Google 地图 API：当我尝试使用地图时，应用程序不断崩溃
[英]Google maps API: App keeps crashing when I try to use the map
问题描述
So I am currently trying to develop an app that needs a google map API.
所以我目前正在尝试开发一个需要谷歌地图 API 的应用程序。 Whenever I try to load the map, the app I implemented my map as a subclass of the fragment class:每当我尝试加载地图时，我将地图实现为片段类的子类的应用程序：
package io.github.danisharsalan.meetupmarker;
import android.content.Context;
import android.net.Uri;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
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.MapFragment;
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;
public class MapActivityFragment extends Fragment {
MapView mMapView;
private GoogleMap googleMap;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_map_activity, container, false);
mMapView = (MapView) rootView.findViewById(R.id.mapView);
mMapView.onCreate(savedInstanceState);
mMapView.onResume(); //needed to make map display immediately
try{
MapsInitializer.initialize(getActivity().getApplicationContext());
} catch (Exception e){
e.printStackTrace();
}
mMapView.getMapAsync(new OnMapReadyCallback() {
@Override
public void onMapReady(GoogleMap mMap) {
googleMap = mMap;
// For showing a move to my location button
//googleMap.setMyLocationEnabled(true);
// For dropping a marker at a point on the Map
LatLng sydney = new LatLng(-34, 151);
googleMap.addMarker(new MarkerOptions().position(sydney).title("Marker Title").snippet("Marker Description"));
// 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();
}
}'
and here is the xml file, titled fragment_map_activity.xml:这是名为 fragment_map_activity.xml 的 xml 文件：
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="io.github.danisharsalan.meetupmarker.MapActivityFragment">
<!-- TODO: Update blank fragment layout -->
<com.google.android.gms.maps.MapView
android:id="@+id/mapView"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</FrameLayout>
The logcat gives me this problem: logcat 给了我这个问题：
02-25 00:29:10.924 5473-5473/io.github.danisharsalan.meetupmarker E/AndroidRuntime: FATAL EXCEPTION: main Process: io.github.danisharsalan.meetupmarker, PID: 5473 java.lang.RuntimeException: API key not found.
How do I fix my API key problem?如何修复我的 API 密钥问题？ Thank you.谢谢。
EDIT: It turns out that I was simply missing my API key where It was supposed to be referenced.编辑：事实证明，我只是在应该引用它的地方丢失了我的 API 密钥。 My apologies for creating a low-quality question我为创建一个低质量的问题而道歉
1 个解决方案
解决方案1
0 已采纳 2018-02-25 06:49:04
Looks like the Google Maps API key wasn't added to the AndroidManifest file.看起来 Google Maps API 密钥没有添加到 AndroidManifest 文件中。 You can grab Google Maps API key from here您可以从这里获取 Google Maps API 密钥
Insert the API key as follows just before the closing tag </application >在结束标记之前插入 API 密钥，如下所示</application >
<meta-data
android:name="com.google.android.geo.API_KEY"
android:value="YOUR_API_KEY"/>
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