HUD Navigation Mode
HUD navigation is used for projection display during driving. This mode visually displays navigation information and is a safe and simple navigation mode. The navigation SDK provides you with a default HUD interface HUDView, as shown below:
The following is an example of driving navigation, how to achieve HUD navigation.
Initialize
1. Initialize the HUDView object
- (void)initHudView {
if (!self.hudView) {
self.hudView = [[HUDView alloc] initWithFrame: self.bounds];
self.hudView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
self.hudView.layout = self.bounds.size.width > self.bounds.size.height ? HUDViewLayoutHorizontal : HUDViewLayoutVertical;
[self addSubview: self.hudView];
}
}
2. Update HUD based on navigation data
- (void)updateHudViewWith:(MBNaviSessionData *)realtimeData {
if (!realtimeData) {
return;
}
MBNaviSessionData *aData = realtimeData;
if (realtimeData.hasTurn) {
_hudView.roadNameLabel.text = [NSString stringWithFormat:@"%@", aData.nextRoadName];
}
if (!aData.drifting) {
[_hudView.destanceProgressView setProgress: realtimeData.turnIconProgress/128.0 animated:YES];
}
NSInteger turnId = aData.turnIcon;
MBGpsInfo *gpsInfo = [FakeGpsTracker sharedGpsTracker].currentGPSInfo;
if(!aData.drifting && turnId != 0 && gpsInfo.valid) {
if(turnId == 1) {
_hudView.turn_icon.hidden = YES;
_hudView.turn_title.hidden = NO;
_hudView.turn_icon_title.hidden = YES;
} else {
_hudView.turn_icon.image = [[MBResource sharedResoure] imageForName:[NSString stringWithFormat:@"turn_icons_hud/turn_hud_icons%ld.png", (long)turnId]];
_hudView.turn_icon.hidden = NO;
_hudView.turn_title.hidden = YES;
_hudView.turn_icon_title.hidden = YES;
}
} else {
_hudView.turn_icon.hidden = YES;
_hudView.turn_title.hidden = NO;
_hudView.turn_icon_title.hidden = NO;y
}
NSString*str = [MBUtils distanceTextWithLength:aData.turnIconDistance];
Str = [str stringByReplacingOccurrencesOfString:@"metre" withString:@"metre"];
if(aData.turnIconDistance >= 0) {
NSMutableAttributedString *attrString = [[NSMutableAttributedString alloc] initWithString:[NSString stringWithFormat:@"%@, enter ",str]];
if (_hudView.layout == HUDViewLayoutHorizontal) {
[attrString setAttributes:@{NSFontAttributeName: [UIFont mbMediumFont100]} range:NSMakeRange(0, attrString.length)];
[attrString setAttributes:@{NSFontAttributeName: [UIFont mbMediumFont56]} range:NSMakeRange(attrString.length - 5, 5)];
} else {
[attrString setAttributes:@{NSFontAttributeName: [UIFont mbMediumFont160]} range:NSMakeRange(0, attrString.length)];
[attrString setAttributes:@{NSFontAttributeName: [UIFont mbMediumFont80]} range:NSMakeRange(attrString.length - 5, 5)];
}
if ([attrString.string containsString:@" "]) {
[attrString deleteCharactersInRange:NSMakeRange(attrString.length - 5, 1)];
}
_hudView.destanceLabel.attributedText = attrString;
} else {
_hudView.destanceLabel.text = @"";
}
if(gpsInfo.valid) {
NSMutableAttributedString *attrString = [[NSMutableAttributedString alloc] initWithString:[NSString stringWithFormat:@"%3.0f km/h",aData.speed*3.6]];
if (_hudView.layout == HUDViewLayoutHorizontal) {
[attrString setAttributes:@{NSFontAttributeName: [UIFont mbMediumFont56]} range:NSMakeRange(0, attrString.length)];
