f1200d47db
Assigned unique IDs to localizable English strings in code. Made iosapp non-localizable. For the time being, it isn’t worth the trouble to localize more strings for this demo application than for the SDK itself.
754 lines
28 KiB
Objective-C
754 lines
28 KiB
Objective-C
#import "MBXViewController.h"
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#import "MBXAppDelegate.h"
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#import "MBXCustomCalloutView.h"
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#import "MBXOfflinePacksTableViewController.h"
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#import <Mapbox/Mapbox.h>
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#import <CoreLocation/CoreLocation.h>
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#import <OpenGLES/ES2/gl.h>
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#import <objc/runtime.h>
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static const CLLocationCoordinate2D WorldTourDestinations[] = {
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{ .latitude = 38.9131982, .longitude = -77.0325453144239 },
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{ .latitude = 37.7757368, .longitude = -122.4135302 },
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{ .latitude = 12.9810816, .longitude = 77.6368034 },
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{ .latitude = -13.15589555, .longitude = -74.2178961777998 },
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};
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@interface MBXDroppedPinAnnotation : MGLPointAnnotation
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@end
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@implementation MBXDroppedPinAnnotation
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@end
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@interface MBXCustomCalloutAnnotation : MGLPointAnnotation
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@end
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@implementation MBXCustomCalloutAnnotation
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@end
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@interface MBXViewController () <UIActionSheetDelegate, MGLMapViewDelegate>
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@property (nonatomic) IBOutlet MGLMapView *mapView;
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@property (nonatomic) NSInteger styleIndex;
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@end
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@implementation MBXViewController
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{
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BOOL _isTouringWorld;
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BOOL _isShowingCustomStyleLayer;
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}
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#pragma mark - Setup
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+ (void)initialize
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{
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if (self == [MBXViewController class])
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{
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[[NSUserDefaults standardUserDefaults] registerDefaults:@{
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@"MBXUserTrackingMode": @(MGLUserTrackingModeNone),
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@"MBXShowsUserLocation": @NO,
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@"MBXDebug": @NO,
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}];
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}
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}
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- (void)viewDidLoad
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{
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[super viewDidLoad];
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[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(saveState:) name:UIApplicationDidEnterBackgroundNotification object:nil];
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[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(restoreState:) name:UIApplicationWillEnterForegroundNotification object:nil];
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[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(saveState:) name:UIApplicationWillTerminateNotification object:nil];
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[self restoreState:nil];
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}
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- (void)viewDidAppear:(BOOL)animated
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{
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[super viewDidAppear:animated];
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if ([MGLAccountManager accessToken].length)
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{
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self.styleIndex = -1;
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[self cycleStyles:self];
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}
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else
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{
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UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"Access Token" message:@"Enter your Mapbox access token to load Mapbox-hosted tiles and styles:" preferredStyle:UIAlertControllerStyleAlert];
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[alertController addTextFieldWithConfigurationHandler:^(UITextField * _Nonnull textField)
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{
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textField.keyboardType = UIKeyboardTypeURL;
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textField.autocorrectionType = UITextAutocorrectionTypeNo;
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textField.autocapitalizationType = UITextAutocapitalizationTypeNone;
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}];
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[alertController addAction:[UIAlertAction actionWithTitle:@"Cancel" style:UIAlertActionStyleCancel handler:nil]];
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UIAlertAction *OKAction = [UIAlertAction actionWithTitle:@"OK" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action)
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{
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UITextField *textField = alertController.textFields.firstObject;
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NSString *accessToken = textField.text;
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[[NSUserDefaults standardUserDefaults] setObject:accessToken forKey:MBXMapboxAccessTokenDefaultsKey];
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[MGLAccountManager setAccessToken:accessToken];
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self.styleIndex = -1;
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[self cycleStyles:self];
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[self.mapView reloadStyle:self];
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}];
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[alertController addAction:OKAction];
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if ([alertController respondsToSelector:@selector(setPreferredAction:)])
