四，iOS 界面中的摇一摇功能实现

首先导入头文件

#import <AudioToolbox/AudioToolbox.h> //震动需要的库

#import <CoreMotion/CoreMotion.h> //摇一摇需要的库

  //支持摇一摇并让他成为第一响应事件

    [[UIApplication sharedApplication]setApplicationSupportsShakeToEdit:YES];

    

    [self becomeFirstResponder];

具体的代码如下

@interface MotionShakeViewController ()

@property (nonatomic , strong) UILabel *pedoLab;

@end

@implementation MotionShakeViewController

- (void)viewDidLoad {

    [super viewDidLoad];

    // Do any additional setup after loading the view.

    

    //支持摇一摇并让他成为第一响应事件

    [[UIApplication sharedApplication]setApplicationSupportsShakeToEdit:YES];

    

    [self becomeFirstResponder];

    

    [self.view addSubview:self.pedoLab];

   

}

- (UILabel *)pedoLab{

    if (!_pedoLab) {

        _pedoLab = [[UILabel alloc]initWithFrame:CGRectMake(20, 220, W -40, 60)];

        _pedoLab.backgroundColor = DB_Blue;

        _pedoLab.textColor  = [UIColor whiteColor];

        _pedoLab.font = Font_CN(15);

        _pedoLab.textAlignment = NSTextAlignmentCenter;

    }

    return _pedoLab;

}

#pragma mark 摇一摇代码实现

- (void)motionBegan:(UIEventSubtype)motion withEvent:(UIEvent*)event

{

    //检测到摇动

    NSLog(@"1234567开始摇动");

    self.pedoLab.text = [NSString stringWithFormat:@"%@",@"开始摇动"];

}

- (void)motionCancelled:(UIEventSubtype)motion withEvent:(UIEvent*)event

{

    //摇动取消

    self.pedoLab.text = [NSString stringWithFormat:@"%@",@"摇一摇取消"];

}

- (void)motionEnded:(UIEventSubtype)motion withEvent:(UIEvent*)event

{

    //摇动结束

    /* 系统的震动不支持ipad touch **/

    AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);

    if(event.subtype == UIEventSubtypeMotionShake) {

        

        //somethinghappens

        NSLog(@"123344554566");

        self.pedoLab.text = [NSString stringWithFormat:@"%@",@"摇一摇结束"];

        

    }

    

}

-(BOOL)canBecomeFirstResponder {

    return YES;

}

-(void)viewDidAppear:(BOOL)animated {

    [super viewDidAppear:animated];

    [self becomeFirstResponder];

}

- (void)viewWillDisappear:(BOOL)animated {

    [self resignFirstResponder];

    [super viewWillDisappear:animated];

}