# Snapshot Notification

> **Note (legacy): A newer version of the Maps SDK is available**
> 
> This page uses v9.7.1 of the Mapbox Maps SDK. A newer version of the SDK is available. Learn about the latest version, v11.29.0, in the [Maps SDK documentation](https://docs.mapbox.com/android/ja/maps/guides/).

Your browser doesn't support HTML5 video. Open [link to the video](https://docs.mapbox.com/android/ja/android/ja/assets/medias/maps-example-snapshot-notification-activity-6f34f89f6bceda76377377b50986fa3e.mp4).

> **Note**
> 
> This example is a part of the [Mapbox Android Demo app](https://github.com/mapbox/mapbox-android-demo). You can find the values for all referenced resources in the [`res`](https://github.com/mapbox/mapbox-android-demo/tree/master/MapboxAndroidDemo/src/main/res) directory. For example, see [`res/values/activity_strings.xml`](https://github.com/mapbox/mapbox-android-demo/tree/master/MapboxAndroidDemo/src/main/res/values/activity_strings.xml) for `R.string.*` references used in this example. The dependencies can be found [here.](https://github.com/mapbox/mapbox-navigation-android-examples/blob/main/app/build.gradle) The examples use View binding. [See setup documention if necessary.](https://developer.android.com/topic/libraries/view-binding)

Title: `activity_snapshot_notification`

[View on GitHub](https://github.com/mapbox/mapbox-android-demo/tree/master/MapboxAndroidDemo/src/main/res/layout/activity_snapshot_notification.xml)

```xml
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:mapbox="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".examples.snapshot.SnapshotNotificationActivity">

    <com.mapbox.mapboxsdk.maps.MapView
        android:id="@+id/mapView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        mapbox:mapbox_cameraTargetLat="37.431"
        mapbox:mapbox_cameraTargetLng="-120.981"
        mapbox:mapbox_cameraZoom="4"/>

    <TextView
        android:id="@+id/notification_text_view"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom"
        android:background="@color/colorPrimary"
        android:gravity="center"
        android:padding="20dp"
        android:text="@string/tap_on_map_for_notification"
        android:textColor="@color/mapboxWhite"/>
</FrameLayout>
```

