摇一摇

设置允许摇一摇功能

[UIApplication sharedApplication].applicationSupportsShakeToEdit = YES;

成为第一响应者

[self becomeFirstResponder];

协议方法

//开始摇动- (void)motionBegan:(UIEventSubtype)motion withEvent:(UIEvent *)event
{
 return;
}
//取消摇动- (void)motionCancelled:(UIEventSubtype)motion withEvent:(UIEvent *)event 
{
 return;
}
//摇动结束- (void)motionEnded:(UIEventSubtype)motion withEvent:(UIEvent *)event 
{
     if (event.subtype == UIEventSubtypeMotionShake) { 
     // 判断是否是结束 
     } 
    return;
}

代码片

#import "ViewController.h"

@interface ViewController ()
{
    UIImageView *moveImageView;
}
@end

@implementation ViewController

- (void)viewDidLoad { 
     [super viewDidLoad]; 
     self.view.backgroundColor = [UIColor grayColor];
     moveImageView             = [[UIImageView alloc] init]; 
     moveImageView.bounds      = CGRectMake(0, 0, 177, 177); 
     moveImageView.center      = self.view.center;
     moveImageView.image       = [UIImage imageNamed:@"move"];
     [self.view addSubview:moveImageView];
    // 设置允许摇一摇
    [UIApplication sharedApplication].applicationSupportsShakeToEdit = YES; 
    // 成为第一响应者 
    [self becomeFirstResponder];}
#pragma mark - 协议方法
//开始摇动
- (void)motionBegan:(UIEventSubtype)motion withEvent:(UIEvent *)event { 
    NSLog(@"开始摇动");
    CAKeyframeAnimation *KFAnimtion = [CAKeyframeAnimation animationWithKeyPath:@"position"];
    //动画完成式是否移除
    KFAnimtion.removedOnCompletion = NO; 
    //动画执行后的状态 
    KFAnimtion.fillMode = kCAFillModeForwards;
    //运动的所有点 第一个是开始位置 目标位置
    KFAnimtion.values = [NSArray arrayWithObjects:
[NSValue valueWithCGPoint:CGPointMake( self.view.center.x, self.view.center.y)], 
[NSValue valueWithCGPoint:CGPointMake(self.view.center.x-50, self.view.center.y)], 
[NSValue valueWithCGPoint:CGPointMake(self.view.center.x+50, self.view.center.y)], 
[NSValue valueWithCGPoint:CGPointMake(self.view.center.x-50, self.view.center.y)], 
[NSValue valueWithCGPoint:CGPointMake(self.view.center.x+50, self.view.center.y)], 
[NSValue valueWithCGPoint:CGPointMake(self.view.center.x-50, self.view.center.y)], 
[NSValue valueWithCGPoint:CGPointMake(self.view.center.x+50, self.view.center.y)], 
[NSValue valueWithCGPoint:CGPointMake(self.view.center.x-50, self.view.center.y)],
[NSValue valueWithCGPoint:CGPointMake(self.view.center.x+50, self.view.center.y)],
[NSValue valueWithCGPoint:CGPointMake(self.view.center.x, self.view.center.y)], nil]; 
//这里面不是时间 而是对应上面动画的位置 时间指的是到达某一个点的时间点（总时间＊比例） 
KFAnimtion.keyTimes = [NSArray arrayWithObjects:
                      [NSNumber numberWithFloat:.1],
                      [NSNumber numberWithFloat:.2],
                      [NSNumber numberWithFloat:.3],
                      [NSNumber numberWithFloat:.4],
                      [NSNumber numberWithFloat:.5], 
                      [NSNumber numberWithFloat:.6],
                      [NSNumber numberWithFloat:.7], 
                      [NSNumber numberWithFloat:.8],
                      [NSNumber numberWithFloat:.9],
                      [NSNumber numberWithFloat:1],nil];
 //总时间 
KFAnimtion.duration = .5; 
[moveImageView.layer addAnimation:KFAnimtion forKey:@"key"]; return;
}
//取消摇动
- (void)motionCancelled:(UIEventSubtype)motion withEvent:(UIEvent *)event { 
     NSLog(@"取消摇动");
     return;
}
//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");
    //[moveImageView.layer removeAllAnimations];
    } 
    return;
}

@end