Question about the screen resolution of Android 11 devices.

Solar2D Android
#1

This is the screen of running the “Hello World” Samples Code on the “Redmi Note10 pro” device.

I don’t want the black spaces the “letterbox” has.
I changed the config.lua file.

-- scale = "letterbox",
scale = "adaptive",

_Screenshot_2021-04-10-21-34-29-707_com.solar2d.app.HelloWorld
_Screenshot_2021-04-10-21-34-29-707_com.solar2d.app.HelloWorld270×600 18.6 KB

I hate the space at the bottom, so I added the code below.

if system.getInfo( "platform" ) == "android" then
    native.setProperty("androidSystemUiVisibility", "immersiveSticky")
end

Below is the output. The image is stretched.

_Screenshot_2021-04-10-21-34-56-202_com.solar2d.app.HelloWorld
_Screenshot_2021-04-10-21-34-56-202_com.solar2d.app.HelloWorld270×600 18.8 KB

Is there any way to solve this problem?

Another interesting thing is that the image doesn’t stretch on other Galaxy android devices. (Android 11)

#2

I tried adding the code below, but still the image is stretched.

-- native.setProperty("androidSystemUiVisibility", "immersiveSticky")
native.setProperty("androidSystemUiVisibility", "immersive")

.

local function onResize( event )
	world.width = 250
	world.height = 250
end

Runtime:addEventListener( "resize", onResize )
#3

I might be wrong but I think you are looking at the wrong place. Look at the config.lua and the value of scale. This documentation might also help:

#4

Thanks agramonte!
I read the guide that you gave me.

Still I think it is a bug in some Android devices that the aspect ratio is ignored (like “zoomStretch”) due to hiding the bottom navigation bar.

Anyway, I added the code below to get a normal aspect ratio Earth image. (of course… the text “Hello, world!” still stretches up and down…)

-- Abstract: Hello World
-- Version: 2.0
-- Sample code is MIT licensed; see https://solar2d.com/LICENSE.txt
---------------------------------------------------------------------------------------
local world = display.newImageRect( "world.png", 250, 250 )
world.x = display.contentCenterX
world.y = display.contentCenterY - 30

local msgText = display.newText( "Hello, world!", world.x, world.y+160, native.systemFont, 32 )
msgText:setFillColor( 0.2, 0.6, 0.8 )

        --

local first_pixelHeight = display.pixelHeight -- 2047

if system.getInfo( "platform" ) == "android" then
    native.setProperty("androidSystemUiVisibility", "immersive")
end

local function onResize( event )
	local second_pixelHeight = display.pixelHeight -- 2400
	world.height = 250 * (first_pixelHeight / second_pixelHeight)
end
 
Runtime:addEventListener( "resize", onResize )
#5

I didn’t know much about “adaptive”.
In my game, I think it’s best to use “letterbox” and cover the “blank” area with a background image.