iOS开发传感器相关
手机里面内置了很多的传感器，例如：光传感器，湿度传感器，温度传感器，距离传感器等等
//开发传感器相关的东西必须使用真机
//在螺旋仪和加速计所有两种方式push和pull的方式，push的方式是时时检测，pull的方式是需要时获取检测值
/*
加速计push的使用步骤：
1.创建运动管理者
_mgr = [[CMMotionManager alloc] init];
2.判断手机加速计是否可用
if (!self.mgr.isAccelerometerAvailable) {
NSLog(@"加速计不可使用,请更换手机");
return;
}
3.设置取样间隔
self.mgr.accelerometerUpdateInterval = 1.0/30.0;
4.开启检测
[self.mgr startAccelerometerUpdatesToQueue:[NSOperationQueue mainQueue] withHandler:^(CMAccelerometerData * _Nullable accelerometerData, NSError * _Nullable error) {
CMAcceleration acceleration = accelerometerData.acceleration;
NSLog(@"x:%f y:%f z:%f",acceleration.x,acceleration.y,acceleration.z);
}];
2.陀螺仪pull方式使用步骤
1.创建运动管理者
_mgr = [[CMMotionManager alloc] init];
2.判断手机陀螺仪是否可用
if (!self.mgr.isGyroAvailable) {
NSLog(@"陀螺仪不可用");
return;
}
3.开启检测
[self.mgr startGyroUpdates];
4.获取需要的值
CMRotationRate rotationRate = self.mgr.gyroData.rotationRate;
NSLog(@"x:%f y:%f z:%f",rotationRate.x,rotationRate.y,rotationRate.z);
//加速计和陀螺仪的用法基本一致--------------
//运动管理者控制器要去拥有它，否则有可能为局部变量，不能使用.
*/
//#import <CoreMotion/CoreMotion.h>导入与运动相关框架
#import "ViewController.h"
#import <CoreMotion/CoreMotion.h>
@interface ViewController ()
@property (nonatomic,strong) CMMotionManager * mgr;
@end
@implementation ViewController
//懒加载创建运动管理者
- (CMMotionManager *)mgr
{
if (_mgr == nil) {
_mgr = [[CMMotionManager alloc] init];
}
return _mgr;
}
- (void)viewDidLoad {
[super viewDidLoad];
}
- (void)motionBegan:(UIEventSubtype)motion withEvent:(UIEvent *)event
{
NSLog(@"%zd,%@",motion,event);
NSLog(@"开始摇晃");
}
- (void)motionCancelled:(UIEventSubtype)motion withEvent:(UIEvent *)event
{
NSLog(@"%zd,%@",motion,event);
NSLog(@"摇晃取消");
}
- (void)motionEnded:(UIEventSubtype)motion withEvent:(UIEvent *)event
{
NSLog(@"%zd,%@",motion,event);
NSLog(@"摇晃结束");
}
- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
{
//加速计相关
// CMAcceleration acceleration = self.mgr.accelerometerData.acceleration;
// NSLog(@"x:%f y:%f z:%f",acceleration.x,acceleration.y,acceleration.z);
//加速计相关
//陀螺仪相关
CMRotationRate rotationRate = self.mgr.gyroData.rotationRate;
NSLog(@"x:%f y:%f z:%f",rotationRate.x,rotationRate.y,rotationRate.z);
}
- (void)pullGyro
{
if (!self.mgr.isGyroAvailable) {
NSLog(@"陀螺仪不可用");
return;
}
[self.mgr startGyroUpdates];
}
- (void)pushGyro
{
//判断手机的陀螺仪是否可用
if (!self.mgr.gyroAvailable) {
NSLog(@"陀螺仪不可用，请更换手机");
return;
}
//设置采样间隔
self.mgr.gyroUpdateInterval = 1.0/20.0;
//开始检测陀螺仪的变化
[self.mgr startGyroUpdatesToQueue:[NSOperationQueue mainQueue] withHandler:^(CMGyroData * _Nullable gyroData, NSError * _Nullable error) {
CMRotationRate rotationRate = self.mgr.gyroData.rotationRate;
NSLog(@"x:%f y:%f z:%f",rotationRate.x,rotationRate.y,rotationRate.z);
}];
}
- (void)pullAccelerometer
{
if (!self.mgr.isAccelerometerAvailable) {
NSLog(@"加速计不可使用,请更换手机");
return;
}
[self.mgr startAccelerometerUpdates];
}
- (void)pushAccelerometer
{
//CMMotionManager * mgr = [[CMMotionManager alloc] init];
//判断加速计是否可用
if (!self.mgr.isAccelerometerAvailable) {
NSLog(@"加速计不可用，请更换手机");
return;
}
//设置采样间隔
self.mgr.accelerometerUpdateInterval = 1.0/30.0;
[self.mgr startAccelerometerUpdatesToQueue:[NSOperationQueue mainQueue] withHandler:^(CMAccelerometerData * _Nullable accelerometerData, NSError * _Nullable error) {
CMAcceleration acceleration = accelerometerData.acceleration;
NSLog(@"x:%f y:%f z:%f",acceleration.x,acceleration.y,acceleration.z);
}];
}
- (void)proximityMonitoring
{
//开启距离传感器
[UIDevice currentDevice].proximityMonitoringEnabled = YES;
//监听距离的变化
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(proximityStateDidChange:) name:UIDeviceProximityStateDidChangeNotification object:nil];
}
- (void)proximityStateDidChange:(NSNotification*)noti
{
if ([UIDevice currentDevice].proximityState == YES) {
NSLog(@"有物品靠近");
}else{
NSLog(@"物品离开");
}
}
- (void)dealloc
{
[[NSNotificationCenter defaultCenter] removeObserver:self];
}
