找不到SupportMapFragment(SupportMapFragment not found)

我想在HTC Desire上使用Android 2.2上的Google Maps Android API v2。

我的main.xml包含以下内容：

<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="dk.sw510e13.user" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="16" /> <application android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name" > <activity android:name="dk.sw510e13.user.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>

这是我的活动。

package dk.sw510e13.user; import android.os.Bundle; import android.support.v4.app.FragmentActivity; import android.view.Menu; public class MainActivity extends FragmentActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } }

当我运行应用程序时，我将得到以下异常。它似乎无法找到SupportMapFragment，但是，我相信我有支持库和Google Play服务作为依赖项。在Android Studio中创建项目时，我选择添加对片段的支持。

01-17 23:52:55.237 2557-2557/dk.sw510e13.user E/AndroidRuntime﹕ FATAL EXCEPTION: main java.lang.RuntimeException: Unable to start activity ComponentInfo{dk.sw510e13.user/dk.sw510e13.user.MainActivity}: android.view.InflateException: Binary XML file line #11: Error inflating class fragment at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2787) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2803) at android.app.ActivityThread.access$2300(ActivityThread.java:135) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2136) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:144) at android.app.ActivityThread.main(ActivityThread.java:4937) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:521) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:858) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) at dalvik.system.NativeStart.main(Native Method) Caused by: android.view.InflateException: Binary XML file line #11: Error inflating class fragment at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:582) at android.view.LayoutInflater.rInflate(LayoutInflater.java:618) at android.view.LayoutInflater.inflate(LayoutInflater.java:407) at android.view.LayoutInflater.inflate(LayoutInflater.java:320) at android.view.LayoutInflater.inflate(LayoutInflater.java:276) at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:207) at android.app.Activity.setContentView(Activity.java:1654) at dk.sw510e13.user.MainActivity.onCreate(MainActivity.java:13) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1069) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2751) ... 11 more Caused by: android.support.v4.app.Fragment$InstantiationException: Unable to instantiate fragment com.google.android.gms.maps.SupportMapFragment: make sure class name exists, is public, and has an empty constructor that is public at android.support.v4.app.Fragment.instantiate(Fragment.java:409) at android.support.v4.app.Fragment.instantiate(Fragment.java:377) at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:277) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:558) ... 20 more Caused by: java.lang.ClassNotFoundException: com.google.android.gms.maps.SupportMapFragment in loader dalvik.system.PathClassLoader[/data/app/dk.sw510e13.user-2.apk] at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:243) at java.lang.ClassLoader.loadClass(ClassLoader.java:573) at java.lang.ClassLoader.loadClass(ClassLoader.java:532) at android.support.v4.app.Fragment.instantiate(Fragment.java:399) ... 23 more

这就是我在依赖项中所拥有的。

谁能告诉我我做错了什么？

UPDATE

这是我的表现。

<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="dk.sw510e13.user" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="16" /> <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" > <activity android:name="dk.sw510e13.user.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> <meta-data android:name="com.google.android.maps.v2.API_KEY" android:value="XXXXXX"/> </application> </manifest>

I am trying to get Google Maps Android API v2 working on Android 2.2 on a HTC Desire.

My main.xml contains the following:

<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="dk.sw510e13.user" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="16" /> <application android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name" > <activity android:name="dk.sw510e13.user.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>

This is my activity.

package dk.sw510e13.user; import android.os.Bundle; import android.support.v4.app.FragmentActivity; import android.view.Menu; public class MainActivity extends FragmentActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } }

When I run the application, I will get the following exception. It seems that it cannot find SupportMapFragment, however, I believe that I have both the support library and Google Play Services as dependencies. When creating the project in Android Studio I chose to add support for fragments.

01-17 23:52:55.237 2557-2557/dk.sw510e13.user E/AndroidRuntime﹕ FATAL EXCEPTION: main java.lang.RuntimeException: Unable to start activity ComponentInfo{dk.sw510e13.user/dk.sw510e13.user.MainActivity}: android.view.InflateException: Binary XML file line #11: Error inflating class fragment at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2787) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2803) at android.app.ActivityThread.access$2300(ActivityThread.java:135) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2136) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:144) at android.app.ActivityThread.main(ActivityThread.java:4937) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:521) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:858) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) at dalvik.system.NativeStart.main(Native Method) Caused by: android.view.InflateException: Binary XML file line #11: Error inflating class fragment at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:582) at android.view.LayoutInflater.rInflate(LayoutInflater.java:618) at android.view.LayoutInflater.inflate(LayoutInflater.java:407) at android.view.LayoutInflater.inflate(LayoutInflater.java:320) at android.view.LayoutInflater.inflate(LayoutInflater.java:276) at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:207) at android.app.Activity.setContentView(Activity.java:1654) at dk.sw510e13.user.MainActivity.onCreate(MainActivity.java:13) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1069) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2751) ... 11 more Caused by: android.support.v4.app.Fragment$InstantiationException: Unable to instantiate fragment com.google.android.gms.maps.SupportMapFragment: make sure class name exists, is public, and has an empty constructor that is public at android.support.v4.app.Fragment.instantiate(Fragment.java:409) at android.support.v4.app.Fragment.instantiate(Fragment.java:377) at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:277) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:558) ... 20 more Caused by: java.lang.ClassNotFoundException: com.google.android.gms.maps.SupportMapFragment in loader dalvik.system.PathClassLoader[/data/app/dk.sw510e13.user-2.apk] at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:243) at java.lang.ClassLoader.loadClass(ClassLoader.java:573) at java.lang.ClassLoader.loadClass(ClassLoader.java:532) at android.support.v4.app.Fragment.instantiate(Fragment.java:399) ... 23 more

This is what I have in my dependencies.

Can anyone tell me what I am doing wrong?

UPDATE

This is my manifest.

<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="dk.sw510e13.user" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="16" /> <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" > <activity android:name="dk.sw510e13.user.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> <meta-data android:name="com.google.android.maps.v2.API_KEY" android:value="XXXXXX"/> </application> </manifest>

最满意答案

这是在丢失Google Play服务时似乎发生的问题。

我请求您按照下面提到的步骤将Google Play服务包含在您的应用程序中。

在libs文件夹中复制google-play-services.jar并在eclipse的构建路径中设置是一种错误的方法。

在项目中导入Google Play服务并将其添加到工作区中。从SDK文件夹的位置。

\演员\谷歌\ google_play_services \ libproject \的Google Play-services_lib

2！现在您已将Google Play服务添加到您的工作区，我们必须创建从项目到此库的引用。右键单击项目并选择“属性”转到Android部分，在下半部分按“添加...”按钮并添加对该库的引用。您的结果应如下面的屏幕截图所示：

添加Google Play服务库

在此处输入图像描述

请加

在你的清单中

This is the problem that seems to be occurred when missing Google Play services.

I request you to please follow the steps mentioned below to get the Google Play services to be included in your application.

copying the google-play-services.jar in libs folder and set in the build path of eclipse is a wrong method.

import Google Play services in your project and add it in workspace. from location of your SDK folder.

\extras\google\google_play_services\libproject\google-play-services_lib

2! Now you added Google Play Services to your work space, we have to create a reference from our project to this library. Right-Click your project and choose “Properties” go to the Android section, in the lower part press the “Add…” button and add a reference to that library. Your result should be as in the screen shot bellow:

adding Google Play services library

enter image description here

Please Add

in your manifest

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