[Interest] iOS didFinishLaunchingWithOptions and such
Edward Sutton
edward.sutton at subsite.com
Mon Nov 16 14:25:52 CET 2015
> On Nov 14, 2015, at 1:37 PM, Robert Iakobashvili <coroberti at gmail.com> wrote:
>
> Gentlemen,
> For iOS works general cross-platform Qt url handling mechanism.
>
> //
> // Register for: iOS "Open In" file sharing and for our special file extensions
> //
> QDesktopServices::setUrlHandler("file", this,
> "handle_shared_ios_file_and_app_ext_we_are_registed_for");
>
> Existing Qt iOS delegate calls all URL-handling.
Thanks Robert!
-Ed
>
> Take care.
>
> Regards,
> Robert
>
>
> On Sat, Nov 14, 2015 at 3:09 PM, maitai <maitai at virtual-winds.org> wrote:
>> I finally fixed my problem by running app->exec() much sooner in main.cpp
>> (using a QTimer::singleShot(0, ...) to finished my initialization). It seems
>> that the fact that exec() and eventloop was not started soon enough
>> conflicted somehow with openUrl(), while in a normal situation that was not
>> a problem.
>>
>> Thanks again Edward for your help, that was very helpful.
>>
>> Philippe Lelong
>>
>>
>>
>>
>>
>> Le 13-11-2015 20:17, maitai a écrit :
>>
>> Ok then, I need to review all that it's clear.
>>
>> Thank you a thousand times for your input, it helps a lot to know that it's
>> something wrong with my own code.
>>
>> I'll post back when fixed
>>
>>
>>
>>
>>
>> Le 13-11-2015 20:10, Edward Sutton a écrit :
>>
>>
>> On Nov 13, 2015, at 1:01 PM, maitai <maitai at virtual-winds.org> wrote:
>>
>>> And just to make sure I understand well, if you press your app icon "copy
>>> to MyApp" your app launches and all is fine? If this is the case then the
>>> problem must be on my side obviously
>>
>> Yes. My Qt 5.5 widget app launches splash screen, then app opens the data
>> file displaying the data inside the app.
>>
>> I just powered-off and repeated test. App launched just fine.
>>
>> iPhone 5c, iOS 9.1.
>>
>> Built on Xcode 7.1.1 on OS X 10.10.5
>>
>> -Ed
>>
>>
>>
>>
>>
>> Le 13-11-2015 19:56, Edward Sutton a écrit :
>>
>>
>>
>> On Nov 13, 2015, at 12:50 PM, maitai <maitai at virtual-winds.org> wrote:
>>
>> Thanks Edward for your fast answer.
>>
>>> That is working also if your app is not in the background (i.e not
>>> started)?
>>
>> Yes. Since Qt 5.4 and currently using Qt 5.5.1
>>
>> I just closed my app to make sure.
>>
>> Then I went to iOS mail and opened an email attachment of a file with a
>> *.TSR file extension associated with my application. The sharing thing
>> opens. One of the options displayed my app's icon with text "Copy yo MyApp"
>>
>> -Ed
>>
>>
>>
>>
>>
>> Le 13-11-2015 19:42, Edward Sutton a écrit :
>>
>> I am using a pure Qt 5.5.1 iOS widgets app. Disclaimer: This solution works
>> but may not be the best solution. Recommendations for a cleaner approach
>> are welcome.
>>
>> Using Qt 5.5.1 I added myApplicationDelegate.mm that posts an fileOpenEvent.
>> It would be nice if this was built into Qt. See below File:
>> myApplicationDelegate.mm.
>>
>> Then I subclass QApplication to include to add a member variable for my
>> QMainWindowto watch for QEvent::FileOpen and call
>>
>>
>>
>> /// Looks for QFileOpenEvent to implement app file open from
>>
>> /// other apps, for example, Finder on OS X, or Apple Mail on iOS and OS X.
>>
>> ///
>>
>> ///
>>
>> /// \remarks Could this work on Android too?
>>
>> ///
>>
>> /// See file: myApplicationDelegate.mm
>>
>> /// \see myApplicationDelegate.mm.mm
>>
>> ///
>>
>> bool TcmwApplication::event(QEvent* event)
>>
>> {
>>
>> // iOS receives ApplicationDeactivate, ApllicationStateChange, when Home
>> is pressed
>>
>> // When iOS user opens Mail file attachment using "Open in TSR",
>> ApplicationActivate event received but NOT QEvent::FileOpen
>>
>> switch (event->type())
>>
>> {
>>
>>
>>
>> #if 0 // Why was I calling m_mainWindow.show() here? Android problem?
>>
>> case QEvent::ApplicationActivate:
>>
>> {
>>
>> //clean();
>>
>> if (false == m_mainWindow.isMinimized())
>>
>> {
>>
>> qDebug("m_mainWindow.show()");
>>
>> // Why was I calling m_mainWindow.show() here? Android
>> problem?
