qt iOS app 如何获取共享文件夹文件，如何使用document文档目录文件

最新推荐文章于 2024-02-22 16:52:55 发布

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最新推荐文章于 2024-02-22 16:52:55 发布

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分类专栏： qt 文章标签： qt for iOS qt document qt UIFileSharingEnab

本文链接：https://blog.youkuaiyun.com/zhh_panan/article/details/50087231

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本文介绍了如何在iOS平台上使用Qt获取应用程序的文档目录。由于Qt的传统方法未能直接提供有效的沙盒路径，文中提出了一种结合Objective-C和Qt C++的方法来解决此问题，并最终成功获取了正确的沙盒路径。

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how to get sharing document directory is something different with other qt platforms.

IOS app always use files only in app's sandbox. So we just need to find it's sandbox directory.

we may think following would work:

QString docPath;

    QDir dir;

    docPath=dir.currentPath();

however in qt 5.5 IOS, it return only root directory "/",

then we use another way:

docPath=QCoreApplication::applicationDirPath();

result is "/private/var/mobile/Containers/Bundle/Application/D31978DF-1A05-4AB9-9C36-18EA2B9E5294/testXXX.app",

is that the real sandbox directory? The answer is still no, because we can not show any files sync-in iPhone to testXXX app by iTunes.

(in qt .pro file, we add lines

QMAKE_INFO_PLIST += aaa.plist

in aaa.plist we add "UIFileSharingEnabled true" to enable file sharing with iTunes.)

We have no patience to find other qt traditional way to solve this problem. We use mix IOS obj-c and qt c++ as follows:

QString iOSObj::getDocDir(void)
{
iOSObj::g_iOSObj = this;
//get Documents path
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask,YES);
NSString *path=[paths objectAtIndex:0];
NSLog(@"path:%@",path);
QString temp = QString::fromNSString(path);
return temp;
}

Finally, the result is

“/var/mobile/Containers/Data/Application/BB26B5E6-3340-4601-A81B-DE5362B1C938/Documents”