ios - 在 iOS 版谷歌地图上的自定义标记上添加文本

Question

我正在尝试使用 Textview 放置标记。是否可以在 ios 中的谷歌地图上的标记上添加文本。

• 像这样

Answer 1

您必须制作一个 View ，您必须在其中创建一个 imageView(带有您的标记图像)和 Label(带有您的文本)并截取该 View 的屏幕截图，并将其设置为 GMSMarker 的图标。 像这样:

- (void)foo
{
    GMSMarker *marker = [GMSMarker new];

    UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0,0,60,60)];
    UIImageView *pinImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"myPin"]];
    UILabel *label = [UILabel new];
    label.text = @"1";
    //label.font = ...;
    [label sizeToFit];

    [view addSubview:pinImageView];
    [view addSubview:label];
    //i.e. customize view to get what you need    


    UIImage *markerIcon = [self imageFromView:view];
    marker.icon = markerIcon;        
    marker.map = self.mapView;      
}

- (UIImage *)imageFromView:(UIView *) view
{
    if ([[UIScreen mainScreen] respondsToSelector:@selector(scale)]) {
        UIGraphicsBeginImageContextWithOptions(view.frame.size, NO, [[UIScreen mainScreen] scale]);
    } else {
        UIGraphicsBeginImageContext(view.frame.size);
    }
    [view.layer renderInContext: UIGraphicsGetCurrentContext()];
    UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    return image;
}