loadRemoteImage()

dsanjit9 · November 10, 2014, 6:21pm

Just noticed that it all works fine for “display.loadRemoteImage(“http://upload.wikimedia.org/wikipedia/commons/6/6a/Tricoloring.png”, “GET” …” .

And fails for display.loadRemoteImage(“https://graph.facebook.com/620112803/picture”, “GET”,… .

So is it a https vs http problem ???

And when it fails there are no network errors (event.isError is false) and the image has zero dimensions…

Sanjit

rob · November 11, 2014, 1:43am

If that’s all the log then it looks like your event handler isn’t getting called at all. Can you confirm all your variables like “filename”? What is the “root” variable?

Now one thing I noticed is that the first URL (the one you want to use) has a redirect going on. The URL I ended up isn’t the same as the one you entered.

dsanjit9 · November 11, 2014, 2:07am

My event handler is being called but the image is of zero size. Maybe indirection is causing it to fail. But it works in the simulator and all variables are correct !
The root is the group I wanted to add it to but for testing am adding it to sceneGroup or self.view.

dsanjit9 · November 11, 2014, 2:08am

Also this is an extract of the complete log.

rob · November 11, 2014, 2:54am

The log didn’t make it.

dsanjit9 · November 11, 2014, 7:28am

Hi Rob

The network errors in the previous log were not from Corona… so please ignore… no idea where they came from.

Here is what I did now: I used the FB SDK to retrieve the actual URL of the user’s picture. This is an absolute url and not a redirect. I then fed it to my code. Again all works well in the Simulator but on the device the call seems to succeed but the image is of size zero.

***************************************************************

local ww = h*0.85

local hh = w

local xx = margin*2 + button_size + ww/2 +padding/2

local yy = y;

local filename = “download” … tostring(math.random()) … “.jpg”

url = “[https://m.ak.fbcdn.net/profile.ak/hprofile-ak-xpf1/v/t1.0-1/c0.13.50.50/p50x50/1898067_10152047616577804_876002957_n.jpg?oh=577b4f540607eb16aaf9e37e6227b0f3&oe=54EFD211&__gda__=1424394365_30c2dab39230109502f30c76c53cfb6d”](https://m.ak.fbcdn.net/profile.ak/hprofile-ak-xpf1/v/t1.0-1/c0.13.50.50/p50x50/1898067_10152047616577804_876002957_n.jpg?oh=577b4f540607eb16aaf9e37e6227b0f3&oe=54EFD211& gda =1424394365_30c2dab39230109502f30c76c53cfb6d)

display.loadRemoteImage(url, “GET”,

function(event)

if ( event.isError ) then

print(“Remote image error”)

else

print(“Remote image ok”)

print(“RIMGG::”, event.target.contentWidth, event.target.contentHeight)

local pic = event.target

--pic.alpha = 0

--transition.to( pic, { alpha = 1 } )

fitImage(pic, ww, hh)

pic.x = xx

pic.y = yy

sceneGroup:insert(pic)

pic:toFront()

end

end,

params,

filename,

system.TemporaryDirectory,

xx,yy

)

***************************************************************

Now there are NO log entries indicating some network error. Just my two entries that say

“Remote image ok”

and

RIMGG:: 0 0

On the simulator it is

RIMGG:: 50 50

The only thing I can suspect is the “https” url. All “http” based urls work on simulator and device.

Or is it an Android specific thing where the temp file is not writable to the TemporaryDirectory ?

Am I missing something ??

Thx

Sanjit

dsanjit9 · November 11, 2014, 10:30am

Here is another test I did. Basically I wrote a simplified file downloader and displayed the image. I also use the lfs to look at the System.DocumentsDirectory to see if the file is indeed downloaded and is of the right size and the log output says it is. But the display.newImage just doesnt work !

Here is the simplified function:

*************************************************************************************************************************************

function test_net(root)

local function networkListener( event )

print("NET RESPONSE = ", json.encode(event, {indent=true}))

if ( event.isError ) then

print( “NETWORK:: Network error - download failed” )

elseif ( event.phase == “began” ) then

print( “NETWORK:: Progress Phase: began” )

elseif ( event.phase == “ended” ) then

--local filename = system.pathForFile(event.response.filename, system.DocumentsDirectory,0,0 )

local filename = event.response.filename

print( “NETWORK:: Displaying response image file = " , filename, " basedir=”, event.response.baseDirectory)

--myImage = display.newImage( filename, event.response.baseDirectory, 60, 40 )

--myImage = display.newImage(filename, system.DocumentsDirectory, 50,50 )

myImage = display.newImage(“helloCopy2.txt” , system.DocumentsDirectory)

print(myImage.contentWidth)

--myImage.alpha = 0

--transition.to( myImage, { alpha=1.0 } )

root:insert(myImage)

myImage:toFront()

local doc_path = system.pathForFile( “”, system.DocumentsDirectory )

local k=1;

for file in lfs.dir(doc_path) do

--file is the current file or directory name

local attr = lfs.attributes(system.pathForFile(file, system.DocumentsDirectory ))

print(k, "Found file: " … file, " ", json.encode(attr) )

k = k + 1

end

local params = {}

headers = {

[“User-Agent”] = “Mozilla/5.0 (Windows NT 6.1; WOW64; rv:28.0) Gecko/20100101 Firefox/28.0”,

[“Content-Type”] = “image/jpg”,

[“accept”] = “*/*”,

[“accept-charset”] = “*”,

[“Accept-Language”]= “en-US,en;q=0.5”,

[“Accept-Encoding”] = “gzip, deflate”,

}

params.progress = true

params.headers = headers

network.download(

– THE FIRST URL WORKS ALWAYS BUT THE SECOND DOES NOT WORK ON THE DEVICE !!

