我有一个Android应用程序，当在调试模式下运行时，显示谷歌地图很好。但是当在发布模式下运行时（通过单击最左下方的菜单图标并选择Build variants - ＆gt; Release）不会显示地图。将硬编码的API密钥按照其他人在相关帖子中的建议放入manifest.xml和google_maps_api.xml中，但仍然无法正常工作。尝试运行发行版时获取数以万计的错误消息。这是一个示例：
04-23 13:31:34.562 10519-10612/? E/b? Authentication failed on the server.
04-23 13:31:34.563 10519-10612/? E/Google Maps Android API? Authorization failure. Please see https://developers.google.com/maps/documentation/android/start for how to correctly set up the map.
04-23 13:31:34.568 10519-10612/? E/Google Maps Android API? In the Google Developer Console (https://console.developers.google.com)
Ensure that the "Google Maps Android API v2" is enabled.
Ensure that the following Android Key exists:
API Key: AIzaSyDRtOnaTU1Jc-zxuirnbyNojZn9uasd7eE
Android Application (<cert_fingerprint>;<package_name>): 1D:9A:59:E7:67:94:D0:38:80:96:35:E9:A8:90:18:17:3C:56:19:4D;owner.example.com.locator
04-23 13:31:35.361 263-339/? E/Vold? Failed to find mounted volume for /storage/sdcard1/Android/data/com.apalon.weatherlive.free/cache/
04-23 13:31:35.364 263-339/? E/Vold? Failed to find mounted volume for /storage/sdcard1/Android/data/com.apalon.weatherlive.free/cache/
04-23 13:31:35.366 263-339/? E/Vold? Failed to find mounted volume for /storage/sdcard1/Android/data/com.apalon.weatherlive.free/cache/
04-23 13:31:35.572 10746-10746/? E/helpmorelib#? init
04-23 13:31:35.583 10746-10746/? A/Adjust? PRODUCTION: Adjust is running in Production mode. Use this setting only for the build that you want to publish. Set the environment to `sandbox` if you want to test your app!
04-23 13:31:35.720 10746-10787/? E/ActivityThread? Failed to find provider info for com.facebook.katana.provider.AttributionIdProvider
04-23 13:31:35.832 2119-2137/? E/DataBuffer? Internal data leak within a DataBuffer object detected! Be sure to explicitly call release() on all DataBuffer extending objects when you are done with them. (internal object: com.google.android.gms.common.data.DataHolder@2a363d32)
04-23 13:31:35.832 2119-2137/? E/DataBuffer? Internal data leak within a DataBuffer object detected! Be sure to explicitly call release() on all DataBuffer extending objects when you are done with them. (internal object: com.google.android.gms.common.data.DataHolder@6697a83)
04-23 13:31:35.832 2119-2137/? E/DataBuffer? Internal data leak within a DataBuffer object detected! Be sure to explicitly call release() on all DataBuffer extending objects when you are done with them. (internal object: com.google.android.gms.common.data.DataHolder@228f4400)
04-23 13:31:35.833 2119-2137/? E/DataBuffer? Internal data leak within a DataBuffer object detected! Be sure to explicitly call release() on all DataBuffer extending objects when you are done with them. (internal object: com.google.android.gms.common.data.DataHolder@35b82439)
04-23 13:31:35.833 2119-2137/? E/DataBuffer? Internal data leak within a DataBuffer object detected! Be sure to explicitly call release() on all DataBuffer extending objects when you are done with them. (internal object: com.google.android.gms.common.data.DataHolder@3786fa7e)
04-23 13:31:35.915 263-339/? E/Vold? Failed to find mounted volume for /storage/sdcard1/Android/data/com.apalon.weatherlive.free/cache/
04-23 13:31:35.957 263-339/? E/Vold? Failed to find mounted volume for /storage/sdcard1/Android/data/com.apalon.weatherlive.free/cache/
04-23 13:31:39.320 829-1260/? E/WifiStateMachine? WifiStateMachine CMD_START_SCAN source 10022 txSuccessRate=11.27 rxSuccessRate=10.39 targetRoamBSSID=any RSSI=-29
04-23 13:31:39.323 829-1260/? E/WifiStateMachine? [1,461,414,699,323 ms] noteScanStartWorkSource{1000} uid 10022
15666-15666/? E/GMPM? GoogleService failed to initialize, status: 10, Missing an expected resource: 'R.string.google_app_id' for initializing Google services. Possible causes are missing google-services.json or com.google.gms.google-services gradle plugin.
