Android Studio谷歌地图片段
我想把谷歌地图的地图放在我的sección中,带有标记和我的位置,但当我放在这一部分时,这个应用程序关闭了。它说ERROR MapFragment.java:83“LatLng sydney=new LatLng(Float.parseFloat(“Lat”)”。 我把我的两个代码的文件: 片段映射.xmlAndroid Studio谷歌地图片段,android,google-maps,google-maps-markers,Android,Google Maps,Google Maps Markers,我想把谷歌地图的地图放在我的sección中,带有标记和我的位置,但当我放在这一部分时,这个应用程序关闭了。它说ERROR MapFragment.java:83“LatLng sydney=new LatLng(Float.parseFloat(“Lat”)”。 我把我的两个代码的文件: 片段映射.xml <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.a
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<com.google.android.gms.maps.MapView
android:id="@+id/mapView"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>
MapFragment.java
package com.example.julianrc1.petracecitm;
import android.Manifest;
import android.content.DialogInterface;
import android.content.pm.PackageManager;
import android.os.Bundle;
import android.support.v4.app.ActivityCompat;
import android.support.v4.app.Fragment;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AlertDialog;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.MapView;
import com.google.android.gms.maps.MapsInitializer;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.model.CameraPosition;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;
import java.util.ArrayList;
/**
* A simple {@link Fragment} subclass.
*/
public class MapFragment extends Fragment {
public MapFragment() {
// Required empty public constructor
}
MapView mMapView;
private GoogleMap googleMap;
ArrayList<LatLng> markerPoints;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
{
View rootView = inflater.inflate(R.layout.fragment_map, container, false);
mMapView= (MapView) rootView.findViewById(R.id.mapView);
mMapView.onCreate(savedInstanceState);
mMapView.onResume();
try {
MapsInitializer.initialize(getActivity().getApplicationContext());
} catch (Exception e) {
e.printStackTrace();
}
mMapView.getMapAsync(new OnMapReadyCallback() {
@Override
public void onMapReady(GoogleMap mMap) {
googleMap = mMap;
if (checkLocationPermission()) {
if (ContextCompat.checkSelfPermission(getActivity(),
Manifest.permission.ACCESS_FINE_LOCATION)
== PackageManager.PERMISSION_GRANTED) {
//Request location updates:
googleMap.setMyLocationEnabled(true);
}
}
markerPoints = new ArrayList<LatLng>();
googleMap.getUiSettings().setCompassEnabled(true);
googleMap.getUiSettings().setMyLocationButtonEnabled(true);
googleMap.getUiSettings().setRotateGesturesEnabled(true);
// For dropping a marker at a point on the Map
LatLng sydney = new LatLng(Float.parseFloat("Lat"), Float.parseFloat("Long"));
googleMap.addMarker(new MarkerOptions().position(sydney).
title("Title").snippet("TitleName"));
// For zooming automatically to the location of the marker
CameraPosition cameraPosition = new CameraPosition.Builder().target(sydney).zoom(12).build();
googleMap.animateCamera(CameraUpdateFactory.newCameraPosition
(cameraPosition ));
}
});
return rootView;
}
@Override
public void onResume() {
super.onResume();
mMapView.onResume();
}
@Override
public void onPause() {
super.onPause();
mMapView.onPause();
}
@Override
public void onDestroy() {
super.onDestroy();
mMapView.onDestroy();
}
@Override
public void onLowMemory() {
super.onLowMemory();
mMapView.onLowMemory();
}
public boolean checkLocationPermission() {
if (ContextCompat.checkSelfPermission(getActivity(),
Manifest.permission.ACCESS_FINE_LOCATION)
!= PackageManager.PERMISSION_GRANTED) {
// Should we show an explanation?
if (ActivityCompat.shouldShowRequestPermissionRationale(getActivity(),
Manifest.permission.ACCESS_FINE_LOCATION)) {
// Show an explanation to the user *asynchronously* -- don't block
// this thread waiting for the user's response! After the user
// sees the explanation, try again to request the permission.
new AlertDialog.Builder(getActivity())
.setTitle("")
.setMessage("")
.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
//Prompt the user once explanation has been shown
ActivityCompat.requestPermissions(getActivity(),new String[]
{Manifest.permission.ACCESS_FINE_LOCATION},1);
}
})
.create()
.show();
} else {
// No explanation needed, we can request the permission.