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{
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alertController.preferredAction = OKAction;
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}
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[self presentViewController:alertController animated:YES completion:nil];
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}
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}
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- (void)saveState:(__unused NSNotification *)notification
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{
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NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
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NSData *archivedCamera = [NSKeyedArchiver archivedDataWithRootObject:self.mapView.camera];
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[defaults setObject:archivedCamera forKey:@"MBXCamera"];
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[defaults setInteger:self.mapView.userTrackingMode forKey:@"MBXUserTrackingMode"];
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[defaults setBool:self.mapView.showsUserLocation forKey:@"MBXShowsUserLocation"];
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[defaults setInteger:self.mapView.debugMask forKey:@"MBXDebugMask"];
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[defaults synchronize];
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}
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- (void)restoreState:(__unused NSNotification *)notification
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{
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NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
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NSData *archivedCamera = [defaults objectForKey:@"MBXCamera"];
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MGLMapCamera *camera = archivedCamera ? [NSKeyedUnarchiver unarchiveObjectWithData:archivedCamera] : nil;
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if (camera)
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{
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self.mapView.camera = camera;
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}
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NSInteger uncheckedTrackingMode = [defaults integerForKey:@"MBXUserTrackingMode"];
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if (uncheckedTrackingMode >= 0 &&
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(NSUInteger)uncheckedTrackingMode >= MGLUserTrackingModeNone &&
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(NSUInteger)uncheckedTrackingMode <= MGLUserTrackingModeFollowWithCourse)
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{
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self.mapView.userTrackingMode = (MGLUserTrackingMode)uncheckedTrackingMode;
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}
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self.mapView.showsUserLocation = [defaults boolForKey:@"MBXShowsUserLocation"];
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NSInteger uncheckedDebugMask = [defaults integerForKey:@"MBXDebugMask"];
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if (uncheckedDebugMask >= 0)
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{
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self.mapView.debugMask = (MGLMapDebugMaskOptions)uncheckedDebugMask;
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}
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}
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- (UIInterfaceOrientationMask)supportedInterfaceOrientations
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{
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return UIInterfaceOrientationMaskAll;
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}
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- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(__unused id)sender {
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if ([segue.identifier isEqualToString:@"ShowOfflinePacks"]) {
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MBXOfflinePacksTableViewController *controller = [segue destinationViewController];
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controller.mapView = self.mapView;
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}
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}
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#pragma mark - Actions
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- (IBAction)showSettings:(__unused id)sender
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{
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MGLMapDebugMaskOptions debugMask = self.mapView.debugMask;
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UIActionSheet *sheet = [[UIActionSheet alloc] initWithTitle:@"Map Settings"
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delegate:self
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cancelButtonTitle:@"Cancel"
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destructiveButtonTitle:nil
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otherButtonTitles:
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@"Reset Position",
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((debugMask & MGLMapDebugTileBoundariesMask)
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? @"Hide Tile Boundaries"
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: @"Show Tile Boundaries"),
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((debugMask & MGLMapDebugTileInfoMask)
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? @"Hide Tile Info"
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: @"Show Tile Info"),
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((debugMask & MGLMapDebugTimestampsMask)
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? @"Hide Tile Timestamps"
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: @"Show Tile Timestamps"),
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((debugMask & MGLMapDebugCollisionBoxesMask)
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? @"Hide Collision Boxes"
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: @"Show Collision Boxes"),
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@"Add 100 Points",
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@"Add 1,000 Points",
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@"Add 10,000 Points",
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@"Add Test Shapes",
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@"Start World Tour",
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@"Add Custom Callout Point",
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@"Remove Annotations",
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(_isShowingCustomStyleLayer
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? @"Hide Custom Style Layer"
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: @"Show Custom Style Layer"),
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@"Print Telemetry Logfile",
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@"Delete Telemetry Logfile",
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nil];
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[sheet showFromBarButtonItem:self.navigationItem.leftBarButtonItem animated:YES];
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}
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- (void)actionSheet:(UIActionSheet *)actionSheet didDismissWithButtonIndex:(NSInteger)buttonIndex
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{
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if (buttonIndex == actionSheet.firstOtherButtonIndex)
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{
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[self.mapView resetPosition];
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}
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else if (buttonIndex == actionSheet.firstOtherButtonIndex + 1)
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{
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self.mapView.debugMask ^= MGLMapDebugTileBoundariesMask;
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}
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else if (buttonIndex == actionSheet.firstOtherButtonIndex + 2)
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{
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self.mapView.debugMask ^= MGLMapDebugTileInfoMask;
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}
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else if (buttonIndex == actionSheet.firstOtherButtonIndex + 3)
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{
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self.mapView.debugMask ^= MGLMapDebugTimestampsMask;
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}
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else if (buttonIndex == actionSheet.firstOtherButtonIndex + 4)
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{
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self.mapView.debugMask ^= MGLMapDebugCollisionBoxesMask;
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}
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else if (buttonIndex == actionSheet.firstOtherButtonIndex + 5)
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{
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[self parseFeaturesAddingCount:100];
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}
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else if (buttonIndex == actionSheet.firstOtherButtonIndex + 6)
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{
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[self parseFeaturesAddingCount:1000];
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}
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else if (buttonIndex == actionSheet.firstOtherButtonIndex + 7)
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{
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[self parseFeaturesAddingCount:10000];
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}
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else if (buttonIndex == actionSheet.firstOtherButtonIndex + 8)
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{
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// PNW triangle
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//
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CLLocationCoordinate2D triangleCoordinates[3] =
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{
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CLLocationCoordinate2DMake(44, -122),
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CLLocationCoordinate2DMake(46, -122),
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CLLocationCoordinate2DMake(46, -121)
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};
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MGLPolygon *triangle = [MGLPolygon polygonWithCoordinates:triangleCoordinates count:3];
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[self.mapView addAnnotation:triangle];
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// Orcas Island hike
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//
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NSDictionary *hike = [NSJSONSerialization JSONObjectWithData:
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[NSData dataWithContentsOfFile:
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[[NSBundle mainBundle] pathForResource:@"polyline" ofType:@"geojson"]]
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options:0
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error:nil];
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NSArray *hikeCoordinatePairs = hike[@"features"][0][@"geometry"][@"coordinates"];
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CLLocationCoordinate2D *polylineCoordinates = (CLLocationCoordinate2D *)malloc([hikeCoordinatePairs count] * sizeof(CLLocationCoordinate2D));
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for (NSUInteger i = 0; i < [hikeCoordinatePairs count]; i++)
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{
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polylineCoordinates[i] = CLLocationCoordinate2DMake([hikeCoordinatePairs[i][1] doubleValue], [hikeCoordinatePairs[i][0] doubleValue]);
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}
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MGLPolyline *polyline = [MGLPolyline polylineWithCoordinates:polylineCoordinates
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count:[hikeCoordinatePairs count]];
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[self.mapView addAnnotation:polyline];
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free(polylineCoordinates);
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// PA/NJ/DE polys
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//
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NSDictionary *threestates = [NSJSONSerialization JSONObjectWithData:
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[NSData dataWithContentsOfFile:
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[[NSBundle mainBundle] pathForResource:@"threestates" ofType:@"geojson"]]
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options:0
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error:nil];
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for (NSDictionary *feature in threestates[@"features"])
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{
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NSArray *stateCoordinatePairs = feature[@"geometry"][@"coordinates"];
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while ([stateCoordinatePairs count] == 1) stateCoordinatePairs = stateCoordinatePairs[0];
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CLLocationCoordinate2D *polygonCoordinates = (CLLocationCoordinate2D *)malloc([stateCoordinatePairs count] * sizeof(CLLocationCoordinate2D));
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for (NSUInteger i = 0; i < [stateCoordinatePairs count]; i++)
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{
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polygonCoordinates[i] = CLLocationCoordinate2DMake([stateCoordinatePairs[i][1] doubleValue], [stateCoordinatePairs[i][0] doubleValue]);
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}
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MGLPolygon *polygon = [MGLPolygon polygonWithCoordinates:polygonCoordinates count:[stateCoordinatePairs count]];
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[self.mapView addAnnotation:polygon];
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free(polygonCoordinates);
