Android調試錯誤android.view.InflateException：二進制XML文件行＃9：錯誤擴展類片段

當我嘗試在手機上運行我的應用程序時：android.view.InflateException: Binary XML file line #9: Error inflating class fragment我不斷收到這個奇怪的錯誤，我不知道爲什麼。我想也許它與我打電話片段的方式有關？我alsready搜索堆棧溢出的答案，但所有這些似乎都與地圖Android調試錯誤android.view.InflateException：二進制XML文件行＃9：錯誤擴展類片段

XML1

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:id="@+id/container" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    tools:context="com.example.adrian.desktop.login" 
    tools:ignore="MergeRootFrame"> 

<fragment 
android:id="@+id/headlines_fragment" 
android:layout_width="fill_parent" 
android:layout_height="match_parent" 
tools:layout="@layout/fragment_login" /> 
</FrameLayout>

XML 2

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:paddingLeft="@dimen/activity_horizontal_margin" 
    android:paddingRight="@dimen/activity_horizontal_margin" 
    android:paddingTop="@dimen/activity_vertical_margin" 
    android:paddingBottom="@dimen/activity_vertical_margin" 
    tools:context="com.example.adrian.desktop.ViewProgress$PlaceholderFragment"> 


    <ScrollView 
     android:layout_width="fill_parent" 
     android:layout_height="fill_parent" 
     android:id="@+id/scrollView" 
     android:layout_alignParentTop="true" 
     android:layout_alignParentLeft="true" 
     android:layout_alignParentStart="true"> 
     <LinearLayout 
      android:id="@+id/Graph" 
      android:orientation="vertical" 
      android:fillViewport="true" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content"> 

      </LinearLayout> 
      </ScrollView> 
</RelativeLayout>

的Java 1

package com.example.adrian.desktop; 

import android.graphics.Typeface; 
import android.os.Bundle; 
import android.support.v4.app.Fragment; 
import android.support.v4.app.FragmentActivity; 
import android.view.LayoutInflater; 
import android.view.Menu; 
import android.view.MenuItem; 
import android.view.View; 
import android.view.ViewGroup; 
import android.widget.TextView; 

public class login extends FragmentActivity { 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_login); 
     if (savedInstanceState == null) { 
      getSupportFragmentManager().beginTransaction() 
        .add(R.id.container, new PlaceholderFragment()) 
        .commit(); 
     } 
     TextView loginTXT = (TextView) findViewById(R.id.logintxt); 
     Typeface robotoTHIN = Typeface.createFromAsset(getAssets(),"Fonts/Roboto-Thin.tff"); 
     loginTXT.setTypeface(robotoTHIN); 
    } 


    @Override 
    public boolean onCreateOptionsMenu(Menu menu) { 
     // Inflate the menu; this adds items to the action bar if it is present. 
     getMenuInflater().inflate(R.menu.login, menu); 
     return true; 
    } 

    @Override 
    public boolean onOptionsItemSelected(MenuItem item) { 
     // Handle action bar item clicks here. The action bar will 
     // automatically handle clicks on the Home/Up button, so long 
     // as you specify a parent activity in AndroidManifest.xml. 
     int id = item.getItemId(); 
     if (id == R.id.action_settings) { 
      return true; 
     } 
     return super.onOptionsItemSelected(item); 
    } 

    /** 
    * A placeholder fragment containing a simple view. 
    */ 
    public static class PlaceholderFragment extends Fragment { 

     public PlaceholderFragment() { 
     } 

     @Override 
     public View onCreateView(LayoutInflater inflater, ViewGroup container, 
       Bundle savedInstanceState) { 
      View rootView = inflater.inflate(R.layout.fragment_login, container, false); 
      return rootView; 
     } 
    } 
}

java 2

package com.example.adrian.desktop; 

import android.os.Bundle; 
import android.support.v4.app.Fragment; 
import android.support.v4.app.FragmentActivity; 
import android.view.LayoutInflater; 
import android.view.Menu; 
import android.view.MenuItem; 
import android.view.View; 
import android.view.ViewGroup; 
import android.widget.LinearLayout; 

import com.jjoe64.graphview.GraphView; 
import com.jjoe64.graphview.GraphView.GraphViewData; 
import com.jjoe64.graphview.GraphViewSeries; 
import com.jjoe64.graphview.LineGraphView; 

public class ViewProgress extends FragmentActivity { 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_view_progress); 
     if (savedInstanceState == null) { 
      getSupportFragmentManager().beginTransaction() 
        .add(R.id.container, new PlaceholderFragment()) 
        .commit(); 
     } 

     // init example series data 
     GraphViewSeries exampleSeries = new GraphViewSeries(new GraphViewData[] { 
       new GraphViewData(1, 2.0d) 
       , new GraphViewData(2, 1.5d) 
       , new GraphViewData(3, 2.5d) 
       , new GraphViewData(4, 1.0d) 
     }); 

     GraphView graphView = new LineGraphView(
       this // context 
       , "GraphViewDemo" // heading 
     ); 
     graphView.addSeries(exampleSeries); // data 

     LinearLayout layout = (LinearLayout) findViewById(R.id.Graph); 
     layout.addView(graphView); 
    } 


    @Override 
    public boolean onCreateOptionsMenu(Menu menu) { 
     // Inflate the menu; this adds items to the action bar if it is present. 
     getMenuInflater().inflate(R.menu.view_progress, menu); 
     return true; 
    } 

