【发布时间】：2015-03-20 23:41:47
【问题描述】：
我的应用程序昨天工作了，我不知道它为什么停止工作。我唯一尝试做的就是创建一个签名的 apk。为此，我必须创建一个新的 Google 地图密钥并将其放入清单文件中。我是按照 Google 开发人员教程完成的。但是现在当我尝试运行它启动的应用程序时，我单击一个按钮并强制关闭。
这是错误日志：
03-20 23:31:33.636 10036-10036/project.sharethefare E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: project.sharethefare, PID: 10036
java.lang.RuntimeException: Unable to start activity ComponentInfo{project.sharethefare/project.sharethefare.CurrentLocation}: android.view.InflateException: Binary XML file line #9: Error inflating class fragment
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2658)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2725)
at android.app.ActivityThread.access$900(ActivityThread.java:172)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1422)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:5834)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1388)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1183)
Caused by: android.view.InflateException: Binary XML file line #9: Error inflating class fragment
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:770)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:813)
at android.view.LayoutInflater.inflate(LayoutInflater.java:511)
at android.view.LayoutInflater.inflate(LayoutInflater.java:415)
at android.view.LayoutInflater.inflate(LayoutInflater.java:366)
at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:428)
at android.app.Activity.setContentView(Activity.java:2241)
at project.sharethefare.CurrentLocation.onCreate(CurrentLocation.java:24)
at android.app.Activity.performCreate(Activity.java:6221)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1119)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2611)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2725)
at android.app.ActivityThread.access$900(ActivityThread.java:172)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1422)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:5834)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1388)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1183)
Caused by: java.lang.RuntimeException: The API key can only be specified once. It is recommended that you use the meta-data tag with the name: com.google.android.maps.v2.API_KEY in the <application> element of AndroidManifest.xml
at com.google.maps.api.android.lib6.gmm6.c.g.a(Unknown Source)
at com.google.maps.api.android.lib6.c.i.a(Unknown Source)
at com.google.maps.api.android.lib6.c.el.a(Unknown Source)
at com.google.maps.api.android.lib6.c.ab.a(Unknown Source)
at com.google.maps.api.android.lib6.c.aa.a(Unknown Source)
at com.google.android.gms.maps.internal.x.onTransact(SourceFile:107)
at android.os.Binder.transact(Binder.java:380)
at com.google.android.gms.maps.internal.IMapFragmentDelegate$a$a.onCreateView(Unknown Source)
at com.google.android.gms.maps.SupportMapFragment$a.onCreateView(Unknown Source)
at com.google.android.gms.dynamic.a$4.b(Unknown Source)
at com.google.android.gms.dynamic.a.a(Unknown Source)
at com.google.android.gms.dynamic.a.onCreateView(Unknown Source)
at com.google.android.gms.maps.SupportMapFragment.onCreateView(Unknown Source)
at android.support.v4.app.Fragment.performCreateView(Fragment.java:1786)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:920)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1104)
at android.support.v4.app.FragmentManagerImpl.addFragment(FragmentManager.java:1206)
at android.support.v4.app.FragmentManagerImpl.onCreateView(FragmentManager.java:2159)
at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:297)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:734)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:813)
at android.view.LayoutInflater.inflate(LayoutInflater.java:511)
at android.view.LayoutInflater.inflate(LayoutInflater.java:415)
at android.view.LayoutInflater.inflate(LayoutInflater.java:366)
at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:428)
at android.app.Activity.setContentView(Activity.java:2241)
at project.sharethefare.CurrentLocation.onCreate(CurrentLocation.java:24)
at android.app.Activity.performCreate(Activity.java:6221)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1119)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2611)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2725)
at android.app.ActivityThread.access$900(ActivityThread.java:172)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1422)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:5834)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1388)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1183)
这是 CurrentLocation 类：
package project.sharethefare;
import android.content.Intent;
import android.support.v4.app.FragmentActivity;
import android.os.Bundle;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.LatLng;
import android.location.Location;
import android.view.View;
public class CurrentLocation extends FragmentActivity {
private GoogleMap mMap; // Might be null if Google Play services APK is not available.
