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Qt iOS Background Modes not applied?

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  • A Offline
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    adddeeee
    wrote on 18 Aug 2021, 12:55 last edited by
    #1

    Hello,

    I am trying a simple example to learn how to apply Background Modes on iOS.

    It works perfectly fine in the simulator, but when running on my phone it does not.

    So, I have enabled ALL background modes in Xcode, just to be sure. In QML I have a timer counting seconds.

    In the simulated version in Xcode everything works as expected even if the simulated phone is locked. Running on a real target the app pauses as soon as home button is pressed.

    Am I missing something important? So far I have tried applying the background modes in Xcode, but also I have manually inserted the UIBackgroundModes key in Info.plist. Moreover I also included the file in my Qt project and added if to the .pro file:

    QMAKE_INFO_PLIST=$$PWD/Info.plist

    My Info.plist looks like this:

    <?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
    <plist version="1.0">
    <dict>
    <key>CFBundleDisplayName</key>
    <string>${PRODUCT_NAME}</string>
    <key>CFBundleExecutable</key>
    <string>${EXECUTABLE_NAME}</string>
    <key>CFBundleIconFile</key>
    <string>${ASSETCATALOG_COMPILER_APPICON_NAME}</string>
    <key>CFBundleIdentifier</key>
    <string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
    <key>CFBundleName</key>
    <string>${PRODUCT_NAME}</string>
    <key>CFBundlePackageType</key>
    <string>APPL</string>
    <key>CFBundleShortVersionString</key>
    <string>${QMAKE_SHORT_VERSION}</string>
    <key>CFBundleSignature</key>
    <string>${QMAKE_PKGINFO_TYPEINFO}</string>
    <key>CFBundleVersion</key>
    <string>${QMAKE_FULL_VERSION}</string>
    <key>LSRequiresIPhoneOS</key>
    <true/>
    <key>MinimumOSVersion</key>
    <string>${IPHONEOS_DEPLOYMENT_TARGET}</string>
    <key>NOTE</key>
    <string>This file was generated by Qt/QMake.</string>
    <key>UIBackgroundModes</key>
    <array>
    <string>location</string>
    <string>audio</string>
    <string>bluetooth-central</string>
    <string>bluetooth-peripheral</string>
    <string>external-accessory</string>
    <string>fetch</string>
    <string>location</string>
    <string>processing</string>
    <string>remote-notification</string>
    <string>voip</string>
    <string>newsstand-content</string>
    </array>
    <key>UILaunchStoryboardName</key>
    <string>LaunchScreen</string>
    <key>UISupportedInterfaceOrientations</key>
    <array>
    <string>UIInterfaceOrientationPortrait</string>
    <string>UIInterfaceOrientationPortraitUpsideDown</string>
    <string>UIInterfaceOrientationLandscapeLeft</string>
    <string>UIInterfaceOrientationLandscapeRight</string>
    </array>
    </dict>
    </plist>

    I am confused. How can it work smoothly in simulation, but not at all in target? Am I missing something regarding Info.plist?

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    18 Aug 2021, 12:55

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