0

我浏览了 android 开发人员指南和 youtube 指南，还检查了此处提出的其他类似问题，但仍然无法在 Nexus 7 上加载地图。

我正在尝试构建一个应用程序，该应用程序稍后将突出显示我所在地区的本地企业，但首先需要能够加载地图。每次我尝试在设备上运行它时，它都会发出“不幸的是，[app] 已停止”的通知。

这是我的代码：

显现：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.bloomingtonfirst"
android:versionCode="1"
android:versionName="1.0" >

    <permission
    android:name="com.example.bloomingtonfirst.permission.MAPS_RECEIVE"
    android:protectionLevel="signature"/>
<uses-permission   
android:name="com.example.bloomingtonfirst.permission.MAPS_RECEIVE"/>

<uses-sdk
    android:minSdkVersion="8"
    android:targetSdkVersion="17"/>
    <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-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>

    <uses-feature
    android:glEsVersion="0x00020000"
    android:required="true"/>

<application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
<meta-data
    android:name="come.google.android.maps.v2.API_KEY"
    android:value="super_secret_key"/>
    <activity
        android:name="com.example.bloomingtonfirst.MainActivity"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
</application>
</manifest>

活动主.xml： 

<RelativeLayout 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=".MainActivity" >

    <fragment
    android:id="@+id/map"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    class="com.google.android.gms.maps.SupportMapFragment" />

</RelativeLayout>

主要活动.java：

import android.os.Bundle;
import android.support.v4.app.FragmentActivity;

import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.SupportMapFragment;

public class MainActivity extends FragmentActivity{

SupportMapFragment mMap;
GoogleMap googleMap;

  @Override
 protected void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

       mMap = (SupportMapFragment) getSupportFragmentManager()
        .findFragmentById(R.id.map);

        googleMap = mMap.getMap();
 }
}

日志猫：

03-19 16:25:55.620: D/dalvikvm(16340): GC_CONCURRENT freed 256K, 6% free 7463K/7864K, paused 2ms+1ms, total 22ms
03-19 16:25:55.660: D/AndroidRuntime(16340): Shutting down VM
03-19 16:25:55.660: W/dalvikvm(16340): threadid=1: thread exiting with uncaught exception (group=0x40d26930)
03-19 16:25:55.660: E/AndroidRuntime(16340): FATAL EXCEPTION: main
03-19 16:25:55.660: E/AndroidRuntime(16340): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.bloomingtonfirst/com.example.bloomingtonfirst.MainActivity}: android.view.InflateException: Binary XML file line #9: Error inflating class fragment
03-19 16:25:55.660: E/AndroidRuntime(16340):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at android.app.ActivityThread.access$600(ActivityThread.java:141)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at android.os.Handler.dispatchMessage(Handler.java:99)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at android.os.Looper.loop(Looper.java:137)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at android.app.ActivityThread.main(ActivityThread.java:5041)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at java.lang.reflect.Method.invokeNative(Native Method)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at java.lang.reflect.Method.invoke(Method.java:511)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at dalvik.system.NativeStart.main(Native Method)
03-19 16:25:55.660: E/AndroidRuntime(16340): Caused by: android.view.InflateException: Binary XML file line #9: Error inflating class fragment
03-19 16:25:55.660: E/AndroidRuntime(16340):    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at android.view.LayoutInflater.rInflate(LayoutInflater.java:746)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at android.view.LayoutInflater.inflate(LayoutInflater.java:352)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:270)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at android.app.Activity.setContentView(Activity.java:1881)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at com.example.bloomingtonfirst.MainActivity.onCreate(MainActivity.java:17)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at android.app.Activity.performCreate(Activity.java:5104)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144)
03-19 16:25:55.660: E/AndroidRuntime(16340):    ... 11 more
03-19 16:25:55.660: E/AndroidRuntime(16340): Caused by: java.lang.RuntimeException: API key not found.  Check that <meta-data android:name="com.google.android.maps.v2.API_KEY" android:value="your API key"/> is in the <application> element of AndroidManifest.xml
03-19 16:25:55.660: E/AndroidRuntime(16340):    at maps.z.ab.a(Unknown Source)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at maps.z.ab.a(Unknown Source)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at maps.z.ab.a(Unknown Source)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at maps.z.ag.a(Unknown Source)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at maps.z.ag.a(Unknown Source)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at maps.z.bw.a(Unknown Source)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at maps.z.r.onCreateView(Unknown Source)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at com.google.android.gms.maps.internal.IMapFragmentDelegate$Stub.onTransact(IMapFragmentDelegate.java:107)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at android.os.Binder.transact(Binder.java:310)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at com.google.android.gms.maps.internal.IMapFragmentDelegate$a$a.onCreateView(Unknown Source)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at com.google.android.gms.maps.SupportMapFragment$a.onCreateView(Unknown Source)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at com.google.android.gms.internal.e$4.a(Unknown Source)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at com.google.android.gms.internal.e.a(Unknown Source)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at com.google.android.gms.internal.e.onCreateView(Unknown Source)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at com.google.android.gms.maps.SupportMapFragment.onCreateView(Unknown Source)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at android.support.v4.app.Fragment.performCreateView(Fragment.java:1460)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:884)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1066)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at android.support.v4.app.FragmentManagerImpl.addFragment(FragmentManager.java:1168)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:280)
03-19 16:25:55.660: E/AndroidRuntime(16340):    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:676)
03-19 16:25:55.660: E/AndroidRuntime(16340):    ... 21 more

任何帮助的尝试将不胜感激。

4

2 回答 2

1

改变：

class="com.google.android.gms.maps.MapFragment"

到：

class="com.google.android.gms.maps.SupportMapFragment"

您在导入com.google.android.gms.maps.SupportMapFragment和使用它的代码中得到 ClassCastException，但在您的 XML 中使用com.google.android.gms.maps.MapFragment.

于 2013-03-19T20:05:27.343 回答
1

更改android:name="come.google.android.maps.v2.API_KEY" 为android:name="com.google.android.maps.v2.API_KEY"（来到 com）。

于 2013-03-20T00:28:35.950 回答