我在另一个应用程序中具有相同的代码，并且可以正常运行，现在在该应用程序中，通知组没有通知，并且未调用我的处理程序？由于代码相同，我无法弄清楚这两个应用之间的区别？
func getHeartRateMaxFromWorkouts(workouts: [HKWorkout], handler: @escaping (careerMaxHeartRatePerWorkoutAsCustomHistoricalSample, careerAverageHeartRatePerWorkoutAsCustomHistoricalSample) -> Void) {
let workoutsReversed = workouts.reversed()
guard let heartRateType:HKQuantityType = HKQuantityType.quantityType(forIdentifier: HKQuantityTypeIdentifier.heartRate) else { return }
let heartRateUnit:HKUnit = HKUnit(from: "count/min")
var heartRateMaxArrayAsCustomHistoricalSample = [CustomHistoricalSample]()
var heartRateAvgArrayAsCustomHistoricalSample = [CustomHistoricalSample]()
//DispatchGroup needed since making async call per workout and need notified when all calls are done
let dispatchGroup = DispatchGroup()
for workout in workoutsReversed {
//predicate
let startDate = workout.startDate
let endDate = workout.endDate
let predicate = HKQuery.predicateForSamples(withStart: startDate, end: endDate, options: .strictStartDate)
//descriptor
let sortDescriptors = [
NSSortDescriptor(key: HKSampleSortIdentifierEndDate, ascending: true) //Changed this to false so that HRR and MCS would calculate, always check this if not getting these values
]
dispatchGroup.enter()
let heartRateQuery = HKSampleQuery(sampleType: heartRateType,
predicate: predicate,
limit: (HKObjectQueryNoLimit),
sortDescriptors: sortDescriptors)
{ (query:HKSampleQuery, results:[HKSample]?, error:Error?) -> Void in
guard error == nil else { print("get heart rate error"); return }
guard let unwrappedResults = results as? [HKQuantitySample] else { print("get heart rate error"); return}
let heartRatesAsDouble = unwrappedResults.map {$0.quantity.doubleValue(for: heartRateUnit)}
guard let max = heartRatesAsDouble.max() else { return }
let maxAsCustomHistoricalSample = CustomHistoricalSample(value: max, date: workout.startDate)
heartRateMaxArrayAsCustomHistoricalSample.append(maxAsCustomHistoricalSample)
let average = heartRatesAsDouble.average
let averageAsCustomHistoricalSample = CustomHistoricalSample(value: average, date: workout.startDate)
heartRateAvgArrayAsCustomHistoricalSample.append(averageAsCustomHistoricalSample)
dispatchGroup.leave()
}
healthStore.execute(heartRateQuery)
} //End of for workout loop
dispatchGroup.notify(queue: .main) {
//Need to sort by date since the dates come back jumbled
let sortedReversedHeartRateMaxArrayAsCustomHistoricalSampple = heartRateMaxArrayAsCustomHistoricalSample.sorted { $0.date > $1.date }.reversed() as [CustomHistoricalSample]
let sortedReversedHeartRateAverageArrayAsCustomHistoricalSampple = heartRateAvgArrayAsCustomHistoricalSample.sorted { $0.date > $1.date }.reversed() as [CustomHistoricalSample]
print("handler called = \(sortedReversedHeartRateMaxArrayAsCustomHistoricalSampple.count)")
handler(sortedReversedHeartRateMaxArrayAsCustomHistoricalSampple, sortedReversedHeartRateAverageArrayAsCustomHistoricalSampple)
}
} //End getHeartRateMaxFromWorkouts
答案 0 :(得分：2)
将回调留在顶部是个好习惯
Internal Server Error: /create/
Traceback (most recent call last):
File "/home/erichardson/env01/lib/python3.6/site-packages/django/core/handlers/exception.py", line 35, in inner
response = get_response(request)
File "/home/erichardson/env01/lib/python3.6/site-packages/django/core/handlers/base.py", line 128, in _get_response
response = self.process_exception_by_middleware(e, request)
File "/home/erichardson/env01/lib/python3.6/site-packages/django/core/handlers/base.py", line 126, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/home/erichardson/env01/personalwebsite/projects/views.py", line 52, in create_projects
return render(request, 'projects/forms.html', context)
File "/home/erichardson/env01/lib/python3.6/site-packages/django/shortcuts.py", line 36, in render
content = loader.render_to_string(template_name, context, request, using=using)
File "/home/erichardson/env01/lib/python3.6/site-packages/django/template/loader.py", line 62, in render_to_string
return template.render(context, request)
File "/home/erichardson/env01/lib/python3.6/site-packages/django/template/backends/django.py", line 61, in render
return self.template.render(context)
File "/home/erichardson/env01/lib/python3.6/site-packages/django/template/base.py", line 175, in render
return self._render(context)
File "/home/erichardson/env01/lib/python3.6/site-packages/django/template/base.py", line 167, in _render
return self.nodelist.render(context)
File "/home/erichardson/env01/lib/python3.6/site-packages/django/template/base.py", line 943, in render
bit = node.render_annotated(context)
File "/home/erichardson/env01/lib/python3.6/site-packages/django/template/base.py", line 910, in render_annotated
return self.render(context)
File "/home/erichardson/env01/lib/python3.6/site-packages/django/template/base.py", line 993, in render
output = self.filter_expression.resolve(context)
File "/home/erichardson/env01/lib/python3.6/site-packages/django/template/base.py", line 676, in resolve
obj = self.var.resolve(context)
File "/home/erichardson/env01/lib/python3.6/site-packages/django/template/base.py", line 802, in resolve
value = self._resolve_lookup(context)
File "/home/erichardson/env01/lib/python3.6/site-packages/django/template/base.py", line 835, in _resolve_lookup
current = current[bit]
File "/home/erichardson/env01/lib/python3.6/site-packages/django/forms/formsets.py", line 72, in __getitem__
return self.forms[index]
File "/home/erichardson/env01/lib/python3.6/site-packages/django/utils/functional.py", line 36, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "/home/erichardson/env01/lib/python3.6/site-packages/django/forms/formsets.py", line 136, in forms
for i in range(self.total_form_count())]
File "/home/erichardson/env01/lib/python3.6/site-packages/django/forms/formsets.py", line 110, in total_form_count
return min(self.management_form.cleaned_data[TOTAL_FORM_COUNT], self.absolute_max)
File "/home/erichardson/env01/lib/python3.6/site-packages/django/utils/functional.py", line 36, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "/home/erichardson/env01/lib/python3.6/site-packages/django/forms/formsets.py", line 92, in management_form
code='missing_management_form',
django.core.exceptions.ValidationError: ['ManagementForm data is missing or has been tampered with']