StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

PO
text
Body
copied!<p>It is possible to read and write files on the SD-card using LFS and IO APIs on Android.</p> <p>To access the phones inbuild memory, add the android permission "android.permission.WRITE_EXTERNAL_STORAGE" and set the path to "/". From there you can access the memorycard.</p> <p>Example:</p> <pre><code>local lfs = require("lfs") local path = "/" local pathType = "" -- Check to see if path exists if path and lfs.attributes( path ) then pathType = lfs.attributes( path ).mode end -- Check if path is a directory if pathType == "directory" then for file in lfs.dir( path ) do if "." ~= file and ".." ~= file then -- Get the file attributes. local fileAtr = lfs.attributes( path .. "/" .. file ) -- Print path, name and type of file (Directory or file) print(path,file,fileAtr.mode) end end end </code></pre> <p>This will print the path, filename and type of file in the terminal window. (Have only tested on Mac and Android device.)</p> <p>I have found a way to display an image outside the sandbox on Android and on the simulator. (PC not tested) </p> <p>Example:</p> <pre><code>local lfs = require("lfs") --------------------------- Change this path --------------------------- local path = "path/to/the/image.jpg" -- Change this path to the path of an image on your computer ------------------------------------------------------------------------ local tmpPath = system.pathForFile("tmp.jpg",system.TemporaryDirectory) -- Destination path to the temporary image --------------------------- Read ---------------------------- local file, reason = io.open( path, "r" ) -- Open the image in read mode local contents if file then contents = file:read( "*a" ) -- Read contents io.close( file ) -- Close the file (Important!) else print("Invalid path") return end --------------------------- Write ---------------------------- local file = io.open( tmpPath, "w" ) -- Open the destination path in write mode if file then file:write(contents) -- Writes the contents to a file io.close(file) -- Close the file (Important!) else print("Error") return end ---------------------- Open and remove ----------------------- local img = display.newImage("tmp.jpg",system.TemporaryDirectory) -- Display the image from the temporary directory os.remove(tmpPath) -- Removes the image, so that we can load another image. </code></pre>

Querying!

Guidance

An individual column

Larger individual text columns get their own page to allow for proper reading.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload