说我有一个Google App Engine数据存储区中的商家列表。
是否可以使用Google Maps Api将数据存储中列出的10个最接近的商家显示为Android或iOS设备的GPS坐标？
答案 0 :(得分：2)
@swanhella ..
使用以下代码进行 IOS使用带有图像的Google API附近的地方 您必须首先注册Google Api控制台。，..
下载使用的库
1.首先在 AppDelegate 中设置.. //在使用捆绑标识符注册时，可以从Google API获取密钥
#import "FTGooglePlacesAPI.h"
[FTGooglePlacesAPIService provideAPIKey:@"AIzaSyA1B4sNPcKPf76dcgLgYsJzCVP79NRTUKI"];
2.然后在你的控制器.. 导入库
下面#import "UIImageView+WebCache.h"
#import "AppDelegate.h"
#import "FTGooglePlacesAPI.h"
#import "FTGooglePlacesAPIExampleDetailViewController.h"
#import "UIImageView+AFNetworking.h"
#import "AFNetworking.h"
typedef NS_ENUM(NSUInteger, FTGooglePlacesAPIExampleType) {
FTGooglePlacesAPIExampleTypeMuseumKeyword,
};
@property (nonatomic, assign) CLLocationCoordinate2D locationCoordinate;
@property (nonatomic, strong) id<FTGooglePlacesAPIRequest> initialRequest;
@property (nonatomic, strong) id<FTGooglePlacesAPIRequest> actualRequest;
@property (nonatomic, strong) CLLocation *searchLocation;
@property (nonatomic, strong) FTGooglePlacesAPISearchResponse *lastResponse;
@property (nonatomic, strong) UIActivityIndicatorView *activityIndicatorView;
@property (nonatomic, strong) NSMutableArray *results;
- (void)viewDidLoad
{
// Custom initialization
//Here i have Set Custom Location
self.locationCoordinate = CLLocationCoordinate2DMake(23.0370544,72.5142021);
//Clear Data
_results = [NSMutableArray array];
_searchLocation = [[CLLocation alloc] initWithLatitude:self.locationCoordinate.latitude longitude:self.locationCoordinate.longitude];
//Set Activity Indicator
self.activityIndicatorView = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray];
_activityIndicatorView.hidesWhenStopped = YES;
UIBarButtonItem *activityBarButton = [[UIBarButtonItem alloc] initWithCustomView:_activityIndicatorView];
self.navigationItem.rightBarButtonItem = activityBarButton;
//Create Request to Get Data from Google Places
id<FTGooglePlacesAPIRequest> request = [self googlePlacesAPIRequestForExampleType:FTGooglePlacesAPIExampleTypeMuseumKeyword];
_initialRequest = request;
_actualRequest = request;
}
-(void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:YES];
// Controller is first displayed - start searching
if ([_results count] == 0) {
[self startSearching];
}
}
#pragma mark - FTGooglePlacesAPI performing search request
- (void)startSearching
{
// Show activity indicator
[_activityIndicatorView startAnimating];
// Execute Google Places API request using FTGooglePlacesAPIService
[FTGooglePlacesAPIService executeSearchRequest:_actualRequest
withCompletionHandler:^(FTGooglePlacesAPISearchResponse *response, NSError *error)
{
// If error is not nil, request failed and you should handle the error
// We just show alert
if (error)
{
// There may be a lot of causes for an error (for example networking error).
// If the network communication with Google Places API was successfull,
// but the API returned some status code, NSError will have
// FTGooglePlacesAPIErrorDomain domain and status code from
// FTGooglePlacesAPIResponseStatus enum
// You can inspect error's domain and status code for more detailed info
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:[error localizedDescription] message:[error localizedFailureReason] delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
[alert show];
[_activityIndicatorView stopAnimating];
return;
}
// Everything went fine, we have response object
// You can do whatever you need here, we just add new items to the
// data source array and reload the table
// You could add new rows with animation etc., but it would add useless
// complexity to the sample code app
// Update last response object
_lastResponse = response;
// Add new results to the data source array
[_results addObjectsFromArray:response.results];
// NSSortDescriptor *sortDescriptor = [NSSortDescriptor sortDescriptorWithKey:@"description" ascending:YES selector:@selector(compare:)];
//These Distance Code may be useful to SORT in Future....
