When to call delegate for events on gmsmapview?

When to call delegate for events on gmsmapview?

Delegate for events on GMSMapView. Called before the camera on the map changes, either due to a gesture, animation (e.g., by a user tapping on the “My Location” button) or by being updated explicitly via the camera or a zero-length animation on layer.

How to instantiate a map in gmsmapview?

The map should be instantiated via the convenience constructor [ GMSMapView mapWithFrame:camera:]. It may also be created with the default [ [ GMSMapView alloc] initWithFrame:] method (wherein its camera will be set to a default location).

Can a gmsmapview be read from another thread?

GMSMapView can only be read and modified from the main thread, similar to all UIKit objects. Calling these methods from another thread will result in an exception or undefined behavior. Convenience initializer that builds and returns a GMSMapView, with a frame and camera target. Tells this map to power up its renderer.

Where do you find the main idea in a paragraph?

The author can locate the main idea in different places within a paragraph. The main idea is usually a sentence, and it is usually the first sentence. The writer then uses the rest of the paragraph to support the main idea. Let’s use the paragraph below as an example.

How do you remove a marker from a map?

You can remove a marker from the map by setting the map property of the GMSMarker to nil. Alternatively, you can remove all of the overlays (including markers) currently on the map by calling the GMSMapView clear method.

How do you add a marker to a map?

To add a marker, create a GMSMarker object that includes a position and title, and set its map. The following example demonstrates how to add a marker to an existing GMSMapView object. The marker is created at coordinates 10,10, and displays the string “Hello world” in an info window when clicked.

Can you change the orientation of a marker on a map?

Marker icons are normally drawn oriented against the device’s screen rather than the map’s surface, so rotating, tilting or zooming the map does not necessarily change the orientation of the marker. You can set the orientation of a marker to be flat against the earth.