Inject a custom view into NavigationView | Navigation SDK | Android

book

Note

This example is a part of the Navigation SDK Examples. You can find the values for all referenced resources in the res directory. For example, see res/values/strings.xml for R.string.* references used in this example.

mapbox_activity_inject_custom_view

github View on GitHub

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto">
 
<com.mapbox.navigation.dropin.NavigationView
android:id="@+id/navigationView"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:accessToken="@string/mapbox_access_token" />
</androidx.constraintlayout.widget.ConstraintLayout>

CustomViewInjectionActivity.kt

github View on GitHub

package com.mapbox.navigation.examples.preview.dropinui
 
import android.os.Bundle
import android.view.ViewGroup
import android.widget.TextView
import androidx.appcompat.app.AppCompatActivity
import androidx.core.view.isVisible
import androidx.transition.Fade
import androidx.transition.Scene
import androidx.transition.TransitionManager
import com.mapbox.navigation.core.MapboxNavigation
import com.mapbox.navigation.core.internal.extensions.flowRoutesUpdated
import com.mapbox.navigation.core.lifecycle.MapboxNavigationObserver
import com.mapbox.navigation.examples.preview.R
import com.mapbox.navigation.examples.preview.databinding.MapboxActivityInjectCustomViewBinding
import com.mapbox.navigation.examples.preview.databinding.MapboxInfoPanelContentLayoutBinding
import com.mapbox.navigation.ui.base.lifecycle.UIBinder
import com.mapbox.navigation.ui.base.lifecycle.UIComponent
 
/**
* The example demonstrates how to inject a new custom view into the bottom of the info panel.
* This custom view will be visible by dragging the info panel only when a route is available.
* When there is no route, the custom view will hide and the info panel cannot be dragged.
*
* Before running the example make sure you have put your access_token in the correct place
* inside [app-preview/src/main/res/values/mapbox_access_token.xml]. If not present then add
* this file at the location mentioned above and add the following content to it
*
* <?xml version="1.0" encoding="utf-8"?>
* <resources xmlns:tools="http://schemas.android.com/tools">
*     <string name="mapbox_access_token"><PUT_YOUR_ACCESS_TOKEN_HERE></string>
* </resources>
*
* The example uses replay location engine to facilitate navigation without physically moving.
*
* How to use the example:
* - Start the example
* - Grant the location permissions if not already granted
* - Long press on the map
* - Press on route overview button to go to route overview state or press in start navigation
* button to go to active guidance state
* - Drag the info panel to see a custom view at the bottom
* - When you go back to free drive the custom view disappears and the info panel cannot be dragged
*/
class CustomViewInjectionActivity : AppCompatActivity() {
 
private lateinit var binding: MapboxActivityInjectCustomViewBinding
 
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
binding = MapboxActivityInjectCustomViewBinding.inflate(layoutInflater)
setContentView(binding.root)
 
binding.navigationView.api.routeReplayEnabled(true)
 
binding.navigationView.customizeViewBinders {
infoPanelContentBinder = MyInfoPanelContentBinder()
}
}
}
 
class MyInfoPanelContentComponent(private val content: TextView) : UIComponent() {
 
override fun onAttached(mapboxNavigation: MapboxNavigation) {
super.onAttached(mapboxNavigation)
mapboxNavigation.flowRoutesUpdated().observe {
content.isVisible = it.navigationRoutes.isNotEmpty()
}
}
}
 
class MyInfoPanelContentBinder : UIBinder {
override fun bind(viewGroup: ViewGroup): MapboxNavigationObserver {
val scene = Scene.getSceneForLayout(
viewGroup,
R.layout.mapbox_info_panel_content_layout,
viewGroup.context
)
TransitionManager.go(scene, Fade())
 
val binding = MapboxInfoPanelContentLayoutBinding.bind(viewGroup)
return MyInfoPanelContentComponent(binding.content)
}
}