Android中的片段错误：二进制XML文件膨胀异常

Question

我只是想使用简单的片段，但它显示了一个我无法弄清楚的问题。

我已经尝试了很长时间了。请帮我。它给出了以下错误：

  

android.view.inflateException：二进制xml文件行＃11错误

这是我的代码：

package com.example.myfragmentqadvance;

import android.app.Activity;
import android.app.FragmentManager;
import android.content.Intent;
import android.os.Bundle;

public class MainActivity extends Activity implements Fragment1.Communicator {
    Fragment1 f1;
    Fragment2 f2;
    FragmentManager manager;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        manager= getFragmentManager();
        f1=(Fragment1) manager.findFragmentById(R.id.fragment1);
        f1.setCommunicator(this);
    }

    @Override
    public void respond(int index) {
        f2=(Fragment2) manager.findFragmentById(R.id.fragment2);
        if(f2!=null & f2.isVisible()){
            f2.changedData(index);
        }else {
            Intent intent = new Intent(this,AnotherAcitivity.class);
            intent.putExtra("index", index);
            startActivity(intent);
        }
    }
}

activity.main.xml

<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:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >

<fragment
    android:id="@+id/fragment1"
    android:name="com.example.myfragmentqadvance.Fragment1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentTop="true"
    android:layout_centerHorizontal="true"
    android:layout_marginTop="24dp" />

</RelativeLayout>

Fragment1.java

package com.example.myfragmentqadvance;

import android.os.Bundle;
import android.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;

public class Fragment1 extends Fragment implements OnItemClickListener {
    ListView list;
    Communicator communicator;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        View view= inflater.inflate(R.layout.activity_fragment1, container, false);
        list=(ListView)getActivity().findViewById(R.id.listView1);
        ArrayAdapter adapter = ArrayAdapter.createFromResource(getActivity(),     R.array.chapter, android.R.layout.simple_list_item_1);
        list.setAdapter(adapter);
        list.setOnItemClickListener(this);
        return view;
    }



    public void setCommunicator(Communicator communicator) {
        this.communicator = communicator;
    }

    public interface Communicator{
        public void respond(int index);
    }

    @Override
    public void onItemClick(AdapterView<?> arg0, View arg1, int i, long arg3) {
        communicator.respond(i);
    }
}

的AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.myfragmentqadvance"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk
    android:minSdkVersion="11"
    android:targetSdkVersion="17" />

<application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
    <activity
        android:name="com.example.myfragmentqadvance.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>
    <activity
        android:name="com.example.myfragmentqadvance.Fragment1"
        android:label="@string/title_activity_fragment1" >
    </activity>
    <activity
        android:name="com.example.myfragmentqadvance.Fragment2"
        android:label="@string/title_activity_fragment2" >
    </activity>
    <activity
        android:name="com.example.myfragmentqadvance.AnotherAcitivity"
        android:label="@string/title_activity_another_acitivity" >
    </activity>
</application>

</manifest>

Logcat 如果有帮助

05-27 06:56:51.768: D/dalvikvm(857): GC_FOR_ALLOC freed 39K, 6% free 2558K/2720K, paused 35ms, total 38ms

05-27 06:56:51.778: I/dalvikvm-heap(857): Grow heap (frag case) to 3.220MB for 635812-byte allocation

05-27 06:56:51.828: D/dalvikvm(857): GC_FOR_ALLOC freed 2K, 5% free 3177K/3344K, paused 47ms, total 47ms

05-27 06:56:51.879: D/dalvikvm(857): GC_CONCURRENT freed <1K, 5% free 3179K/3344K, paused 4ms+4ms, total 57ms

05-27 06:56:51.918: D/AndroidRuntime(857): Shutting down VM

05-27 06:56:51.918: W/dalvikvm(857): threadid=1: thread exiting with uncaught exception (group=0x40a71930)

05-27 06:56:51.938: E/AndroidRuntime(857): FATAL EXCEPTION: main

05-27 06:56:51.938: E/AndroidRuntime(857): java.lang.RuntimeException:     Unable to start activity    ComponentInfo{com.example.myfragmentqadvance/com.example.
                   myfragmentqadvance.MainActivity}:     android.view.InflateException: Binary XML file line #11: Error inflating class fragment
05-27 06:56:51.938: E/AndroidRuntime(857):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180)

05-27 06:56:51.938: E/AndroidRuntime(857):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)

05-27 06:56:51.938: E/AndroidRuntime(857):  at android.app.ActivityThread.access$600(ActivityThread.java:141)

05-27 06:56:51.938: E/AndroidRuntime(857):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)

05-27 06:56:51.938: E/AndroidRuntime(857):  at android.os.Handler.dispatchMessage(Handler.java:99)

05-27 06:56:51.938: E/AndroidRuntime(857):  at android.os.Looper.loop(Looper.java:137)

05-27 06:56:51.938: E/AndroidRuntime(857):  at android.app.ActivityThread.main(ActivityThread.java:5041)

05-27 06:56:51.938: E/AndroidRuntime(857):  at java.lang.reflect.Method.invokeNative(Native Method)

05-27 06:56:51.938: E/AndroidRuntime(857):  at java.lang.reflect.Method.invoke(Method.java:511)

05-27 06:56:51.938: E/AndroidRuntime(857):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)

05-27 06:56:51.938: E/AndroidRuntime(857):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)

05-27 06:56:51.938: E/AndroidRuntime(857):  at dalvik.system.NativeStart.main(Native Method)

05-27 06:56:51.938: E/AndroidRuntime(857): Caused by: android.view.InflateException: Binary XML file line #11: Error inflating class fragment

05-27 06:56:51.938: E/AndroidRuntime(857):  at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704)

05-27 06:56:51.938: E/AndroidRuntime(857):  at android.view.LayoutInflater.rInflate(LayoutInflater.java:746)

Answer 1

您可能在.xml文件中有一些小错误。请检查一下这些文件。

解决方案：

您可以将片段添加到相对布局中，但为了正确地执行此操作，您需要为其分配适当的布局参数，以便可以放置它。在包含其内容的相对布局中创建一个FrameLayout会更容易，然后在那里添加片段。

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
   android:layout_width="fill_parent"
   android:layout_height="fill_parent">

   <FrameLayout
      android:id="@+id/FragmentContainer"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_below="@id/B1"/>

</RelativeLayout>

然后

fragmentTransaction.add(R.id.FragmentContainer, fragment);

无需在Manifest文件中将fragments声明为活动

<activity
    android:name="com.example.myfragmentqadvance.Fragment1"
    android:label="@string/title_activity_fragment1" >
</activity>
<activity
    android:name="com.example.myfragmentqadvance.Fragment2"
    android:label="@string/title_activity_fragment2" >
</activity>

删除这部分代码。不需要。

Answer 2

您的activity_main.xml中的

片段无效，您似乎也想拥有Fragment1。将片段更改为com.example.myfragmentqadvance.Fragment1

Answer 3

我得到了解决方案。当我使用onActivityCreated它工作...

public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
    View view= inflater.inflate(R.layout.activity_fragment1, container, false); 
    return view;
}

@Override
public void onActivityCreated(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onActivityCreated(savedInstanceState);
    list=(ListView)getActivity().findViewById(R.id.listView1);
    ArrayAdapter adapter = ArrayAdapter.createFromResource(getActivity(),     R.array.chapter, android.R.layout.simple_list_item_1);
    list.setAdapter(adapter);
    list.setOnItemClickListener(this);
}

它工作正常，但提供空指针执行