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Merge pull request #69 from ngageoint/develop
v2.1.8 release
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109 changes: 109 additions & 0 deletions
109
mapcache/src/main/java/mil/nga/mapcache/load/Downloader.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,109 @@ | ||
| package mil.nga.mapcache.load | ||
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| import android.app.AlertDialog | ||
| import android.os.Looper | ||
| import android.view.LayoutInflater | ||
| import android.view.View | ||
| import android.widget.TextView | ||
| import androidx.appcompat.widget.AppCompatImageView | ||
| import androidx.fragment.app.FragmentActivity | ||
| import mil.nga.geopackage.io.GeoPackageProgress | ||
| import mil.nga.mapcache.R | ||
| import mil.nga.mapcache.viewmodel.GeoPackageViewModel | ||
| import java.net.URL | ||
| import java.util.concurrent.ExecutorService | ||
| import java.util.concurrent.Executors | ||
|
|
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| /** | ||
| * Downloads a GeoPackage via the GeoPackageViewModel, providing feedback and cancel action via | ||
| * an AlertDialog | ||
| */ | ||
| class Downloader(val activity : FragmentActivity) : GeoPackageProgress{ | ||
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| private var max: Int = 0 | ||
| private var progress: Int = 0 | ||
| private val alertDialog: AlertDialog | ||
| private val myExecutor: ExecutorService = Executors.newSingleThreadExecutor() | ||
| private var geoPackageName : String = "" | ||
|
|
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| /** | ||
| * Create the alert dialog | ||
| */ | ||
| init { | ||
| val builder = AlertDialog.Builder(activity, R.style.AppCompatAlertDialogStyle) | ||
|
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| // Create Alert window with basic input text layout | ||
| val inflater = LayoutInflater.from(activity) | ||
| val alertView: View = inflater.inflate(R.layout.basic_label_alert, null) | ||
|
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| // Set dialog view info | ||
| val alertLogo = alertView.findViewById<AppCompatImageView>(R.id.alert_logo) | ||
| alertLogo.setImageResource(R.drawable.material_add_box) | ||
| val titleText = alertView.findViewById<TextView>(R.id.alert_title) | ||
| titleText.setText(R.string.import_geopackage_url) | ||
| val actionLabel = alertView.findViewById<View>(R.id.action_label) as TextView | ||
| actionLabel.setText("Importing GeoPackage") | ||
| actionLabel.visibility = View.VISIBLE | ||
|
|
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| // Cancel button | ||
| builder.setPositiveButton("Cancel") {alertDialog, which -> | ||
| myExecutor.shutdownNow() | ||
| } | ||
|
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| builder.setView(alertView) | ||
| builder.setCancelable(false) | ||
| alertDialog = builder.create() | ||
| } | ||
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| /** | ||
| * Ask the viewmodel to download the given database from the given url. Show the alert dialog | ||
| * and allow cancel | ||
| */ | ||
| fun downloadGeoPackage(viewModel : GeoPackageViewModel, url : String, database : String){ | ||
| val handler = android.os.Handler(Looper.getMainLooper()) | ||
| val theUrl = URL(url) | ||
| var completeMessage : String = "Import failed" | ||
| geoPackageName = database | ||
| alertDialog.show() | ||
| myExecutor.submit { | ||
| try { | ||
| if (!viewModel.importGeoPackage(database, theUrl, this)) { | ||
| completeMessage = "Failed to import GeoPackage '$database' at url '$url'" | ||
| } else { | ||
| completeMessage = "GeoPackage imported" | ||
| } | ||
| } catch (e: InterruptedException){ | ||
| Thread.currentThread().interrupt() | ||
| } | ||
| handler.post { | ||
| alertDialog.dismiss() | ||
| } | ||
| } | ||
| } | ||
|
|
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| /** | ||
| * Sets the max download | ||
| */ | ||
| override fun setMax(max: Int) { | ||
| this.max = max | ||
| } | ||
|
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| /** | ||
| * Add download progress, then update the alert dialog | ||
| */ | ||
| override fun addProgress(progress: Int) { | ||
| this.progress += progress | ||
| val percentComplete = (this.progress / max.toDouble() * 100).toInt() | ||
| val actionLabel = alertDialog.findViewById<View>(R.id.action_label) as TextView | ||
| actionLabel.text = "Importing $geoPackageName: $percentComplete%" | ||
| } | ||
|
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| override fun isActive(): Boolean { | ||
| return true | ||
| } | ||
|
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| override fun cleanupOnCancel(): Boolean { | ||
| return true | ||
| } | ||
| } |
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