ios地图sdk | 百度地图api sdk-凯发k8官方旗舰厅

nsmutablearray*items =[nsmutablearray array];
//读取数据
nsdata*jsondata =[nsdata datawithcontentsoffile:[[nsbundle mainbundle] pathforresource:@"multpoints"oftype:@"json"]];
if(jsondata){
nsarray*array =[nsjsonserializationjsonobjectwithdata:jsondata options:0error:nil];
for(nsdictionary*dic in array){
        @autoreleasepool {
bmkmultipointitem*item =[[bmkmultipointitem alloc] init];
            item.coordinate=cllocationcoordinate2dmake([dic[@"lat"] floatvalue],[dic[@"lng"] floatvalue]);
[items addobject:item];
}
}
}
_multipointoverlay =[bmkmultipointoverlay multipointoverlaywithmultipointitems:items];
/**
 向地图view添加overlay，需要实现bmkmapviewdelegate的-mapview:viewforoverlay:方法
 来生成标注对应的view
 @param overlay 要添加的overlay
 */
[_mapview addoverlay:self.multipointoverlay];

#pragma mark -bmkmapviewdelegate
/**
 根据overlay生成对应的bmkoverlayview
 @param mapview 地图view
 @param overlay 指定的overlay
 @return 生成的覆盖物view
 */
-(bmkoverlayview*)mapview:(bmkmapview*)mapview viewforoverlay:(id<bmkoverlay>)overlay {
if([overlay iskindofclass:[bmkmultipointoverlayclass]]){
//初始化一个overlay并返回相应的bmkmultipointoverlayview的实例
bmkmultipointoverlayview*multipointoverlayview =[[bmkmultipointoverlayview alloc] initwithmultipointoverlay:overlay];
        multipointoverlayview.icon=[uiimage imagenamed:@"multpoints"];
        multipointoverlayview.anchor=cgpointmake(0.5,1.0);
        multipointoverlayview.pointsize=cgsizemake(32,32);
multipointoverlayview.delegate= self;
return multipointoverlayview;
}
return nil;
}

//mark:bmkmapviewdelegate
/**
 根据overlay生成对应的bmkoverlayview
 @param mapview 地图view
 @param overlay 指定的overlay
 @return 生成的覆盖物view
 */
-(void)multipointoverlayview:(bmkmultipointoverlayview*)overlayview diditemtapped:(bmkmultipointitem*)item {
[self.mapview removeannotations:self.mapview.annotations];
[self.mapview addannotation:item];
}