1

下の画像でわかるように、すべての注釈に同じimageとがあり、discountこれは正しくありません。異なるimageとを持つ必要がありdiscountます。どうすればこれを修正できますか? discountStr「imgPathStr」プロパティと次のコードを持つカスタム注釈クラスを使用しています。ここに画像の説明を入力

-(void) connectionDidFinishLoading: (NSURLConnection *) connection
{
     [UIApplication sharedApplication].networkActivityIndicatorVisible = NO;

_adResultDict = [NSJSONSerialization JSONObjectWithData:_adResultData options:kNilOptions error:nil];

NSMutableArray *annoArray = [[NSMutableArray alloc]init];

NSArray *adArray = [[_adResultDict objectForKey:@"result"]objectForKey:@"ads"];

for (int i = 0; i<adArray.count;i++ ) {
    NSString *latLongStr = [[adArray objectAtIndex:i]objectForKey:@"area_lat_long"];
    NSArray *tempLatLongArray =[ latLongStr componentsSeparatedByString:@","];

    CLLocationCoordinate2D adPlace;
    adPlace.latitude = [[tempLatLongArray objectAtIndex:0] doubleValue];
    adPlace.longitude = [[tempLatLongArray objectAtIndex:1]doubleValue];
    anno = [[Annotation alloc]init];
    anno.title = [[adArray objectAtIndex:i]objectForKey:@"ad_title"];
    anno.adDiscountStr = [[adArray objectAtIndex:i]objectForKey:@"discount"];
    anno.adPurposeStr = [[adArray objectAtIndex:i]objectForKey:@"ad_tab"];
    anno.adImagePathStr = [[adArray objectAtIndex:i]objectForKey:@"image_name"];

    anno.coordinate = adPlace;
    [annoArray addObject:anno];


    }
 [searchMapView addAnnotations:annoArray];


 [searchMapView reloadInputViews];
}

委任方法:

 - (MKAnnotationView *) mapView:(MKMapView *)mapView1 viewForAnnotation:(id <MKAnnotation>) annotation
{

MKAnnotationView *pinView = nil;
if(annotation != mapView1.userLocation)
{
    static NSString *defaultPinID = @"com.invasivecode.pin";
    pinView = (MKAnnotationView *)[mapView1 dequeueReusableAnnotationViewWithIdentifier:defaultPinID];
    if ( pinView == nil )
        pinView = [[MKAnnotationView alloc]
                   initWithAnnotation:annotation reuseIdentifier:defaultPinID];

    //pinView.pinColor = MKPinAnnotationColorGreen;
    pinView.canShowCallout = YES;
    //pinView.animatesDrop = YES;
    UIImageView *adImageView = [[UIImageView alloc]initWithFrame:CGRectMake(8, 8, 69, 61)];
    adImageView.contentMode =UIViewContentModeScaleToFill;
    pinView.centerOffset = CGPointMake(0, -45);
    adImageView.backgroundColor =[UIColor clearColor];
    CALayer * l = [adImageView layer];
    [l setMasksToBounds:YES];
    [l setCornerRadius:7.0];

    UIImageView *adDiscountImageView = [[UIImageView alloc]initWithFrame:CGRectMake(5, -20, 75, 35)];
    adDiscountImageView.image = [UIImage imageNamed:@"map-price-tag"];
    UILabel *adDiscountLabel = [[UILabel alloc]initWithFrame:CGRectMake(12, 8, 40, 20)];
    //adDiscountLabel.center = adDiscountImageView.center;
    if ([anno.adDiscountStr isEqualToString:@""] ||[anno.adDiscountStr isEqualToString:@"0"]) {
        adDiscountLabel.text = anno.adPurposeStr;
    }
    adDiscountLabel.text = [NSString stringWithFormat:@"%@%%",anno.adDiscountStr];
    adDiscountLabel.backgroundColor =[UIColor clearColor];
    adDiscountLabel.textColor = [UIColor whiteColor];

    pinView.image = [UIImage imageNamed:@"map-pop-up.png"];
    [pinView addSubview:adImageView];
    [pinView addSubview:adDiscountImageView];
    [adDiscountImageView addSubview:adDiscountLabel];


//        
    }
    else {
        [mapView1.userLocation setTitle:@"Current Location"];

    }
    return pinView;

}
4

2 に答える 2

2

これは、マップ ビューでよくある間違いです。知っておくべき重要なことは、注釈を作成しているメソッドviewForAnnotationとは無関係に呼び出されることです。iOS が決定した順序でそれが必要であると判断したときに呼び出されます。そのため、パラメータの 1 つが描画に必要な注釈です。コードでは、ループ内の最後の項目に基づいてすべてのラベルを計算しています。代わりに使用する必要がありますconnectionDidFinishLoadingviewForAnnotation adDiscountannoannotation

于 2013-04-30T08:18:12.527 に答える