iphone晃动检测的两种方式

最新推荐文章于 2025-12-24 11:03:04 发布

最新推荐文章于 2025-12-24 11:03:04 发布 · 758 阅读

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#ios #晃动检测

本文介绍了两种实现iOS设备晃动事件检测的方法。第一种通过设置applicationSupportsShakeToEdit属性并在ViewController中处理motionEnded事件；第二种利用UIAccelerometer监听加速度变化。

第一种

1、在AppDelegate.h中进行如下设置：

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    application.applicationSupportsShakeToEdit = YES;
}

2、在你需要对晃动事件进行处理的ViewController中添加如下代码：

-(BOOL)canBecomeFirstResponder {
    return YES;
}

-(void)viewDidAppear:(BOOL)animated {
    [super viewDidAppear:animated];
    [self becomeFirstResponder];
}

- (void)viewWillDisappear:(BOOL)animated {
    [self resignFirstResponder];
    [super viewWillDisappear:animated];
}

- (void)motionEnded:(UIEventSubtype)motion withEvent:(UIEvent *)event
{
    if (motion == UIEventSubtypeMotionShake) {
        NSLog(@"检测到晃动");
    }
}

3、在模拟器中测试晃动，按组合键：Ctrl + Win + Z

第二种：利用UIAccelerometer加速器来检测

- (void)viewDidLoad
{

    UIAccelerometer *accelerometer = [UIAccelerometer sharedAccelerometer];
    accelerometer.delegate = self;
    accelerometer.undateInterval = 1.0f / 60.0f; 

}
- (void)accelerometer:(UIAccelerometer *)accelerometer didAccelerate:(UIAcceletration *)acceleration
{
if(fabsf(acceleration.x)>2.0||fabsf(acceleration.y>2.0)||fabsf(acceleration.z)>2.0)
    {
        //NSLog(@"检测到晃动");
    }
}