MapKit: Need completion handlers for -setRegion:animated: and setCamera:animated:

Originator:futuretap
Number:rdar://15691028 Date Originated:18-Dec-2013 08:04 PM
Status:Closed Resolved:12-May-2014 08:26 PM
Product:iOS SDK Product Version:7.1
Classification:Feature (New) Reproducible:Not Applicable
 
Proposed API:

- (void)setRegion:(MKCoordinateRegion)region animated:(BOOL)animated completion:(void (^)(BOOL finished))completion
- (void)setCamera:(MKMapCamera *)camera animated:(BOOL)animated completion:(void (^)(BOOL finished))completion

The API should behave similarly to the UIView animation APIs where a completion handler would be called as soon as the mapView region or camera animation has been finished. The `finished` BOOL parameter would indicate whether the region animation was finished (YES) or interrupted by some user interaction (NO).

This would be particularly useful to programmatically select annotations after a region update. This way we could make sure that the callout is always visible (and the mapView scrolled prior to displaying the callout if not).

Comments

Engineering believes this issue has been resolved.

This can be accomplished as follows: 

[UIView animateWithDuration:someDuration animations:^{
    [mapView setRegion:someRegion];
} completion:^(BOOL finished) {
    NSLog(@"animation completed");
}];

We are now closing this report.

By futuretap at May 16, 2014, 8:29 a.m. (reply...)

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