**Java**

Title: `SnapshotNotificationActivity.java`

[View on GitHub](https://github.com/mapbox/mapbox-android-demo/tree/master/MapboxAndroidDemo/src/main/java/com/mapbox/mapboxandroiddemo/examples/snapshot/SnapshotNotificationActivity.java)

```java
package com.mapbox.mapboxandroiddemo.examples.snapshot;

import android.app.Notification;
import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.os.Build;
import android.os.Bundle;

import com.mapbox.mapboxandroiddemo.MainActivity;
import com.mapbox.mapboxandroiddemo.R;
import com.mapbox.mapboxsdk.Mapbox;
import com.mapbox.mapboxsdk.geometry.LatLng;
import com.mapbox.mapboxsdk.geometry.LatLngBounds;
import com.mapbox.mapboxsdk.maps.MapView;
import com.mapbox.mapboxsdk.maps.MapboxMap;
import com.mapbox.mapboxsdk.maps.OnMapReadyCallback;
import com.mapbox.mapboxsdk.maps.Style;
import com.mapbox.mapboxsdk.snapshotter.MapSnapshot;
import com.mapbox.mapboxsdk.snapshotter.MapSnapshotter;

import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.NotificationCompat;

import static android.app.PendingIntent.getActivity;

/**
 * Test activity showing how to use a the {@link com.mapbox.mapboxsdk.snapshotter.MapSnapshotter}
 * in a way that utilizes provided bitmaps in native notifications.
 */
public class SnapshotNotificationActivity extends AppCompatActivity implements OnMapReadyCallback,
  MapboxMap.OnMapClickListener {

  private MapView mapView;
  private MapSnapshotter mapSnapshotter;
  private MapboxMap mapboxMap;
  private NotificationManager notificationManager;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    // Mapbox access token is configured here. This needs to be called either in your application
    // object or in the same activity which contains the mapview.
    Mapbox.getInstance(this, getString(R.string.access_token));

    // This contains the MapView in XML and needs to be called after the access token is configured.
    setContentView(R.layout.activity_snapshot_notification);

    mapView = findViewById(R.id.mapView);
    mapView.onCreate(savedInstanceState);

    // Set a callback for when MapboxMap is ready to be used
    mapView.getMapAsync(this);
  }

  @Override
  public void onMapReady(@NonNull final MapboxMap mapboxMap) {
    SnapshotNotificationActivity.this.mapboxMap = mapboxMap;
    mapboxMap.setStyle(Style.MAPBOX_STREETS, new Style.OnStyleLoaded() {
      @Override
      public void onStyleLoaded(@NonNull Style style) {
        mapboxMap.addOnMapClickListener(SnapshotNotificationActivity.this);
      }
    });
  }

  @Override
  public boolean onMapClick(@NonNull LatLng point) {
    startSnapShot(
      mapboxMap.getProjection().getVisibleRegion().latLngBounds,
      mapView.getMeasuredHeight(),
      mapView.getMeasuredWidth());
    return true;
  }

  /**
   * Creates bitmap from given parameters, and creates a notification with that bitmap
   *
   * @param latLngBounds of map
   * @param height       of map
   * @param width        of map
   */
  private void startSnapShot(LatLngBounds latLngBounds, int height, int width) {
    mapboxMap.getStyle(new Style.OnStyleLoaded() {
      @Override
      public void onStyleLoaded(@NonNull Style style) {
        if (mapSnapshotter == null) {
          // Initialize snapshotter with map dimensions and given bounds
          MapSnapshotter.Options options =
            new MapSnapshotter.Options(width, height)
              .withCameraPosition(mapboxMap.getCameraPosition())
              .withStyle(style.getUri())
              .withRegion(latLngBounds);

          mapSnapshotter = new MapSnapshotter(SnapshotNotificationActivity.this, options);
        } else {
          // Reuse pre-existing MapSnapshotter instance
          mapSnapshotter.setSize(width, height);
          mapSnapshotter.setRegion(latLngBounds);
        }
        mapSnapshotter.start(new MapSnapshotter.SnapshotReadyCallback() {
          @Override
          public void onSnapshotReady(MapSnapshot snapshot) {
            createNotification(snapshot.getBitmap());
          }
        });
      }
    });
  }

  /**
   * Creates a notification with given bitmap as a large icon
   *
   * @param bitmap to set as large icon
   */
  private void createNotification(Bitmap bitmap) {
    final int notifyId = 1002;
    String id = "channel_id";
    if (notificationManager == null) {
      notificationManager =
        (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
    }
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
      if (notificationManager != null) {
        NotificationChannel notificationChannel = notificationManager.getNotificationChannel(id);
        if (notificationChannel == null) {
          notificationChannel = new NotificationChannel(id, "channel_name", NotificationManager.IMPORTANCE_HIGH);
          notificationChannel.setDescription("channel_description");
          notificationManager.createNotificationChannel(notificationChannel);
        }
      }
    }
    Intent intent = new Intent(this, MainActivity.class)
      .setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
    NotificationCompat.Builder builder = new NotificationCompat.Builder(this, id)
      .setContentTitle("content")
      .setSmallIcon(R.drawable.ic_circle)
      .setContentTitle(getString(R.string.activity_image_generator_snapshot_notification_title))
      .setContentText(getString(R.string.activity_image_generator_snapshot_notification_description))
      .setContentIntent(getActivity(this, 0, intent, 0))
      .setLargeIcon(bitmap);
    Notification notification = builder.build();
    notificationManager.notify(notifyId, notification);
  }

  @Override
  public void onResume() {
    super.onResume();
    mapView.onResume();
  }

  @Override
  protected void onStart() {
    super.onStart();
    mapView.onStart();
  }

  @Override
  protected void onStop() {
    super.onStop();
    mapView.onStop();
  }

  @Override
  public void onPause() {
    super.onPause();
    mapView.onPause();

    // Make sure to stop the snapshotter on pause if it exists
    if (mapSnapshotter != null) {
      mapSnapshotter.cancel();
    }
  }

  @Override
  public void onSaveInstanceState(Bundle outState) {
    super.onSaveInstanceState(outState);
    mapView.onSaveInstanceState(outState);
  }

  @Override
  public void onLowMemory() {
    super.onLowMemory();
    mapView.onLowMemory();
  }

  @Override
  protected void onDestroy() {
    super.onDestroy();
    if (mapboxMap != null) {
      mapboxMap.removeOnMapClickListener(this);
    }
    mapView.onDestroy();
  }
}
```