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原因：android.support.v4.app.Fragment $ InstantiationException：无法实例化片段

[英]Caused by: android.support.v4.app.Fragment$InstantiationException: Unable to instantiate fragment

 原文  2014-04-10 17:35:00  9   1    java/ android

问题描述

I have issues trying to implement Google Maps to my app, please see details below, help would be appreciated. 我在尝试将Google Maps实施到我的应用时遇到问题，请在下面查看详细信息，我们将不胜感激。

Activity.xml (activity_locate_store): Activity.xml（activity_locate_store）： 

<fragment xmlns:android="http://schemas.android.com/apk/res/android"
      android:id="@+id/map"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:name="com.google.android.gms.maps.SupportMapFragment"/>

Activity.java (LocateStore): Activity.java（LocateStore）： 

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

public class LocateStore extends FragmentActivity  {
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_locate_store);
}

Mainfest.xml Mainfest.xml 

    <application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/MyTheme" >

    <meta-data
        android:name="com.google.android.maps.v2.API_KEY"
        android:value="my_key_goes_here" />

    <meta-data
        android:name="com.google.android.gms.v2"
        android:value="4242000" />

Android Value from Google Lib (Google Play Services - res/value): Google Lib提供的Android价值（Google Play服务-资源/价值）： 

<resources>
<integer name="google_play_services_version">4242000</integer>

Logcat: logcat的： 

Caused by: android.view.InflateException: Binary XML file line #2: Error inflating    class fragment 04-10 17:23:41.787: E/AndroidRuntime(794): 