    @Override 
    public boolean onOptionsItemSelected(MenuItem item) { 
     // Handle action bar item clicks here. The action bar will 
     // automatically handle clicks on the Home/Up button, so long 
     // as you specify a parent activity in AndroidManifest.xml. 
     int id = item.getItemId(); 
     if (id == R.id.action_settings) { 
      return true; 
     } 
     return super.onOptionsItemSelected(item); 
    } 

    /** 
    * A placeholder fragment containing a simple view. 
    */ 
    public static class PlaceholderFragment extends Fragment { 

     public PlaceholderFragment() { 
     } 

     @Override 
     public View onCreateView(LayoutInflater inflater, ViewGroup container, 
       Bundle savedInstanceState) { 
      View rootView = inflater.inflate(R.layout.fragment_view_progress, container, false); 
      return rootView; 
     } 
    } 
}

堆棧跟蹤：

09-27 18:52:58.122 10725-10725/com.example.adrian.desktop E/AndroidRuntime﹕ FATAL EXCEPTION: main 
    Process: com.example.adrian.desktop, PID: 10725 
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.adrian.desktop/com.example.adrian.desktop.login}: android.view.InflateException: Binary XML file line #9: Error inflating class fragment 
      at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2585) 
      at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2641) 
      at android.app.ActivityThread.access$800(ActivityThread.java:156) 
      at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1355) 
      at android.os.Handler.dispatchMessage(Handler.java:102) 
      at android.os.Looper.loop(Looper.java:157) 
      at android.app.ActivityThread.main(ActivityThread.java:5867) 
      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:858) 
      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:674) 
      at dalvik.system.NativeStart.main(Native Method) 
    Caused by: android.view.InflateException: Binary XML file line #9: Error inflating class fragment 
      at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:713) 
      at android.view.LayoutInflater.rInflate(LayoutInflater.java:755) 
      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 com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:377) 
      at android.app.Activity.setContentView(Activity.java:1997) 
      at com.example.adrian.desktop.login.onCreate(login.java:19) 
      at android.app.Activity.performCreate(Activity.java:5312) 
      at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1111) 
      at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2541) 
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2641) 
            at android.app.ActivityThread.access$800(ActivityThread.java:156) 
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1355) 
            at android.os.Handler.dispatchMessage(Handler.java:102) 
            at android.os.Looper.loop(Looper.java:157) 
            at android.app.ActivityThread.main(ActivityThread.java:5867) 
            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:858) 
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:674) 
            at dalvik.system.NativeStart.main(Native Method) 
    Caused by: java.lang.NullPointerException: name == null 
      at java.lang.VMClassLoader.findLoadedClass(Native Method) 
      at java.lang.ClassLoader.findLoadedClass(ClassLoader.java:350) 
      at java.lang.ClassLoader.loadClass(ClassLoader.java:487) 
      at java.lang.ClassLoader.loadClass(ClassLoader.java:457) 
      at android.support.v4.app.Fragment.isSupportFragmentClass(Fragment.java:438) 
      at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:256) 
      at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:685) 
            at android.view.LayoutInflater.rInflate(LayoutInflater.java:755) 
            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 com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:377) 
            at android.app.Activity.setContentView(Activity.java:1997) 
            at com.example.adrian.desktop.login.onCreate(login.java:19) 
            at android.app.Activity.performCreate(Activity.java:5312) 
            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1111) 
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2541) 
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2641) 
            at android.app.ActivityThread.access$800(ActivityThread.java:156) 
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1355) 
            at android.os.Handler.dispatchMessage(Handler.java:102) 
            at android.os.Looper.loop(Looper.java:157) 
            at android.app.ActivityThread.main(ActivityThread.java:5867) 
            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:858) 
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:674) 
            at dalvik.system.NativeStart.main(Native Method)

來源

2014-09-28 Adam Praiswater

請發佈堆棧跟蹤。 – CommonsWare 2014-09-28 18:03:05

就像一個筆記，你應該重新命名你的類登錄，因爲所有的類應該以大寫開始每個約定。 – rekire 2014-09-28 18:11:34

你需要解決的片段本身（通過名稱attibute），你可以在例如從documentation看到：

<fragment android:name="com.example.android.fragments.HeadlinesFragment" 
      android:id="@+id/headlines_fragment" 
      android:layout_weight="1" 
      android:layout_width="0dp" 
      android:layout_height="match_parent" />

你soution應是這裏：

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:id="@+id/container" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    tools:context="com.example.adrian.desktop.login" 
    tools:ignore="MergeRootFrame"> 

    <fragment 
     android:name="com.example.adrian.desktop.login$PlaceholderFragment" 
     android:id="@+id/headlines_fragment" 
     android:layout_width="fill_parent" 
     android:layout_height="match_parent" 
     tools:layout="@layout/fragment_login" /> 

</FrameLayout>

來源

2014-09-28 18:05:41 rekire

堆棧跟蹤非常清楚地標識問題：

java.lang.NullPointerException: name == null

您沒有定義您想要虛浮的碎片。看例子here，片段需要一個名字。例如

android:name="com.example.news.ArticleListFragment"

如果您沒有提供名稱，系統無法確定膨脹的內容。

來源

2014-09-28 18:06:45 gruszczy

Android調試錯誤android.view.InflateException：二進制XML文件行＃9：錯誤擴展類片段

回答

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