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Show and hide layers

Allow the user to toggle the visibility of a CircleLayer on a map.
Android Examples App Available

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.

ShowHideLayersActivity.kt
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"
}
}
この{Type}は役に立ちましたか?