ios - MKPinAnnotationView左侧按钮带有图像

Question

这是我的代码:

        UIButton* rightButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
        UIButton* leftButton = [UIButton buttonWithType:UIButtonTypeInfoLight];

        [rightButton setTitle:[(myLocation*)annotation url] forState:UIControlStateApplication];
        [rightButton addTarget:self
                        action:@selector(showDetails:)
              forControlEvents:UIControlEventTouchUpInside];
        customPinView.rightCalloutAccessoryView = rightButton;

        [leftButton setTitle:annotation.title forState:UIControlStateNormal]; 
        customPinView.leftCalloutAccessoryView = leftButton;

它可以工作，但是左键看起来像一个i在一个圆圈中。
我希望这辆绿色的汽车能够指示可获得的路线。
我怎样才能做到这一点？

提前致谢

Answer 1

在这种情况下，您应该创建自定义按钮。

UIButton * leftButton = [UIButton buttonWithType:UIButtonTypeCustom];
[leftButton setTitle:annotation.title forState:UIControlStateNormal];
[leftButton setBackgroundImage:[UIImage imageNamed:@"CAR_IMAGE.PNG"] forState:UIControlStateNormal];
customPinView.leftCalloutAccessoryView = leftButton;