MKPinannotation 详细信息披露按钮 - 呈现新视图

Question

FirstViewController.h

#import <UIKit/UIKit.h>
#import <MapKit/MapKit.h>
@interface TransparentToolbar : UIToolbar{

}
@end
@interface AddressAnnotation : NSObject <MKAnnotation>  {

CLLocationCoordinate2D coordinate;

NSString *title;
  NSString *subTitle;
 NSString *directions;
  NSString *website; 

}
@property (nonatomic,retain) NSString *title;
@property (nonatomic,retain) NSString *subtitle;
@property (nonatomic,retain) NSString *directions;
@property (nonatomic,retain) NSString *website; 


@end


@interface FirstViewController : UIViewController {
IBOutlet MKMapView  *mapView;
//stores go here!
//declare store names as Company *cityState
AddressAnnotation *chiliAuburnAlabama;
AddressAnnotation *tuttifruttiHomewoodAlabama;
NSString *website;
}
@property (nonatomic,retain) NSString *website;
-(IBAction) updateLocation;
-(IBAction) setMap:(id)sender;
-(IBAction) showPin;
@end


FirstViewController.m

#import "FirstViewController.h"
#import "MoreInfo.h"
@implementation AddressAnnotation
@synthesize title;
@synthesize subtitle;
@synthesize coordinate;
@synthesize directions;
@synthesize website;
- (NSString *)subtitle{
return subtitle;

}
-(NSString *) website{
return website;
}  

-(NSString *) directions{
return directions;
}

- (NSString *)title{
return title;
}

-(id)initWithCoordinate:(CLLocationCoordinate2D) c{
coordinate=c;
return self;
}

@end





@implementation TransparentToolbar

// Override draw rect to avoid
// background coloring
- (void)drawRect:(CGRect)rect {
// do nothing in here
}

// Set properties to make background
// translucent.
- (void) applyTranslucentBackground
{
self.backgroundColor = [UIColor clearColor];
self.opaque = NO;
self.translucent = YES;
}

// Override init.
 - (id) init
{
self = [super init];
[self applyTranslucentBackground];
return self;
 }

// Override initWithFrame.
- (id) initWithFrame:(CGRect) frame
 {
self = [super initWithFrame:frame];
[self applyTranslucentBackground];
return self;
}

@end

 @implementation FirstViewController
 @synthesize website;
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)mapViewWillStartLocatingUser:(MKMapView *)mapView{


}
- (void)mapView:(MKMapView *)mapView didUpdateUserLocation:(MKUserLocation *)userLocation{
[self showPin];
}
- (void)viewDidLoad
{  
mapView.showsUserLocation = YES;
//[self showPin];
[super viewDidLoad];




}

-(IBAction) updateLocation{
mapView.showsUserLocation = YES;
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
 {
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}


- (void)didReceiveMemoryWarning
{
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];

// Release any cached data, images, etc. that aren't in use.
}


- (void)viewDidUnload
{
[super viewDidUnload];

// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}


-(IBAction)setMap:(id)sender{
switch(((UISegmentedControl *)sender).selectedSegmentIndex){
case 0:
{
    mapView.mapType = MKMapTypeStandard;
     break;
}
case 1:
{
    mapView.mapType = MKMapTypeSatellite;
    break;
}
case 2:
{
mapView.mapType = MKMapTypeHybrid;
break;
}

}}


- (MKAnnotationView *)mapView:(MKMapView *)mv viewForAnnotation:(id <MKAnnotation>)annotation {
MKAnnotationView *pinView = (MKAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:@"pinView"];

if (!pinView) {
    pinView = [[[MKAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:@"pinView"] autorelease];
   pinView.image = [UIImage imageNamed:@"SPOON4.png"];
    pinView.frame = CGRectMake(-30, 0, 37.5, 67.5); 
    //pinView.animatesDrop = YES;
    pinView.canShowCallout = YES;


