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@implementation ViewControllerspa
- (void)viewDidLoad {.net
[super viewDidLoad];3d
//1. 打开距离检测orm
[UIDevice currentDevice].proximityMonitoringEnabled = YES;server
//2. 使用通知来检测距离的变化rem
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(deviceProximityStateDidChangeNotification) name:UIDeviceProximityStateDidChangeNotification object:nil];get
}it
#pragma mark 3. 通知绑定的方法io
- (void)deviceProximityStateDidChangeNotification
{
if ([UIDevice currentDevice].proximityState) {
//靠近了手机
NSLog(@"有物体靠近");
} else {
NSLog(@"物体走咧");
}
}
#pragma mark 移除观察者
- (void)dealloc
{
[[NSNotificationCenter defaultCenter] removeObserver:self];
}