代码示例
Push方式获取数据
加速度计
CMMotionManager *manager = [[CMMotionManager alloc] init];
if ([manager isAccelerometerAvailable] && ![manager isAccelerometerActive]){
NSOperationQueue *queue = [[NSOperationQueue alloc] init];
manager.accelerometerUpdateInterval = 0.1;//设置信息更新频率(0.1s获取一次)
[manager startAccelerometerUpdatesToQueue:queue
withHandler:^(CMAccelerometerData *accelerometerData, NSError *error)
{
CMAcceleration acceleration = accelerometerData.acceleration;
NSLog(@"x = %.04f", acceleration.x);
NSLog(@"y = %.04f", acceleration.y);
NSLog(@"z = %.04f", acceleration.z);
}];
}
陀螺仪
CMMotionManager *manager = [[CMMotionManager alloc] init];
if ([manager isGyroAvailable] && ![manager isGyroActive]){
NSOperationQueue *queue = [[NSOperationQueue alloc] init];
manager.gyroUpdateInterval = 0.1;//设置信息更新频率(0.1s获取一次)
[manager startGyroUpdatesToQueue:queue
withHandler:^(CMGyroData *gyroData, NSError *error)
{
CMRotationRate rotationrate = gyroData.rotationRate;
NSLog(@"x = %.04f", rotationRate.x);
NSLog(@"y = %.04f", rotationRate.y);
NSLog(@"z = %.04f", rotationRate.z);
}];
}
Pull方式获取数据
#define SCREEN_WIDTH [UIScreen mainScreen].bounds.size.width
#define SCREEN_HEIGHT [UIScreen mainScreen].bounds.size.height
@interface ViewController ()
@property (strong, nonatomic) CMMotionManager *motionManager;
//UI
@property (strong, nonatomic) UIButton *starButton; //启动 MotionManager
@property (strong, nonatomic) UIButton *pullButton; //拉取数据
@property (strong, nonatomic) UIButton *stopButton; //停止 MotionManager
@end
@implementation ViewController
#pragma mark - 懒加载
- (CMMotionManager *)motionManager{
if (!_motionManager) {
_motionManager = [[CMMotionManager alloc] init];
_motionManager.accelerometerUpdateInterval = 0.1;
_motionManager.gyroUpdateInterval = 0.1;
}
return _motionManager;
}
- (UIButton *)starButton{
if (!_starButton) {
_starButton = [[UIButton alloc]initWithFrame:CGRectMake(50, 100, 50, 50)];
[_starButton setTitle:@"启动" forState:UIControlStateNormal];
[_starButton addTarget:self action:@selector(startMotion) forControlEvents:UIControlEventTouchUpInside];
}
return _starButton;
}
- (UIButton *)pullButton{
if (!_pullButton) {
_pullButton = [[UIButton alloc]initWithFrame:CGRectMake(SCREEN_WIDTH/2-50, 100, 100, 50)];
[_pullButton setTitle:@"拉取数据" forState:UIControlStateNormal];
[_pullButton addTarget:self action:@selector(pullMotionData) forControlEvents:UIControlEventTouchUpInside];
}
return _pullButton;
}
- (UIButton *)stopButton{
if (!_stopButton) {
_stopButton = [[UIButton alloc]initWithFrame:CGRectMake(SCREEN_WIDTH-100, 100, 50, 50)];
[_stopButton setTitle:@"停止" forState:UIControlStateNormal];
[_stopButton addTarget:self action:@selector(stopMotion) forControlEvents:UIControlEventTouchUpInside];
}
return _stopButton;
}
#pragma mark - 生命周期处理
- (void)viewDidLoad {
[self.view addSubview:self.starButton];
[self.view addSubview:self.pullButton];
[self.view addSubview:self.stopButton];
}
#pragma mark - Pull
- (void)startMotion{
if (self.motionManager.isAccelerometerActive == NO) {
[self.motionManager startAccelerometerUpdates];
}
if (self.motionManager.isGyroActive == NO){
[self.motionManager startGyroUpdates];
}
}
- (void)pullMotionData{
//陀螺仪拉取数据
CMGyroData *gyroData = [self.motionManager gyroData];
CMRotationRate rotationrate = gyroData.rotationRate;
NSLog(@"x = %.04f", rotationRate.x);
NSLog(@"y = %.04f", rotationRate.y);
NSLog(@"z = %.04f", rotationRate.z);
//加速度计拉取数据
CMAccelerometerData *data = [self.motionManager accelerometerData];
CMAcceleration acceleration = data.acceleration;
NSLog(@"x = %.04f", acceleration.x);
NSLog(@"y = %.04f", acceleration.y);
NSLog(@"z = %.04f", acceleration.z);
}
- (void)stopMotion{
//陀螺仪
if (self.motionManager.isGyroActive == YES) {
[self.motionManager stopGyroUpdates];
}
//加速度计
if (self.motionManager.isAccelerometerActive == YES) {
[self.motionManager stopAccelerometerUpdates];
}
}
@end
