WEBVTT

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Now let's call this function in map view model.

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Open map view model.

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Scroll down.

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And here we need to create a list that holds the points of the multiple root.

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Start with the same logic creating multiple root points.

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Equal mutable flow state flow of list of.

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Let log and set the initial value to null.

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Then set the multi root points equals to multi root points dot as state.

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We talked about this pattern in the previous videos and how to create encapsulation and security for

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those lists.

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We need to create a function that adds markers to the list.

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So here add marker to multi root points or multi points root new point.

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It's of type lat long val current list equals to multi points value dot or empty to mutable list.

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Then set the current list at a new point.

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Current list.

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Okay, so this function add new markers to multiple points route.

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Then we need to create a function that calls the get route for multiple markers function.

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So fetch route for multiple markers.

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And this function don't need to take anything in parameters because the parameters are passed here in

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this function.

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So ViewModel scope launch location repository not location repository.

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We need to call the directions repository val route equals to directions repository dot get route.

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For multiple markers we need to specify the origin, waypoints and destination.

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The origin equals to multiple markers.

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We need to get the first value.

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So multi points dot value we need to get the first value of the multi root value dot first or null.

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The second parameter is the Waypoint's multi route points dot value.

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We need to remove the first variable because we specify it as a origin.

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So here we need to remove n equal to one which refers for the origin.

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So here remove origin I want from you guys to focus with me because those are very important step.

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And uh and I want from you to learn the logic, how we think, how we, we create professional applications.

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Okay.

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So here I am removing the origin and removing the destination from the waypoints.

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Okay.

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Then it is not like this.

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Go and create an empty list.

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So here empty list.

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And we need to specify the destination which is multi root points dot value.

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Let's get the last value.

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Okay.

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So so the idea here is to create and get the origin waypoints and destination.

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The origin is the root points.

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The first element the destination is the last element.

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The waypoints are all the points included in multi-root points except the first and the last element.

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This is the logic check.

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If root does not equal to null, we need to use multi-root points.

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Dot value equals to root, otherwise log root is null.

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Okay, in the next video we're going to continue with this function and call it from extended floating

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action button.