1 files changed, 129 insertions, 0 deletions
diff --git a/platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/offline/MergeOfflineRegionsActivity.kt b/platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/offline/MergeOfflineRegionsActivity.kt
new file mode 100644
index 0000000000..9905733a68
--- /dev/null
+++ b/platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/offline/MergeOfflineRegionsActivity.kt
@@ -0,0 +1,129 @@
+package com.mapbox.mapboxsdk.testapp.activity.offline
+
+import android.Manifest
+import android.content.pm.PackageManager
+import android.os.Bundle
+import android.support.v4.app.ActivityCompat
+import android.support.v4.content.ContextCompat
+import android.support.v7.app.AppCompatActivity
+import android.widget.Toast
+import com.mapbox.mapboxsdk.Mapbox
+import com.mapbox.mapboxsdk.constants.Style
+import com.mapbox.mapboxsdk.log.Logger
+import com.mapbox.mapboxsdk.offline.OfflineManager
+import com.mapbox.mapboxsdk.offline.OfflineRegion
+import com.mapbox.mapboxsdk.testapp.R
+import kotlinx.android.synthetic.main.activity_merge_offline_regions.*
+import java.io.File
+import java.io.FileOutputStream
+
+class MergeOfflineRegionsActivity : AppCompatActivity() {
+  companion object {
+    private const val TEST_DB_FILE_NAME = "offline.db"
+    private const val PERMISSIONS_REQUEST_CODE = 11
+  }
+
+  override fun onCreate(savedInstanceState: Bundle?) {
+    super.onCreate(savedInstanceState)
+    setContentView(R.layout.activity_merge_offline_regions)
+
+    // forcing offline state
+    Mapbox.setConnected(false)
+
+    mapView.setStyleUrl(Style.SATELLITE)
+
+    mapView.onCreate(savedInstanceState)
+    load_region_btn.setOnClickListener {
+      if (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE)
+        != PackageManager.PERMISSION_GRANTED) {
+        ActivityCompat.requestPermissions(this,
+          arrayOf(Manifest.permission.WRITE_EXTERNAL_STORAGE), PERMISSIONS_REQUEST_CODE)
+      } else {
+        mergeDb()
+      }
+    }
+  }
+
+  override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<String>, grantResults: IntArray) {
+    super.onRequestPermissionsResult(requestCode, permissions, grantResults)
+    if (requestCode == PERMISSIONS_REQUEST_CODE) {
+      for (result in grantResults) {
+        if (result != PackageManager.PERMISSION_GRANTED) {
+          finish()
+        }
+      }
+      mergeDb()
+    }
+  }
+
+  private fun mergeDb() {
+    // copy db asset to internal memory
+    copyAsset()
+
+    OfflineManager.getInstance(this).mergeOfflineRegions(
+      this.filesDir.absolutePath + "/" + TEST_DB_FILE_NAME,
+      object : OfflineManager.MergeOfflineRegionsCallback {
+        override fun onMerge(offlineRegions: Array<OfflineRegion>) {
+          mapView.setStyleUrl(Style.SATELLITE)
+          Toast.makeText(
+            this@MergeOfflineRegionsActivity,
+            String.format("Merged %d regions.", offlineRegions.size),
+            Toast.LENGTH_LONG).show()
+        }
+
+        override fun onError(error: String) {
+          Logger.e("MBGL_OFFLINE_DB_MERGE", error)
+        }
+      })
+  }
+
+  private fun copyAsset() {
+    val bufferSize = 1024
+    val assetManager = this.assets
+    val inputStream = assetManager.open(TEST_DB_FILE_NAME)
+    val outputStream = FileOutputStream(File(this.filesDir, TEST_DB_FILE_NAME))
+
+    try {
+      inputStream.copyTo(outputStream, bufferSize)
+    } finally {
+      inputStream.close()
+      outputStream.flush()
+      outputStream.close()
+    }
+  }
+
+  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()
+    mapView.onDestroy()
+  }
+
+  override fun onSaveInstanceState(outState: Bundle) {
+    super.onSaveInstanceState(outState)
+    mapView.onSaveInstanceState(outState)
+  }
+}