    UIButton *rightButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
    pinView.rightCalloutAccessoryView = rightButton;

} else {
    pinView.annotation = annotation;
}
if (annotation == mapView.userLocation){
    return nil; //default to blue dot
}
return pinView;
}
-(IBAction) showPin{

MKCoordinateRegion region;
MKCoordinateSpan span;
span.latitudeDelta=0.2;
span.longitudeDelta=0.2;
//MOST CODE WILL BE INSERTED HERE!
//INSTRUCTIONS!
//CCLocationCoordinate2D companyCity = mapView.userLocation.coordinate;
//companyCity.latitude = latitude here;
//companyCity.longitutde = longitude here;
//CLLocation *companyCityLocation = [[CLLocation alloc] initWithLatitude:companyCity.latitude longitude:companyCity.longitude];
//if(companyCityState != nil) {
//[mapView removeAnnotation:companyCityState];
//[companyCityState release];
//companyCityState = nil;
//}
//companyCityState = [[AddressAnnotation alloc] initWithCoordinate:companyCity];
//companyCityState.title = @"name of shop here";
//double distanceMetersCompanyCityState = [mapView.userLocation.location distanceFromLocation:companyCityLocation];
//double distanceMilesCompanyCityState = distanceMetersCompanyCityState/1609.334;
//companyCityState.subtitle= [NSString stringWithFormat:@"%.2f miles away", distanceMilesCompanyCityState];
//[mapView addAnnotation:companyCityState];
//[companyCityState release];

//always declare location as companyCity 
//if more than one in one city then add a number i.e. companyCity2

//chili in mobile alabama
CLLocationCoordinate2D chiliAuburn = mapView.userLocation.coordinate;
chiliAuburn.latitude = 32.606434 ;
chiliAuburn.longitude = (-85.484025);
CLLocation *chiliAuburnLocation = [[CLLocation alloc] initWithLatitude:chiliAuburn.latitude longitude:chiliAuburn.longitude];




if(chiliAuburnAlabama != nil) {
    [mapView removeAnnotation:chiliAuburnAlabama];
    [chiliAuburnAlabama release];
    chiliAuburnAlabama = nil;
}

chiliAuburnAlabama = [[AddressAnnotation alloc] initWithCoordinate:chiliAuburn];
chiliAuburnAlabama.title = @"Chili Yogurt Café";
chiliAuburnAlabama.website = @"http://stackoverflow.com/questions/6195774/mkpinannotation-detail-disclosure-button-get-directions-call-number";
double distanceMetersChiliAuburnAlabama = [mapView.userLocation.location distanceFromLocation:chiliAuburnLocation];
double distanceMilesChiliAuburnAlabama = distanceMetersChiliAuburnAlabama/1609.334;
chiliAuburnAlabama.subtitle= [NSString stringWithFormat:@"%.1f miles away", distanceMilesChiliAuburnAlabama];
[mapView addAnnotation:chiliAuburnAlabama];
[chiliAuburnAlabama release];
//tutti frutti homewood alabama

CLLocationCoordinate2D tuttifruttiHomewood = mapView.userLocation.coordinate;
tuttifruttiHomewood.latitude = 33.479775 ;
tuttifruttiHomewood.longitude = -86.790977;
CLLocation *tuttifruttiHomewoodLocation = [[CLLocation alloc]initWithLatitude:tuttifruttiHomewood.latitude longitude:tuttifruttiHomewood.longitude];
if(tuttifruttiHomewoodAlabama != nil) {
    [mapView removeAnnotation:tuttifruttiHomewoodAlabama];
    [tuttifruttiHomewoodAlabama release];
    tuttifruttiHomewoodAlabama = nil;
}

tuttifruttiHomewoodAlabama = [[AddressAnnotation alloc] initWithCoordinate:tuttifruttiHomewood];
double distanceMetersTuttifruttiHomewoodAlabama = [mapView.userLocation.location distanceFromLocation:tuttifruttiHomewoodLocation];
double distanceMilesTuttifruttiHomewoodAlabama = distanceMetersTuttifruttiHomewoodAlabama/1609.334;
tuttifruttiHomewoodAlabama.title = @"Tutti Frutti";
tuttifruttiHomewoodAlabama.subtitle = [NSString stringWithFormat:@"%.1f miles away",distanceMilesTuttifruttiHomewoodAlabama];
[mapView addAnnotation:tuttifruttiHomewoodAlabama];




