IOS_21 Group Purchase _ map function

Eventually:

Back to the User location button in the lower right corner:

Mapcontroller Controller,

is the corresponding controller for the map button on the left dock of the main controller ,

Inherit from Showdealdetailcontroller,

Therefore, auto has the function of displaying the purchase details controller

  mapcontroller.h//  Handsome _ buy////  Created by Beyond on 14-8-14.//  Copyright (c) 2014 Com.beyond. All rights reserved.//  dock above the "map" button corresponding to the controller, inherited from the ShowDealDetailController.h controller, automatically has the display Purchase details controller function #import " ShowDealDetailController.h "@interface Mapcontroller:showdealdetailcontroller@end

mapcontroller.m//Handsome _ buy////Created by Beyond on 14-8-14.//Copyright (c) 2014 Com.beyond. All rights reserved.//Dock above the "map" button corresponding to the controller, inherited from the ShowDealDetailController.h controller, automatically has the display Purchase details controller function #import " MapController.h "#import <MapKit/MapKit.h> #import" DealRequestTool.h "#import" MetaDataTool.h "#import" LocationTool.h "//member has latitude and longitude coordinates #import" City.h "//a merchant model #import" Business.h "#import" Deal.h "//A PIN model that provides a data source for pin View # Import "MyAnnotation.h"//longitude and latitude across the # define Kspan mkcoordinatespanmake (0.018404, 0.031468) @interface Mapcontroller ()    <mkmapviewdelegate>{Mkmapview *_mapview; Nsmutablearray *_showingdeals;}            @end @implementation mapcontroller-(void) viewdidload{[Super Viewdidload];    Self.title = @ "Map"; 0. Monitoring the notification of the completion of the location ..... There's a problem here. Kaddallnotes (DataChange)//1. Add map Mkmapview *mapview = [[Mkmapview alloc] InitWithFrame:self.view.bou    NDS]; Mapview.autoresizingmask = Uiviewautoresizingflexibleheight |    Uiviewautoresizingflexiblewidth; Show user's location point mApview.showsuserlocation = YES;    Set proxy mapview.delegate = self;        [Self.view Addsubview:mapview];            2. Initialize array _showingdeals = [Nsmutablearray array];    3. Add the button back to the user's location [self addbacktouserlocationbtn]; }-(void) addbacktouserlocationbtn{//3. Add a button back to the user's location UIButton *backuserbtn = [UIButton buttonwithtype:uibuttontypecus    Tom];    Cgsize imgsize = [backuserbtn setbtnbgimgfornormal:@ "Btn_map_locate.png" highlightedname:@ "Btn_map_locate_hl.png"];    CGFloat w = imgsize.width;    CGFloat h = imgsize.height;    CGFloat margin = 20;    CGFloat x = self.view.frame.size.width-w-margin;    CGFloat y = self.view.frame.size.height-h-margin;    The button is in the lower right corner so the left margin and the top margin are automatically scaled backuserbtn.frame = CGRectMake (x, Y, W, h); Backuserbtn.autoresizingmask = Uiviewautoresizingflexibleleftmargin |    Uiviewautoresizingflexibletopmargin; [Backuserbtn addtarget:self Action: @selector (backtouserlocationbtnclicked) forControlEvents:    UIControlEventTouchUpInside]; [Self.vieW ADDSUBVIEW:BACKUSERBTN];} The return to User Center Point button is clicked-(void) backtouserlocationbtnclicked{//Mapview contains the user's location information (the annotation representing the users ' Loc    ation) Cllocationcoordinate2d Center = _mapview.userlocation.location.coordinate;    Mkcoordinateregion region = Mkcoordinateregionmake (center, Kspan); Set center point [_mapview setregion:region animated:yes];} The proxy method of the #pragma mark-mapview #pragma mark is called when the user is located (very high frequency of calls)---2-(void) Mapview: (Mkmapview *) Mapview        Didupdateuserlocation: (mkuserlocation *) userlocation{//Only Let it first locate the user coordinates if (_mapview) return;        1. User location (center point) cllocationcoordinate2d Center = userLocation.location.coordinate;        2. After determining the center point, then determine the span (range)//Mkcoordinatespan span = Mkcoordinatespanmake (0.018404, 0.031468);        3. Based on the center point and span, the area mkcoordinateregion region = Mkcoordinateregionmake (center, Kspan) is determined;    4. Let the Mapview display to the specified area [Mapview setregion:region Animated:yes];                    _mapview = Mapview;    Set the center point coordinates for the user's coordinates ...[Mapview setCenterCoordinate:userLocation.location.coordinate animated:yes];} #pragma mark drag the map (the area of the map is changed) it calls-(void) Mapview: (Mkmapview *) Mapview regionwillchangeanimated: (BOOL) animated{//1.        