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}
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}
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else if (buttonIndex == actionSheet.firstOtherButtonIndex + 9)
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{
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[self startWorldTour:actionSheet];
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}
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else if (buttonIndex == actionSheet.firstOtherButtonIndex + 10)
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{
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[self presentAnnotationWithCustomCallout];
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}
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else if (buttonIndex == actionSheet.firstOtherButtonIndex + 11)
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{
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[self.mapView removeAnnotations:self.mapView.annotations];
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}
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else if (buttonIndex == actionSheet.firstOtherButtonIndex + 12)
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{
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if (_isShowingCustomStyleLayer)
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{
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[self removeCustomStyleLayer];
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}
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else
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{
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[self insertCustomStyleLayer];
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}
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}
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else if (buttonIndex == actionSheet.firstOtherButtonIndex + 13)
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{
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NSString *fileContents = [NSString stringWithContentsOfFile:[self telemetryDebugLogfilePath] encoding:NSUTF8StringEncoding error:nil];
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NSLog(@"%@", fileContents);
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}
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else if (buttonIndex == actionSheet.firstOtherButtonIndex + 14)
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{
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NSString *filePath = [self telemetryDebugLogfilePath];
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if ([[NSFileManager defaultManager] isDeletableFileAtPath:filePath]) {
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NSError *error;
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BOOL success = [[NSFileManager defaultManager] removeItemAtPath:filePath error:&error];
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if (success) {
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NSLog(@"Deleted telemetry log.");
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} else {
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NSLog(@"Error deleting telemetry log: %@", error.localizedDescription);
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}
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}
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}
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}
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- (void)parseFeaturesAddingCount:(NSUInteger)featuresCount
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{
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[self.mapView removeAnnotations:self.mapView.annotations];
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dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^
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{
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NSData *featuresData = [NSData dataWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"points" ofType:@"geojson"]];
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id features = [NSJSONSerialization JSONObjectWithData:featuresData
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options:0
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error:nil];
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if ([features isKindOfClass:[NSDictionary class]])
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{
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NSMutableArray *annotations = [NSMutableArray array];
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for (NSDictionary *feature in features[@"features"])
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{
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CLLocationCoordinate2D coordinate = CLLocationCoordinate2DMake([feature[@"geometry"][@"coordinates"][1] doubleValue],
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[feature[@"geometry"][@"coordinates"][0] doubleValue]);
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NSString *title = feature[@"properties"][@"NAME"];
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MGLPointAnnotation *annotation = [MGLPointAnnotation new];
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annotation.coordinate = coordinate;
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annotation.title = title;
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[annotations addObject:annotation];
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if (annotations.count == featuresCount) break;
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}
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dispatch_async(dispatch_get_main_queue(), ^
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{
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[self.mapView addAnnotations:annotations];
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[self.mapView showAnnotations:annotations animated:YES];
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});
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}
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});
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}
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- (void)insertCustomStyleLayer
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{
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_isShowingCustomStyleLayer = YES;
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static const GLchar *vertexShaderSource = "attribute vec2 a_pos; void main() { gl_Position = vec4(a_pos, 0, 1); }";
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static const GLchar *fragmentShaderSource = "void main() { gl_FragColor = vec4(0, 1, 0, 1); }";
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__block GLuint program = 0;
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__block GLuint vertexShader = 0;
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__block GLuint fragmentShader = 0;
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__block GLuint buffer = 0;
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__block GLuint a_pos = 0;
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[self.mapView insertCustomStyleLayerWithIdentifier:@"mbx-custom" preparationHandler:^{
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program = glCreateProgram();
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vertexShader = glCreateShader(GL_VERTEX_SHADER);
