File Reading works in Corona Simulator, does not in XCode Simulator

Solar2D General Questions/Discussion
#1

I have these functions:

local function loadHighScoreData()  
 local fileContent ="";  
 local path = system.pathForFile("highScoreData.json", system.DocumentsDirectory);  
 local file = io.open(path, "r");  
 fileContent = file:read("\*a");  
 io.close(file);  
 return fileContent;  
end  
  
local function saveHighScoreData (data)  
 local path = system.pathForFile("highScoreData.json", system.DocumentsDirectory);  
 local file = io.open(path, "w+");  
  
 local fileContent = file:read("\*a");  
 local newData = data;  
 file:write(newData);  
 io.close(file);  
end

Which can be invoked this way:

[code]local loadHighScoreData = loadHighScoreData();

saveHighScoreData(’{“scores”:{1:[“John”,60],2:[“Jude”,60],3:[“Max”,60],4:[“Kyle”,60],5:[“Smith”,60],6:[“Mark”,50],7:[“Luke”,40],8:[“Anne”,30],9:[“Bruce”,20],10:[“Carl”,0]}}’);
[/code]
I have tested these functions out on the Corona Simulator and they have been working perfectly. When I tried building the app for the Xcode Simulator, the scene where those functions are used suddenly break down.

I have isolated the case and found that the line in the loadHighScoreData() which causes this is:

fileContent = file:read("\*a");

What can I do to make it work on the Xcode Simulator?

Any help would be greatly appreciated.

Regards,

John [import]uid: 177058 topic_id: 31175 reply_id: 331175[/import]

#2

Hi John,

I just ran this code;

[lua]local function loadHighScoreData()
local fileContent ="";
local path = system.pathForFile(“highScoreData.json”, system.DocumentsDirectory);
local file = io.open(path, “r”);
fileContent = file:read("*a");
io.close(file);
print (fileContent)
local testText = display.newText(fileContent, 10, 10, native.systemFont, 12)
return fileContent;
end

local function saveHighScoreData (data)
local path = system.pathForFile(“highScoreData.json”, system.DocumentsDirectory);
local file = io.open(path, “w+”);

local fileContent = file:read("*a");
local newData = data;
file:write(newData);
io.close(file);
end

saveHighScoreData(’{“scores”:{1:[“John”,60],2:[“Jude”,60],3:[“Max”,60],4:[“Kyle”,60],5:[“Smith”,60],6:[“Mark”,50],7:[“Luke”,40],8:[“Anne”,30],9:[“Bruce”,20],10:[“Carl”,0]}}’);

local loadHighScoreData = loadHighScoreData();[/lua]

And that worked fine - does it work for you if all of this is in one scene, or still no? [import]uid: 52491 topic_id: 31175 reply_id: 124771[/import]

#3

Hi John,

I just ran this code;

[lua]local function loadHighScoreData()
local fileContent ="";
local path = system.pathForFile(“highScoreData.json”, system.DocumentsDirectory);
local file = io.open(path, “r”);
fileContent = file:read("*a");
io.close(file);
print (fileContent)
local testText = display.newText(fileContent, 10, 10, native.systemFont, 12)
return fileContent;
end

local function saveHighScoreData (data)
local path = system.pathForFile(“highScoreData.json”, system.DocumentsDirectory);
local file = io.open(path, “w+”);

local fileContent = file:read("*a");
local newData = data;
file:write(newData);
io.close(file);
end

saveHighScoreData(’{“scores”:{1:[“John”,60],2:[“Jude”,60],3:[“Max”,60],4:[“Kyle”,60],5:[“Smith”,60],6:[“Mark”,50],7:[“Luke”,40],8:[“Anne”,30],9:[“Bruce”,20],10:[“Carl”,0]}}’);

local loadHighScoreData = loadHighScoreData();[/lua]

And that worked fine - does it work for you if all of this is in one scene, or still no? [import]uid: 52491 topic_id: 31175 reply_id: 124771[/import]