Android.view.InflateException：二进制XML文件行＃1：错误膨胀类菜单

时间：2016-05-25 01:47:22

标签： xml android-studio inflate-exception

我一直在关注Udacity＆＃34;开发Android应用程序＆＃34;当然，我偶然发现了一个问题。在教程中，我被要求创建一个名为My Notification Client的XML文件，如下所示：

forecastfragment.xml

我被告知要把它膨胀成一个名为<menu xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" tools:context="com.example.android.sunshine.app.MainActivity" android:layout_width="match_parent" android:layout_height="match_parent"> <item android:id="@+id/action_refresh" android:title="@string/action_refresh" app:showAsAction="never" /> </menu> 的类的片段，这个过程就发生在这一行：

ForecastFragment.java

我的问题是，当我尝试运行该应用时，我收到此错误：

View rootView = inflater.inflate(R.layout.forecastfragment, container, false);

从行：

05-24 21:40:02.848 11882-11882/com.example.android.sunshine.app E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.android.sunshine.app, PID: 11882 java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.android.sunshine.app/com.example.android.sunshine.app.MainActivity}: android.view.InflateException: Binary XML file line #1: Error inflating class menu at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2379) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2431) at android.app.ActivityThread.access$800(ActivityThread.java:151) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1342) at android.os.Handler.dispatchMessage(Handler.java:110) at android.os.Looper.loop(Looper.java:193) at android.app.ActivityThread.main(ActivityThread.java:5335) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:515) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:828) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:644) at dalvik.system.NativeStart.main(Native Method) Caused by: android.view.InflateException: Binary XML file line #1: Error inflating class menu at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:707) at android.view.LayoutInflater.inflate(LayoutInflater.java:469) at android.view.LayoutInflater.inflate(LayoutInflater.java:397) at com.example.android.sunshine.app.ForecastFragment.onCreateView(ForecastFragment.java:34) at android.support.v4.app.Fragment.performCreateView(Fragment.java:1974) at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1036) at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1230) at android.support.v4.app.FragmentManagerImpl.addFragment(FragmentManager.java:1332) at android.support.v4.app.FragmentManagerImpl.onCreateView(FragmentManager.java:2288) at android.support.v4.app.FragmentController.onCreateView(FragmentController.java:120) at android.support.v4.app.FragmentActivity.dispatchFragmentsOnCreateView(FragmentActivity.java:356) at android.support.v4.app.BaseFragmentActivityHoneycomb.onCreateView(BaseFragmentActivityHoneycomb.java:31) at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:79) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:689) at android.view.LayoutInflater.parseInclude(LayoutInflater.java:816) at android.view.LayoutInflater.rInflate(LayoutInflater.java:745) at android.view.LayoutInflater.inflate(LayoutInflater.java:492) at android.view.LayoutInflater.inflate(LayoutInflater.java:397) at android.view.LayoutInflater.inflate(LayoutInflater.java:353) at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:280) at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140) at com.example.android.sunshine.app.MainActivity.onCreate(MainActivity.java:17) at android.app.Activity.performCreate(Activity.java:5343) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1088) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2331) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2431)  at android.app.ActivityThread.access$800(ActivityThread.java:151)  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1342)  at android.os.Handler.dispatchMessage(Handler.java:110)  at android.os.Looper.loop(Looper.java:193)  at android.app.ActivityThread.main(ActivityThread.java:5335)  at java.lang.reflect.Method.invokeNative(Native Method)  at java.lang.reflect.Method.invoke(Method.java:515)  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:828)  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:644)  at dalvik.system.NativeStart.main(Native Method)  Caused by: java.lang.ClassNotFoundException: Didn't find class "android.view.menu" on path: DexPathList[[zip file "/data/app/com.example.android.sunshine.app-2.apk"],nativeLibraryDirectories=[/data/app-lib/com.example.android.sunshine.app-2, /vendor/lib, /system/lib]] at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56) at java.lang.ClassLoader.loadClass(ClassLoader.java:497) at java.lang.ClassLoader.loadClass(ClassLoader.java:457) at android.view.LayoutInflater.createView(LayoutInflater.java:559) at android.view.LayoutInflater.onCreateView(LayoutInflater.java:652) at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:66) at android.view.LayoutInflater.onCreateView(LayoutInflater.java:669) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:694) at android.view.LayoutInflater.inflate(LayoutInflater.java:469)  at android.view.LayoutInflater.inflate(LayoutInflater.java:397)  at com.example.android.sunshine.app.ForecastFragment.onCreateView(ForecastFragment.java:34)  at android.support.v4.app.Fragment.performCreateView(Fragment.java:1974)  at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1036)  at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1230)  at android.support.v4.app.FragmentManagerImpl.addFragment(FragmentManager.java:1332)  at android.support.v4.app.FragmentManagerImpl.onCreateView(FragmentManager.java:2288)  at android.support.v4.app.FragmentController.onCreateView(FragmentController.java:120)  at android.support.v4.app.FragmentActivity.dispatchFragmentsOnCreateView(FragmentActivity.java:356)  at android.support.v4.app.BaseFragmentActivityHoneycomb.onCreateView(BaseFragmentActivityHoneycomb.java:31)  at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:79)  at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:689)  at android.view.LayoutInflater.parseInclude(LayoutInflater.java:816)  at android.view.LayoutInflater.rInflate(LayoutInflater.java:745)  at android.view.LayoutInflater.inflate(LayoutInflater.java:492)  at android.view.LayoutInflater.inflate(LayoutInflater.java:397)  at android.view.LayoutInflater.inflate(LayoutInflater.java:353)  at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:280)  at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140)  at com.example.android.sunshine.app.MainActivity.onCreate(MainActivity.java:17)  at android.app.Activity.performCreate(Activity.java:5343)  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1088)  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2331)  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2431)  at android.app.ActivityThread.access$800(ActivityThread.java:151)  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1342)  at android.os.Handler.dispatchMessage(Handler.java:110)  at android.os.Looper.loop(Looper.java:193)  at android.app.ActivityThread.main(ActivityThread.java:5335)  at java.lang.reflect.Method.invokeNative(Native Method)  at java.lang.reflect.Method.invoke(Method.java:515) 

我猜这个问题在XML文件中，但我不明白可能出错的原因，因为没有错误被抛出。我认为，因为我是新手，所以这可能是一个简单的错误。有谁知道为什么？非常感谢你提前

1 个答案:

答案 0 :(得分：1)

上面提到的xml文件是一个菜单文件。它用于向您添加菜单项操作栏。

所以它不能作为你的片段布局文件膨胀。首先，您需要为片段创建布局文件。

然后，您需要将 forecastfragment.xml 充气为操作栏的菜单。

按照以下步骤操作：

1.创建一个正常的布局xml文件，在/ res / layout /中输入 sample.xml ，并通过在 onCreateView 中编写以下代码行来为您的片段充气： 

    View rootView = inflater.inflate(R.layout.sample, container, false);

2。然后覆盖该功能： onCreateOptionsMenu（菜单菜单） 你会像这样膨胀 forecastfragment.xml ：

    getMenuInflater().inflate(R.menu.forecastfragment, menu);
    return true;

还在片段的 onCreate 方法中添加以下代码行：

setHasOptionsMenu(true);

还有一件事：将forecastfragment.xml放在/ res / menu文件夹中。

相关问题
最新问题