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fragmentShader = glCreateShader(GL_FRAGMENT_SHADER);
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glShaderSource(vertexShader, 1, &vertexShaderSource, NULL);
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glCompileShader(vertexShader);
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glAttachShader(program, vertexShader);
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glShaderSource(fragmentShader, 1, &fragmentShaderSource, NULL);
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glCompileShader(fragmentShader);
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glAttachShader(program, fragmentShader);
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glLinkProgram(program);
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a_pos = glGetAttribLocation(program, "a_pos");
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GLfloat background[] = { -1,-1, 1,-1, -1,1, 1,1 };
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glGenBuffers(1, &buffer);
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glBindBuffer(GL_ARRAY_BUFFER, buffer);
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glBufferData(GL_ARRAY_BUFFER, 8 * sizeof(GLfloat), background, GL_STATIC_DRAW);
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} drawingHandler:^(__unused CGSize size,
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__unused CLLocationCoordinate2D centerCoordinate,
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__unused double zoomLevel,
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__unused CLLocationDirection direction,
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__unused CGFloat pitch,
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__unused CGFloat perspectiveSkew) {
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glUseProgram(program);
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glBindBuffer(GL_ARRAY_BUFFER, buffer);
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glEnableVertexAttribArray(a_pos);
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glVertexAttribPointer(a_pos, 2, GL_FLOAT, GL_FALSE, 0, NULL);
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glDisable(GL_STENCIL_TEST);
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glDisable(GL_DEPTH_TEST);
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glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
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} completionHandler:^{
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if (program) {
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glDeleteBuffers(1, &buffer);
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glDetachShader(program, vertexShader);
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glDetachShader(program, fragmentShader);
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glDeleteShader(vertexShader);
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glDeleteShader(fragmentShader);
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glDeleteProgram(program);
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}
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} belowStyleLayerWithIdentifier:@"housenum-label"];
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}
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- (void)removeCustomStyleLayer
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{
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_isShowingCustomStyleLayer = NO;
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[self.mapView removeCustomStyleLayerWithIdentifier:@"mbx-custom"];
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}
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- (void)presentAnnotationWithCustomCallout
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{
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[self.mapView removeAnnotations:self.mapView.annotations];
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MBXCustomCalloutAnnotation *annotation = [[MBXCustomCalloutAnnotation alloc] init];
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annotation.coordinate = CLLocationCoordinate2DMake(48.8533940, 2.3775439);
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annotation.title = @"Custom Callout";
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[self.mapView addAnnotation:annotation];
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[self.mapView showAnnotations:@[annotation] animated:YES];
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}
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- (IBAction)handleLongPress:(UILongPressGestureRecognizer *)longPress
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{
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if (longPress.state == UIGestureRecognizerStateBegan)
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{
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MBXDroppedPinAnnotation *point = [[MBXDroppedPinAnnotation alloc] init];
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point.coordinate = [self.mapView convertPoint:[longPress locationInView:longPress.view]
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toCoordinateFromView:self.mapView];
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point.title = @"Dropped Pin";
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point.subtitle = [[[MGLCoordinateFormatter alloc] init] stringFromCoordinate:point.coordinate];
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[self.mapView addAnnotation:point];
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[self.mapView selectAnnotation:point animated:YES];
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}
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}
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- (IBAction)cycleStyles:(__unused id)sender
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{
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static NSArray *styleNames;
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static NSArray *styleURLs;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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styleNames = @[
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@"Streets",
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@"Emerald",
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@"Light",
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@"Dark",
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@"Satellite",
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@"Hybrid",
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];
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styleURLs = @[
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[MGLStyle streetsStyleURL],
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[MGLStyle emeraldStyleURL],
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[MGLStyle lightStyleURL],
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[MGLStyle darkStyleURL],
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[MGLStyle satelliteStyleURL],
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[MGLStyle hybridStyleURL],
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];
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NSAssert(styleNames.count == styleURLs.count, @"Style names and URLs don’t match.");
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|
||
// Make sure defaultStyleURLs is up-to-date.