[attrString setAttributes:@{NSFontAttributeName: [UIFont mbMediumFont40]} range:NSMakeRange(attrString.length - 4, 4)];
} else {
[attrString setAttributes:@{NSFontAttributeName: [UIFont mbMediumFont80]} range:NSMakeRange(0, attrString.length)];
[attrString setAttributes:@{NSFontAttributeName: [UIFont mbMediumFont40]} range:NSMakeRange(attrString.length - 4, 4)];
}
_hudView.speedLabel.attributedText = attrString;
} else {
_hudView.speedLabel.text = @"Signal weak";
}
const MBRoadCamera *camera = aData.firstCamera;
NSInteger routeDistance = aData.routeLength - aData.travelledDistance;
NSString *distanceStr = nil;
if (routeDistance >= 1000) {
distanceStr = [NSString stringWithFormat:@"remaining %.0f km", round(routeDistance / 1000.0)];
} else {
distanceStr = [NSString stringWithFormat:@"remaining %@", [MBUtils distanceTextWithLength:routeDistance]];
}
NSString *timeStr = nil;
NSInteger hours = aData.remainingTime / 3600;
NSInteger minutes = aData.remainingTime / 60 - hours*60;
if (minutes > 60) {
timeStr = [NSString stringWithFormat:@"%ld hours%ld minutes", (long)hours, (long)minutes];
} else if (minutes == 60){
timeStr = [NSString stringWithFormat:@"%ldhours",(long)hours];
} else {
timeStr = [NSString stringWithFormat:@"%ldminutes",(long)minutes];
}
if (_hudView.layout == HUDViewLayoutHorizontal) {
_hudView.all_destanceLabel.text = [NSString stringWithFormat:@"%@\n%@",distanceStr,timeStr];
} else {
_hudView.all_destanceLabel.text = [NSString stringWithFormat:@"%@, %@",distanceStr,timeStr];
}
if(camera && (camera.type == MBCameraType_speed || camera.type == MBCameraType_radar || camera.type == MBCameraType_mobile)) {
[_hudView.speed_icon setTitle:[NSString stringWithFormat:@"%lu",(unsigned long)camera.speedLimit] forState:0];
[_hudView.speedProgressView setProgress:(500 - camera.distanceFromCar)/500.0 animated:YES];
_hudView.speed_icon.hidden = NO;
_hudView.compassLabel.hidden = YES;
_hudView.speedProgressView.hidden = NO;
} else {
_hudView.speed_icon.hidden = YES;
_hudView.speedProgressView.hidden = YES;
_hudView.compassLabel.hidden = NO;
_hudView.compassLabel.text = [self getCarOriStr:aData.carOri];
}
}
- (NSString *)getCarOriStr:(NSUInteger)ori {
NSUInteger n = ori/45;
NSUInteger d = ori%45;
NSArray *arr = @[@"east", @"East by North", @"northeast", @"North by East", @"north",@"North by West",@"North Northwest",@"northwest", @"west", @"West by South", @"southwest", @"South by West", @"south", @"South by East", @"southeast", @"South by East"];
// NSString *str = [NSString stringWithFormat:@"%@%@",[arr objectAtIndex:(2*n+(d?1:0))%16],d?[NSString stringWithFormat:@"%lu°", (long)(n%2?45-d:d)]:@""];
return [arr objectAtIndex:(2*n+(d?1:0))%16];
}
Load HUD View in the Driving Page
- (RouteNaviView *)naviView {
return (RouteNaviView *)self.view;
}
- (void)viewDidLoad {
[super viewDidLoad];
[RouteModel2 shared].naviSessionDelegate = self;
[self.naviView showHudView];
}
Open Navigation
Enable navigation (real-time or simulation) in the callback function for successful route planning.
- (void)routeModelNaviSessionTracking:(MBNaviSessionData*)data {
[super routeModelNaviSessionTracking:data];
if (self.naviView.hudView && self.naviView.hudView.superview) {
[self.naviView updateHudViewWith:data];
}
}