使用 Google API V2 时应用程序不断崩溃

【问题标题】：App keeps crashing when using Google API V2使用 Google API V2 时应用程序不断崩溃
【发布时间】：2012-12-21 06:45:15
【问题描述】：

我正在尝试使用 Google API V2 在我的 Android 应用程序中使用 Google Map；我在我的 HTC 渴望手机上尝试了该应用程序，但它一直在崩溃。我尝试将项目构建目标更改为 Android 2.2 和 Android 4.2，但仍然没有运气。我还将 android-support-v4.jar 添加到我的项目中。我已经尝试关注这些Link

这是我的代码：

googleMaps.manifest

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

    <permission
        android:name="com.luiz.googleMaps.permission.MAPS_RECEIVE"
        android:protectionLevel="signature" />

    <uses-permission android:name="com.luiz.googleMaps.permission.MAPS_RECEIVE" />

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="8" />

    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
    <!-- External storage for caching. -->
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <!-- My Location -->
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    <!-- Maps API needs OpenGL ES 2.0. -->
    <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="com.google.android.maps.v2.API_KEY"
            android:value="I have used my keys;com.luiz.googleMaps" />

        <activity
            android:name="com.luiz.googleMaps.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>

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
  android:id="@+id/map"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  class="com.google.android.gms.maps.SuppportMapFragment"/>

MainActivity

package com.luiz.googleMaps;

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

import android.os.Bundle;

public class MainActivity extends android.support.v4.app.FragmentActivity {

    private GoogleMap map;

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

        map = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map)).getMap();
    }
}