|
||
unsigned numMethods = 0;
|
||
Method *methods = class_copyMethodList(object_getClass([MGLStyle class]), &numMethods);
|
||
unsigned numStyleURLMethods = 0;
|
||
for (NSUInteger i = 0; i < numMethods; i++) {
|
||
Method method = methods[i];
|
||
if (method_getNumberOfArguments(method) == 2 /* _cmd, self */) {
|
||
SEL selector = method_getName(method);
|
||
NSString *name = @(sel_getName(selector));
|
||
if ([name rangeOfString:@"StyleURL"].location != NSNotFound) {
|
||
numStyleURLMethods += 1;
|
||
}
|
||
}
|
||
}
|
||
NSAssert(numStyleURLMethods == styleNames.count,
|
||
@"MGLStyle provides %u default styles but iosapp only knows about %lu of them.",
|
||
numStyleURLMethods, (unsigned long)styleNames.count);
|
||
});
|
||
|
||
self.styleIndex = (self.styleIndex + 1) % styleNames.count;
|
||
|
||
self.mapView.styleURL = styleURLs[self.styleIndex];
|
||
|
||
UIButton *titleButton = (UIButton *)self.navigationItem.titleView;
|
||
[titleButton setTitle:styleNames[self.styleIndex] forState:UIControlStateNormal];
|
||
}
|
||
|
||
- (IBAction)locateUser:(__unused id)sender
|
||
{
|
||
MGLUserTrackingMode nextMode;
|
||
switch (self.mapView.userTrackingMode) {
|
||
case MGLUserTrackingModeNone:
|
||
nextMode = MGLUserTrackingModeFollow;
|
||
break;
|
||
case MGLUserTrackingModeFollow:
|
||
nextMode = MGLUserTrackingModeFollowWithHeading;
|
||
break;
|
||
case MGLUserTrackingModeFollowWithHeading:
|
||
nextMode = MGLUserTrackingModeFollowWithCourse;
|
||
break;
|
||
case MGLUserTrackingModeFollowWithCourse:
|
||
nextMode = MGLUserTrackingModeNone;
|
||
break;
|
||
}
|
||
self.mapView.userTrackingMode = nextMode;
|
||
}
|
||
|
||
- (IBAction)startWorldTour:(__unused id)sender
|
||
{
|
||
_isTouringWorld = YES;
|
||
|
||
[self.mapView removeAnnotations:self.mapView.annotations];
|
||
NSUInteger numberOfAnnotations = sizeof(WorldTourDestinations) / sizeof(WorldTourDestinations[0]);
|
||
NSMutableArray *annotations = [NSMutableArray arrayWithCapacity:numberOfAnnotations];
|
||
for (NSUInteger i = 0; i < numberOfAnnotations; i++)
|
||
{
|
||
MGLPointAnnotation *annotation = [[MGLPointAnnotation alloc] init];
|
||
annotation.coordinate = WorldTourDestinations[i];
|
||
[annotations addObject:annotation];
|
||
}
|
||
[self.mapView addAnnotations:annotations];
|
||
[self continueWorldTourWithRemainingAnnotations:annotations];
|
||
}
|
||
|
||
- (void)continueWorldTourWithRemainingAnnotations:(NS_MUTABLE_ARRAY_OF(MGLPointAnnotation *) *)annotations
|
||
{
|
||
MGLPointAnnotation *nextAnnotation = annotations.firstObject;
|
||
if (!nextAnnotation || !_isTouringWorld)
|
||
{
|
||
_isTouringWorld = NO;
|
||
return;
|
||
}
|
||
|
||
[annotations removeObjectAtIndex:0];
|
||
MGLMapCamera *camera = [MGLMapCamera cameraLookingAtCenterCoordinate:nextAnnotation.coordinate
|
||
fromDistance:10
|
||
pitch:arc4random_uniform(60)
|
||
heading:arc4random_uniform(360)];
|
||
__weak MBXViewController *weakSelf = self;
|
||
[self.mapView flyToCamera:camera completionHandler:^{
|
||
MBXViewController *strongSelf = weakSelf;
|
||
[strongSelf performSelector:@selector(continueWorldTourWithRemainingAnnotations:)
|
||
withObject:annotations
|
||
afterDelay:2];
|
||
}];
|
||
}
|
||
