[SOLVED][iOS][Qt 5.2]QFile doesnt create new file
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Hi,
I got a problem i cannot create new file on iPad. There is the code:
@QFile tf("abc.txt");
tf.open(QIODevice::ReadWrite);
tf.write("TEST");
tf.close();
if(QFile::exists("abc.txt"))
qDebug()<<"abc.txt exists";
else
qDebug()<<"abc.txt doesnt exists";@I keep getting abc.txt doesnt exists in debug console.
I have no idea why, the code works on linux, mac and android, so why doesnt it work on iOS.Thanks
EDIT: I forgot to mention I alse get this: "QIODevice::write: device not open"
I believe application doesnt have permission to write on iPad but what should i do to set it?
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what does the following return?
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qDebug() << QFile("abc.txt").exists();
@ -
Hi, kolegs.
It doesn't work due to Apple's sandbox policy.
You're able to write files only to 'Documents' and 'Caches' directories, but not to application's directory.This version works as well:
@ QString fileName = "../Documents/abc.txt";
QFile tf(fileName);
tf.open(QIODevice::ReadWrite);
tf.write("TEST");
tf.close();
if(QFile::exists(fileName))
qDebug()<<"abc.txt exists";
else
qDebug()<<"abc.txt doesnt exists";@Here is the link where you can read more about this feature:
https://developer.apple.com/library/mac/documentation/Security/Conceptual/AppSandboxDesignGuide/AboutAppSandbox/AboutAppSandbox.html -
check this out http://qt-project.org/forums/viewthread/47051/
