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Missing explicit orientation

Missing explicit orientation

The default orientation of a LinearLayout is horizontal. It's pretty easy to believe that the layout is vertical, add multiple children to it, and wonder why only the first child is visible (when the subsequent children are off screen to the right). This lint rule helps pinpoint this issue by warning whenever a LinearLayout is used with an implicit orientation and multiple children.

It also checks for empty LinearLayouts without an orientation attribute that also defines an id attribute. This catches the scenarios where children will be added to the LinearLayout dynamically.

Issue id: Orientation

Inspection Details

Available in:

IntelliJ IDEA 2023.3, Qodana for Android 2023.3, Qodana for JVM 2023.3


Android, 2022.3.1 Beta 2

Last modified: 13 July 2023