|
||
- (NSString *)telemetryDebugLogfilePath
|
||
{
|
||
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
|
||
[dateFormatter setDateFormat:@"yyyy'-'MM'-'dd"];
|
||
[dateFormatter setTimeZone:[NSTimeZone systemTimeZone]];
|
||
NSString *filePath = [[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) firstObject] stringByAppendingPathComponent:[NSString stringWithFormat:@"telemetry_log-%@.json", [dateFormatter stringFromDate:[NSDate date]]]];
|
||
|
||
return filePath;
|
||
}
|
||
|
||
- (IBAction)unwindToMapViewController:(__unused UIStoryboardSegue *)sender {
|
||
}
|
||
|
||
#pragma mark - Destruction
|
||
|
||
- (void)dealloc
|
||
{
|
||
[[NSNotificationCenter defaultCenter] removeObserver:self];
|
||
|
||
[self saveState:nil];
|
||
}
|
||
|
||
#pragma mark - MGLMapViewDelegate
|
||
|
||
- (MGLAnnotationImage *)mapView:(MGLMapView * __nonnull)mapView imageForAnnotation:(id <MGLAnnotation> __nonnull)annotation
|
||
{
|
||
if ([annotation isKindOfClass:[MBXDroppedPinAnnotation class]]
|
||
|| [annotation isKindOfClass:[MBXCustomCalloutAnnotation class]])
|
||
{
|
||
return nil; // use default marker
|
||
}
|
||
|
||
NSString *title = [(MGLPointAnnotation *)annotation title];
|
||
if (!title.length) return nil;
|
||
NSString *lastTwoCharacters = [title substringFromIndex:title.length - 2];
|
||
|
||
MGLAnnotationImage *annotationImage = [mapView dequeueReusableAnnotationImageWithIdentifier:lastTwoCharacters];
|
||
|
||
if ( ! annotationImage)
|
||
{
|
||
UIColor *color;
|
||
|
||
// make every tenth annotation blue
|
||
if ([lastTwoCharacters hasSuffix:@"0"]) {
|
||
color = [UIColor blueColor];
|
||
} else {
|
||
color = [UIColor redColor];
|
||
}
|
||
|
||
UIImage *image = [self imageWithText:lastTwoCharacters backgroundColor:color];
|
||
annotationImage = [MGLAnnotationImage annotationImageWithImage:image reuseIdentifier:lastTwoCharacters];
|
||
|
||
// don't allow touches on blue annotations
|
||
if ([color isEqual:[UIColor blueColor]]) annotationImage.enabled = NO;
|
||
}
|
||
|
||
return annotationImage;
|
||
}
|
||
|
||
- (UIImage *)imageWithText:(NSString *)text backgroundColor:(UIColor *)color
|
||
{
|
||
CGRect rect = CGRectMake(0, 0, 20, 15);
|
||
|
||
UIGraphicsBeginImageContextWithOptions(rect.size, NO, [[UIScreen mainScreen] scale]);
|
||
|
||
CGContextRef ctx = UIGraphicsGetCurrentContext();
|
||
|
||
CGContextSetFillColorWithColor(ctx, [[color colorWithAlphaComponent:0.75] CGColor]);
|
||
CGContextFillRect(ctx, rect);
|
||
|
||
CGContextSetStrokeColorWithColor(ctx, [[UIColor blackColor] CGColor]);
|
||
CGContextStrokeRectWithWidth(ctx, rect, 2);
|
||
|
||
NSAttributedString *drawString = [[NSAttributedString alloc] initWithString:text attributes:@{
|
||
NSFontAttributeName: [UIFont fontWithName:@"Arial-BoldMT" size:12],
|
||
NSForegroundColorAttributeName: [UIColor whiteColor],
|
||
}];
|
||
CGSize stringSize = drawString.size;
|
||
CGRect stringRect = CGRectMake((rect.size.width - stringSize.width) / 2,
|
||
(rect.size.height - stringSize.height) / 2,
|
||
stringSize.width,
|
||
stringSize.height);
|
||
[drawString drawInRect:stringRect];
|
||
|
||
UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
|
||
UIGraphicsEndImageContext();
