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Toggle theme using NavigationView

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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_toggle_theme
<?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" />

<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="@+id/toggleTheme"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="16dp"
android:layout_marginBottom="120dp"
android:src="@drawable/mapbox_ic_customize"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
tools:ignore="ContentDescription"
/>
</androidx.constraintlayout.widget.ConstraintLayout>
ToggleThemeActivity.kt
package com.mapbox.navigation.examples.dropinui.styling

import android.content.res.Configuration
import android.os.Bundle
import androidx.appcompat.app.AppCompatActivity
import androidx.appcompat.app.AppCompatDelegate
import com.mapbox.navigation.examples.databinding.MapboxActivityToggleThemeBinding

/**
* The example demonstrates how `NavigationView` reacts to changes b/w day and night theme.
*
* 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
* - Press on the floating button in the bottom right to toggle between day and night theme
*/
class ToggleThemeActivity : AppCompatActivity() {

private lateinit var binding: MapboxActivityToggleThemeBinding
private var themeMode: CurrentTheme? = null

override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
binding = MapboxActivityToggleThemeBinding.inflate(layoutInflater)
setContentView(binding.root)

binding.navigationView.api.routeReplayEnabled(true)

AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.getDefaultNightMode())

themeMode = when (resources.configuration.uiMode.and(Configuration.UI_MODE_NIGHT_MASK)) {
Configuration.UI_MODE_NIGHT_YES -> {
CurrentTheme(AppCompatDelegate.MODE_NIGHT_YES)
}
else -> {
CurrentTheme(AppCompatDelegate.MODE_NIGHT_NO)
}
}

binding.toggleTheme.setOnClickListener {
if (themeMode?.theme == AppCompatDelegate.MODE_NIGHT_YES) {
AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_NO)
} else {
AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_YES)
}
}
}
}

data class CurrentTheme(val theme: Int)
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