I have face some strange behaviour of MKMapview in iOS 8. I have custom view (subclass of UIView) which contain MKMapview in it.
NMView -> MKMapView
NMView Code
#import "NMView.h"
@implementation NMView
@synthesize mapView;
- (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) {
frame=self.bounds;
self.translatesAutoresizingMaskIntoConstraints=NO;
mapView=[[MKMapView alloc]initWithFrame:frame];
mapView.showsUserLocation=YES;
[mapView setAutoresizingMask:UIViewAutoresizingFlexibleWidth|UIViewAutoresizingFlexibleHeight];
[self setAutoresizingMask:UIViewAutoresizingFlexibleWidth|UIViewAutoresizingFlexibleHeight];
mapView.delegate=self;
[self addSubview:mapView];
self.backgroundColor=[UIColor grayColor];
}
return self;
}
-(void)addCustomAnnotaion:(id<MKAnnotation>)annot{
MKCoordinateRegion region=MKCoordinateRegionMake(annot.coordinate, MKCoordinateSpanMake(10.0f, 10.0f));
[mapView setRegion:region];
[mapView addAnnotation:annot];
// [mapView selectAnnotation:annot animated:YES];
}
- (MKAnnotationView *)mapView:(MKMapView *)mapViews viewForAnnotation:(id <MKAnnotation>)annotation
{
if ([annotation isKindOfClass:[MKUserLocation class]]){
return nil;
}
static NSString * const identifier = @"MyCustomAnnotation";
MKAnnotationView* annotationView = (MKAnnotationView*)[mapViews dequeueReusableAnnotationViewWithIdentifier:identifier];
if (annotationView){
annotationView.annotation = annotation;
}
else{
annotationView = [[MKAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:identifier];
annotationView.canShowCallout = YES;
UIView *rightView=[[UIView alloc]initWithFrame:CGRectMake(5, 0, 80,50)];
rightView.backgroundColor=[UIColor clearColor];
UIButton* edit = [UIButton buttonWithType:UIButtonTypeCustom];
[edit setImage:[UIImage imageNamed:@"editPOI"] forState:UIControlStateNormal];
[edit addTarget:self action:@selector(editPoi:) forControlEvents:UIControlEventTouchUpInside];
edit.backgroundColor=[UIColor clearColor];
edit.frame=CGRectMake(15, 5, 30,30);
UIButton* delButton = [UIButton buttonWithType:UIButtonTypeCustom];
[delButton setImage:[UIImage imageNamed:@"deletePOI"] forState:UIControlStateNormal];
[delButton addTarget:self action:@selector(deletePoi:) forControlEvents:UIControlEventTouchUpInside];
delButton.backgroundColor=[UIColor clearColor];
delButton.frame=CGRectMake(55, 5, 30,30);
[rightView addSubview:delButton];
[rightView addSubview:edit];
UIImageView *imgviewIcon=[[UIImageView alloc]initWithFrame:CGRectMake(0, 0, 30, 30)];
[imgviewIcon setImage:[UIImage imageNamed:@"pin.png"]];
[annotationView setImage:[UIImage imageNamed:@"pin.png"]];
[annotationView layoutIfNeeded];
annotationView.leftCalloutAccessoryView=imgviewIcon;
annotationView.rightCalloutAccessoryView=rightView;
}
return annotationView;
}
-(IBAction)editPoi:(id)sender{
//edit
}
-(IBAction)deletePoi:(id)sender{
//delete
}
I am adding NMView to my view controller
NMView *nv=[[NMView alloc]initWithFrame:CGRectMake(5, 5, 300, 400)];
[self.view addSubview:nv];
Now i am adding annotation to mapview using custom method of NMView,
MKPointAnnotation *point=[[MKPointAnnotation alloc]init];
point.coordinate=pinCoordinate;
point.title=@"test";
[nv addCustomAnnotaion:point];
I have tested it in iOS7 in its working fine:
But in iOS8 on selection of annotation whole NMView goes blank.
Is it bug of iOS 8 or i am doing something wrong ?? Please Help..
EDIT
If i select annotation programatically then also same problem occur in iOS 8.
[mapView selectAnnotation:annot animated:YES];
Somebody else base face this issue ??
iOS8 Blank screen. :
I have uploaded project at below url: https://drive.google.com/file/d/0BxkVP7smm8Z6SnM1UjBxcjc5aDg/view?usp=sharing
Please check it let me know..
I'm not exactly sure why, but it works if you delete this line :
self.translatesAutoresizingMaskIntoConstraints=NO;
Reference: Views disappear when `translatesAutoresizingMaskIntoConstraints` set `NO`