topic zoom back and zoom foreward in ArcGIS Runtime SDK for iOS Questions

zoom back and zoom foreward

LucaAlferi1 — Fri, 13 Apr 2012 13:27:27 GMT

Hi
i have a quastion.
How i can create the commands for zoom back and foreward?
some suggestions?

Re: zoom back and zoom foreward

NimeshJarecha — Mon, 16 Apr 2012 15:47:24 GMT

Yes, it is possible to create these commands. Here are the steps you should follow...

1. Create a retain property of NSMutableArray.
2. Listen to the "MapDidEndZooming" notification.
3. Add self.mapView.visibleArea.envelope to the array created in step 1.
4. From "Go Back" and "Go Forward" get the respective extent and zoom.

Regards,
Nimesh

Re: zoom back and zoom foreward

ChristopherEbright — Sat, 11 Dec 2021 14:43:57 GMT

There are also methods of the mapView that you can use, for example, i have a project that has buttons for zoom in and zoom out and i set the actions on those as follows:

-(void)didTapZoomInButton:(id)sender {
    
    [self.mapView zoomIn:YES];

}

-(void)didTapZoomOutButton:(id)sender {
    
    [self.mapView zoomOut:YES];
    
}