Ios MapView向自定义注释添加操作（右箭头）

我通过以下for循环创建注释接点：

UIButton *eventMore = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];

for (i = 0; i < [results count]; i++) {
    //NSLog(@"Result: %i = %@", i, results[i]);
    //NSLog(@"%@",[[results objectAtIndex:i] objectForKey:@"long"]);

    myAnn = [[CustomAnnotation alloc] init];
    location.latitude = (double)[[[results objectAtIndex:i] objectForKey:@"lat"] doubleValue];
    location.longitude = (double)[[[results objectAtIndex:i] objectForKey:@"long"] doubleValue];
    myAnn.coordinate = location;
    myAnn.title = [[results objectAtIndex:i] objectForKey:@"title"];
    myAnn.subtitle = [[results objectAtIndex:i] objectForKey:@"strap"];
    [eventMore addTarget:myAnn action:@selector(btnClicked:) forControlEvents:UIControlEventTouchUpInside];
    [locations addObject:myAnn];

    //NSLog(@"%i", [[results objectAtIndex:i] objectForKey:@"lat"]);
}

---

您没有为注释设置调用访问视图

示例代码

    for (i = 0; i < [results count]; i++) {

    MKPointAnnotation  *myAnn = [[MKPointAnnotation alloc] init];
    location.latitude = (double)[[[results objectAtIndex:i] objectForKey:@"lat"] doubleValue];
    location.longitude = (double)[[[results objectAtIndex:i] objectForKey:@"long"] doubleValue];
    myAnn.coordinate = location;
    myAnn.title = [[results objectAtIndex:i] objectForKey:@"title"];
    myAnn.subtitle = [[results objectAtIndex:i] objectForKey:@"strap"];
    [locations addObject:myAnn];

   }


   - (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation{

   static NSString *s = @"ann";
   MKAnnotationView *pin = [mapView dequeueReusableAnnotationViewWithIdentifier:s];
   if (!pin) {
    pin = [[MKPinAnnotationView alloc]initWithAnnotation:annotation reuseIdentifier:s];
    pin.canShowCallout = YES;
    pin.image = [UIImage imageNamed:@"pin.png"];

    pin.calloutOffset = CGPointMake(0, 0);
    UIButton *button = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
    [button addTarget:self
               action:@selector(viewDetails) forControlEvents:UIControlEventTouchUpInside];
    pin.rightCalloutAccessoryView = button;

}
return pin;
}

for（i=0；i<[结果计数]；i++）{
MKPointAnnotation*myAnn=[[MKPointAnnotation alloc]init]；
location.latitude=（double）[[results objectAtIndex:i]objectForKey:@“lat”]doubleValue]；
location.longitude=（double）[[results objectAtIndex:i]objectForKey:@“long”]doubleValue]；
myAnn.坐标=位置；
myAnn.title=[[results objectAtIndex:i]objectForKey:@“title”]；
myAnn.subtitle=[[results objectAtIndex:i]objectForKey:@“strap”]；
[对象：myAnn]；
}
-（MKAnnotationView*）地图视图：（MKMapView*）地图视图注释：（id）注释{
静态NSString*s=@“ann”；
MKAnnotationView*引脚=[mapView dequeueReusableAnnotationViewWithIdentifier:s]；
如果（！pin）{
pin=[[MKPinAnnotationView alloc]initWithAnnotation:annotation重用标识符：s]；
pin.canShowCallout=是；
pin.image=[UIImage ImageName:@“pin.png”]；
pin.calloutOffset=CGPointMake（0,0）；
UIButton*button=[UIButton button类型：UIButtonTypedTailButton]；
[按钮添加目标：自我
操作：@selector（viewDetails）for ControlEvents:UIControlEventTouchUpInside]；
pin.rightCalloutAccessoryView=按钮；
}
回位销；
}

是否应该在for循环中创建Evermore按钮？我不知道按您的方式操作是否会导致按钮多次触发选择器。从mkannotationview派生CustomAnnotion annotation和annotation view是不同的。我的示例是MKMapViewDelegate方法，它为注释提供注释视图。您应该将该按钮添加到视图中。因此，请按原样实现该方法is@Anil，正如您正确地说的“Annotation和Annotation view是不同的…”，您的答案中的第一个示例代码行（myAnn.right…）令人困惑，因为它意味着myAnn既是id又是MKAnnotationView（不推荐）。我建议将其删除。是否检查是否调用委托方法？当你点击pin时会发生什么？@AnnaKarenina当然。。谢谢我最初得到的回答是，我认为myAnn是一个注释视图。

    for (i = 0; i < [results count]; i++) {

    MKPointAnnotation  *myAnn = [[MKPointAnnotation alloc] init];
    location.latitude = (double)[[[results objectAtIndex:i] objectForKey:@"lat"] doubleValue];
    location.longitude = (double)[[[results objectAtIndex:i] objectForKey:@"long"] doubleValue];
    myAnn.coordinate = location;
    myAnn.title = [[results objectAtIndex:i] objectForKey:@"title"];
    myAnn.subtitle = [[results objectAtIndex:i] objectForKey:@"strap"];
    [locations addObject:myAnn];

   }


   - (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation{

   static NSString *s = @"ann";
   MKAnnotationView *pin = [mapView dequeueReusableAnnotationViewWithIdentifier:s];
   if (!pin) {
    pin = [[MKPinAnnotationView alloc]initWithAnnotation:annotation reuseIdentifier:s];
    pin.canShowCallout = YES;
    pin.image = [UIImage imageNamed:@"pin.png"];

    pin.calloutOffset = CGPointMake(0, 0);
    UIButton *button = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
    [button addTarget:self
               action:@selector(viewDetails) forControlEvents:UIControlEventTouchUpInside];
    pin.rightCalloutAccessoryView = button;

}
return pin;
}