iOS growth path Baidu map Overlay

Import Baidu Map

Initialize Baidu Map

Mapview = [[Bmkmapview alloc]initwithframe: (cgrect) {0,0,viewwith,viewhight}];

[Self.view Addsubview:mapview];

Mapview.delegate = self;

Add lines and coordinate objects

Allarray inside is the latitude

if (Allarray.count > 2) {

Cllocationcoordinate2d coords[2];

for (Nsinteger i = 0; i < (allarray.count-1); i++) {

NSString *str = Allarray[i];

Nsarray *temp = [str componentsseparatedbystring:@ ","];

NSString *lon = temp[0];

NSString *lat = temp[1];

bmkpointannotation* annotation1 = [[Bmkpointannotation alloc]init];

Cllocationcoordinate2d Coor1;

Coor1.latitude = [lat doublevalue];

Coor1.longitude = [lon Doublevalue];

Annotation1.coordinate = Coor1;

Annotation1.title =[nsstring stringwithformat:@ "%@", Placename[i]];

[Mapview Addannotation:annotation1];

NSLog (@ "%@--%@", Lon,lat);

cllocationcoordinate2d coordinate = Cllocationcoordinate2dmake ([lon Doublevalue], [lat doublevalue]);

Coords[0].latitude = [lat doublevalue];

Coords[0].longitude = [lon Doublevalue];

_number = i;

NSString *STR2 = allarray[i + 1];

Nsarray *TEMP2 = [str2 componentsseparatedbystring:@ ","];

NSString *lon2 = temp2[0];

NSString *lat2 = temp2[1];

NSLog (@ "%@--%@", LON2,LAT2);

Cllocationcoordinate2d coordinate2 = Cllocationcoordinate2dmake ([lat2 doublevalue], [Lon2 doublevalue]);

Coords[1].latitude = [Lat2 doublevalue];

Coords[1].longitude = [Lon2 doublevalue];

Bmkpolyline *mypolyline = [Bmkpolyline polylinewithcoordinates:coords count:2];

[Mapview Addoverlay:mypolyline];

}

}

Custom Coordinate objects

This agent is a line.

-(Bmkoverlayview *) Mapview: (Bmkmapview *) Mapview Viewforoverlay: (id <BMKOverlay>) overlay{

if ([Overlay Iskindofclass:[bmkpolyline class]]) {

bmkpolylineview* Polylineview = [[Bmkpolylineview alloc] initwithoverlay:overlay];

Polylineview.strokecolor = [[Uicolor purplecolor] colorwithalphacomponent:1];

Polylineview.linewidth = 5.0;

return polylineview;

}

return nil;

}

This agent is a coordinate object.

-(Bmkannotationview *) Mapview: (Bmkmapview *) Mapview viewforannotation: (id <BMKAnnotation>) annotation

{

if ([Annotation iskindofclass:[bmkpointannotation class]]) {

UIView *viewforimage=[[uiview alloc]initwithframe:cgrectmake (0, 0, 132, 64)];

Bmkpinannotationview *newannotationview = [[Bmkpinannotationview alloc] Initwithannotation:annotation reuseidentifier:@ "Myannotation"];

Newannotationview.pincolor = Bmkpinannotationcolorpurple;

Newannotationview.animatesdrop = yes;//Sets the callout point animated display

//

UIView *viewforimage=[[uiview alloc]initwithframe:cgrectmake (0, 0, 45, 45)];

Uiimageview *imageview=[[uiimageview alloc]initwithframe:cgrectmake (0, 0, 45, 45)];

[ImageView setimage:[uiimage imagenamed:[nsstring stringwithformat:@ "%d", _number-1]];

[Viewforimage Addsubview:imageview];

UILabel *label=[[uilabel Alloc]initwithframe:cgrectmake (32, 0, 100, 64)];

[Email protected] "Chen Dishu";

Label.backgroundcolor=[uicolor Clearcolor];

[Viewforimage Addsubview:label];

Newannotationview.image=[self Getimagefromview:viewforimage];

return newannotationview;

}

return nil;

}

This is changing the view you defined into a picture.

-(UIImage *) Getimagefromview: (UIView *) view{

Uigraphicsbeginimagecontext (view.bounds.size);

[View.layer Renderincontext:uigraphicsgetcurrentcontext ()];

UIImage *image = Uigraphicsgetimagefromcurrentimagecontext ();

Uigraphicsendimagecontext ();

return image;

}

iOS growth path Baidu map Overlay