Merge branch 'release-boba' into masterupstream/fabian-merge-v4.0.0

# Conflicts:
#	circle.yml
#	include/mbgl/style/expression/let.hpp
#	platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/geometry/LatLngBounds.java
#	platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/MapGestureDetector.java
#	platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/MapKeyListener.java
#	platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/MapView.java
#	platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/MapboxMap.java
#	platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/Projection.java
#	platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/Transform.java
#	platform/android/MapboxGLAndroidSDK/src/test/java/com/mapbox/mapboxsdk/geometry/LatLngBoundsTest.java
#	platform/android/MapboxGLAndroidSDKTestApp/src/main/AndroidManifest.xml
#	platform/android/gradle/dependencies.gradle
#	platform/android/src/example_custom_layer.cpp
#	platform/android/src/geojson/point.cpp
#	platform/darwin/src/NSPredicate+MGLAdditions.mm
#	platform/darwin/test/MGLExpressionTests.mm
#	platform/ios/Mapbox-iOS-SDK-nightly-dynamic.podspec
#	platform/ios/Mapbox-iOS-SDK-symbols.podspec
#	platform/ios/Mapbox-iOS-SDK.podspec
#	platform/ios/app/MBXViewController.m
#	src/mbgl/renderer/layers/render_custom_layer.cpp
#	src/mbgl/style/conversion/filter.cpp
#	src/mbgl/style/expression/interpolate.cpp
#	src/mbgl/style/expression/value.cpp
#	test/style/filter.test.cpp

1 files changed, 48 insertions, 0 deletions

diff --git a/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/Telemetry.java b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/Telemetry.java
new file mode 100644
index 0000000000..e6b93e4b91
--- /dev/null
+++ b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/Telemetry.java
@@ -0,0 +1,48 @@
+package com.mapbox.mapboxsdk.maps;
+
+
+import com.mapbox.android.telemetry.MapboxTelemetry;
+import com.mapbox.android.telemetry.SessionInterval;
+import com.mapbox.android.telemetry.TelemetryEnabler;
+import com.mapbox.mapboxsdk.BuildConfig;
+import com.mapbox.mapboxsdk.Mapbox;
+
+public class Telemetry {
+  static final String TWO_FINGER_TAP = "TwoFingerTap";
+  static final String DOUBLE_TAP = "DoubleTap";
+  static final String SINGLE_TAP = "SingleTap";
+  static final String PAN = "Pan";
+  static final String PINCH = "Pinch";
+  static final String ROTATION = "Rotation";
+  static final String PITCH = "Pitch";
+  private MapboxTelemetry telemetry;
+
+  private Telemetry() {
+    telemetry = new MapboxTelemetry(Mapbox.getApplicationContext(), Mapbox.getAccessToken(),
+      BuildConfig.MAPBOX_EVENTS_USER_AGENT);
+    TelemetryEnabler.State telemetryState = TelemetryEnabler.retrieveTelemetryStateFromPreferences();
+    if (TelemetryEnabler.State.ENABLED.equals(telemetryState)) {
+      telemetry.enable();
+    }
+  }
+
+  public static void initialize() {
+    obtainTelemetry();
+  }
+
+  public static void updateDebugLoggingEnabled(boolean debugLoggingEnabled) {
+    TelemetryHolder.INSTANCE.telemetry.updateDebugLoggingEnabled(debugLoggingEnabled);
+  }
+
+  public static boolean updateSessionIdRotationInterval(SessionInterval interval) {
+    return TelemetryHolder.INSTANCE.telemetry.updateSessionIdRotationInterval(interval);
+  }
+
+  private static class TelemetryHolder {
+    private static final Telemetry INSTANCE = new Telemetry();
+  }
+
+  static MapboxTelemetry obtainTelemetry() {
+    return TelemetryHolder.INSTANCE.telemetry;
+  }
+}