前言
最近在开发中遇到了百度地图的开发，功能类似于微信中的发送位置，拖拽从新定位，以及反编码，列表附近的位置。分析出来供大家参考学习，下面话不多说了，来一起看看详细的介绍吧。
效果图：
百度地图拖拽更新位置.gif
实现思路
思路就是将一个uiimageview固定在地图中间，每次更新位置，给uiimageview添加动画即可。
代码如下：
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#import "ftbasiccontroller.h"
typedef void (^selectblock) (nsstring *address,cllocationcoordinate2d select);
@interface ftuploadaddresscontroller : ftbasiccontroller
@property(nonatomic, copy)selectblock selectblock;
@end
#import "ftuploadaddresscontroller.h"
#import "ftbmkpoiinfo.h"
#import "ftpoicell.h"
@interface ftuploadaddresscontroller ()@property(nonatomic,strong)bmklocationservice *locservice;
@property(nonatomic,strong)bmkuserlocation *userlocation;
@property(nonatomic,strong)bmkmapview *mapview;
@property(nonatomic,strong)uitableview *tableview;
@property(nonatomic,strong)bmkgeocodesearch *geocodesearch;
@property(nonatomic,strong)uiimageview *loactionview;
@property(nonatomic,strong)nsmutablearray *dataa;
@property(nonatomic,strong)lxbutton *poibackbtn;
@property(nonatomic,assign)cllocationcoordinate2d selectedcoordinate;
@property(nonatomic,strong)nsstring *selectaddress;
@end
@implementation ftuploadaddresscontroller
-(void)viewwillappear:(bool)animated{
[super viewwillappear:animated];
self.fd_interactivepopdisabled = yes;
if (!([cllocationmanager authorizationstatus] == kclauthorizationstatusauthorizedalways || [cllocationmanager authorizationstatus] == kclauthorizationstatusauthorizedwheninuse) &&[cllocationmanager authorizationstatus] != kclauthorizationstatusnotdetermined){
[self judgeopenlocation];
}else{
[_mapview viewwillappear];
_mapview.delegate = self; // 此处记得不用的时候需要置nil，否则影响内存的释放
_locservice.delegate = self;
_geocodesearch.delegate = self; // 此处记得不用的时候需要置nil，否则影响内存的释放
_mapview.showsuserlocation = no;//先关闭显示的定位图层
_mapview.usertrackingmode = 0;
_mapview.showsuserlocation = yes;//显示定位图层
[self.locservice startuserlocationservice];
}
}
-(void)judgeopenlocation{
uialertcontroller *alertvc = [uialertcontroller alertcontrollerwithtitle:@"打开[定位服务]来允许[应用名字]确定您的位置" message:@"请在系统设置中开启定位服务(设置>隐私>定位服务>应用名字>始终)" preferredstyle:uialertcontrollerstylealert];
[alertvc addaction:[uialertaction actionwithtitle:@"取消" style:uialertactionstylecancel handler:nil]];
[alertvc addaction:[uialertaction actionwithtitle:@"去设置" style:uialertactionstyledefault handler:^(uialertaction * _nonnull action) {
if ([[[uidevice currentdevice] systemversion] floatvalue] >= 10.000000) {
//跳转到定位权限页面
nsurl *url = [nsurl urlwithstring:uiapplicationopensettingsurlstring];
if( [[uiapplication sharedapplication]canopenurl:url] ) {
[[uiapplication sharedapplication] openurl:url];
}
}else {
//跳转到定位开关界面
nsurl *url = [nsurl urlwithstring:@"prefs:root=location_services"];
if( [[uiapplication sharedapplication]canopenurl:url] ) {
[[uiapplication sharedapplication] openurl:url];
}
}
}]];
[self presentviewcontroller:alertvc animated:yes completion:nil];
}
-(void)viewwilldisappear:(bool)animated
{
self.fd_interactivepopdisabled = no;
[_mapview viewwilldisappear];
_mapview.delegate = nil; // 不用时，置nil
[self.locservice stopuserlocationservice];
_geocodesearch.delegate = nil; // 不用时，置nil
_locservice.delegate = nil;
}
- (void)viewdidload {
[super viewdidload];
// do any additional setup after loading the view.
