2011-10-18 66 views
0

的冷杉,二,三RIMES我所測試的應用程序,它崩潰了幾次之後,我用了UISlider創建改變circle's直徑(疊加),然後crashed.Now,只是當我點擊/輕按滑塊以更改值,它突然crashes.As結果我有一個警告「的MKMapView」可不迴應「-addCircleWithRadius:」我在做什麼錯。 ?我也發佈了代碼。警告:「的MKMapView」可不迴應「-addCircleWithRadius:」

- (void)handleLongPress:(UIGestureRecognizer *)gestureRecognizer 
{ 
if (gestureRecognizer.state != UIGestureRecognizerStateBegan) 
    return; 

CGPoint touchPoint = [gestureRecognizer locationInView:mapview];  
CLLocationCoordinate2D touchMapCoordinate = [mapview convertPoint:touchPoint toCoordinateFromView:mapview]; 

//add pin where user touched down... 
MKPointAnnotation *pa = [[MKPointAnnotation alloc] init]; 
pa.coordinate = touchMapCoordinate; 
pa.title = @"Kerkim me baze rrethin"; 
[mapview addAnnotation:pa]; 
[pa release]; 
tmC = touchMapCoordinate; 

double radius = 500.0; 

MKCircle *circle = [MKCircle circleWithCenterCoordinate:tmC radius:radius]; 
[mapview addOverlay:circle]; 

} 

- (void)addCircleWithRadius:(double)radius 
{ 
MKCircle *circle = [MKCircle circleWithCenterCoordinate:tmC radius:radius]; 
[mapview addOverlay:circle]; 
[circle release]; 
} 

- (IBAction)sliderChanged:(UISlider *)sender 
{ 
[mapview removeOverlays:[mapview overlays]];  
double radius = (sender.value); 
[mapview addCircleWithRadius:radius];//Here appears the warning,this is the order of my code. 
} 

回答

2

MKMapView類沒有一個addCircleWithRadius:方法 - 該方法是你寫的類的一部分,所以你可能應該調用[self addCircleWithRadius:radius]代替。

+0

是的,並從該方法中移除'[circle release];',因爲'circle'將被自動釋放。 – Anna

+0

謝謝!現在的問題是resolved.I確實也刪除'[圈釋放]'可是,我可能會問,因爲與此有關的代碼另一個問題它發生在類似的問題[MKOverlay不調整順利(HTTP://? stackoverflow.com/questions/4876035/mkoverlay-not-resizing-smoothly),覆蓋並不順利,在all.Sometimes調整,當滑塊處於較大值位置重疊甚至disappears.I必須將其放置在較低值和而不是在那個位置上,因爲它是可見的。它可能是什麼? – Hari

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