摇一摇功能

首先在viewDidLoad

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    
    //设置允许摇一摇功能
    [[UIApplication sharedApplication] setApplicationSupportsShakeToEdit:YES];
    //并且让自己成为第一响应者
    [self becomeFirstResponder];
}
#pragma mark - 摇一摇相关方法
// 摇一摇开始摇动
- (void)motionBegan:(UIEventSubtype)motion withEvent:(UIEvent *)event {
    NSLog(@"开始摇动");
    return;
}

// 摇一摇取消摇动
- (void)motionCancelled:(UIEventSubtype)motion withEvent:(UIEvent *)event {
    NSLog(@"取消摇动");
    return;
}

// 摇一摇摇动结束
- (void)motionEnded:(UIEventSubtype)motion withEvent:(UIEvent *)event {
    if (event.subtype == UIEventSubtypeMotionShake) { // 判断是否是摇动结束
        NSLog(@"摇动结束");
        UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"摇动成功" message:@"123" preferredStyle:UIAlertControllerStyleAlert];
        UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) {
            NSLog(@"取消");
        }];
        UIAlertAction *okAction = [UIAlertAction actionWithTitle:@"好的" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
            NSLog(@"确定");
        }];
        [alert addAction:cancelAction];
        [alert addAction:okAction];
        [self presentViewController:alert animated:YES completion:nil];
    }
    return;
}
在模拟器上模拟摇一摇功能如图