Merge "Expose Circle and Polygon as SystemApi" (ac2b27ae) · Commits · e / os / android_frameworks_base

api/system-current.txt

+13 −0

Original line number	Diff line number	Diff line
		@@ -7937,6 +7937,13 @@ package android.telephony {
		public class CbGeoUtils {
		}

		public static class CbGeoUtils.Circle implements android.telephony.CbGeoUtils.Geometry {
		ctor public CbGeoUtils.Circle(@NonNull android.telephony.CbGeoUtils.LatLng, double);
		method public boolean contains(@NonNull android.telephony.CbGeoUtils.LatLng);
		method @NonNull public android.telephony.CbGeoUtils.LatLng getCenter();
		method public double getRadius();
		}

		public static interface CbGeoUtils.Geometry {
		method public boolean contains(@NonNull android.telephony.CbGeoUtils.LatLng);
		}
		@@ -7949,6 +7956,12 @@ package android.telephony {
		field public final double lng;
		}

		public static class CbGeoUtils.Polygon implements android.telephony.CbGeoUtils.Geometry {
		ctor public CbGeoUtils.Polygon(@NonNull java.util.List<android.telephony.CbGeoUtils.LatLng>);
		method public boolean contains(@NonNull android.telephony.CbGeoUtils.LatLng);
		method @NonNull public java.util.List<android.telephony.CbGeoUtils.LatLng> getVertices();
		}

		public class CellBroadcastIntents {
		method public static void sendOrderedBroadcastForBackgroundReceivers(@NonNull android.content.Context, @Nullable android.os.UserHandle, @NonNull android.content.Intent, @Nullable String, @Nullable String, @Nullable android.content.BroadcastReceiver, @Nullable android.os.Handler, int, @Nullable String, @Nullable android.os.Bundle);
		}

telephony/java/android/telephony/CbGeoUtils.java

+53 −23

Original line number	Diff line number	Diff line
		@@ -27,10 +27,15 @@ import java.util.stream.Collectors;


		/**
		* This utils class is specifically used for geo-targeting of CellBroadcast messages.
		* This utils class is used for geo-fencing of CellBroadcast messages and is used by the cell
		* broadcast module.
		*
		* The coordinates used by this utils class are latitude and longitude, but some algorithms in this
		* class only use them as coordinates on plane, so the calculation will be inaccurate. So don't use
		* this class for anything other then geo-targeting of cellbroadcast messages.
		*
		* More information regarding cell broadcast geo-fencing logic is laid out in 3GPP TS 23.041 and
		* ATIS-0700041.
		* @hide
		*/
		@SystemApi
		@@ -81,7 +86,7 @@ public class CbGeoUtils {
		/** @hide */
		private static final String POLYGON_SYMBOL = "polygon";

		/** Point represent by (latitude, longitude). */
		/** A point represented by (latitude, longitude). */
		public static class LatLng {
		public final double lat;
		public final double lng;
		@@ -97,8 +102,8 @@ public class CbGeoUtils {
		}

		/**
		* @param p the point use to calculate the subtraction result.
		* @return the result of this point subtract the given point {@code p}.
		* @param p the point to subtract
		* @return the result of the subtraction
		*/
		@NonNull
		public LatLng subtract(@NonNull LatLng p) {
		@@ -106,9 +111,9 @@ public class CbGeoUtils {
		}

		/**
		* Calculate the distance in meter between this point and the given point {@code p}.
		* @param p the point use to calculate the distance.
		* @return the distance in meter.
		* Calculate the distance in meters between this point and the given point {@code p}.
		* @param p the point used to calculate the distance.
		* @return the distance in meters.
		*/
		public double distance(@NonNull LatLng p) {
		double dlat = Math.sin(0.5 * Math.toRadians(lat - p.lat));
		@@ -125,8 +130,9 @@ public class CbGeoUtils {
		}

		/**
		* The class represents a simple polygon with at least 3 points.
		* @hide
		* A class representing a simple polygon with at least 3 points. This is used for geo-fencing
		* logic with cell broadcasts. More information regarding cell broadcast geo-fencing logic is
		* laid out in 3GPP TS 23.041 and ATIS-0700041.
		*/
		public static class Polygon implements Geometry {
		/**
		@@ -145,7 +151,7 @@ public class CbGeoUtils {
		* connected to form an edge of the polygon. The polygon has at least 3 vertices, and the
		* last vertices and the first vertices must be adjacent.
		*
		* The longitude difference in the vertices should be less than 180 degree.
		* The longitude difference in the vertices should be less than 180 degrees.
		*/
		public Polygon(@NonNull List<LatLng> vertices) {
		mVertices = vertices;
		@@ -164,19 +170,24 @@ public class CbGeoUtils {
		.collect(Collectors.toList());
		}

		public List<LatLng> getVertices() {
		/**
		* Return the list of vertices which compose the polygon.
		*/
		public @NonNull List<LatLng> getVertices() {
		return mVertices;
		}

		/**
		* Check if the given point {@code p} is inside the polygon. This method counts the number
		* of times the polygon winds around the point P, A.K.A "winding number". The point is
		* outside only when this "winding number" is 0.
		* Check if the given LatLng is inside the polygon.
		*
		* If a point is on the edge of the polygon, it is also considered to be inside the polygon.
		* If a LatLng is on the edge of the polygon, it is also considered to be inside the
		* polygon.
		*/
		@Override
		public boolean contains(LatLng latLng) {
		public boolean contains(@NonNull LatLng latLng) {
		// This method counts the number of times the polygon winds around the point P, A.K.A
		// "winding number". The point is outside only when this "winding number" is 0.

		Point p = convertAndScaleLatLng(latLng);

		int n = mScaledVertices.size();
		@@ -245,6 +256,7 @@ public class CbGeoUtils {
		return a.x * b.y - a.y * b.x;
		}

		/** @hide */
		static final class Point {
		public final double x;
		public final double y;
		@@ -270,29 +282,47 @@ public class CbGeoUtils {
		}

		/**
		* The class represents a circle.
		* @hide
		* A class represents a {@link Geometry} in the shape of a Circle. This is used for handling
		* geo-fenced cell broadcasts. More information regarding cell broadcast geo-fencing logic is
		* laid out in 3GPP TS 23.041 and ATIS-0700041.
		*/
		public static class Circle implements Geometry {
		private final LatLng mCenter;
		private final double mRadiusMeter;

		public Circle(LatLng center, double radiusMeter) {
		/**
		* Construct a Circle given a center point and a radius in meters.
		*
		* @param center the latitude and longitude of the center of the circle
		* @param radiusInMeters the radius of the circle in meters
		*/
		public Circle(@NonNull LatLng center, double radiusInMeters) {
		this.mCenter = center;
		this.mRadiusMeter = radiusMeter;
		this.mRadiusMeter = radiusInMeters;
		}

		public LatLng getCenter() {
		/**
		* Return the latitude and longitude of the center of the circle;
		*/
		public @NonNull LatLng getCenter() {
		return mCenter;
		}

		/**
		* Return the radius of the circle in meters.
		*/
		public double getRadius() {
		return mRadiusMeter;
		}

		/**
		* Check if the given LatLng is inside the circle.
		*
		* If a LatLng is on the edge of the circle, it is also considered to be inside the circle.
		*/
		@Override
		public boolean contains(LatLng p) {
		return mCenter.distance(p) <= mRadiusMeter;
		public boolean contains(@NonNull LatLng latLng) {
		return mCenter.distance(latLng) <= mRadiusMeter;
		}

		@Override