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package com.mapbox.mapboxsdk.testapp.activity.offline
import android.os.Bundle
import androidx.appcompat.app.AppCompatActivity
import android.widget.Toast
import com.mapbox.mapboxsdk.Mapbox
import com.mapbox.mapboxsdk.log.Logger
import com.mapbox.mapboxsdk.maps.Style
import com.mapbox.mapboxsdk.offline.OfflineManager
import com.mapbox.mapboxsdk.offline.OfflineRegion
import com.mapbox.mapboxsdk.storage.FileSource
import com.mapbox.mapboxsdk.testapp.R
import com.mapbox.mapboxsdk.testapp.utils.FileUtils
import kotlinx.android.synthetic.main.activity_merge_offline_regions.*
class MergeOfflineRegionsActivity : AppCompatActivity() {
companion object {
private const val LOG_TAG = "Mbgl-MergeOfflineRegionsActivity"
private const val TEST_DB_FILE_NAME = "offline_test.db"
private const val TEST_STYLE = Style.SATELLITE
}
private val onFileCopiedListener = object : FileUtils.OnFileCopiedFromAssetsListener {
override fun onFileCopiedFromAssets() {
Toast.makeText(
this@MergeOfflineRegionsActivity,
String.format("OnFileCopied."),
Toast.LENGTH_LONG).show()
mergeDb()
}
override fun onError() {
Toast.makeText(
this@MergeOfflineRegionsActivity,
String.format("Error copying DB file."),
Toast.LENGTH_LONG).show()
}
}
private val onRegionMergedListener = object : OfflineManager.MergeOfflineRegionsCallback {
override fun onMerge(offlineRegions: Array<OfflineRegion>) {
mapView.getMapAsync {
it.setStyle(Style.Builder().fromUri(TEST_STYLE))
}
Toast.makeText(
this@MergeOfflineRegionsActivity,
String.format("Merged %d regions.", offlineRegions.size),
Toast.LENGTH_LONG).show()
}
override fun onError(error: String) {
Toast.makeText(
this@MergeOfflineRegionsActivity,
String.format("Offline DB merge error."),
Toast.LENGTH_LONG).show()
Logger.e(LOG_TAG, error)
}
}
/**
* Since we expect from the results of the offline merge callback to interact with the hosting activity,
* we need to ensure that we are not interacting with a destroyed activity.
*/
private class MergeCallback(private var activityCallback: OfflineManager.MergeOfflineRegionsCallback?) : OfflineManager.MergeOfflineRegionsCallback {
override fun onMerge(offlineRegions: Array<out OfflineRegion>?) {
activityCallback?.onMerge(offlineRegions)
}
override fun onError(error: String?) {
activityCallback?.onError(error)
}
fun onActivityDestroy() {
activityCallback = null
}
}
private val mergeCallback = MergeCallback(onRegionMergedListener)
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_merge_offline_regions)
// forcing offline state
Mapbox.setConnected(false)
mapView.onCreate(savedInstanceState)
load_region_btn.setOnClickListener {
copyAsset()
}
mapView.getMapAsync {
it.isDebugActive = true
it.setStyle(Style.Builder().fromUri(TEST_STYLE))
}
}
private fun copyAsset() {
// copy db asset to internal memory
FileUtils.CopyFileFromAssetsTask(this, onFileCopiedListener).execute(TEST_DB_FILE_NAME, FileSource.getResourcesCachePath(this))
}
private fun mergeDb() {
OfflineManager.getInstance(this).mergeOfflineRegions(
FileSource.getResourcesCachePath(this) + "/" + TEST_DB_FILE_NAME, mergeCallback
)
}
override fun onStart() {
super.onStart()
mapView.onStart()
}
override fun onResume() {
super.onResume()
mapView.onResume()
}
override fun onPause() {
super.onPause()
mapView.onPause()
}
override fun onStop() {
super.onStop()
mapView.onStop()
}
override fun onLowMemory() {
super.onLowMemory()
mapView.onLowMemory()
}
override fun onDestroy() {
super.onDestroy()
mergeCallback.onActivityDestroy()
mapView.onDestroy()
// restoring connectivity state
Mapbox.setConnected(null)
}
override fun onSaveInstanceState(outState: Bundle) {
super.onSaveInstanceState(outState)
mapView.onSaveInstanceState(outState)
}
}
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