self.title = @"所在位置";
self.locservice = [[bmklocationservice alloc]init];
self.geocodesearch = [[bmkgeocodesearch alloc]init];
[self setup];
self.navigationitem.leftbarbuttonitem =[[uibarbuttonitem alloc]initwithimage:[[uiimage imagenamed:@"return"]imagewithrenderingmode:uiimagerenderingmodealwaysoriginal] style:uibarbuttonitemstyleplain target:self action:@selector(backreturn)];
}
-(void)backreturn{
if (self.selectblock) {
self.selectblock(self.selectaddress, self.selectedcoordinate);
[self.navigationcontroller popviewcontrolleranimated:yes];
}
}
-(void)setup{
[self.view addsubview:self.mapview];
[self.view addsubview:self.tableview];
[self.mapview addsubview:self.loactionview];
[self.mapview addsubview:self.poibackbtn];
[self.poibackbtn lx_setshadowpathwith:[uicolor graycolor] shadowopacity:0.5 shadowradius:5 shadowside:lxshadowpathbottom shadowpathwidth:3];
ftws(weakself);
[self.poibackbtn addclickblock:^(uibutton *button) {
[weakself.mapview setcentercoordinate:weakself.userlocation.location.coordinate];
}];
}
- (void)didupdatebmkuserlocation:(bmkuserlocation *)userlocation
{
// nslog(@"didupdateuserlocation lat %f,long %f",userlocation.location.coordinate.latitude,userlocation.location.coordinate.longitude);
[_mapview updatelocationdata:userlocation];
self.userlocation = userlocation;
[self.mapview setcentercoordinate:userlocation.location.coordinate];
bmkreversegeocodeoption * option = [[bmkreversegeocodeoption alloc]init];
option.reversegeopoint = userlocation.location.coordinate;
bool flag = [_geocodesearch reversegeocode:option];
if (flag) {
}
//更新位置之后必须停止定位，
[_locservice stopuserlocationservice];
}
-(void)mapview:(bmkmapview *)mapview regiondidchangeanimated:(bool)animated{
nslog(@"地图拖动");
[uiview animatewithduration:0.30 animations:^{
self.loactionview.centery -=8;
} completion:^(bool finished) {
self.loactionview.centery +=8;
}];
cgpoint touchpoint = self.mapview.center;
cllocationcoordinate2d touchmapcoordinate =
[self.mapview convertpoint:touchpoint tocoordinatefromview:self.mapview];//这里touchmapcoordinate就是该点的经纬度了
nslog(@"touching %f,%f",touchmapcoordinate.latitude,touchmapcoordinate.longitude);
//选择的上传地址
self.selectedcoordinate = touchmapcoordinate;
bmkreversegeocodeoption * option = [[bmkreversegeocodeoption alloc]init];
option.reversegeopoint = touchmapcoordinate;
bool flag = [_geocodesearch reversegeocode:option];
if (flag) {
}
}
#pragma mark---获取反编码的数据---
-(void)ongetreversegeocoderesult:(bmkgeocodesearch *)searcher result:(bmkreversegeocoderesult *)result errorcode:(bmksearcherrorcode)error
{
bmkaddresscomponent *component=[[bmkaddresscomponent alloc]init];
component=result.addressdetail;
[self.dataa removeallobjects];
for (int i =0; i< result.poilist.count; i++) {
bmkpoiinfo *info = result.poilist[i];
ftbmkpoiinfo *ftinfo =[[ftbmkpoiinfo alloc]init];
ftinfo.address = info.address;
ftinfo.seleced = no;
if (i == 0) {
ftinfo.seleced = yes;
self.selectaddress = ftinfo.address;
}
[self.dataa addobject:ftinfo];
}
[self.tableview reloaddata];
}
#pragma mark--- 定位的方法--
- (void)didupdateuserheading:(bmkuserlocation *)userlocation
{
[_mapview updatelocationdata:userlocation];
// nslog(@"heading is %@",userlocation.heading);
}
-(bmkmapview *)mapview{
if (!_mapview) {
