百度地图修改定位图标并实现动画

由于最近的项目有用到百度地图的地方,要求修改百度地图的定位图标,并且实现动画.

下面直接贴码

- (void)viewDidLoad

{

    [super viewDidLoad];

//调用实现定位图标修改的方法,在此之前需要获取到定位地址的经纬度

    [self loadAnnotion];

}

-(void)loadAnnotion{ 

 static dispatch_once_t addLocation; //只执行一次 

 dispatch_once(&addLocation, ^{ 

 BMKPointAnnotation *annotation = [[BMKPointAnnotation alloc]init]; 

 annotation.coordinate = self.coor;   //self.coor为获取到的定位地址经纬度

 [_mapView addAnnotation:annotation]; 

 }); 

 }

// 根据anntation生成对应的View

- (BMKAnnotationView *)mapView:(BMKMapView *)mapView viewForAnnotation:(id)annotation

{

    NSString *ID = @"annotion";

    BMKPinAnnotationView *annotationView = (BMKPinAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:ID];

    if (annotationView == nil) {

        annotationView = [[BMKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:ID];

        annotationView.image = [UIImage imageNamed:@"locationback"];//此处的图片为一张白色的背景图

        annotationView.size = CGSizeMake(30, 30); //设置大小

        annotationView.layer.cornerRadius = 15; // 设置为圆形的视图

        annotationView.layer.masksToBounds = YES;



// 在此处,为圆形的背景上添加一个小红点

        UIView *redDots = [[UIView alloc]init];

        redDots.frame = CGRectMake(7.5, 7.5, 15, 15);

        redDots.backgroundColor = [UIColor redColor];

        redDots.layer.cornerRadius = 7.5;

        [annotationView addSubview:redDots];



//实现动画

CAKeyframeAnimation* animation = [CAKeyframeAnimation animationWithKeyPath:@"transform"];

        animation.duration = 3.0;// 动画时间

        NSMutableArray *values = [NSMutableArray array];

        [values addObject:[NSValue valueWithCATransform3D:CATransform3DMakeScale(0.7, 0.7, 1.0)]];

        [values addObject:[NSValue valueWithCATransform3D:CATransform3DMakeScale(1.3, 1.3, 1.0)]];

        [values addObject:[NSValue valueWithCATransform3D:CATransform3DMakeScale(0.9, 0.9, 1.0)]];

        [values addObject:[NSValue valueWithCATransform3D:CATransform3DMakeScale(0.7, 0.7, 1.0)]];

        animation.values = values;

        animation.repeatCount = FLT_MAX;

        [redDots.layer addAnimation:animation forKey:nil];

    }

    return annotationView;

}