我想在Google地图上添加标记,该标记将动画显示当前用户。 我无法像上面提到的链接那样获得确切的跳动动画,这是替代方式来突出显示我使用缩放动画制作的标记。
这样子...
要得到这样的动画。就这样
GMSMarker *markerUser;
NSTimer *timer;
int imageScale;
添加标记地图
imageScale=15;
CLLocationCoordinate2D position = CLLocationCoordinate2DMake(Userlat, Userlng);
markerUser = [GMSMarker markerWithPosition:position];
markerUser.title = @"You are here";
markerUser.icon=[self image:[UIImage imageNamed:@"marker_user.png"] scaledToSize:CGSizeMake(25.0f,40.0f)]; // Initial Marker Size
markerUser.appearAnimation = kGMSMarkerAnimationPop;
markerUser.infoWindowAnchor = CGPointMake(0.44f, 0.30f);
markerUser.map = mapView_;
启动计时器当标记在地图上添加和更改标记的图标具有不同的尺寸。
timer = [NSTimer scheduledTimerWithTimeInterval:0.1
target:self
selector:@selector(targetMethod:)
userInfo:nil
repeats:YES];
每0.1秒tragetMethod将被解雇的,在这里你可以规模的图标图像并重新分配给标记图标
-(void)targetMethod:(NSTimer *)timer {
if (imageScale<30) {
markerUser.icon=[self image:[UIImage imageNamed:@"marker_user.png"] scaledToSize:CGSizeMake(imageScale,imageScale*1.5)];
imageScale+=1;
}
else{
imageScale=15;
markerUser.icon=[self image:[UIImage imageNamed:@"marker_user.png"] scaledToSize:CGSizeMake(imageScale,imageScale*1.5)];
}
}
这里是方法将规模的UIImage
- (UIImage *)image:(UIImage*)originalImage scaledToSize:(CGSize)size
{
//avoid redundant drawing
if (CGSizeEqualToSize(originalImage.size, size))
{
return originalImage;
}
//create drawing context
UIGraphicsBeginImageContextWithOptions(size, NO, 0.0f);
//draw
[originalImage drawInRect:CGRectMake(0.0f, 0.0f, size.width, size.height)];
//capture resultant image
UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
//return image
return image;
}
这可能解决寻找这种动画的人的问题。