Show and hide layers
This example demonstrates how to show and hide layers with a toggle with the Mapbox Maps SDK for Android.
The code below renders a layer containing a dataset of museums represented by circles. The layer's visibility can then be toggled with a button, referenced as the fabLayerToggle. On the setOnClickListener event for the fabLayerToggle, the function grabs the style and then the layer from the style, were the visibility of the layer is toggled using layer.visibility.
This example code is part of the Maps SDK for Android Examples App, a working Android project available on GitHub. Android developers are encouraged to run the examples app locally to interact with this example in an emulator and explore other features of the Maps SDK.
See our Run the Maps SDK for Android Examples App tutorial for step-by-step instructions.
package com.mapbox.maps.testapp.examples
import android.graphics.Color
import android.os.Bundle
import androidx.appcompat.app.AppCompatActivity
import com.mapbox.maps.Style
import com.mapbox.maps.extension.style.layers.generated.circleLayer
import com.mapbox.maps.extension.style.layers.getLayer
import com.mapbox.maps.extension.style.layers.properties.generated.Visibility
import com.mapbox.maps.extension.style.sources.generated.vectorSource
import com.mapbox.maps.extension.style.style
import com.mapbox.maps.testapp.databinding.ActivityShowHideLayersBinding
/**
* Allow the user to toggle the visibility of a CircleLayer on a map.
*/
class ShowHideLayersActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
val binding = ActivityShowHideLayersBinding.inflate(layoutInflater)
setContentView(binding.root)
binding.mapView.mapboxMap.loadStyle(
style(Style.LIGHT) {
+vectorSource(SOURCE_ID) {
url(SOURCE_URL)
}
+circleLayer(LAYER_ID, SOURCE_ID) {
sourceLayer(SOURCE_LAYER)
visibility(Visibility.VISIBLE)
circleRadius(8.0)
circleColor(Color.argb(255, 55, 148, 179))
}
}
)
binding.fabLayerToggle.setOnClickListener {
binding.mapView.mapboxMap.getStyle {
it.getLayer(LAYER_ID)?.let { layer ->
if (layer.visibility == Visibility.VISIBLE) {
layer.visibility(Visibility.NONE)
} else {
layer.visibility(Visibility.VISIBLE)
}
}
}
}
}
companion object {
private const val SOURCE_ID = "museums_source"
private const val SOURCE_URL = "mapbox://mapbox.2opop9hr"
private const val SOURCE_LAYER = "museum-cusco"
private const val LAYER_ID = "museums"
}
}