正如您将看到的那样，如果您查看后面的代码，那么文件中会出现错误消息引号的键。 另外，我不理解关于缺少资源的最后一条消息（上图）。
我刚刚构建了应用程序ahain，这次是在调试模式下它运行得非常好，但有趣的是我仍然收到数以万计的错误消息，几乎没有一个对我有任何意义
在调试模式下构建时，我将以下文件与相同文件进行了比较，它们看起来完全相同。关于我应该做什么的任何想法？感谢。
的AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="owner.example.com.locator" >
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
<!--
The ACCESS_COARSE/FINE_LOCATION permissions are not required to use
Google Maps Android API v2, but are recommended.
-->
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<application
android:allowBackup="true"
android:icon="@mipmap/earthicon"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<meta-data
android:name="com.google.android.gms.version"
android:value="@integer/google_play_services_version" />
<meta-data
android:name="com.google.android.maps.v2.API_KEY"
android:value="AIzaSyDRtOnaTU1Jc-zxuirnbyNojZn9uasd7eE" />
<activity
android:name=".LocateMe"
android:label="@string/title_activity_locate_me" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
主程序文件
package owner.example.com.locator;
import android.Manifest;
import android.annotation.TargetApi;
import android.content.DialogInterface;
import android.content.pm.PackageManager;
import android.location.Criteria;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Build;
import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.support.v4.app.FragmentActivity;
import android.os.Bundle;
import android.support.v7.app.AlertDialog;
import android.widget.Toast;
import java.math.BigDecimal;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;
//import com.adjust.sdk.Adjust;
//import com.adjust.sdk.AdjustConfig;
public class LocateMe extends FragmentActivity implements OnMapReadyCallback, LocationListener {
private GoogleMap mMap;
private static final int PERMISSION_REQUEST_CODE = 1340; // can be any code you want
private LocationManager mLocationManager;
Criteria criteria = new Criteria();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//String environment = AdjustConfig.ENVIRONMENT_SANDBOX;
setContentView(R.layout.activity_locate_me);
mLocationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
AppData.locman = mLocationManager;
//Criteria criteria = new Criteria();
//AppData.crit = criteria;
// Obtain the SupportMapFragment and get notified when the map is ready to be used.
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults)
{
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
switch (requestCode) {
case PERMISSION_REQUEST_CODE:
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION)
!= PackageManager.PERMISSION_GRANTED
&& ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION)
!= PackageManager.PERMISSION_GRANTED)
{
mMap.setMyLocationEnabled(true);
} else {
AlertDialog dialog = new AlertDialog.Builder(this)
.setTitle("Permission needed")
.setMessage("Sorry but we need permission to access your location")
.setPositiveButton("Grant", new DialogInterface.OnClickListener() {
@TargetApi(Build.VERSION_CODES.M)
@Override
public void onClick(DialogInterface dialog, int which) {
String[] permissions = {Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.ACCESS_COARSE_LOCATION};
requestPermissions(permissions, PERMISSION_REQUEST_CODE);
}
}).setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
finish();
}
}).create();
dialog.show();
}
}
}
/**
* Manipulates the map once available.
* This callback is triggered when the map is ready to be used.
* This is where we can add markers or lines, add listeners or move the camera. In this case,
* we just add a marker near Sydney, Australia.
* If Google Play services is not installed on the device, the user will be prompted to install
* it inside the SupportMapFragment. This method will only be triggered once the user has
* installed Google Play services and returned to the app.
*/
@TargetApi(Build.VERSION_CODES.M)
@Override
public void onMapReady(GoogleMap googleMap) {
mMap = googleMap;
mMap.setMapType(GoogleMap.MAP_TYPE_HYBRID);
mMap.getUiSettings().setMyLocationButtonEnabled(true);
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION)
!= PackageManager.PERMISSION_GRANTED
&& ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION)
!= PackageManager.PERMISSION_GRANTED)
{
String[] permissions = {Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.ACCESS_COARSE_LOCATION};
requestPermissions(permissions, PERMISSION_REQUEST_CODE);
return;
}
mMap.setMyLocationEnabled(true);
Location location = mLocationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
AppData.loc = location;
if (location != null) {
LatLng myLastPosition = new LatLng(location.getLatitude(), location.getLongitude());