//________________________________________________________________________________________
@Override
protected void onCreate(Bundle savedInstanceState) { //auto generated
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_current_location);
setUpMapIfNeeded(); //part of google maps api
mMap.setMyLocationEnabled(true); //creates a new HomeScreen
}
@Override
protected void onResume() { //Auto Generated
super.onResume();
setUpMapIfNeeded(); //set up map if not already created
}
/**
* Sets up the map if it is possible to do so (i.e., the Google Play services APK is correctly
* installed) and the map has not already been instantiated.. This will ensure that we only ever
* call {@link #setUpMap()} once when {@link #mMap} is not null.
* <p/>
* If it isn't installed {@link SupportMapFragment} (and
* {@link com.google.android.gms.maps.MapView MapView}) will show a prompt for the user to
* install/update the Google Play services APK on their device.
* <p/>
* A user can return to this FragmentActivity after following the prompt and correctly
* installing/updating/enabling the Google Play services. Since the FragmentActivity may not
* have been completely destroyed during this process (it is likely that it would only be
* stopped or paused), {@link #onCreate(Bundle)} may not be called again so we should call this
* method in {@link #onResume()} to guarantee that it will be called.
*/
private void setUpMapIfNeeded() {
// Do a null check to confirm that we have not already instantiated the map.
if (mMap == null) {
// Try to obtain the map from the SupportMapFragment.
mMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.curLocMap))
.getMap();
// Check if we were successful in obtaining the map.
if (mMap != null) {
setUpMap();
}
}
}
/**
* This is where we can add markers or lines, add listeners or move the camera. In this case, we
* just add a marker near Africa.
* <p/>
* This should only be called once and when we are sure that {@link #mMap} is not null.
*/
//call the method to continuously check current location
private void setUpMap() {
mMap.setOnMyLocationChangeListener(myLocationChangeListener);
}
//called above. Used to constantly update the users position on the map
private GoogleMap.OnMyLocationChangeListener myLocationChangeListener = new GoogleMap.OnMyLocationChangeListener() {
@Override
public void onMyLocationChange(Location location) {
//create a new latitude and longitude point
LatLng loc = new LatLng(location.getLatitude(), location.getLongitude());
//make global variables on home screen == to current location
HomeScreen.curLat = location.getLatitude();
HomeScreen.curLong = location.getLongitude();
HomeScreen.curLocSet = true;
//animate the camera to zoom in on position when found
mMap.animateCamera(CameraUpdateFactory.newLatLngZoom(loc, 16.0f));
}
};
public void backToHome(View view){ // called when button clicked. returns to homeScreen activity
Intent intent = new Intent(CurrentLocation.this,HomeScreen.class);
startActivity(intent);
}
}
这是对应的xml文件：
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:gravity="center"
xmlns:android="http://schemas.android.com/apk/res/android"
android:background="#000">
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_marginTop="60dp"
android:layout_marginBottom="50dp"
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:id="@+id/curLocMap"
tools:context="project.sharethefare.CurrentLocation"
android:name="com.google.android.gms.maps.SupportMapFragment"/>
<Button
android:layout_width="wrap_content"
android:layout_height="50dp"
android:layout_marginLeft="30dp"
android:layout_marginRight="30dp"
android:layout_marginBottom="70dp"
android:text="@string/set_Cur_Loc"
android:textSize="20sp"
android:onClick="backToHome"
android:background="@drawable/button_design"
android:textStyle="bold"/>
</LinearLayout>
这是清单文件：
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="project.sharethefare" >
<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" />
<uses-feature
android:glEsVersion="0x00020000"
android:required="true" />
<!--
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="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".HomeScreen"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
</intent-filter>
</activity>
<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="" />
<activity
android:name=".CurrentLocation"
android:label="@string/title_activity_current_location" >
</activity>
<activity
android:name=".Destination"
android:label="@string/title_activity_maps" >
</activity>
<activity
android:name=".Share"
android:label="@string/title_activity_share" >
</activity>
<activity
android:name=".SplashScreen"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<meta-data
android:name="com.google.android.geo.API_KEY"
android:value=""/>
</application>
</manifest>
【问题讨论】：
-
Caused by: java.lang.RuntimeException: API key 只能指定一次。建议您在 AndroidManifest.xml 的
元素中使用元数据标签，名称为：com.google.android.maps.v2.API_KEY
标签： java android google-maps