react-native/React/Views/RCTConvert+MapKit.m
Tim Park 8911b72d9e Add Polyline support to MapView
Summary: Per issue #1925, add support for Polyline to MapView.

Briefly, if you have a MapView declared as:

    <MapView
      annotations={this.state.annotations}
      overlays={this.state.overlays}
      style={styles.map}
      region={this.state.region}
      ref="mapView"
    />

then setting

    this.state.overlays = [{
      coordinates: [
        { latitude: 35.5, longitude: -5.5 },
        { latitude: 35.6, longitude: -5.6 },
        ...
      ],
      strokeColor: 'rgba(255, 0, 0, 0.5)',
      lineWidth: 3,
    }];

will draw a red line between the points in locations with a width of 3 and equally blended with the background.
Closes https://github.com/facebook/react-native/pull/4153

Reviewed By: svcscm

Differential Revision: D2697347

Pulled By: nicklockwood

fb-gh-sync-id: a436e4ed8d4e43f2872b39b4694fad7c02de8fe5
2015-11-26 08:54:16 -08:00

83 lines
2.7 KiB
Objective-C

/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#import "RCTConvert+MapKit.h"
#import "RCTConvert+CoreLocation.h"
#import "RCTMapAnnotation.h"
#import "RCTMapOverlay.h"
@implementation RCTConvert(MapKit)
+ (MKCoordinateSpan)MKCoordinateSpan:(id)json
{
json = [self NSDictionary:json];
return (MKCoordinateSpan){
[self CLLocationDegrees:json[@"latitudeDelta"]],
[self CLLocationDegrees:json[@"longitudeDelta"]]
};
}
+ (MKCoordinateRegion)MKCoordinateRegion:(id)json
{
return (MKCoordinateRegion){
[self CLLocationCoordinate2D:json],
[self MKCoordinateSpan:json]
};
}
RCT_ENUM_CONVERTER(MKMapType, (@{
@"standard": @(MKMapTypeStandard),
@"satellite": @(MKMapTypeSatellite),
@"hybrid": @(MKMapTypeHybrid),
}), MKMapTypeStandard, integerValue)
+ (RCTMapAnnotation *)RCTMapAnnotation:(id)json
{
json = [self NSDictionary:json];
RCTMapAnnotation *annotation = [RCTMapAnnotation new];
annotation.coordinate = [self CLLocationCoordinate2D:json];
annotation.title = [RCTConvert NSString:json[@"title"]];
annotation.subtitle = [RCTConvert NSString:json[@"subtitle"]];
annotation.identifier = [RCTConvert NSString:json[@"id"]];
annotation.hasLeftCallout = [RCTConvert BOOL:json[@"hasLeftCallout"]];
annotation.hasRightCallout = [RCTConvert BOOL:json[@"hasRightCallout"]];
annotation.animateDrop = [RCTConvert BOOL:json[@"animateDrop"]];
annotation.tintColor = [RCTConvert UIColor:json[@"tintColor"]];
annotation.image = [RCTConvert UIImage:json[@"image"]];
if (annotation.tintColor && annotation.image) {
annotation.image = [annotation.image imageWithRenderingMode:UIImageRenderingModeAlwaysTemplate];
}
return annotation;
}
RCT_ARRAY_CONVERTER(RCTMapAnnotation)
+ (RCTMapOverlay *)RCTMapOverlay:(id)json
{
json = [self NSDictionary:json];
NSArray<NSDictionary *> *locations = [RCTConvert NSDictionaryArray:json[@"coordinates"]];
CLLocationCoordinate2D coordinates[locations.count];
NSUInteger index = 0;
for (NSDictionary *location in locations) {
coordinates[index++] = [RCTConvert CLLocationCoordinate2D:location];
}
RCTMapOverlay *overlay = [RCTMapOverlay polylineWithCoordinates:coordinates
count:locations.count];
overlay.strokeColor = [RCTConvert UIColor:json[@"strokeColor"]];
overlay.identifier = [RCTConvert NSString:json[@"id"]];
overlay.lineWidth = [RCTConvert CGFloat:json[@"lineWidth"] ?: @1];
return overlay;
}
RCT_ARRAY_CONVERTER(RCTMapOverlay)
@end