mMap.moveCamera(CameraUpdateFactory.newLatLng(myLastPosition));
mMap.animateCamera(CameraUpdateFactory.zoomTo(17));
for (int i=0; i<2; i++)
{
Toast.makeText(this,
getFL(location.getLatitude(),location.getLongitude()) + "\n"
+ BigDecimal.valueOf(AppData.loc.getLatitude()).setScale(5,
BigDecimal.ROUND_HALF_UP).toPlainString() + " "
+ BigDecimal.valueOf(AppData.loc.getLongitude()).setScale(5,
BigDecimal.ROUND_HALF_UP).toPlainString(),
Toast.LENGTH_LONG).show();
};
}
mLocationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 2000, 10, this);
// Location button click listener will show Lat & Long when button clicked
mMap.setOnMyLocationButtonClickListener(new GoogleMap.OnMyLocationButtonClickListener()
{
@Override
public boolean onMyLocationButtonClick()
{
try {
AppData.loc = AppData.locman.getLastKnownLocation(AppData.locman.getBestProvider
(criteria, false));
Toast.makeText(getApplicationContext(),
getFL(AppData.loc.getLatitude(), AppData.loc.getLongitude()) + "\n"
+ BigDecimal.valueOf(AppData.loc.getLatitude()).setScale(5,
BigDecimal.ROUND_HALF_UP).toPlainString() + " "
+ BigDecimal.valueOf(AppData.loc.getLongitude()).setScale(5,
BigDecimal.ROUND_HALF_UP).toPlainString(),
Toast.LENGTH_LONG).show();
} catch (Exception e) {
e.printStackTrace();
Toast.makeText(getApplicationContext(),
"GPS Problem!",
Toast.LENGTH_LONG).show();
}
return false;
}
});
}
// And the following method is courtesy of 'abi', a StackOverflow contributor from Dubai
public static String getFL(double latitude, double longitude)
{
try {
int latSeconds = (int) Math.round(latitude * 3600);
int latDegrees = latSeconds / 3600;
latSeconds = Math.abs(latSeconds % 3600);
int latMinutes = latSeconds / 60;
latSeconds %= 60;
int longSeconds = (int) Math.round(longitude * 3600);
int longDegrees = longSeconds / 3600;
longSeconds = Math.abs(longSeconds % 3600);
int longMinutes = longSeconds / 60;
longSeconds %= 60;
String latDegree = latDegrees >= 0 ? "N" : "S";
String lonDegree = longDegrees >= 0 ? "E" : "W";
return Math.abs(latDegrees) + "° " + latMinutes + "' " + latSeconds
+ "\"" + latDegree + " " + Math.abs(longDegrees) + "° " + longMinutes
+ "' " + longSeconds + "\"" + lonDegree;
} catch (Exception e) {
return "" + String.format("%8.5f", latitude) + "\n"
+ String.format("%8.5f", longitude);
}
}
@Override
public void onLocationChanged(Location location) {
LatLng myLastPosition = new LatLng(location.getLatitude(), location.getLongitude());
mMap.moveCamera(CameraUpdateFactory.newLatLng(myLastPosition));
float zoomvalue = mMap.getCameraPosition().zoom;
mMap.animateCamera(CameraUpdateFactory.zoomTo(zoomvalue));
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
}
@Override
public void onProviderEnabled(String provider) {
}
@Override
public void onProviderDisabled(String provider) {
}
}
google_maps_api.xml文件
<resources>
<!--
TODO: Before you run your application, you need a Google Maps API key.
To get one, follow this link, follow the directions and press "Create" at the end:
https://console.developers.google.com/flows/enableapi?apiid=maps_android_backend&keyType=CLIENT_SIDE_ANDROID&r=6F:57:6E:22:FE:D8:BD:E9:C4:23:33:A9:1D:E5:C6:E9:6F:F8:5F:BD%3Bowner.example.com.locator
You can also add your credentials to an existing key, using this line:
6F:57:6E:22:FE:D8:BD:E9:C4:23:33:A9:1D:E5:C6:E9:6F:F8:5F:BD;owner.example.com.locator
Once you have your key (it starts with "AIza"), replace the "google_maps_key"
string in this file.
-->
<string name="google_maps_key" translatable="false" templateMergeStrategy="preserve">
AIzaSyDRtOnaTU1Jc-zxuirnbyNojZn9uasd7eE
</string>
</resources>
build.gradle（Module：app）文件
apply plugin: 'com.android.application'
android {
signingConfigs {
config {
keyAlias 'myreleasekey'
keyPassword 'xxxxxxxx'
storeFile file('C:/Users/Owner/AndroidStudioProjects/release.jks')
storePassword 'xxxxxxxx'
}
}
compileSdkVersion 23
buildToolsVersion "23.0.1"
useLibrary 'org.apache.http.legacy'
defaultConfig {
applicationId "owner.example.com.locator"
minSdkVersion 19
targetSdkVersion 23
versionCode 1
versionName "1.0"
signingConfig signingConfigs.config
}
buildTypes {
release {
minifyEnabled true
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
debug {
}
}
productFlavors {
}
}
dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')
compile 'com.android.support:appcompat-v7:23.0.1'
compile 'com.google.android.gms:play-services:+'
}
答案 0 :(得分：0)
在我看来你需要一个发布密钥。对于Google Maps API v2，您需要SHA-1指纹。所以：
所有这些都可以找到here
答案 1 :(得分：0)
除了SHA密钥之外，您还应在Google account中启用Maps API访问权限。点击“Google Maps Android API”，然后点击“启用”。