android - 膨胀不兼容 fragment 时出现 ClassNotFoundException

Question

由于在我看来是一个奇怪的错误，我的应用程序在启动时不断崩溃。我已经包含了下面的 logcat 以及相关的布局，但是正如您所看到的，有一个膨胀异常是由类 android.view.fragment 的类未找到异常引起的。我没有使用兼容性 fragment (应用程序不支持 pre-ICS)，所以一切都在期待 android.app.Fragment。我能找到的所有其他帖子都建议使用 FragmentActivity 但这不是这里的解决方案，因为我们不使用支持库。有没有人有任何见解？

布局文件:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:ads="http://schemas.android.com/apk/lib/com.google.ads"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/locations"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <!-- Some views here -->

    <!-- The line below is line 38 referenced in the LogCat -->
    <fragment
        android:id="@+id/ad_fragment"
        android:name="tenkiv.billing.AdFragment"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        tools:layout="@layout/ad_fragment_view" />

</RelativeLayout>

LogCat 输出:

FATAL EXCEPTION: main
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.tenkiv.environment.application/com.tenkiv.environment.application.EnvironmentMainActivity}: android.view.InflateException: Binary XML file line #38: Error inflating class fragment
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
    at android.app.ActivityThread.access$600(ActivityThread.java:141)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loop(Looper.java:137)
    at android.app.ActivityThread.main(ActivityThread.java:5041)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:511)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
    at dalvik.system.NativeStart.main(Native Method)
Caused by: android.view.InflateException: Binary XML file line #38: Error inflating class fragment
    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:698)
    at android.view.LayoutInflater.rInflate(LayoutInflater.java:746)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:352)
    at com.slidingmenu.lib.SlidingMenu.setMenu(SlidingMenu.java:384)
    at com.tenkiv.environment.application.EnvironmentMainActivity.onCreate(EnvironmentMainActivity.java:335)
    at android.app.Activity.performCreate(Activity.java:5104)
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144)
    ... 11 more
Caused by: java.lang.ClassNotFoundException: Didn't find class "android.view.fragment" on path: /data/app/com.tenkiv.environment.application-2.apk
    at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:65)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
    at android.view.LayoutInflater.createView(LayoutInflater.java:552)
    at android.view.LayoutInflater.onCreateView(LayoutInflater.java:643)
    at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:66)
    at android.view.LayoutInflater.onCreateView(LayoutInflater.java:660)
    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:685)
    ... 20 more

Answer 1

我不确定尝试给出这样的完全限定名称

 <fragment android:id="@+id/fragmentDetails" 
android:layout_height="fill_parent" 
android:layout_width="fill_parent" 
class="tenkiv.billing.AdFragment"/>