--"http://docs.coronalabs.com/images/simulator/image-mask-base2.png",

“[https://m.ak.fbcdn.net/profile.ak/hprofile-ak-xpf1/v/t1.0-1/c0.13.50.50/p50x50/1898067_10152047616577804_876002957_n.jpg?oh=577b4f540607eb16aaf9e37e6227b0f3&oe=54EFD211&__gda__=1424394365_30c2dab39230109502f30c76c53cfb6d”,](https://m.ak.fbcdn.net/profile.ak/hprofile-ak-xpf1/v/t1.0-1/c0.13.50.50/p50x50/1898067_10152047616577804_876002957_n.jpg?oh=577b4f540607eb16aaf9e37e6227b0f3&oe=54EFD211& gda =1424394365_30c2dab39230109502f30c76c53cfb6d)

“GET”,

networkListener,

params,

“helloCopy2.txt”,

system.DocumentsDirectory

)

end

******************************************************************************************************************************************************

And here is the dump

11-11 15:40:58.114: I/Corona(13803): NET RESPONSE = {

11-11 15:40:58.114: I/Corona(13803): “responseHeaders”:{

11-11 15:40:58.114: I/Corona(13803): “Access-Control-Allow-Origin”:"*",

11-11 15:40:58.114: I/Corona(13803): “Content-Length”:“1384”,

11-11 15:40:58.114: I/Corona(13803): “X-Android-Response-Source”:“NETWORK 200”,

11-11 15:40:58.114: I/Corona(13803): “Date”:“Tue, 11 Nov 2014 10:10:59 GMT”,

11-11 15:40:58.114: I/Corona(13803): “X-Android-Sent-Millis”:“1415700657608”,

11-11 15:40:58.114: I/Corona(13803): “Timing-Allow-Origin”:"*",

11-11 15:40:58.114: I/Corona(13803): “Expires”:“Tue, 25 Nov 2014 10:10:59 GMT”,

11-11 15:40:58.114: I/Corona(13803): “X-Android-Selected-Transport”:“http/1.1”,

11-11 15:40:58.114: I/Corona(13803): “Cache-Control”:“no-transform, max-age=1209600”,

11-11 15:40:58.114: I/Corona(13803): “Last-Modified”:“Tue, 25 Feb 2014 19:34:28 GMT”,

11-11 15:40:58.114: I/Corona(13803): “X-Android-Received-Millis”:“1415700658111”,

11-11 15:40:58.114: I/Corona(13803): “Content-Type”:“image/jpeg”,

11-11 15:40:58.114: I/Corona(13803): “HTTP-STATUS-LINE”:“HTTP/1.1 200 OK”,

11-11 15:40:58.114: I/Corona(13803): “Connection”:“keep-alive”

11-11 15:40:58.114: I/Corona(13803): },

11-11 15:40:58.114: I/Corona(13803): “phase”:“began”,

11-11 15:40:58.114: I/Corona(13803): “bytesEstimated”:1384,

11-11 15:40:58.114: I/Corona(13803): “name”:“networkRequest”,

11-11 15:40:58.114: I/Corona(13803): “bytesTransferred”:0,

11-11 15:40:58.114: I/Corona(13803): “status”:200,

11-11 15:40:58.114: I/Corona(13803): “url”:"[https://m.ak.fbcdn.net/profile.ak/hprofile-ak-xpf1/v/t1.0-1/c0.13.50.50/p50x50/1898067_10152047616577804_876002957_n.jpg?oh=577b4f540607eb16aaf9e37e6227b0f3&oe=54EFD211&__gda__=1424394365_30c2dab39230109502f30c76c53cfb6d",](https://m.ak.fbcdn.net/profile.ak/hprofile-ak-xpf1/v/t1.0-1/c0.13.50.50/p50x50/1898067_10152047616577804_876002957_n.jpg?oh=577b4f540607eb16aaf9e37e6227b0f3&oe=54EFD211& gda =1424394365_30c2dab39230109502f30c76c53cfb6d)

11-11 15:40:58.114: I/Corona(13803): “isError”:false,

11-11 15:40:58.114: I/Corona(13803): “requestId”:"<type ‘userdata’ is not supported by JSON.>"

11-11 15:40:58.114: I/Corona(13803): }

11-11 15:40:58.114: I/Corona(13803): NETWORK:: Progress Phase: began