ActivityCompat.requestPermissions(getActivity(),
new String[]{Manifest.permission.ACCESS_FINE_LOCATION},
1);
}
return false;
} else {
return true;
}
}
@Override
public void onRequestPermissionsResult(int requestCode,
String permissions[], int[] grantResults) {
switch (requestCode) {
case 1:
{
// If request is cancelled, the result arrays are empty.
if (grantResults.length > 0
&& grantResults[0] == PackageManager.PERMISSION_GRANTED) {
// permission was granted, yay! Do the
// location-related task you need to do.
if (ContextCompat.checkSelfPermission(getActivity(),
Manifest.permission.ACCESS_FINE_LOCATION)
== PackageManager.PERMISSION_GRANTED) {
googleMap.setMyLocationEnabled(true);
}
} else {
}
return;
}
}
}
}
package com.example.julianc1.petracecitm;
导入android.Manifest;
导入android.content.DialogInterface;
导入android.content.pm.PackageManager;
导入android.os.Bundle;
导入android.support.v4.app.ActivityCompat;
导入android.support.v4.app.Fragment;
导入android.support.v4.content.ContextCompat;
导入android.support.v7.app.AlertDialog;
导入android.view.LayoutInflater;
导入android.view.view;
导入android.view.ViewGroup;
导入com.google.android.gms.maps.CameraUpdateFactory;
导入com.google.android.gms.maps.GoogleMap;
导入com.google.android.gms.maps.MapView;
导入com.google.android.gms.maps.mapsintializer;
导入com.google.android.gms.maps.OnMapReadyCallback;
导入com.google.android.gms.maps.model.CameraPosition;
导入com.google.android.gms.maps.model.LatLng;
导入com.google.android.gms.maps.model.MarkerOptions;
导入java.util.ArrayList;
/**
*一个简单的{@link Fragment}子类。
*/
公共类MapFragment扩展了片段{
公共映射片段(){
//必需的空公共构造函数
}
地图视图;
私人谷歌地图谷歌地图;
ArrayList markerPoints;
@凌驾
CreateView上的公共视图(布局、充气机、视图组容器、捆绑包保存状态)
{
视图根视图=充气机。充气(R.layout.fragment\u map,container,false);
mMapView=(MapView)rootView.findviewbyd(R.id.MapView);
mMapView.onCreate(savedInstanceState);
mMapView.onResume();
试一试{
初始化(getActivity().getApplicationContext());
}捕获(例外e){
e、 printStackTrace();
}
mMapView.getMapAsync(新的OnMapReadyCallback(){
@凌驾
4月1日公开作废(谷歌地图mMap){
谷歌地图=mMap;
if(checkLocationPermission()){
if(ContextCompat.checkSelfPermission(getActivity()),
清单.权限.访问(位置)
==PackageManager.权限(已授予){
//请求位置更新:
googleMap.setMyLocationEnabled(true);
}
}
markerPoints=newarraylist();
googleMap.getUiSettings().setCompassEnabled(true);
googleMap.getUiSettings().setMyLocationButtonEnabled(true);
googleMap.getUiSettings().setRotategestureEnabled(true);
//用于在地图上的某个点放置标记
LatLng sydney=新的LatLng(Float.parseFloat(“Lat”)、Float.parseFloat(“Long”);
googleMap.addMarker(新标记选项().position(悉尼)。
标题(“标题”)。片段(“标题名”);
//用于自动缩放到标记的位置
CameraPosition CameraPosition=新建CameraPosition.Builder().target(悉尼).zoom(12.build();
googleMap.animateCamera(CameraUpdateFactory.newCameraPosition
(摄像定位);
}
});
返回rootView;
}
@凌驾
恢复时公开作废(){
super.onResume();
mMapView.onResume();
}
@凌驾
公共无效暂停(){
super.onPause();
mMapView.onPause();
}
@凌驾
公共空间{
super.ondestory();
mMapView.onDestroy();
}
@凌驾
public void onLowMemory(){
super.onLowMemory();
mMapView.onLowMemory();
}
公共布尔值checkLocationPermission(){
if(ContextCompat.checkSelfPermission(getActivity()),
清单.权限.访问(位置)
!=PackageManager.权限(已授予){
//我们应该解释一下吗?
如果(ActivityCompat.shouldShowRequestPermissionRegulation)(getActivity(),
清单.权限.访问(位置){
//向用户显示解释*异步*--不阻止
//此线程正在等待用户的响应!在用户
//请查看说明,然后重试请求权限。
新建AlertDialog.Builder(getActivity())
.setTitle(“”)
.setMessage(“”)
.setPositiveButton(“确定”,新的DialogInterface.OnClickListener(){
@凌驾
公共void onClick(DialogInterface,inti){
//显示说明后提示用户
ActivityCompat.requestPermissions(getActivity(),新字符串[]
{Manifest.permission.ACCESS_FINE_LOCATION},1);
}
})
.create()
.show();
}否则{
//不需要解释,我们可以申请许可。
ActivityCompat.requestPermissions(getActivity(),
新字符串[]{Manifest.permission.ACCESS\u FINE\u LOCATION},
1);
}
返回false;
}否则{
返回true;
}
}
@凌驾
公共v
LatLng sydney = new LatLng(Float.parseFloat("Lat")
LatLng sydney = new LatLng(33.8688,151.2093)