On Mac, interactions may be impossible with UIAutomatorViewer.

If it is the case, do the following steps:

• Download swt here: https://www.eclipse.org/downloads/download.php?file=/eclipse/downloads/drops4/R-4.20-202106111600/swt-4.20-cocoa-macosx-x86_64.zip

• Extract the folder and open it

• Rename swt.jar file to swt2.jar

• Copy the file in the following folder: $HOME/Library/Android/sdk/tools/lib/x86_64

• Launch UIAutomatorViewer and resize the window

With some Mac, you also have to create a folder called aarch64 next to the folder called x86_64. Then, you have to copy the swt2.jar file into the new folder.