>>
>> //m_mainWindow.show();
>>
>> }
>>
>> return true;
>>
>> }
>>
>> #endif
>>
>> case QEvent::FileOpen:
>>
>> {
>>
>> // Should file attachments be copied locally as if they were
>> downloaded from a TK?
>>
>> QString fileName = static_cast<QFileOpenEvent *>(event)->file();
>>
>> m_mainWindow.openFile(fileName);
>>
>> return true;
>>
>> }
>>
>> default:
>>
>> break;
>>
>> }
>>
>> return QApplication::event(event);
>>
>> }
>>
>> #endif
>>
>>
>>
>> -Ed
>>
>>
>>
>> File: myApplicationDelegate.mm
>>
>>
>> #include <UIKit/UIKit.h>
>>
>>
>>
>> #include <QDebug>
>>
>> #include <QFileOpenEvent>
>>
>>
>>
>>
>>
>> #include "qiosapplicationdelegate.h"
>>
>>
>>
>> /// \category QIOSApplicationDelegate(TcmwApplicationDelegate)
>>
>> /// \abstract A category on QIOSApplicationDelegate to override openURL
>>
>>
>>
>>
>>
>> /// Use the Objective-C category feature to override the openURL method
>>
>> @implementation QIOSApplicationDelegate (TcmwApplicationDelegate)
>>
>>
>>
>> /// Posts a QFileOpenEvent to QCoreApplication when iOS calls openURL.
>>
>> ///
>>
>> /// This allows userto open a TSR file from Apple Mail,
>>
>> /// select "Open in TSR", to launch TSR and pass openURL the
>>
>> /// file to open.
>>
>> ///
>>
>> /// Must add UTExportedTypeDeclarations and CFBundleDocumentTypes to your
>>
>> /// Info.plist for this to work.
>>
>> ///
>>
>> /// Example: Info.plist
>>
>> /// \verbatim
>>
>> /// <key>UTExportedTypeDeclarations</key>
>>
>> /// <array>
>>
>> /// <dict>
>>
>> /// <key>UTTypeConformsTo</key>
>>
>> /// <array>
>>
>> /// <string>public.data</string>
>>
>> /// </array>
>>
>> /// <key>UTTypeDescription</key>
>>
>> /// <string>Tracking Status Report</string>
>>
>> /// <key>UTTypeIdentifier</key>
>>
>> /// <string>com.ditchwitch.tsr</string>
>>
>> /// <key>UTTypeTagSpecification</key>
>>
>> /// <dict>
>>
>> /// <key>public.filename-extension</key>
>>
>> /// <string>tsr</string>
>>
>> /// <key>public.mime-type</key>
>>
>> /// <string>public.data</string>
>>
>> /// </dict>
>>
>> /// </dict>
>>
>> /// </array>
>>
>> /// <key>CFBundleDocumentTypes</key>
>>
>> /// <array>
>>
>> /// <dict>
>>
>> /// <key>CFBundleTypeIconFiles</key>
>>
>> /// <array>
>>
>> /// <string>Icon.png</string>
>>
>> /// </array>
>>
>> /// <key>CFBundleTypeName</key>
>>
>> /// <string>Tracking Status Report</string>
>>
>> /// <key>CFBundleTypeRole</key>
>>
>> /// <string>Editor</string>
>>
>> /// <key>LSHandlerRank</key>
>>
>> /// <string>Owner</string>
>>
>> /// <key>LSItemContentTypes</key>
>>
>> /// <array>
>>
>> /// <string>com.ditchwitch.tsr</string>
>>
>> /// <string>public.data</string>
>>
>> /// </array>
>>
>> /// </dict>
>>
>> /// </array>
>>
>> /// \endverbatim
>>
>> ///
>>
>> /// See file: tcmwapplication.cpp
>>
>> /// \see tcmwapplication.cpp
>>
>> ///
>>
>> /// \see
>> https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/ProgrammingWithObjectiveC/CustomizingExistingClasses/CustomizingExistingClasses.html
>>
>> ///
>>
>> - (BOOL)application:(UIApplication *)application openURL:(NSURL *)url
>>
>> sourceApplication:(NSString
>> *)sourceApplication
>>
>> annotation:(id)annotation
>>
>> {
>>
>> Q_UNUSED(application);
>>
>> Q_UNUSED(annotation);
>>
>>
>>
>> NSLog(@"sourceApplication: %@",sourceApplication);
>>
>> NSLog(@"url: %@",url);
>>
>>
>>
>> QString filePath = QString::fromNSString(url.path);
>>
>> qDebug("filePath %s", filePath.toLatin1().data());
>>
>>
>>
>> QFileOpenEvent *fileOpenEvent = new QFileOpenEvent(filePath);
>>
>> QCoreApplication::postEvent(QCoreApplication::instance(),
>> fileOpenEvent);
>>
>>
>>
>> return YES;
>>
>> }
>>
>>
>>
>> @end
>>
>>
>>
>>
>> On Nov 13, 2015, at 12:24 PM, maitai <maitai at virtual-winds.org> wrote:
>>
>> Hello all,
>>
>> Since I updated to 5.5, I cannot launch my application by opening an email
>> attachment or such methods, for file extensions that have been registered
>> for my app in info.plist
>>
>> I can open the documents only if the app is already running.
