
Click the Infer Constraints button to secure the positions of the UI elements.
Now we...