From 966bf8824d8d0a33bc0f99d4978a10126fc61b6a Mon Sep 17 00:00:00 2001
From: Ivo van Dongen <info@ivovandongen.nl>
Date: Tue, 22 Aug 2017 16:32:45 +0300
Subject: [android] map snapshotter

---
 .../activity/snapshot/MapSnapshotterActivity.java  | 131 +++++++++++++++++++++
 1 file changed, 131 insertions(+)
 create mode 100644 platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/snapshot/MapSnapshotterActivity.java

(limited to 'platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp')

diff --git a/platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/snapshot/MapSnapshotterActivity.java b/platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/snapshot/MapSnapshotterActivity.java
new file mode 100644
index 0000000000..6b1cb920fc
--- /dev/null
+++ b/platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/snapshot/MapSnapshotterActivity.java
@@ -0,0 +1,131 @@
+package com.mapbox.mapboxsdk.testapp.activity.snapshot;
+
+import android.graphics.Bitmap;
+import android.os.Bundle;
+import android.support.v7.app.AppCompatActivity;
+import android.view.ViewTreeObserver;
+import android.widget.GridLayout;
+import android.widget.ImageView;
+
+import com.mapbox.mapboxsdk.camera.CameraPosition;
+import com.mapbox.mapboxsdk.constants.Style;
+import com.mapbox.mapboxsdk.geometry.LatLng;
+import com.mapbox.mapboxsdk.geometry.LatLngBounds;
+import com.mapbox.mapboxsdk.maps.MapboxMap;
+import com.mapbox.mapboxsdk.snapshotter.MapSnapshotter;
+import com.mapbox.mapboxsdk.testapp.R;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Random;
+
+import timber.log.Timber;
+
+/**
+ * Test activity showing how to use a the {@link com.mapbox.mapboxsdk.snapshotter.MapSnapshotter}
+ */
+public class MapSnapshotterActivity extends AppCompatActivity {
+
+  private GridLayout grid;
+  private List<MapSnapshotter> snapshotters = new ArrayList<>();
+
+
+  @Override
+  protected void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+    setContentView(R.layout.activity_map_snapshotter);
+
+    // Find the grid view and start snapshotting as soon
+    // as the view is measured
+    grid = (GridLayout) findViewById(R.id.snapshot_grid);
+    grid.getViewTreeObserver()
+      .addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
+        @Override
+        public void onGlobalLayout() {
+          //noinspection deprecation
+          grid.getViewTreeObserver().removeGlobalOnLayoutListener(this);
+          addSnapshots();
+        }
+      });
+  }
+
+  private void addSnapshots() {
+    Timber.i("Creating snapshotters");
+
+    for (int row = 0; row < grid.getRowCount(); row++) {
+      for (int column = 0; column < grid.getColumnCount(); column++) {
+        startSnapShot(row, column);
+      }
+    }
+  }
+
+  private void startSnapShot(final int row, final int column) {
+
+    // Define the dimensions
+    MapSnapshotter.Options options = new MapSnapshotter.Options(
+      grid.getMeasuredWidth() / grid.getColumnCount(),
+      grid.getMeasuredHeight() / grid.getRowCount()
+    )
+      // Optionally the pixel ratio
+      .withPixelRatio(1)
+
+      // Optionally the style
+      .withStyle((column + row) % 2 == 0 ? Style.TRAFFIC_DAY : Style.DARK);
+
+    // Optionally the visible region
+    if (row % 2 == 0) {
+      options.withRegion(new LatLngBounds.Builder()
+        .include(new LatLng(randomInRange(-80, 80), randomInRange(-160, 160)))
+        .include(new LatLng(randomInRange(-80, 80), randomInRange(-160, 160)))
+        .build()
+      );
+    }
+
+    // Optionally the camera options
+    if (column % 2 == 0) {
+      options.withCameraPosition(new CameraPosition.Builder()
+        .target(options.getRegion() != null
+          ? options.getRegion().getCenter()
+          : new LatLng(randomInRange(-80, 80), randomInRange(-160, 160)))
+        .bearing(randomInRange(0, 360))
+        .tilt(randomInRange(0, 60))
+        .zoom(randomInRange(0, 20))
+        .build()
+      );
+    }
+
+    MapSnapshotter snapshotter = new MapSnapshotter(MapSnapshotterActivity.this, options);
+
+    snapshotter.start(new MapboxMap.SnapshotReadyCallback() {
+      @Override
+      public void onSnapshotReady(Bitmap snapshot) {
+        Timber.i("Got the snapshot");
+        ImageView imageView = new ImageView(MapSnapshotterActivity.this);
+        imageView.setImageBitmap(snapshot);
+        grid.addView(
+          imageView,
+          new GridLayout.LayoutParams(GridLayout.spec(row), GridLayout.spec(column))
+        );
+      }
+    });
+    snapshotters.add(snapshotter);
+  }
+
+  @Override
+  public void onPause() {
+    super.onPause();
+
+    // Make sure to stop the snapshotters on pause
+    for (MapSnapshotter snapshotter : snapshotters) {
+      snapshotter.cancel();
+    }
+    snapshotters.clear();
+  }
+
+  private static Random random = new Random();
+
+  public static float randomInRange(float min, float max) {
+    return (random.nextFloat() * (max - min)) + min;
+  }
+
+}
-- 
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