Objective-C修改运动步数

iOS上面的计步应用都是访问“健康”内的数据，所以只要修改“健康”的数据就可以达到修改QQ或者微信步数的需求，装X神技。

首先打开HealthKit：TARGETS–Capabilities–HealthKit



然后倒入导入HealthKit.framework：TARGETS–Build Phases–Link Binary With Libraries



导入头文件：

#import <HealthKit/HealthKit.h>

主要的代码：

//获取权限
HKQuantityType *stepCountType = [HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierStepCount];
NSSet *writeDataTypes = [NSSet setWithObjects:stepCountType, nil];
[self.healthStore requestAuthorizationToShareTypes:writeDataTypes readTypes:nil completion:^(BOOL success, NSError * _Nullable error) {
}];
//修改步数
HKQuantityType * quantityTypeIdentifier = [HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierStepCount];
HKQuantity *quantity = [HKQuantity quantityWithUnit:[HKUnit countUnit] doubleValue:stepsCounts];
HKQuantitySample *temperatureSample = [HKQuantitySample quantitySampleWithType:quantityTypeIdentifier quantity:quantity startDate:[NSDate date] endDate:[NSDate date] metadata:nil];

[self.healthStore saveObject:temperatureSample withCompletion:^(BOOL success, NSError * _Nullable error) {
if (success) {
dispatch_async(dispatch_get_main_queue(), ^{
[self _showAlert:@"添加成功"];
});
}else{
dispatch_async(dispatch_get_main_queue(), ^{
[self _showAlert:@"添加失败"];
});
}
}];

stepsCounts为要修改的步数，需要注意的是：要回到主线程来进行UI操作，显示Alert，而且需要真机运行。

GitHub上demo地址：https://github.com/FEverStar/ChangeStepCounts.git