>>
>> I can see in the app's log the following message:
>>
>> (...)
>> Nov 13 19:03:39 iPad-maitai com.apple.mdt[483] <Notice>: Copy
>> /var/mobile/Library/Mail/IMAP-xxxxxx at gmail.com@imap.gmail.com/INBOX.imapmbox/Attachments/2126/2/530_1.KAP
>> ->
>> /private/var/mobile/Containers/Data/Application/53F9684F-8FF2-4A10-A9BD-87A93C97FB11/Documents/Inbox
>> Nov 13 19:03:39 iPad-maitai kernel[0] <Notice>: xpcproxy[484] Container:
>> /private/var/mobile/Containers/Data/Application/53F9684F-8FF2-4A10-A9BD-87A93C97FB11
>> (sandbox)
>> Nov 13 19:03:39 iPad-maitai qtVlm[484] <Warning>:
>> didFinishLaunchingWithOptions option happen
>> Nov 13 19:03:39 iPad-maitai qtVlm[484] <Warning>: url received:
>> /private/var/mobile/Containers/Data/Application/53F9684F-8FF2-4A10-A9BD-87A93C97FB11/Documents/Inbox/530_1.KAP
>> Nov 13 19:03:40 iPad-maitai kernel[0] <Notice>: Sandbox: qtVlm(484) deny(1)
>> file-read-data /dev/tty
>> Nov 13 19:03:40 iPad-maitai qtVlm[484] <Warning>: qwarning received:
>> starting up nslogmessage
>> Nov 13 19:03:40 iPad-maitai qtVlm[484] <Warning>: qwarning received: step 2
>> Nov 13 19:03:40 iPad-maitai qtVlm[484] <Warning>: qwarning received: step 3
>> Nov 13 19:03:40 iPad-maitai qtVlm[484] <Warning>: qwarning received: step 4
>> Nov 13 19:03:40 iPad-maitai qtVlm[484] <Warning>: <CATransformLayer:
>> 0x15da1ee0> - changing property masksToBounds in transform-only layer, will
>> have no effect
>> Nov 13 19:03:40 iPad-maitai qtVlm[484] <Warning>: <CATransformLayer:
>> 0x15da4680> - changing property masksToBounds in transform-only layer, will
>> have no effect
>> Nov 13 19:03:40 iPad-maitai qtVlm[484] <Warning>: <CATransformLayer:
>> 0x15d50730> - changing property masksToBounds in transform-only layer, will
>> have no effect
>> Nov 13 19:03:40 iPad-maitai qtVlm[484] <Warning>: qwarning received: step 5
>> just before qApp->exec()
>> Nov 13 19:03:41 iPad-maitai kernel[0] <Notice>: 024305.657672 wlan0.W[123]
>> AWDL MODE: OFF
>> Nov 13 19:03:57 iPad-maitai backboardd[63] <Warning>: CoreAnimation: updates
>> deferred for too long
>> Nov 13 19:03:59 iPad-maitai SpringBoard[48] <Warning>: Forcing crash report
>> of <FBApplicationProcess: 0x192412a0; qtVlm; pid: 484> (reason: 1,
>> description: com.meltemus.qtvlm failed to scene-create after 19.68s (launch
>> took 0.32s of total time limit 20.00s))
>> (...)
>>
>> The full story is that I override QIOSApplicationDelegate to be able to
>> manage didFinishLaunchingWithOptions and openUrl methods, but even if I
>> remove my implementations and let Qt regular QIOSApplicationDelegate load, I
>> get the same crash. I can see that main.cpp reaches the point where it calls
>> qApp->exec() and stays stuck there until a timeout of some sort occurs. I
>> can see that didFinishLaunchingWithOptions is called if I activate my own
>> delegate, as you can read from the log. But anyway with or without my own
>> delegate, I get this crash when I launch the app through a file opening.
>> What is this message about CoreAnimation taking too long that I don't get
>> when I launch the app normally?
>>
>> If I launch the application by clicking on the icon, it works and takes less
>> than 2secs to load, and it will even accept all incoming files through
>> openUrl. didFinishLaunchingWithOptions is called at startup too, but with no
>> url as expected.
>>
>> I am sure that was working before with qt 5.4.2.
>>
>> What should I do to make this working? And btw what is the recommended way
>> to override QIOSApplicationDelegate in order not to be annoyed each time a
>> new qt version is released, and still be able to handle openUrl and such?
>>
>> Thanks in advance
>> Philippe Lelong
>> _______________________________________________
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>>
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