//ignore below
CLLocationCoordinate2D user = mapView.userLocation.coordinate;
region.span = span;
region.center = user;
[mapView setRegion:region animated:TRUE];
[mapView regionThatFits:region];

}
- (void)mapView:(MKMapView *)mv didAddAnnotationViews:(NSArray *)views {
for(MKAnnotationView *annotationView in views) {
    if(annotationView.annotation == mv.userLocation) {
        MKCoordinateRegion region;
        MKCoordinateSpan span;

        span.latitudeDelta=0.1;
        span.longitudeDelta=0.1; 

        CLLocationCoordinate2D location=mv.userLocation.coordinate;

        region.span=span;
        region.center=location;

        [mv setRegion:region animated:TRUE];
        [mv regionThatFits:region];
    }

}
}
- (void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control{
MoreInfo *moreInfoView = [[MoreInfo alloc] initWithNibName:@"MoreInfo" bundle:nil];
moreInfoView.title = view.annotation.title ;
//moreInfoView.getDirections = @"";
moreInfoView.getWebsite = [NSURL URLWithString:view.annotation.website];
[self.navigationController pushViewController:moreInfoView animated:YES];




}

- (void)dealloc
{   

[super dealloc];    
}
@end

更多信息.h

#import <UIKit/UIKit.h>


@interface MoreInfo : UIViewController {
IBOutlet UITableView *tableView;
NSMutableArray *moreInfo;
 NSURL *getDirections;
 NSURL *getWebsite;
}
-(void)goToWebsite;
@property (nonatomic,retain) NSURL *getDirections;
@property (nonatomic,retain) NSURL *getWebsite;

@end

更多信息.m

#import "MoreInfo.h"
#import "FirstViewController.h"

@implementation MoreInfo
@synthesize getDirections;
@synthesize getWebsite;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
    // Custom initialization
}
return self;
}

- (void)dealloc
{
[super dealloc];
}

- (void)didReceiveMemoryWarning
{
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];

// Release any cached data, images, etc that aren't in use.
}

#pragma mark - View lifecycle

- (void)viewDidLoad {
moreInfo = [[NSMutableArray alloc] init];
[moreInfo addObject:@"Phone Number"];
[moreInfo addObject:@"Address"];
[moreInfo addObject:@"Go to Website"];
[moreInfo addObject:@"Get Directions"];
    [super viewDidLoad];
}
/*- (UITableViewCellAccessoryType)tableView:(UITableView *)tableView    accessoryTypeForRowWithIndexPath:(NSIndexPath *)indexPath{

}*/
- (void)tableView:(UITableView *)tableView accessoryButtonTappedForRowWithIndexPath:(NSIndexPath *)indexPath{


if (indexPath.row == 2) {
    [self goToWebsite];
}



}
-(void) goToWebsite{
[[UIApplication sharedApplication]openURL:getWebsite];
NSLog(@"website is %@", [getWebsite absoluteString]);
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {

return [moreInfo count];

}
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section{
if (section == 0) {
    return @"More Information";
}else return nil;

} 
- (UITableViewCell *)tableView:(UITableView *)tv cellForRowAtIndexPath:(NSIndexPath *)indexPath {

static NSString *CellIdentifier = @"Cell";

UITableViewCell *cell = [tv dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
    cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:CellIdentifier] autorelease];
}