The center position of the current display area of the map cllocationcoordinate2d pos = mapView.region.center; Calculates the city name according to the center point position coordinates,//2. Use the tool class to send requests to the server [[Dealrequesttool Shareddealrequesttool] Dealsrequestwithpos:pos success        : ^ (nsarray *deals, int total_count) {//Iterate through the returned deals array and compare to the deals array saved by the current controller, if the deal has been shown, continue skips, For (Deal *d in deals) {//already shown, skip, avoid pin shadow burn if ([_showingdeals containsobject:d]) contin                        Ue                        If the returned deal, never shown, is added to the member array first, then the member of the group: quotient area, each with a pin to display to Mapview above [_showingdeals addobject:d]; An array of merchant objects that traverse this group of deals (business *b in d.businesses) {//a merchant corresponds to a pin model, which is the data source, for annotation V Iew provides data//Annotation is a model that is used to mark coordinates//implement proxy Mapview on a map:Viewforannotation: Method, return each annotation corresponding annotation View myannotation *anno = [[Myannotation alloc] init];                Anno.business = b;                Anno.deal = D;                Anno.coordinate = Cllocationcoordinate2dmake (B.latitude, b.longitude);            Important ~ ~ ~ Provide data for Mapview, then come to Method mapview:viewforannotation: [Mapview Addannotation:anno];    }}} error:^ (Nserror *error) {log (@ "Error---%@", error);            }]; The proxy method for the #pragma mark-mapview//is similar to cell for Row, providing a view for each annotation, where a custom annotation model is used-(Mkannotationview *) Mapview :(Mkmapview *) Mapview viewforannotation: (myannotation *) annotation{if (![        Annotation Iskindofclass:[myannotation class]) return nil;    1. Remove the pin view static nsstring *id = @ "Mkannotationview" from the cache pool;        Mkannotationview *annoview = [Mapview dequeuereusableannotationviewwithidentifier:id]; 2. The cache pool does not have a recyclable pin view if (Annoview = = nil) {//should be used MkpinannotationviEW this subclass, a data source model must be provided when constructing annotationview annotation annoview = [[Mkpinannotationview alloc] Initwithannotation:annotati    On Reuseidentifier:id];        }//3. Set the PIN information for the view to provide a unique data source model annoview.annotation = annotation;        4. Set Picture Annoview.image = [UIImage ImageNamed:annotation.icon]; return Annoview;} #pragma mark clicked on the Pin-(void) Mapview: (Mkmapview *) Mapview Didselectannotationview: (Mkannotationview *) view{//0. If the system comes with Pin, then return directly ... if (![    View.annotation Iskindofclass:[myannotation class]) {return;    }//1. Call the parent class method, show the detail controller, and provide the data source myannotation *anno = view.annotation;        [Self showDetail:anno.deal];        2. Center the selected pin (to become the center point) [Mapview setCenterCoordinate:anno.coordinate Animated:yes]; 3. Bring some shadow effects to the view perimeter View.layer.shadowColor = [Uicolor Bluecolor].    Cgcolor;    view.layer.shadowOpacity = 1; View.layer.shadowRadius = 10;} #pragma mark-Monitor re-refreshes webview//when the location city changes 0. Listen for notification of location completion-(void) datachange{//1. City *city = [MeTadatatool sharedmetadatatool].currentcity;    Clgeocoder *geo = [[Clgeocoder alloc] init];                Global Search for XXX cities [Geo GeocodeAddressString:city.name completionhandler:^ (Nsarray *placemarks, Nserror *error) {        Positioning, after parsing, you can provide latitude and longitude clplacemark *place = placemarks[0];        1. User location (center point) cllocationcoordinate2d Center = place.location.coordinate;        City.position = place.location.coordinate;        Important, the city with tools to remember, because when sending the request, also used the city name and latitude and longitude [locationtool sharedlocationtool].locationcity = cities; 2. After determining the center point, then determine the span (range)//3. After the center point and the span, the area mkcoordinateregion region = Mkcoordinateregionmake (center, K        Span);    4. Let the Mapview display to the specified area [_mapview setregion:region Animated:yes]; }];} @end

IOS_21 Group Purchase _ map function