LogCat 错误：

12-21 06:08:30.734: D/dalvikvm(7102): GC_EXTERNAL_ALLOC freed 54K, 50% free 2692K/5379K, external 0K/0K, paused 93ms
12-21 06:08:30.754: E/ActivityThread(7102): Failed to inflate
12-21 06:08:30.754: E/ActivityThread(7102): android.view.InflateException: Binary XML file line #2: Error inflating class fragment
12-21 06:08:30.754: E/ActivityThread(7102):     at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:587)
12-21 06:08:30.754: E/ActivityThread(7102):     at android.view.LayoutInflater.inflate(LayoutInflater.java:386)
12-21 06:08:30.754: E/ActivityThread(7102):     at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
12-21 06:08:30.754: E/ActivityThread(7102):     at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
12-21 06:08:30.754: E/ActivityThread(7102):     at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:213)
12-21 06:08:30.754: E/ActivityThread(7102):     at android.app.Activity.setContentView(Activity.java:1657)
12-21 06:08:30.754: E/ActivityThread(7102):     at com.luiz.googleMaps.MainActivity.onCreate(MainActivity.java:31)
12-21 06:08:30.754: E/ActivityThread(7102):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
12-21 06:08:30.754: E/ActivityThread(7102):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1722)
12-21 06:08:30.754: E/ActivityThread(7102):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1784)
12-21 06:08:30.754: E/ActivityThread(7102):     at android.app.ActivityThread.access$1500(ActivityThread.java:123)
12-21 06:08:30.754: E/ActivityThread(7102):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:939)
12-21 06:08:30.754: E/ActivityThread(7102):     at android.os.Handler.dispatchMessage(Handler.java:99)
12-21 06:08:30.754: E/ActivityThread(7102):     at android.os.Looper.loop(Looper.java:130)
12-21 06:08:30.754: E/ActivityThread(7102):     at android.app.ActivityThread.main(ActivityThread.java:3835)
12-21 06:08:30.754: E/ActivityThread(7102):     at java.lang.reflect.Method.invokeNative(Native Method)
12-21 06:08:30.754: E/ActivityThread(7102):     at java.lang.reflect.Method.invoke(Method.java:507)
12-21 06:08:30.754: E/ActivityThread(7102):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:864)
12-21 06:08:30.754: E/ActivityThread(7102):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:622)
12-21 06:08:30.754: E/ActivityThread(7102):     at dalvik.system.NativeStart.main(Native Method)
12-21 06:08:30.754: E/ActivityThread(7102): Caused by: android.support.v4.app.Fragment$InstantiationException: Unable to instantiate fragment com.google.android.gms.maps.SuppportMapFragment: make sure class name exists, is public, and has an empty constructor that is public
12-21 06:08:30.754: E/ActivityThread(7102):     at android.support.v4.app.Fragment.instantiate(Fragment.java:401)
12-21 06:08:30.754: E/ActivityThread(7102):     at android.support.v4.app.Fragment.instantiate(Fragment.java:369)
12-21 06:08:30.754: E/ActivityThread(7102):     at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:272)
12-21 06:08:30.754: E/ActivityThread(7102):     at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:563)
12-21 06:08:30.754: E/ActivityThread(7102):     ... 19 more
12-21 06:08:30.754: E/ActivityThread(7102): Caused by: java.lang.ClassNotFoundException: com.google.android.gms.maps.SuppportMapFragment in loader dalvik.system.PathClassLoader[/data/app/com.luiz.googleMaps-2.apk]
12-21 06:08:30.754: E/ActivityThread(7102):     at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:240)
12-21 06:08:30.754: E/ActivityThread(7102):     at java.lang.ClassLoader.loadClass(ClassLoader.java:551)
12-21 06:08:30.754: E/ActivityThread(7102):     at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
12-21 06:08:30.754: E/ActivityThread(7102):     at android.support.v4.app.Fragment.instantiate(Fragment.java:391)
12-21 06:08:30.754: E/ActivityThread(7102):     ... 22 more
12-21 06:08:30.764: D/AndroidRuntime(7102): Shutting down VM
12-21 06:08:30.764: W/dalvikvm(7102): threadid=1: thread exiting with uncaught exception (group=0x40128560)
12-21 06:08:30.764: E/AndroidRuntime(7102): FATAL EXCEPTION: main
12-21 06:08:30.764: E/AndroidRuntime(7102): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.luiz.googleMaps/com.luiz.googleMaps.MainActivity}: android.view.InflateException: Binary XML file line #2: Error inflating class fragment
12-21 06:08:30.764: E/AndroidRuntime(7102):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1768)
12-21 06:08:30.764: E/AndroidRuntime(7102):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1784)
12-21 06:08:30.764: E/AndroidRuntime(7102):     at android.app.ActivityThread.access$1500(ActivityThread.java:123)
12-21 06:08:30.764: E/AndroidRuntime(7102):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:939)
12-21 06:08:30.764: E/AndroidRuntime(7102):     at android.os.Handler.dispatchMessage(Handler.java:99)
12-21 06:08:30.764: E/AndroidRuntime(7102):     at android.os.Looper.loop(Looper.java:130)
12-21 06:08:30.764: E/AndroidRuntime(7102):     at android.app.ActivityThread.main(ActivityThread.java:3835)
12-21 06:08:30.764: E/AndroidRuntime(7102):     at java.lang.reflect.Method.invokeNative(Native Method)
12-21 06:08:30.764: E/AndroidRuntime(7102):     at java.lang.reflect.Method.invoke(Method.java:507)
12-21 06:08:30.764: E/AndroidRuntime(7102):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:864)
12-21 06:08:30.764: E/AndroidRuntime(7102):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:622)