// Set up the cell...
if(indexPath.section == 0){
    cell.textLabel.text = [moreInfo objectAtIndex:indexPath.row];
    cell.accessoryType = UITableViewCellAccessoryDetailDisclosureButton;
} return cell;
}
- (NSString *)tableView:(UITableView *)tableView titleForFooterInSection:(NSInteger)section{
if(section == 0){
    return @"Touch the Address to Get Directions";
}else return nil;
}
- (void)viewDidUnload
{
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}

@end

Answer 1

如果我理解正确，您想添加一个披露按钮，该按钮允许您显示一个包含有关当前引脚注释信息的新视图。要获得披露按钮，您只需要实现以下代码：

- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation {
    MKPinAnnotationView *pinView = (MKPinAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:@"pinView"];
    if (!pinView) {
        pinView = [[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:@"pinView"] autorelease];
        pinView.pinColor = MKPinAnnotationColorRed;
        pinView.animatesDrop = YES;
        pinView.canShowCallout = YES;

        UIButton *rightButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
        pinView.rightCalloutAccessoryView = rightButton;
    } else {
        pinView.annotation = annotation;
    }
    return pinView;
}

现在，当您点击 mapView 上的图钉时，显示的视图中将显示一个显示按钮。然后，您将需要使用以下方法告诉应用在按下披露按钮时要执行的操作。

- (void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control

在该方法中，您可以显示弹出窗口或模式窗口或推送视图或任何您想要对当前位置信息执行的操作。您也不需要为每个笔尖创建一个新笔尖。最简单的做法是在该视图控制器中合成值，例如 phoneNumber 和 website 之类的。然后在您呈现视图的最后一个方法中，根据需要传递值。例如，

NewView *vc = [[NewView alloc] initWithNibName:@"NewView" bundle:nil];
vc.phoneNumber = // the phone number of this location;
vc.website = // the website;

在呈现视图之前等等。我希望这会有所帮助

编辑：要消除该错误，对于您合成的所有内容，您必须在标题中声明。这样你就有了

@interface FirstViewController : UIViewController {
    IBOutlet MKMapView  *mapView;
    //stores go here!
    //declare store names as Company *cityState
    AddressAnnotation *chiliAuburnAlabama;
    AddressAnnotation *tuttifruttiHomewoodAlabama;

    NSString *website;
    // the rest of your synthesized attributes you want in the view controller;
}
-(IBAction) updateLocation;
-(IBAction) setMap:(id)sender;
-(IBAction) showPin;

@property (nonatomic, retain) NSString *website;
// This is the property that will get rid of your error and you should do it to any other attributes you want to pass into the controller;
@end

如果你在注释头中使用它，你也会想要它。它告诉那部分代码它应该期望一些字符串被发送给它，它会知道如何处理存储它。

至于调用您的 GoToMap 方法，您应该在创建 MoreInfo 类时为其设置一个委托。因此，在您的 MoreInfo 标题中，您将拥有，除此之外

@interface MoreInfo .... {
    id delegate;
    // everything else;
}
@property (nonatomic, assign) id delegate;
// your methods and other properties;
@end

然后，当您在视图控制器中创建它时，您将拥有

MoreInfo *moreInfoView = [[MoreInfo alloc] initWithNibName:@"MoreInfo" bundle:nil];
moreInfoView.title = view.annotation.title ;
moreInfoView.delegate = self;
// this assigns the current view controller as its delegate;
//moreInfoView.getDirections = [NSURL URLWithString:[NSString stringWithFormat: @"http://maps.google.com/maps?q=%@@%1.6f,%1.6f&z=10", view.annotation.coordinate.latitude, view.annotation.coordinate.longitude]];
moreInfoView.getWebsite = view.annotation.website;
[self.navigationController pushViewController:moreInfoView animated:YES];

最后，当你想从你的 MoreInfo 调用 GoToWebsite 时，你可以调用

[self.delegate GoToWebsite];

这当然是假设该方法在您的第一个视图控制器中（我可以发誓它是，但突然找不到它）。

但这基本上就是你的处理方式