Godot Android Dual Screen Plugin

Key Features:

• Works on any Android device/handheld that supports a second screen (including non-native setups like RP5).
• Both viewports must be placed in a SubViewportContainer. The plugin manually injects touch events into the second screen via _input, while the main screen uses the engine's native input.
• You can use both screens at the same time. Dragging one finger on the main screen and another on the second screen works perfectly without conflicts.
• You can swap the primary and secondary screens on the fly (super useful for the RP5). The plugin automatically re-routes the inputs after the swap so the second screen always "knows" it's the second screen.
• The second screen never grabs focus. Your analog sticks and buttons will always work on the main game logic regardless of touch input.
• Resolution management, resizing, and Vulkan render synchronization are all handled under the hood.