 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

Logcat Update: Logcat更新： 

04-10 17:41:47.130: E/ActivityThread(625): Service com.android.exchange.ExchangeService has leaked ServiceConnection com.android.emailcommon.service.ServiceProxy$ProxyConnection@40d16440 that was originally bound here
04-10 17:41:47.130: E/ActivityThread(625): android.app.ServiceConnectionLeaked: Service com.android.exchange.ExchangeService has leaked ServiceConnection com.android.emailcommon.service.ServiceProxy$ProxyConnection@40d16440 that was originally bound here
04-10 17:41:47.130: E/ActivityThread(625):  at android.app.LoadedApk$ServiceDispatcher.<init>(LoadedApk.java:969)
04-10 17:41:47.130: E/ActivityThread(625):  at android.app.LoadedApk.getServiceDispatcher(LoadedApk.java:863)
04-10 17:41:47.130: E/ActivityThread(625):  at android.app.ContextImpl.bindService(ContextImpl.java:1418)
04-10 17:41:47.130: E/ActivityThread(625):  at android.app.ContextImpl.bindService(ContextImpl.java:1407)
04-10 17:41:47.130: E/ActivityThread(625):  at android.content.ContextWrapper.bindService(ContextWrapper.java:473)
04-10 17:41:47.130: E/ActivityThread(625):  at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:157)
04-10 17:41:47.130: E/ActivityThread(625):  at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:145)
04-10 17:41:47.130: E/ActivityThread(625):  at com.android.emailcommon.service.AccountServiceProxy.getDeviceId(AccountServiceProxy.java:116)
04-10 17:41:47.130: E/ActivityThread(625):  at com.android.exchange.ExchangeService.getDeviceId(ExchangeService.java:1249)
04-10 17:41:47.130: E/ActivityThread(625):  at com.android.exchange.ExchangeService$7.run(ExchangeService.java:1856)
04-10 17:41:47.130: E/ActivityThread(625):  at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:551)
04-10 17:41:47.130: E/ActivityThread(625):  at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:549)
04-10 17:41:47.130: E/ActivityThread(625):  at android.os.AsyncTask$2.call(AsyncTask.java:287)
04-10 17:41:47.130: E/ActivityThread(625):  at java.util.concurrent.FutureTask.run(FutureTask.java:234)
04-10 17:41:47.130: E/ActivityThread(625):  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
04-10 17:41:47.130: E/ActivityThread(625):  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
04-10 17:41:47.130: E/ActivityThread(625):  at java.lang.Thread.run(Thread.java:856)
04-10 17:41:47.160: E/StrictMode(625): null
04-10 17:41:47.160: E/StrictMode(625): android.app.ServiceConnectionLeaked: Service com.android.exchange.ExchangeService has leaked ServiceConnection com.android.emailcommon.service.ServiceProxy$ProxyConnection@40d16440 that was originally bound here
04-10 17:41:47.160: E/StrictMode(625):  at android.app.LoadedApk$ServiceDispatcher.<init>(LoadedApk.java:969)
04-10 17:41:47.160: E/StrictMode(625):  at android.app.LoadedApk.getServiceDispatcher(LoadedApk.java:863)
04-10 17:41:47.160: E/StrictMode(625):  at android.app.ContextImpl.bindService(ContextImpl.java:1418)
04-10 17:41:47.160: E/StrictMode(625):  at android.app.ContextImpl.bindService(ContextImpl.java:1407)
04-10 17:41:47.160: E/StrictMode(625):  at android.content.ContextWrapper.bindService(ContextWrapper.java:473)
04-10 17:41:47.160: E/StrictMode(625):  at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:157)
04-10 17:41:47.160: E/StrictMode(625):  at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:145)
04-10 17:41:47.160: E/StrictMode(625):  at com.android.emailcommon.service.AccountServiceProxy.getDeviceId(AccountServiceProxy.java:116)
04-10 17:41:47.160: E/StrictMode(625):  at com.android.exchange.ExchangeService.getDeviceId(ExchangeService.java:1249)
04-10 17:41:47.160: E/StrictMode(625):  at com.android.exchange.ExchangeService$7.run(ExchangeService.java:1856)
04-10 17:41:47.160: E/StrictMode(625):  at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:551)
04-10 17:41:47.160: E/StrictMode(625):  at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:549)
04-10 17:41:47.160: E/StrictMode(625):  at android.os.AsyncTask$2.call(AsyncTask.java:287)
04-10 17:41:47.160: E/StrictMode(625):  at java.util.concurrent.FutureTask.run(FutureTask.java:234)
04-10 17:41:47.160: E/StrictMode(625):  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
04-10 17:41:47.160: E/StrictMode(625):  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
04-10 17:41:47.160: E/StrictMode(625):  at java.lang.Thread.run(Thread.java:856)
04-10 17:41:47.160: W/ActivityManager(290): Unbind failed: could not find connection for android.os.BinderProxy@40ebb860
04-10 17:41:47.180: E/ActivityThread(625): Service com.android.exchange.ExchangeService has leaked ServiceConnection com.android.emailcommon.service.ServiceProxy$ProxyConnection@40d16098 that was originally bound here
04-10 17:41:47.180: E/ActivityThread(625): android.app.ServiceConnectionLeaked: Service com.android.exchange.ExchangeService has leaked ServiceConnection com.android.emailcommon.service.ServiceProxy$ProxyConnection@40d16098 that was originally bound here
04-10 17:41:47.180: E/ActivityThread(625):  at android.app.LoadedApk$ServiceDispatcher.<init>(LoadedApk.java:969)
04-10 17:41:47.180: E/ActivityThread(625):  at android.app.LoadedApk.getServiceDispatcher(LoadedApk.java:863)
04-10 17:41:47.180: E/ActivityThread(625):  at android.app.ContextImpl.bindService(ContextImpl.java:1418)
04-10 17:41:47.180: E/ActivityThread(625):  at android.app.ContextImpl.bindService(ContextImpl.java:1407)
04-10 17:41:47.180: E/ActivityThread(625):  at android.content.ContextWrapper.bindService(ContextWrapper.java:473)
04-10 17:41:47.180: E/ActivityThread(625):  at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:157)
04-10 17:41:47.180: E/ActivityThread(625):  at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:145)
04-10 17:41:47.180: E/ActivityThread(625):  at com.android.emailcommon.service.ServiceProxy.test(ServiceProxy.java:191)
04-10 17:41:47.180: E/ActivityThread(625):  at com.android.exchange.ExchangeService$7.run(ExchangeService.java:1850)
04-10 17:41:47.180: E/ActivityThread(625):  at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:551)
04-10 17:41:47.180: E/ActivityThread(625):  at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:549)
04-10 17:41:47.180: E/ActivityThread(625):  at android.os.AsyncTask$2.call(AsyncTask.java:287)
04-10 17:41:47.180: E/ActivityThread(625):  at java.util.concurrent.FutureTask.run(FutureTask.java:234)
04-10 17:41:47.180: E/ActivityThread(625):  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
04-10 17:41:47.180: E/ActivityThread(625):  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
04-10 17:41:47.180: E/ActivityThread(625):  at java.lang.Thread.run(Thread.java:856)
: E/(): Device disconnected

Logcat Update2: Logcat Update2：

04-10 18:10:30.357: E/AndroidRuntime(794): Caused by: android.view.InflateException: Binary XML file line #2: Error inflating class fragment 04-10 18:10:30.357: E/AndroidRuntime(794): Caused by: java.lang.IllegalStateException: The meta-data tag in your app's AndroidManifest.xml does not have the right value. 04-10 18：10：3​​0.357：E / AndroidRuntime（794）：原因：android.view.InflateException：二进制XML文件第2行：错误放大类片段04-10 18：10：3​​0.357：E / AndroidRuntime（794 ）：由以下原因引起：java.lang.IllegalStateException：应用的AndroidManifest.xml中的元数据标记的值不正确。 Expected 4242000 but found 0. You must have the following declaration within the element: 预期为4242000，但发现为0。元素中必须具有以下声明：

1 个解决方案

解决方案1
 1 已采纳  2014-04-10 23:46:38

Google's docs may be out of date, but developers.google.com/maps/documentation/android/… says that the name for the metadata item should be: "com.google.android.gms.version". Google的文档可能已过时，但是developers.google.com/maps/documentation/android/…表示元数据项的名称应为：“ com.google.android.gms.version”。 Have you tried changing your meta-data name to that? 您是否尝试过将元数据名称更改为该名称？

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