I'm making an iOS app, where I want users to mark locations on a regular basis on a map. The default way to mark location in iOS is to drop a pin either at the center of the map or where the user holds a touch (using the gesture recognizer).
Then to mark the pin to the desired location ACCURATELY, the user holds the pin and can drop it again. If you have done this on an iOS maps app, you will know it is hard to mark a location ACCURATELY, in this manner. It looks cool, but takes some trial and error in my opinion.
If I can help it, I want to make this process smoother and more obvious is my app.
So is there any other way for the user to mark a location on a map, without doing the default pin drag-drop? Any Suggestions welcome :-)
Just an idea... instead of moving the pin, you could move the map with the finger, and keep the pin always in the middle of the mapView (maybe marked with a crosshair or something). Then you can get the coordinates of the Pin using the "center" method of the mapView. That way you don't cover the pin / crosshair with your finger.
I recommend you have a look at the Maps app again. When you hold down your finger on a dropped pin, notice the location of bottom of the pin on the map. The pin actually drops in this exact location, after doing a quick bounce. The pin also sits about 20 above the users finger.
While it's not the most obvious, it's very accurate in my opinion. Enough to query the Geocoder API for an address, or just get coordinates. Keep in mind the GPS has an accuracy of 5-10 meters at the most. Zooming in will allow the user to go even more accurate.
But if this solutions isn't what you want, I'd overlay a point in the centre of the map and make sure it doesn't respond to touches, making it possible to move around the map underneath this point. When touched end, then drop a pin in the middle of the map where the point is. If touches begin again, pop out the pin from the map. I don't think a pin that's already on the map staying in place while the map moves independently will look good.
Related
We are using Google Maps and are implementing a dropped pin feature. We would love to do it in the way AppleMaps do it, where you can move the dropped pin to the correct location:
Is there a way to do so? I guess I would need to add a layer above the map, but without having bound the layer to the map, so that the pin stays in the middle of the view. The map in the layer below would still be tappable, so that I can move it around and place the pin somewhere else this way. Similar to Googles own icon that is visible on the map.
Any concept how to achieve this is welcome.
using target 8.0 MapKit, I would like to define an MKAnnotation (such as a pin, or a custom one) that remains fixed on the center of the map view as the user moves the map around. Once the user stops moving the map, I would like to be able to read the new coordinates of the annotation. How can I do this? This in swift, thank you soo much
You can follow this link to accomplish this task.They are doing something very similar to your requirement. Its quite descriptive. Link
In one of my application I need to move marker on drag and drop, once user drop the pin I need to get the dropped pin location.
This is very basic feature of map but I am surprised that there is no such option in the library.
In native map there is property called "Draggable", is there any equivalent property in the Arcgis ?
With the help of ARCGIS community support, I was able to find the answer for this question.
We have to implement the method mapView:didMoveTapAndHoldAtPoint:mapPoint:features: on AGSMapViewTouchDelegate.
The delegate method gets called every time the user moves his finger while taping and holding the map view. The method also provides the array of features at that location. So in the method you can update the geometry of the features to the new mapPoint.
You can use this sample as a reference. The sample adds a marker if you tap and hold and changes the location of that marker when you move while taping and holding.
Is it possible to animate changes to the coordinates of an annotation on an MKMapView in iOS? Nothing in the API seems to indicate that this is possible, however apps like Uber seem to do this when showing car locations in their map. Perhaps they are calling setCoordinate: multiple times over a short time to give the appearance of animation taking place?
I'm working on an app that shows a couple of places on the map along with the user's current position.
I have two small problems with it:
First off, I want the current location pin to be the default blue circle, but it shows a green pin just like the other locations.
Second problem, whenever I touch the screen, the current location pin drops again. It just can't seem to be steady like the other ones. It's like it's being called whenever I interact with the app.
Make sure you set your mapView delegate to self...that should fix the pin color. Not sure about your other problem
// in the viewDidLoad
[mapView setDelegate:self];
where "mapView" is defined as "IBOutlet MKMapView *mapView;"