iOS in the gyroscope/speed Han Junqiang Blog

introduction of the framework:

#import <CoreMotion/CoreMotion.h>

To define property initialization correlation:

#import "ViewController.h" #import <CoreMotion/CoreMotion.h> @interface Viewcontroller () @property (nonatomic, Strong) Cmmotionmanager *motionmanager; @property (nonatomic, strong) Nsoperationqueue *quene; @end @implementation viewcontroller-(void) viewdidload {    [super viewdidload];   Initialize Cmmotionmanager    Self.motionmanager = [[Cmmotionmanager alloc]init];        Initialize nsoperationqueue    self.quene = [[Nsoperationqueue alloc]init];        Invoke accelerator    [self configureaccelerometer];        Call the gyroscope    [self Configuregrro];}

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Use of accelerators:

/*//Each device shakes, the system notifies each device that it is in use and can make itself the first responder-(BOOL) canbecomefirstresponder{return YES;}     -(void) Viewdidappear: (BOOL) animated{[self becomefirstresponder];} *///Accelerator Method-(void) configureaccelerometer{/**        * 5.0 before using pull mode, then use the push mode *//Pull mode//Determine if the accelerator can use if ([_motionmanager isaccelerometeravailable]) {        [_motionmanager setaccelerometerupdateinterval:1/40.0];    [_motionmanager startaccelerometerupdates];    }else{NSLog (@ "accelerator not available"); } *///push mode if ([_motionmanager isaccelerometeravailable]) {//Set accelerator frequency [_motionmanager s        Etaccelerometerupdateinterval:1/40.0]; Start collecting data [_motionmanager startaccelerometerupdatestoqueue:_quene withhandler:^ (cmaccelerometerdata *accelerometerD ATA, Nserror *error) {if (Fabs (accelerometerdata.acceleration.x) > 2.0 | | fabs (accelerometerdat A.ACCELERATION.Y) > 2.0 | |                Fabs (ACCELEROMETERDATA.ACCELERATION.Z) > 2.0) {NSLog (@ "Vibration detected"); } NSLog (@ "%.2f__%.2f__%.2f", Accelerometerdata.acceleration.x,accelerometerdata.acceleration.y,accelerometerdata                 . acceleration.z);    }];    }else{NSLog (@ "accelerator not available"); }//Touch End-(void) touchesended: (Nsset *) touches withevent: (uievent *) event{cmacceleration acceleration = _mo    TionManager.accelerometerData.acceleration; NSLog (@ "%.2f__%.2f__%.2f", acceleration.x,acceleration.y,acceleration.z);}

Use of gyroscopes:

Use of gyroscopes-(void) configuregrro{    if ([_motionmanager isgyroavailable]) {        [Self.motionmanager Startgyroupdatestoqueue:_quene withhandler:^ (Cmgyrodata *gyrodata, Nserror *error) {                        NSLog (@ "%.2f__%.2f__%.2f", GYRODATA.ROTATIONRATE.X,GYRODATA.ROTATIONRATE.Y,GYRODATA.ROTATIONRATE.Z);}                    ];    } else{        NSLog (@ "Gyro cannot be used");}    }

Some of the ways that shaking triggers:

-(void) Viewdiddisappear: (BOOL) animated{    [Self.motionmanager stopaccelerometerupdates];    [Self.motionmanager stopgyroupdates];} Trigger when starting shaking-(void) Motionbegan: (uieventsubtype) Motion withevent: (uievent *) event{    NSLog (@ "Start shaking");} Trigger when shaking-(void) motionended: (uieventsubtype) Motion withevent: (uievent *) event{    NSLog (@ "shaking End");} When the wobble is interrupted-(void) motioncancelled: (uieventsubtype) Motion withevent: (uievent *) event{    NSLog (@ "Undo Shake, Shake Stop");}

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iOS in the gyroscope/speed Han Junqiang Blog