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//
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// RMUserTrackingBarButtonItem.m
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// MapView
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//
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// Created by Justin Miller on 5/10/12.
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// Copyright (c) 2012 MapBox / Development Seed. All rights reserved.
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//
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#import "RMUserTrackingBarButtonItem.h"
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#import "RMMapView.h"
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#import "RMUserLocation.h"
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typedef enum {
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RMUserTrackingButtonStateActivity = 0,
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RMUserTrackingButtonStateLocation = 1,
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RMUserTrackingButtonStateHeading = 2
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} RMUserTrackingButtonState;
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@interface RMUserTrackingBarButtonItem ()
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@property (nonatomic, retain) UISegmentedControl *segmentedControl;
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@property (nonatomic, retain) UIImageView *buttonImageView;
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@property (nonatomic, retain) UIActivityIndicatorView *activityView;
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@property (nonatomic) RMUserTrackingButtonState state;
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- (void)updateAppearance;
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- (void)changeMode:(id)sender;
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@end
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#pragma mark -
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@implementation RMUserTrackingBarButtonItem
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@synthesize mapView=_mapView;
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@synthesize segmentedControl;
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@synthesize buttonImageView;
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@synthesize activityView;
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@synthesize state;
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- (id)initWithMapView:(RMMapView *)mapView
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{
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if (!(self = [super initWithCustomView:[[UIControl alloc] initWithFrame:CGRectMake(0, 0, 32, 32)]]))
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return nil;
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segmentedControl = [[[UISegmentedControl alloc] initWithItems:[NSArray arrayWithObject:@""]] retain];
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segmentedControl.segmentedControlStyle = UISegmentedControlStyleBar;
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[segmentedControl setWidth:32.0 forSegmentAtIndex:0];
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segmentedControl.userInteractionEnabled = NO;
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segmentedControl.tintColor = self.tintColor;
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segmentedControl.center = self.customView.center;
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[self.customView addSubview:segmentedControl];
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buttonImageView = [[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"TrackingLocation.png"]] retain];
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buttonImageView.contentMode = UIViewContentModeCenter;
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buttonImageView.frame = CGRectMake(0, 0, 32, 32);
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buttonImageView.center = self.customView.center;
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buttonImageView.userInteractionEnabled = NO;
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[self.customView addSubview:buttonImageView];
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activityView = [[[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhite] retain];
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activityView.hidesWhenStopped = YES;
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activityView.center = self.customView.center;
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activityView.userInteractionEnabled = NO;
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[self.customView addSubview:activityView];
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[((UIControl *)self.customView) addTarget:self action:@selector(changeMode:) forControlEvents:UIControlEventTouchUpInside];
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_mapView = [mapView retain];
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[_mapView addObserver:self forKeyPath:@"userTrackingMode" options:NSKeyValueObservingOptionNew context:nil];
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[self updateAppearance];
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return self;
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}
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- (void)dealloc
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{
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[segmentedControl release]; segmentedControl = nil;
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[buttonImageView release]; buttonImageView = nil;
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[activityView release]; activityView = nil;
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[_mapView removeObserver:self forKeyPath:@"userTrackingMode"];
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[_mapView release]; _mapView = nil;
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[super dealloc];
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}
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#pragma mark -
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- (void)setMapView:(RMMapView *)newMapView
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{
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if ( ! [newMapView isEqual:_mapView])
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{
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[_mapView removeObserver:self forKeyPath:@"userTrackingMode"];
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[_mapView release];
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_mapView = [newMapView retain];
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[_mapView addObserver:self forKeyPath:@"userTrackingMode" options:NSKeyValueObservingOptionNew context:nil];
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[self updateAppearance];
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}
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}
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- (void)setTintColor:(UIColor *)newTintColor
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{
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[super setTintColor:newTintColor];
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segmentedControl.tintColor = newTintColor;
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}
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#pragma mark -
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- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context
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{
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[self updateAppearance];
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}
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#pragma mark -
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- (void)updateAppearance
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{
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segmentedControl.selectedSegmentIndex = (_mapView.userTrackingMode == RMUserTrackingModeNone ? UISegmentedControlNoSegment : 0);
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if ( ! _mapView.userLocation || ! _mapView.userLocation.location)
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{
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if (state != RMUserTrackingButtonStateActivity)
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{
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[UIView animateWithDuration:0.25
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animations:^(void)
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{
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buttonImageView.transform = CGAffineTransformMakeScale(0.01, 0.01);
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activityView.transform = CGAffineTransformMakeScale(0.01, 0.01);
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}
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completion:^(BOOL finished)
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{
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buttonImageView.hidden = YES;
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[activityView startAnimating];
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[UIView animateWithDuration:0.25 animations:^(void)
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{
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buttonImageView.transform = CGAffineTransformIdentity;
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activityView.transform = CGAffineTransformIdentity;
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}];
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}];
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state = RMUserTrackingButtonStateActivity;
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}
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}
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else
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{
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if ((_mapView.userTrackingMode != RMUserTrackingModeFollowWithHeading && state != RMUserTrackingButtonStateLocation) ||
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(_mapView.userTrackingMode == RMUserTrackingModeFollowWithHeading && state != RMUserTrackingButtonStateHeading))
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{
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[UIView animateWithDuration:0.25
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animations:^(void)
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{
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buttonImageView.transform = CGAffineTransformMakeScale(0.01, 0.01);
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activityView.transform = CGAffineTransformMakeScale(0.01, 0.01);
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}
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completion:^(BOOL finished)
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{
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buttonImageView.image = [UIImage imageNamed:(_mapView.userTrackingMode == RMUserTrackingModeFollowWithHeading ? @"TrackingHeading.png" : @"TrackingLocation.png")];
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buttonImageView.hidden = NO;
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[activityView stopAnimating];
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[UIView animateWithDuration:0.25 animations:^(void)
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{
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buttonImageView.transform = CGAffineTransformIdentity;
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activityView.transform = CGAffineTransformIdentity;
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}];
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}];
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state = (_mapView.userTrackingMode == RMUserTrackingModeFollowWithHeading ? RMUserTrackingButtonStateHeading : RMUserTrackingButtonStateLocation);
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}
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}
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}
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- (void)changeMode:(id)sender
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{
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if (_mapView)
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{
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switch (_mapView.userTrackingMode)
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{
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case RMUserTrackingModeNone:
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default:
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{
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_mapView.userTrackingMode = RMUserTrackingModeFollow;
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break;
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}
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case RMUserTrackingModeFollow:
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{
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if ([CLLocationManager headingAvailable])
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_mapView.userTrackingMode = RMUserTrackingModeFollowWithHeading;
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else
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_mapView.userTrackingMode = RMUserTrackingModeNone;
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break;
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}
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case RMUserTrackingModeFollowWithHeading:
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{
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_mapView.userTrackingMode = RMUserTrackingModeNone;
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break;
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}
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}
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}
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[self updateAppearance];
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}
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@end |
...
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...
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