iphone - MKPinannotation 详细信息披露按钮 - 呈现新 View

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

如果我理解正确的话，您想要添加一个公开按钮，该按钮允许您呈现一个包含当前引脚注释信息的新 View 。要获得公开按钮，您只需实现以下代码:

- (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 map View 上的图钉时，显示的 View 中将显示一个公开按钮。然后，您需要使用以下方法来告诉应用程序在按下公开按钮时要执行的操作。

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

在该方法中，您可以呈现弹出窗口或模态窗口或推送 View 或您想要对有关当前位置的信息执行的任何操作。您也不需要为每个 Nib 创建一个新 Nib 。最简单的方法是在该 View Controller 中合成值，例如 phoneNumber 和 website 等。然后在显示 View 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;

等等，然后再呈现 View 。我希望这有帮助

编辑:要消除该错误，对于您合成的所有内容，您必须在 header 中声明。所以你会有

@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

如果您在注释 header 中使用它，您也会需要它。它告诉这部分代码，它应该期望向它发送一些字符串，并且它会知道如何处理存储它。

对于调用 GoToMap 方法，您应该在创建 MoreInfo 类时为其设置一个委托(delegate)。因此，在您的 MoreInfo header 中，您将拥有其他内容

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

然后，当您在 View Controller 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，当您想从 MoreInfo 调用 GoToWebsite 时，您可以调用

[self.delegate GoToWebsite];

这当然是假设该方法位于您的第一个 View Controller 中(我可以发誓它是，但突然找不到它)。

但这基本上就是你要做的事情