12-21 06:08:30.764: E/AndroidRuntime(7102):     at dalvik.system.NativeStart.main(Native Method)
12-21 06:08:30.764: E/AndroidRuntime(7102): Caused by: android.view.InflateException: Binary XML file line #2: Error inflating class fragment
12-21 06:08:30.764: E/AndroidRuntime(7102):     at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:587)
12-21 06:08:30.764: E/AndroidRuntime(7102):     at android.view.LayoutInflater.inflate(LayoutInflater.java:386)
12-21 06:08:30.764: E/AndroidRuntime(7102):     at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
12-21 06:08:30.764: E/AndroidRuntime(7102):     at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
12-21 06:08:30.764: E/AndroidRuntime(7102):     at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:213)
12-21 06:08:30.764: E/AndroidRuntime(7102):     at android.app.Activity.setContentView(Activity.java:1657)
12-21 06:08:30.764: E/AndroidRuntime(7102):     at com.luiz.googleMaps.MainActivity.onCreate(MainActivity.java:31)
12-21 06:08:30.764: E/AndroidRuntime(7102):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
12-21 06:08:30.764: E/AndroidRuntime(7102):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1722)
12-21 06:08:30.764: E/AndroidRuntime(7102):     ... 11 more
12-21 06:08:30.764: E/AndroidRuntime(7102): Caused by: android.support.v4.app.Fragment$InstantiationException: Unable to instantiate fragment com.google.android.gms.maps.SuppportMapFragment: make sure class name exists, is public, and has an empty constructor that is public
12-21 06:08:30.764: E/AndroidRuntime(7102):     at android.support.v4.app.Fragment.instantiate(Fragment.java:401)
12-21 06:08:30.764: E/AndroidRuntime(7102):     at android.support.v4.app.Fragment.instantiate(Fragment.java:369)
12-21 06:08:30.764: E/AndroidRuntime(7102):     at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:272)
12-21 06:08:30.764: E/AndroidRuntime(7102):     at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:563)
12-21 06:08:30.764: E/AndroidRuntime(7102):     ... 19 more
12-21 06:08:30.764: E/AndroidRuntime(7102): Caused by: java.lang.ClassNotFoundException: com.google.android.gms.maps.SuppportMapFragment in loader dalvik.system.PathClassLoader[/data/app/com.luiz.googleMaps-2.apk]
12-21 06:08:30.764: E/AndroidRuntime(7102):     at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:240)
12-21 06:08:30.764: E/AndroidRuntime(7102):     at java.lang.ClassLoader.loadClass(ClassLoader.java:551)
12-21 06:08:30.764: E/AndroidRuntime(7102):     at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
12-21 06:08:30.764: E/AndroidRuntime(7102):     at android.support.v4.app.Fragment.instantiate(Fragment.java:391)
12-21 06:08:30.764: E/AndroidRuntime(7102):     ... 22 more
12-21 06:08:36.299: I/Process(7102): Sending signal. PID: 7102 SIG: 9
12-21 06:18:46.745: D/dalvikvm(7174): GC_EXTERNAL_ALLOC freed 55K, 50% free 2691K/5379K, external 0K/0K, paused 45ms
12-21 06:18:46.765: E/ActivityThread(7174): Failed to inflate
12-21 06:18:46.765: E/ActivityThread(7174): android.view.InflateException: Binary XML file line #2: Error inflating class fragment
12-21 06:18:46.765: E/ActivityThread(7174):     at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:587)
12-21 06:18:46.765: E/ActivityThread(7174):     at android.view.LayoutInflater.inflate(LayoutInflater.java:386)
12-21 06:18:46.765: E/ActivityThread(7174):     at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
12-21 06:18:46.765: E/ActivityThread(7174):     at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
12-21 06:18:46.765: E/ActivityThread(7174):     at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:213)
12-21 06:18:46.765: E/ActivityThread(7174):     at android.app.Activity.setContentView(Activity.java:1657)
12-21 06:18:46.765: E/ActivityThread(7174):     at com.luiz.googleMaps.MainActivity.onCreate(MainActivity.java:15)
12-21 06:18:46.765: E/ActivityThread(7174):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
12-21 06:18:46.765: E/ActivityThread(7174):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1722)
12-21 06:18:46.765: E/ActivityThread(7174):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1784)
12-21 06:18:46.765: E/ActivityThread(7174):     at android.app.ActivityThread.access$1500(ActivityThread.java:123)
12-21 06:18:46.765: E/ActivityThread(7174):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:939)
12-21 06:18:46.765: E/ActivityThread(7174):     at android.os.Handler.dispatchMessage(Handler.java:99)
12-21 06:18:46.765: E/ActivityThread(7174):     at android.os.Looper.loop(Looper.java:130)
12-21 06:18:46.765: E/ActivityThread(7174):     at android.app.ActivityThread.main(ActivityThread.java:3835)
12-21 06:18:46.765: E/ActivityThread(7174):     at java.lang.reflect.Method.invokeNative(Native Method)
12-21 06:18:46.765: E/ActivityThread(7174):     at java.lang.reflect.Method.invoke(Method.java:507)
12-21 06:18:46.765: E/ActivityThread(7174):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:864)
12-21 06:18:46.765: E/ActivityThread(7174):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:622)
12-21 06:18:46.765: E/ActivityThread(7174):     at dalvik.system.NativeStart.main(Native Method)
12-21 06:18:46.765: E/ActivityThread(7174): Caused by: android.support.v4.app.Fragment$InstantiationException: Unable to instantiate fragment com.google.android.gms.maps.SuppportMapFragment: make sure class name exists, is public, and has an empty constructor that is public
12-21 06:18:46.765: E/ActivityThread(7174):     at android.support.v4.app.Fragment.instantiate(Fragment.java:401)
