创建带有按钮的自定义呼出视图 [英] Creating Custom Call out View with button on it

问题描述

我陷入了过去三天一直在上网的地图视图问题，但仍然找不到合适的解决方案.

I am stuck with a map View problem for which I was surfing the internet from the last three days but still not find any appropiate solution.

我的问题是，当我单击自定义的图钉时，出现标注.但是标准的标注只支持两行文字.在我的情况下，我必须显示一个带有按钮的四行文字. 请任何人告诉我如何创建自定义标注或应使用哪种方法，因为无法修改标准标注.

My problem is When I click on my pin which is customized, a callout appears. But standard callout support only two lines text.In my case I have to show four lines text with a button. Please any one tell me how to create a custom callout or what approach should I use as there is no way to modify the standard callout.

任何建议将不胜感激. 预先感谢.

Any suggestions would be highly appreciated. Thanks in advance.

推荐答案

在您的委托方法中

In your delegate method

- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation
{
    MKAnnotationView* annotationView = nil;

    //your code

        UIView *vw = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 100, 100)];
        vw.backgroundColor = [UIColor redColor];
        UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(5, 5, 50, 50)];
        label.numberOfLines = 4;
        label.text = @"hello\nhow are you\nfine";
        [vw addSubview:label];
        annotationView.leftCalloutAccessoryView = vw;
        return annotationView

}

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