如何使精灵适合多个设备的整个屏幕

Question

我使用 corona 已经有一段时间了，我想知道如何制作精灵（使用纹理打包器）并将其设置为我的应用程序的背景。我还希望它能够适应尽可能多的设备，而不会裁剪掉任何精灵内容。简而言之，我希望 sprite 成为适合整个屏幕的背景，而不会丢失任何 sprite 的内容

Answer 1

希望对您有所帮助：

local _W = display.actualContentWidth
local _H = display.actualContentHeight

local bg = display.newImage( 'bg.jpg' )
bg.x, bg.y = display.contentCenterX, display.contentCenterY


local mode = 'inside'

-- the image will fill the device width/height exactly
if mode == 'stretch' then
    bg.width, bg.height = _W, _H

-- the image will be scaled proportionally to fit inside the device width/height
elseif mode == 'inside' then
    local scale = math.min( _W / bg.width, _H / bg.height )
    bg:scale(scale, scale)

-- the image will be scaled proportionally to completely fill the area, 
-- allowing portions of it to exceed the bounds defined by device width/height
elseif mode == 'outside' then
    local scale = math.max( _W / bg.width, _H / bg.height )
    bg:scale(scale, scale)
end

如何使精灵适合多个设备的整个屏幕

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