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[android] - optimise CameraUpdateFactory#newLatLngBounds to use camera position tilt and bearing values (#14953)

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This commit is contained in:
Tobrun
2019-06-19 19:51:44 +02:00
committed by GitHub
parent 24df7fe5f5
commit 18885def71
2 changed files with 213 additions and 12 deletions
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81
platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/camera/CameraUpdateFactory.java
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@@ -4,13 +4,13 @@ import android.graphics.Point;
import android.graphics.PointF;
import android.support.annotation.IntDef;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import com.mapbox.mapboxsdk.geometry.LatLng;
import com.mapbox.mapboxsdk.geometry.LatLngBounds;
import com.mapbox.mapboxsdk.maps.MapboxMap;
import com.mapbox.mapboxsdk.maps.Projection;
import com.mapbox.mapboxsdk.maps.UiSettings;
import junit.framework.Assert;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
@@ -45,9 +45,11 @@ public final class CameraUpdateFactory {
/**
* Returns a CameraUpdate that transforms the camera such that the specified
* latitude/longitude bounds are centered on screen at the greatest possible zoom level.
* latitude/longitude bounds are centered on screen at the greatest possible zoom level while maintaining
* current camera position bearing and tilt values.
* <p>
* You can specify padding, in order to inset the bounding box from the map view's edges.
* The returned CameraUpdate has a bearing of 0 and a tilt of 0.
* </p>
*
* @param bounds Bounds to match Camera position with
* @param padding Padding added to the bounds
@@ -59,9 +61,29 @@ public final class CameraUpdateFactory {
/**
* Returns a CameraUpdate that transforms the camera such that the specified
* latitude/longitude bounds are centered on screen at the greatest possible zoom level.
* latitude/longitude bounds are centered on screen at the greatest possible zoom level while using
* provided bearing and tilt values.
* <p>
* You can specify padding, in order to inset the bounding box from the map view's edges.
* The returned CameraUpdate has a bearing of 0 and a tilt of 0.
* </p>
*
* @param bounds Bounds to match Camera position with
* @param bearing Bearing to take in account when generating the bounds
* @param tilt Tilt to take in account when generating the bounds
* @param padding Padding added to the bounds
* @return CameraUpdate Final Camera Position
*/
public static CameraUpdate newLatLngBounds(@NonNull LatLngBounds bounds, double bearing, double tilt, int padding) {
return newLatLngBounds(bounds, bearing, tilt, padding, padding, padding, padding);
}
/**
* Returns a CameraUpdate that transforms the camera such that the specified
* latitude/longitude bounds are centered on screen at the greatest possible zoom level while maintaining
* current camera position bearing and tilt values.
* <p>
* You can specify padding, in order to inset the bounding box from the map view's edges.
* </p>
*
* @param bounds Bounds to base the Camera position out of
* @param paddingLeft Padding left of the bounds
@@ -72,7 +94,29 @@ public final class CameraUpdateFactory {
*/
public static CameraUpdate newLatLngBounds(@NonNull LatLngBounds bounds, int paddingLeft, int paddingTop,
int paddingRight, int paddingBottom) {
return new CameraBoundsUpdate(bounds, paddingLeft, paddingTop, paddingRight, paddingBottom);
return new CameraBoundsUpdate(bounds, null, null, paddingLeft, paddingTop, paddingRight, paddingBottom);
}
/**
* Returns a CameraUpdate that transforms the camera such that the specified
* latitude/longitude bounds are centered on screen at the greatest possible zoom level while using
* provided bearing and tilt values.
* <p>
* You can specify padding, in order to inset the bounding box from the map view's edges.
* </p>
*
* @param bounds Bounds to base the Camera position out of
* @param bearing Bearing to take in account when generating the bounds
* @param tilt Tilt to take in account when generating the bounds
* @param paddingLeft Padding left of the bounds
* @param paddingTop Padding top of the bounds
* @param paddingRight Padding right of the bounds
* @param paddingBottom Padding bottom of the bounds
* @return CameraUpdate Final Camera Position
*/
public static CameraUpdate newLatLngBounds(@NonNull LatLngBounds bounds, double bearing, double tilt,
int paddingLeft, int paddingTop, int paddingRight, int paddingBottom) {
return new CameraBoundsUpdate(bounds, bearing, tilt, paddingLeft, paddingTop, paddingRight, paddingBottom);
}
/**
@@ -253,16 +297,21 @@ public final class CameraUpdateFactory {
static final class CameraBoundsUpdate implements CameraUpdate {
private LatLngBounds bounds;
private int[] padding;
private final LatLngBounds bounds;
private final int[] padding;
private final Double bearing;
private final Double tilt;
CameraBoundsUpdate(LatLngBounds bounds, int[] padding) {
CameraBoundsUpdate(LatLngBounds bounds, Double bearing, Double tilt, int[] padding) {
this.bounds = bounds;
this.padding = padding;
this.bearing = bearing;
this.tilt = tilt;
}
CameraBoundsUpdate(LatLngBounds bounds, int paddingLeft, int paddingTop, int paddingRight, int paddingBottom) {
this(bounds, new int[] {paddingLeft, paddingTop, paddingRight, paddingBottom});
CameraBoundsUpdate(LatLngBounds bounds, Double bearing, Double tilt, int paddingLeft,
int paddingTop, int paddingRight, int paddingBottom) {
this(bounds, bearing, tilt, new int[] {paddingLeft, paddingTop, paddingRight, paddingBottom});
}
public LatLngBounds getBounds() {
@@ -275,7 +324,15 @@ public final class CameraUpdateFactory {
@Override
public CameraPosition getCameraPosition(@NonNull MapboxMap mapboxMap) {
return mapboxMap.getCameraForLatLngBounds(bounds, padding);
if (bearing == null && tilt == null) {
// use current camera position tilt and bearing
return mapboxMap.getCameraForLatLngBounds(bounds, padding);
} else {
// use provided tilt and bearing
Assert.assertNotNull(bearing);
Assert.assertNotNull(tilt);
return mapboxMap.getCameraForLatLngBounds(bounds, padding, bearing, tilt);
}
}
@Override