12-21 06:18:46.765: E/ActivityThread(7174):     at android.support.v4.app.Fragment.instantiate(Fragment.java:369)
12-21 06:18:46.765: E/ActivityThread(7174):     at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:272)
12-21 06:18:46.765: E/ActivityThread(7174):     at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:563)
12-21 06:18:46.765: E/ActivityThread(7174):     ... 19 more
12-21 06:18:46.765: E/ActivityThread(7174): Caused by: java.lang.ClassNotFoundException: com.google.android.gms.maps.SuppportMapFragment in loader dalvik.system.PathClassLoader[/data/app/com.luiz.googleMaps-1.apk]
12-21 06:18:46.765: E/ActivityThread(7174):     at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:240)
12-21 06:18:46.765: E/ActivityThread(7174):     at java.lang.ClassLoader.loadClass(ClassLoader.java:551)
12-21 06:18:46.765: E/ActivityThread(7174):     at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
12-21 06:18:46.765: E/ActivityThread(7174):     at android.support.v4.app.Fragment.instantiate(Fragment.java:391)
12-21 06:18:46.765: E/ActivityThread(7174):     ... 22 more
12-21 06:18:46.775: D/AndroidRuntime(7174): Shutting down VM
12-21 06:18:46.775: W/dalvikvm(7174): threadid=1: thread exiting with uncaught exception (group=0x40128560)
12-21 06:18:46.775: E/AndroidRuntime(7174): FATAL EXCEPTION: main
12-21 06:18:46.775: E/AndroidRuntime(7174): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.luiz.googleMaps/com.luiz.googleMaps.MainActivity}: android.view.InflateException: Binary XML file line #2: Error inflating class fragment
12-21 06:18:46.775: E/AndroidRuntime(7174):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1768)
12-21 06:18:46.775: E/AndroidRuntime(7174):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1784)
12-21 06:18:46.775: E/AndroidRuntime(7174):     at android.app.ActivityThread.access$1500(ActivityThread.java:123)
12-21 06:18:46.775: E/AndroidRuntime(7174):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:939)
12-21 06:18:46.775: E/AndroidRuntime(7174):     at android.os.Handler.dispatchMessage(Handler.java:99)
12-21 06:18:46.775: E/AndroidRuntime(7174):     at android.os.Looper.loop(Looper.java:130)
12-21 06:18:46.775: E/AndroidRuntime(7174):     at android.app.ActivityThread.main(ActivityThread.java:3835)
12-21 06:18:46.775: E/AndroidRuntime(7174):     at java.lang.reflect.Method.invokeNative(Native Method)
12-21 06:18:46.775: E/AndroidRuntime(7174):     at java.lang.reflect.Method.invoke(Method.java:507)
12-21 06:18:46.775: E/AndroidRuntime(7174):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:864)
12-21 06:18:46.775: E/AndroidRuntime(7174):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:622)
12-21 06:18:46.775: E/AndroidRuntime(7174):     at dalvik.system.NativeStart.main(Native Method)
12-21 06:18:46.775: E/AndroidRuntime(7174): Caused by: android.view.InflateException: Binary XML file line #2: Error inflating class fragment
12-21 06:18:46.775: E/AndroidRuntime(7174):     at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:587)
12-21 06:18:46.775: E/AndroidRuntime(7174):     at android.view.LayoutInflater.inflate(LayoutInflater.java:386)
12-21 06:18:46.775: E/AndroidRuntime(7174):     at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
12-21 06:18:46.775: E/AndroidRuntime(7174):     at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
12-21 06:18:46.775: E/AndroidRuntime(7174):     at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:213)
12-21 06:18:46.775: E/AndroidRuntime(7174):     at android.app.Activity.setContentView(Activity.java:1657)
12-21 06:18:46.775: E/AndroidRuntime(7174):     at com.luiz.googleMaps.MainActivity.onCreate(MainActivity.java:15)
12-21 06:18:46.775: E/AndroidRuntime(7174):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
12-21 06:18:46.775: E/AndroidRuntime(7174):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1722)
12-21 06:18:46.775: E/AndroidRuntime(7174):     ... 11 more
12-21 06:18:46.775: E/AndroidRuntime(7174): Caused by: android.support.v4.app.Fragment$InstantiationException: Unable to instantiate fragment com.google.android.gms.maps.SuppportMapFragment: make sure class name exists, is public, and has an empty constructor that is public
12-21 06:18:46.775: E/AndroidRuntime(7174):     at android.support.v4.app.Fragment.instantiate(Fragment.java:401)
12-21 06:18:46.775: E/AndroidRuntime(7174):     at android.support.v4.app.Fragment.instantiate(Fragment.java:369)
12-21 06:18:46.775: E/AndroidRuntime(7174):     at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:272)
12-21 06:18:46.775: E/AndroidRuntime(7174):     at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:563)
12-21 06:18:46.775: E/AndroidRuntime(7174):     ... 19 more
12-21 06:18:46.775: E/AndroidRuntime(7174): Caused by: java.lang.ClassNotFoundException: com.google.android.gms.maps.SuppportMapFragment in loader dalvik.system.PathClassLoader[/data/app/com.luiz.googleMaps-1.apk]
12-21 06:18:46.775: E/AndroidRuntime(7174):     at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:240)
12-21 06:18:46.775: E/AndroidRuntime(7174):     at java.lang.ClassLoader.loadClass(ClassLoader.java:551)
12-21 06:18:46.775: E/AndroidRuntime(7174):     at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
12-21 06:18:46.775: E/AndroidRuntime(7174):     at android.support.v4.app.Fragment.instantiate(Fragment.java:391)
12-21 06:18:46.775: E/AndroidRuntime(7174):     ... 22 more
12-21 06:23:46.827: I/Process(7174): Sending signal. PID: 7174 SIG: 9