for (int i=0; i<[_results count]; i++)
{
// Get response object
FTGooglePlacesAPISearchResultItem *resultItem = _results[i];
if (resultItem.location) {
CLLocationDistance distance = [resultItem.location distanceFromLocation:_searchLocation];
NSString *strdistance = [NSString stringWithFormat:@"Distance: %.0fm", distance];
NSLog(@"strdistance=%@",strdistance);
resultItem.strDistance=strdistance;
}
}
[self.tblMain reloadData];
[_activityIndicatorView stopAnimating];
}];
}
- (id<FTGooglePlacesAPIRequest>)googlePlacesAPIRequestForExampleType:(FTGooglePlacesAPIExampleType)type
{
id<FTGooglePlacesAPIRequest> result;
switch (type)
{
case FTGooglePlacesAPIExampleTypeMuseumKeyword:
{
**FTGooglePlacesAPINearbySearchRequest *request = [[FTGooglePlacesAPINearbySearchRequest alloc] initWithLocationCoordinate:self.locationCoordinate];
// may be useful in future
// FTGooglePlacesAPITextSearchRequest *request = [[FTGooglePlacesAPITextSearchRequest alloc] initWithQuery:@"pizza in london"];
//Diff types of sort in Google Places
// request.keyword = @"museum";
// request.openNow = YES;
// request.types = @[@"art_gallery", @"museum"];
// request.types = @[@"restaurant"];
// request.minPrice = 4;
request.radius = 500;
result = request;**
}
break;
}
return result;
}
#pragma mark Table view Method
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1; //count of section
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
// return ArrList.count; //count number of row from counting array hear cataGorry is An Array
return [_results count] + ([_lastResponse hasNextPage]);
}
- (UITableViewCell *)tableView:(UITableView *)tableView
cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
//Load More Cell
static NSString *LoadMoreCellIdentifier = @"LoadMoreCell";
//Custom Design Cell
static NSString *ResultCellIdentifier = @"CELL_Custom";
BOOL isLoadMoreResultsCell = [self isLoadMoreResultsCellAtIndexPath:indexPath];
NSString *cellIdentifier = (isLoadMoreResultsCell? LoadMoreCellIdentifier:ResultCellIdentifier);
// Using Custom Cell
CELL_Custom *cell=(CELL_Custom *)[tableView dequeueReusableCellWithIdentifier:cellIdentifier];
// Configure "Load more" cell
if (isLoadMoreResultsCell)
{
// This is constant cell, so we can preconfigure it on the init
if (cell==nil)
{
NSArray *nibs=[[NSBundle mainBundle] loadNibNamed:@"CELL_Custom"
owner:self options:nil];
cell=[nibs objectAtIndex:0];
}
cell.Lbl_Name.textAlignment = NSTextAlignmentCenter;
cell.Lbl_Name.text = @"Load more results...";
[cell.Lbl_Name setFrame:CGRectMake(cell.Lbl_Name.frame.origin.x-70, cell.Lbl_Name.frame.origin.y, cell.Lbl_Name.frame.size.width+70, cell.Lbl_Name.frame.size.height)];
[cell.Lbl_Name setFont:[UIFont boldSystemFontOfSize:30]];
[cell.Img_thumb setHidden:YES];
[cell.Lbl_sec setHidden:YES];
return cell;
}
else // Configure "CELL_Custom" cell
{
if (cell==nil)
{
NSArray *nibs=[[NSBundle mainBundle] loadNibNamed:@"CELL_Custom"
owner:self options:nil];
cell=[nibs objectAtIndex:0];
}
cell.selectionStyle=UITableViewCellSelectionStyleNone;
cell.backgroundColor=[UIColor clearColor];
[cell.Img_thumb setHidden:NO];
[cell.Lbl_sec setHidden:NO];
cell.Img_thumb.layer.cornerRadius = cell.Img_thumb.frame.size.width/2;
cell.Img_thumb.layer.masksToBounds = YES;
// Get response object
FTGooglePlacesAPISearchResultItem *resultItem = _results[indexPath.row];