_mapview =[[bmkmapview alloc]initwithframe:cgrectmake(0, navh, device_width, 350)];
_mapview.zoomlevel = 18;
_mapview.minzoomlevel = 3;
_mapview.maxzoomlevel = 21;
// bmklocationviewdisplayparam *displayparam = [[bmklocationviewdisplayparam alloc]init];
// displayparam.isrotateanglevalid = true;//跟随态旋转角度是否生效
// displayparam.isaccuracycircleshow = false;//精度圈是否显示
// displayparam.locationviewoffsetx = 0;//定位偏移量(经度)
// displayparam.locationviewoffsety = 0;//定位偏移量（纬度）
// [_mapview updatelocationviewwithparam:displayparam];
}
return _mapview;
}
-(nsinteger)tableview:(uitableview *)tableview numberofrowsinsection:(nsinteger)section{
return self.dataa.count;
}
-(uitableviewcell *)tableview:(uitableview *)tableview cellforrowatindexpath:(nsindexpath *)indexpath{
ftpoicell *cell =[tableview dequeuereusablecellwithidentifier:@"cell" forindexpath:indexpath];
if (!cell) {
cell =[[ftpoicell alloc]initwithstyle:uitableviewcellstyledefault reuseidentifier:@"cell"];
}
ftbmkpoiinfo *info = self.dataa[indexpath.row];
cell.info = info;
return cell;
}
-(void)tableview:(uitableview *)tableview didselectrowatindexpath:(nsindexpath *)indexpath{
[tableview deselectrowatindexpath:indexpath animated:yes];
ftbmkpoiinfo *info = self.dataa[indexpath.row];
self.selectaddress = info.address;
[self.dataa enumerateobjectsusingblock:^(ftbmkpoiinfo * obj, nsuinteger idx, bool * _nonnull stop) {
if (obj == info) {
obj.seleced = yes;
}else{
obj.seleced = no;
}
[self.tableview reloaddata];
}];
if (self.selectblock) {
self.selectblock(self.selectaddress,self.selectedcoordinate);
[self.navigationcontroller popviewcontrolleranimated:yes];
}
}
-(uitableview *)tableview{
if (!_tableview) {
_tableview =[[uitableview alloc]initwithframe:cgrectmake(0, self.mapview.bottom, device_width, device_height - self.mapview.bottom) style:uitableviewstyleplain];
_tableview.delegate = self;
_tableview.datasource = self;
_tableview.showsverticalscrollindicator = no;
_tableview.showshorizontalscrollindicator = no;
_tableview.tablefooterview = [uiview new];
_tableview.rowheight = 44;
[_tableview registernib:[uinib nibwithnibname:@"ftpoicell" bundle:nil] forcellreuseidentifier:@"cell"];
// [_tableview registerclass:[uitableviewcell class] forcellreuseidentifier:@"cell"];
}
return _tableview;
}
-(nsmutablearray *)dataa{
if (!_dataa) {
_dataa =[nsmutablearray array];
}
return _dataa;
}
-(uiimageview *)loactionview{
if (!_loactionview) {
_loactionview =[[uiimageview alloc]initwithimage:[uiimage imagenamed:@"ditu_red"]];
_loactionview.center = cgpointmake(self.mapview.width/2, self.mapview.height/2);
}
return _loactionview;
}
-(lxbutton *)poibackbtn{
if (!_poibackbtn) {
_poibackbtn =[lxbutton lxbuttonwithtitle:nil titlefont:nil image:nil backgroundimage:nil backgroundcolor:[uicolor whitecolor] titlecolor:nil frame:cgrectmake(device_width - 75, self.mapview.height - 75, 50, 50)];
[_poibackbtn setftcornerdious:25];
uiimageview *imageview =[[uiimageview alloc]initwithimage:[uiimage imagenamed:@"poi_back"]];
imageview.center = cgpointmake(25, 25);
[_poibackbtn addsubview:imageview];
}
return _poibackbtn;
}
@end
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总结
以上就是这篇文章的全部内容了，希望本文的内容对大家的学习或者工作具有一定的参考学习价值，如果有疑问大家可以留言交流，谢谢大家对快网idc的支持。
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