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chore: fixed algorithm samples #1579

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Merged
merged 2 commits into from
Sep 2, 2025
Merged

chore: fixed algorithm samples #1579

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chore: fixed algorithm samples
kikoso Sep 1, 2025
060c0d9
Removed
kikoso Sep 1, 2025
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34 changes: 29 additions & 5 deletions demo/src/main/java/com/google/maps/android/utils/demo/ClusterAlgorithmsDemoActivity.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -16,15 +16,16 @@

package com.google.maps.android.utils.demo

import android.os.Build
import android.util.DisplayMetrics
import android.view.View
import android.view.WindowManager
import android.widget.AdapterView
import android.widget.ArrayAdapter
import android.widget.Spinner
import com.google.android.gms.maps.CameraUpdateFactory
import com.google.android.gms.maps.MapView
import com.google.android.gms.maps.model.LatLng
import com.google.maps.android.clustering.ClusterManager
import com.google.maps.android.clustering.algo.AbstractAlgorithm
import com.google.maps.android.clustering.algo.CentroidNonHierarchicalDistanceBasedAlgorithm
import com.google.maps.android.clustering.algo.ContinuousZoomEuclideanCentroidAlgorithm
import com.google.maps.android.clustering.algo.GridBasedAlgorithm
Expand All @@ -40,7 +41,6 @@ import kotlin.random.Random
class ClusterAlgorithmsDemoActivity : BaseDemoActivity() {

private var clusterManager: ClusterManager<MyItem>? = null
private lateinit var mapView: MapView

override fun getLayoutId(): Int {
return R.layout.activity_cluster_algorithms_demo
Expand Down Expand Up @@ -85,6 +85,28 @@ class ClusterAlgorithmsDemoActivity : BaseDemoActivity() {
* Sets up the ClusterManager with the chosen algorithm and populates it with items.
*/
private fun setupClusterer(algorithmPosition: Int) {

val windowManager = getSystemService(WINDOW_SERVICE) as WindowManager
val metrics = DisplayMetrics()
val width: Int
val height: Int

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
// For devices with Android 11 (API 30) and above
val windowMetrics = windowManager.currentWindowMetrics
width = windowMetrics.bounds.width()
height = windowMetrics.bounds.height()
metrics.density = resources.displayMetrics.density
} else {
// For devices below Android 11
windowManager.defaultDisplay.getMetrics(metrics)
width = metrics.widthPixels
height = metrics.heightPixels
}

val widthDp = (width / metrics.density).toInt()
val heightDp = (height / metrics.density).toInt()

// 1. Clear the map and previous cluster manager
map.clear()

Expand All @@ -96,9 +118,11 @@ class ClusterAlgorithmsDemoActivity : BaseDemoActivity() {
1 -> GridBasedAlgorithm()
2 -> NonHierarchicalDistanceBasedAlgorithm()
3 -> CentroidNonHierarchicalDistanceBasedAlgorithm()
4 -> NonHierarchicalViewBasedAlgorithm(mapView.width, mapView.height)
4 -> NonHierarchicalViewBasedAlgorithm(widthDp, heightDp)
5 -> ContinuousZoomEuclideanCentroidAlgorithm()
else -> error("Unsupported algorithm position: $algorithmPosition")
else -> {
GridBasedAlgorithm()
}
}

// 4. Point the map's listeners to the ClusterManager
Expand Down