cell.Lbl_Name.text=resultItem.name;
NSLog(@"resultItem.strDistance=%@",resultItem.strDistance);
if (resultItem.location) {
CLLocationDistance distance = [resultItem.location distanceFromLocation:_searchLocation];
cell.Lbl_sec.text = [NSString stringWithFormat:@"Distance: %.0fm", distance];
}
//if temp Set Icon to Image
[cell.Img_thumb setImageWithURL:[NSURL URLWithString:resultItem.iconImageUrl] placeholderImage:[self placeholderImage]];
//If Place found Photos
if(resultItem.photos !=nil)
{
NSArray *aryPhotos = resultItem.photos;
NSString *photoreference =[NSString stringWithFormat:@"%@",[[aryPhotos objectAtIndex:0] valueForKey:@"photo_reference"]];
//Save Temp in SDImageCache
if ([[SDImageCache sharedImageCache] imageFromDiskCacheForKey:photoreference])
{
cell.Img_thumb.image=[[SDImageCache sharedImageCache] imageFromDiskCacheForKey:photoreference];
}
else
{
NSString *strPlace=[NSString stringWithFormat:@"https://maps.googleapis.com/maps/api/place/photo?maxwidth=400&photoreference=%@&key=%@",photoreference,@"AIzaSyA1B4sNPcKPf76dcgLgYsJzCVP79NRTUKI"];
NSURL *URL = [NSURL URLWithString:strPlace];
NSURLRequest *request = [NSURLRequest requestWithURL:URL];
[NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError)
{
UIImage *img=[UIImage imageWithData:data];
[[SDImageCache sharedImageCache] storeImage:img forKey:photoreference];
cell.Img_thumb.image=[[SDImageCache sharedImageCache] imageFromDiskCacheForKey:photoreference];
}];
}
}
return cell;
}
}
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
return 80;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
[tableView deselectRowAtIndexPath:indexPath animated:YES];
// Selected "Load more results" cell
if ([self isLoadMoreResultsCellAtIndexPath:indexPath])
{
// Get request for a new page of results and start search
id<FTGooglePlacesAPIRequest> nextPageRequest = [_lastResponse nextPageRequest];
_actualRequest = nextPageRequest;
[self startSearching];
}
// Selected result item cell
else
{
// Get response object
FTGooglePlacesAPISearchResultItem *resultItem = _results[indexPath.row];
// Create detail request
FTGooglePlacesAPIDetailRequest *request = [[FTGooglePlacesAPIDetailRequest alloc] initWithPlaceId:resultItem.placeId];
// Create detail controller
FTGooglePlacesAPIExampleDetailViewController *detailController = [[FTGooglePlacesAPIExampleDetailViewController alloc] initWithRequest:request];
[self.navigationController pushViewController:detailController animated:YES];
// And print it to the console
NSLog(@"Selected item: %@", resultItem);
}
}
- (UIImage *)placeholderImage
{
static UIImage *PlaceholderImage;
if (!PlaceholderImage)
{
CGRect rect = CGRectMake(0, 0, 40.0f, 40.0f);
UIGraphicsBeginImageContext(rect.size);
[[UIColor whiteColor] setFill];
[[UIBezierPath bezierPathWithRect:rect] fill];
PlaceholderImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
}
return PlaceholderImage;
}
#pragma mark - LoadMore methods
- (BOOL)isLoadMoreResultsCellAtIndexPath:(NSIndexPath *)indexPath
{
// It is load more cell if there is more results to read and this is
// the last cell in a table view
NSInteger numberOfRows = [self tableView:self.tblMain numberOfRowsInSection:indexPath.section];
return ((indexPath.row == numberOfRows - 1) && [_lastResponse hasNextPage]);
}
// 快乐编码..