传感器
实现代码:
#import "ViewController.h" @interface ViewController () @end @implementation ViewController - (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib. // 1.开启距离传感器(注意: 默认情况距离传感器是关闭的)
// 只要开启之后, 就开始实时监听
[UIDevice currentDevice].proximityMonitoringEnabled = YES; // 2.当监听到有物体靠近设备时系统会发出通知
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(proximityStateDidChange:) name:UIDeviceProximityStateDidChangeNotification object:nil]; } // 注册了通知,在不使用的时候,一定要销毁
- (void)dealloc
{
[[NSNotificationCenter defaultCenter] removeObserver:self];
} // 当监听到有物体靠近设备时调用
- (void)proximityStateDidChange:(NSNotification *)note
{
if( [UIDevice currentDevice].proximityState)
{
NSLog(@"有物体靠近");
}else
{
NSLog(@"物体离开");
}
} @end
摇一摇
/**
* 开始摇晃就会调用
*/
- (void)motionBegan:(UIEventSubtype)motion withEvent:(UIEvent *)event
{
NSLog(@"%s", __func__);
}
/**
* 摇晃结束就会调用
*/
- (void)motionEnded:(UIEventSubtype)motion withEvent:(UIEvent *)event
{
NSLog(@"%s", __func__);
}
/**
* 摇晃被打断就会调用
*/
- (void)motionCancelled:(UIEventSubtype)motion withEvent:(UIEvent *)event
{
NSLog(@"%s", __func__);
}