queryPedometerData 函数未从小部件执行

Question

我正在使用 CMPedomer 收集步数数据。

if CMPedometer.isStepCountingAvailable() {
    print("Step counting is available...")

    let startDate = Calendar.current.date(bySettingHour: 0, minute: 0, second: 0, of: Date())
    let endDate = Date()

    CMPedometer().queryPedometerData(from: beforeDate!, to: Date()) { [weak self] (data, error) in
        print("Handler (data):")
        
        guard let activityData = data, error == nil else {
            
            print("There was an error getting the data: \(error!)")
                        
            return
        }
    
    todayStepCount = Int(truncating: activityData.numberOfSteps )
    todayDistanceCount = Double(truncating: activityData.distance ?? 0.0)
    todayFloorCount = Int(truncating: activityData.floorsAscended ?? 0)
    
    print(activityData)
    }
}

此功能在主应用程序中运行良好。在 Widget 中不起作用。

我调试小部件。这个 queryPedometerData 被调用但没有进入这个函数并且不打印任何内容。

CMPedometer().queryPedometerData(from: beforeDate!, to: Date()) { [weak self] (data, error) in

Answer 1

我首先通过定义 pedometer 实例在小部件中修复了相同的问题。

class Test {
     private let pedometer = CMPedometer()

     func stepCount(completion: @escaping(Int?) -> Void) {
        guard CMPedometer.isStepCountingAvailable() else {
            completion(0)
            return
        }
        let calendar = Calendar.current
        let now = Date()
        let startOfDay = calendar.startOfDay(for: now)

        pedometer.queryPedometerData(from: startOfDay, to: now) { (pedometerData, error) in
            if let stepCount = pedometerData?.numberOfSteps {
                completion(stepCount as? Int)
            } else {
                completion(0)
            }

        }
    }
}

可能和内存释放有关。 这是 ChatGPT 的原因。

如果您立即创建并使用实例，例如 CMPedometer().queryPedometerData，作用域将终止并且 CMPedometer 实例将被释放。