【问题讨论】：

标签： android google-maps-api-2


【解决方案1】：

您是否尝试过使用 MapFragment 而不是 SupportMapFragment。

我的主要活动是这样的

public class MapActivity extends Activity {

private GoogleMap mMap;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.mapactivity);
    this.getActionBar().setTitle("Map");

    getActionBar().setDisplayHomeAsUpEnabled(true);

    mMap = ((MapFragment) getFragmentManager().findFragmentById(R.id.map)).getMap();


}

}

【讨论】：

  • 我确实尝试过使用 MapFragment，但“getFragmentManager”抛出此错误“方法 getFragmentManager() 未为 MainActivity 类型定义”。
  • 一定要导入：import com.google.android.gms.maps.MapFragment;
【解决方案2】：

您的申请中是否包含android-support-v4.jar 和google-play-services.jar？ 如果是，则只需删除活动标签的完全限定名称，如下所示：

`<activity
        android:name=".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>`

【讨论】：

  • 这不会修复它，因为当模拟器启动时将无法找到需要启动的 MAIN Activity。
【解决方案3】：

我认为你应该先检查一下 Google play 服务是否可用。

int status = GooglePlayServicesUtil.isGooglePlayServicesAvailable(getApplicationContext());
if(status == ConnectionResult.SUCCESS) {
            // what you want to do
}

【讨论】：

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