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Since ffigen added support for [`NativeCallable.listener`](https://api.flutter.dev/flutter/dart-ffi/NativeCallable/NativeCallable.listener.html) to its ObjC bindings, this example can be simplified. We can replace the `Dart_Port` logic with `ObjCBlock.listener`, which lets us get rid of most of the native code. We still need a small bit of native code to `retain` a reference to the callback's arguments before invoking the listener, otherwise the arguments may be ref counted and deleted before the Dart side of the callback is invoked. See https://github.com/dart-lang/native/issues/835
25 lines
885 B
YAML
25 lines
885 B
YAML
# Run with `flutter pub run ffigen --config ffigen.yaml`.
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name: PedometerBindings
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description: "Bindings for CM pedometers"
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language: objc
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output: "lib/pedometer_bindings_generated.dart"
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compiler-opts:
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- "-F/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/System/Library/Frameworks"
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- "-mios-version-min=13.0"
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exclude-all-by-default: true
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functions:
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include:
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- "wrapCallback"
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objc-interfaces:
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include:
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- "CMPedometer"
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- "NSDate"
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- "NSDateFormatter"
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headers:
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entry-points:
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- "src/pedometerHelper.h"
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# To use this API, you must include the NSMotionUsageDescription key in your app’s Info.plist file
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# and provide a usage description string for this key.
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# The usage description appears in the prompt that the user must accept the first time the system asks the user to access motion data for your app.
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