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效果图（gif压缩问题请忽略）
1.activity代码（android6.0以上别忘记添加动态权限）
我要评论/**
* created by yyyyq on 2020/3/26
* 获取当前定位,地图选点,获取当前和选择的位置信息
*/
public class locationactivity extends appcompatactivity implements locationsource, amaplocationlistener, geocodesearch.ongeocodesearchlistener,
amap.onmapclicklistener {
private mapview mapview;
private amap amap;
private uisettings uisettings;
//定位服务
private locationsource.onlocationchangedlistener onlocationchangedlistener;
private amaplocationclient locationclient;
private amaplocationclientoption locationclientoption;
//地理编码
private geocodesearch geocodesearch;
//回显位置信息的textview
private textview locationcoordinate;
private textview locationinfo;
//当前地图上的marker
private marker marker;
@override
protected void oncreate(@nullable bundle savedinstancestate) {
super.oncreate(savedinstancestate);
setcontentview(r.layout.activity_location);
mapview = findviewbyid(r.id.location_map);
mapview.oncreate(savedinstancestate);
locationcoordinate = findviewbyid(r.id.location_coordinate);
locationinfo = findviewbyid(r.id.location_info);
if (amap == null) {
amap = mapview.getmap();
uisettings = amap.getuisettings();
//设置地图属性
setmapattribute();
}
}
private void setmapattribute() {
//设置默认缩放级别
amap.animatecamera(cameraupdatefactory.zoomto(15));
//隐藏的右下角缩放按钮
uisettings.setzoomcontrolsenabled(false);
//显示右上角定位按钮
uisettings.setmylocationbuttonenabled(false);
//设置定位监听
amap.setlocationsource(this);
//可触发定位并显示当前位置
amap.setmylocationenabled(true);
//定位一次，且将视角移动到地图中心点
mylocationstyle mylocationstyle = new mylocationstyle();
mylocationstyle.mylocationtype(mylocationstyle.location_type_locate);
//隐藏定位点外圈圆的颜色
mylocationstyle.strokecolor(color.argb(0, 0, 0, 0));
mylocationstyle.radiusfillcolor(color.argb(0, 0, 0, 0));
amap.setmylocationstyle(mylocationstyle);
//设置地理编码查询
geocodesearch = new geocodesearch(this);
geocodesearch.setongeocodesearchlistener(this);
//设置地图点击事件
amap.setonmapclicklistener(this);
}
/**
* 激活定位
*/
@override
public void activate(onlocationchangedlistener onlocationchangedlistener) {
this.onlocationchangedlistener = onlocationchangedlistener;
if (locationclient == null) {
//初始化定位
locationclient = new amaplocationclient(this);
//初始化定位参数
locationclientoption = new amaplocationclientoption();
//设置定位回调监听
locationclient.setlocationlistener(this);
//高精度定位模式
locationclientoption.setlocationmode(amaplocationclientoption.amaplocationmode.hight_accuracy);
//单定位模式
locationclientoption.setoncelocation(true);
//设置定位参数
locationclient.setlocationoption(locationclientoption);
//启动定位
locationclient.startlocation();
}
}
/**
* 定位成功后回调函数
*/
@override
public void onlocationchanged(amaplocation amaplocation) {
if (onlocationchangedlistener != null && amaplocation != null) {
if (amaplocation.geterrorcode() == 0) {
//显示定位圆点
onlocationchangedlistener.onlocationchanged(amaplocation);
locationcoordinate.settext("当前纬度:" + amaplocation.getlatitude() + "当前经度" + amaplocation.getlongitude());
//根据当前经纬度查询地址
latlonpoint latlonpoint = new latlonpoint(amaplocation.getlatitude(), amaplocation.getlongitude());
regeocodequery query = new regeocodequery(latlonpoint, 200, geocodesearch.amap);
geocodesearch.getfromlocationasyn(query);
} else {
log.e("yyyyq", "定位失败" + amaplocation.geterrorcode() + ":" + amaplocation.geterrorinfo());
toast.maketext(getapplication(), "定位失败", toast.length_short).show();
}
}
}
/**
* 停止定位
*/
@override
public void deactivate() {
onlocationchangedlistener = null;
if (locationclient != null) {
locationclient.stoplocation();
locationclient.ondestroy();
}
}
/**
* 根据坐标转换地址信息
*/
@override
public void onregeocodesearched(regeocoderesult regeocoderesult, int i) {
if (i == amapexception.code_amap_success) {
locationinfo.settext("当前位置信息:" + regeocoderesult.getregeocodeaddress().getformataddress());
} else {
toast.maketext(getapplication(), "获取当前位置信息失败", toast.length_short).show();
}
}
/**
* 地址转坐标
*/
@override
public void ongeocodesearched(geocoderesult geocoderesult, int i) {
}
/**
* 地图点击事件
*/
@override
public void onmapclick(latlng latlng) {
if (marker != null) {
marker.remove();
}
markeroptions markeroptions = new markeroptions();
markeroptions.icon(bitmapdescriptorfactory.fromresource(r.drawable.map_icon));
markeroptions.position(latlng);
marker = amap.addmarker(markeroptions);
//根据点击地图的点位获取详细信息
locationcoordinate.settext("当前纬度:" + latlng.latitude + "当前经度" + latlng.longitude);
//根据当前经纬度查询地址
latlonpoint latlonpoint = new latlonpoint(latlng.latitude, latlng.longitude);
regeocodequery query = new regeocodequery(latlonpoint, 200, geocodesearch.amap);
geocodesearch.getfromlocationasyn(query);
}
}
2.xml布局文件
<?xml version="1.0" encoding="utf-8"?>
<relativelayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<!--地图o-->
<com.amap.api.maps.mapview
android:id="@+id/location_map"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<!--回显位置信息的布局-->
<linearlayout
android:layout_width="match_parent"
android:layout_height="140dp"
android:layout_alignparentbottom="true"
android:layout_margin="15dp"
android:alpha="0.85"
android:background="@drawable/layout_background"
android:orientation="vertical">
<textview
android:id="@+id/location_coordinate"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1.4"
android:gravity="center|left"
android:textcolor="#1a91b0"
android:textsize="16sp" />
<textview
android:id="@+id/location_info"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="2"
android:gravity="center|left|top"
android:paddingtop="10dp"
android:textcolor="#f05554"
android:textsize="16sp" />
</linearlayout>
</relativelayout>
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