|
||
return image;
|
||
}
|
||
|
||
- (void)mapView:(MGLMapView *)mapView didDeselectAnnotation:(id<MGLAnnotation>)annotation {
|
||
NSString *title = [(MGLPointAnnotation *)annotation title];
|
||
if ( ! title.length)
|
||
{
|
||
return;
|
||
}
|
||
NSString *lastTwoCharacters = [title substringFromIndex:title.length - 2];
|
||
MGLAnnotationImage *annotationImage = [mapView dequeueReusableAnnotationImageWithIdentifier:lastTwoCharacters];
|
||
annotationImage.image = annotationImage.image ? nil : [self imageWithText:lastTwoCharacters backgroundColor:[UIColor grayColor]];
|
||
}
|
||
|
||
- (BOOL)mapView:(__unused MGLMapView *)mapView annotationCanShowCallout:(__unused id <MGLAnnotation>)annotation
|
||
{
|
||
return YES;
|
||
}
|
||
|
||
- (CGFloat)mapView:(__unused MGLMapView *)mapView alphaForShapeAnnotation:(MGLShape *)annotation
|
||
{
|
||
return ([annotation isKindOfClass:[MGLPolygon class]] ? 0.5 : 1.0);
|
||
}
|
||
|
||
- (UIColor *)mapView:(__unused MGLMapView *)mapView strokeColorForShapeAnnotation:(MGLShape *)annotation
|
||
{
|
||
return ([annotation isKindOfClass:[MGLPolyline class]] ? [UIColor purpleColor] : [UIColor blackColor]);
|
||
}
|
||
|
||
- (UIColor *)mapView:(__unused MGLMapView *)mapView fillColorForPolygonAnnotation:(__unused MGLPolygon *)annotation
|
||
{
|
||
return (annotation.pointCount > 3 ? [UIColor greenColor] : [UIColor redColor]);
|
||
}
|
||
|
||
- (void)mapView:(__unused MGLMapView *)mapView didChangeUserTrackingMode:(MGLUserTrackingMode)mode animated:(__unused BOOL)animated
|
||
{
|
||
UIImage *newButtonImage;
|
||
NSString *newButtonTitle;
|
||
|
||
switch (mode) {
|
||
case MGLUserTrackingModeNone:
|
||
newButtonImage = [UIImage imageNamed:@"TrackingLocationOffMask.png"];
|
||
break;
|
||
|
||
case MGLUserTrackingModeFollow:
|
||
newButtonImage = [UIImage imageNamed:@"TrackingLocationMask.png"];
|
||
break;
|
||
|
||
case MGLUserTrackingModeFollowWithHeading:
|
||
newButtonImage = [UIImage imageNamed:@"TrackingHeadingMask.png"];
|
||
break;
|
||
case MGLUserTrackingModeFollowWithCourse:
|
||
newButtonImage = nil;
|
||
newButtonTitle = @"Course";
|
||
break;
|
||
}
|
||
|
||
self.navigationItem.rightBarButtonItem.title = newButtonTitle;
|
||
[UIView animateWithDuration:0.25 animations:^{
|
||
self.navigationItem.rightBarButtonItem.image = newButtonImage;
|
||
}];
|
||
}
|
||
|
||
- (UIView<MGLCalloutView> *)mapView:(__unused MGLMapView *)mapView calloutViewForAnnotation:(id<MGLAnnotation>)annotation
|
||
{
|
||
if ([annotation respondsToSelector:@selector(title)]
|
||
&& [annotation isKindOfClass:[MBXCustomCalloutAnnotation class]])
|
||
{
|
||
MBXCustomCalloutView *calloutView = [[MBXCustomCalloutView alloc] init];
|
||
calloutView.representedObject = annotation;
|
||
return calloutView;
|
||
}
|
||
return nil;
|
||
}
|
||
|
||
- (void)mapView:(MGLMapView *)mapView tapOnCalloutForAnnotation:(id <MGLAnnotation>)annotation
|
||
{
|
||
if ( ! [annotation isKindOfClass:[MGLPointAnnotation class]])
|
||
{
|
||
return;
|
||
}
|
||
|
||
MGLPointAnnotation *point = annotation;
|
||
point.coordinate = [self.mapView convertPoint:self.mapView.center toCoordinateFromView:self.mapView];
|
||
}
|
||
|
||
@end
|