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android.view.InflateException:二进制XML文件行#8:错误膨胀类片段

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我试图将布局膨胀成片段,我有#8:错误膨胀类片段我的视图甚至没有创建它落在膨胀如何正确膨胀布局?

我的XML大:

<?xml version="1.0" encoding="utf-8"?>
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:baselineAligned="false">

        <fragment 
                  android:id="@+id/first_page"
                  android:layout_weight="1"
                  android:layout_width="0dp"
                  android:layout_height="match_parent"
                  class = "com.project.places.First_Page"   
                    />

        <fragment 
                  android:id="@+id/map"
                  android:layout_weight="2"
                  android:layout_width="0dp"
                  android:layout_height="match_parent"
                  android:name="com.project.places.Map_fragment"
                   />


    </LinearLayout>

我的容器:

</FrameLayout>

我的片段布局:

android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:padding="10sp" >

<ScrollView
    android:id="@+id/scrollView1"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" >

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical" >



        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical"
            android:padding="10dp" >

            <ImageButton
                android:id="@+id/search_By_Location"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center_horizontal"
                android:src="@drawable/location" />

            <TextView
                android:id="@+id/search_By_Location_TextView"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center_horizontal"
                android:text="Search By Your Current Location"
                android:textAppearance="?android:attr/textAppearanceLarge" />
        </LinearLayout>

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical"
            android:padding="10dp" >

            <ImageButton
                android:id="@+id/search_By_City"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center_horizontal"
                android:src="@drawable/city_icon" />

            <TextView
                android:id="@+id/search_By_City_TextView"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center_horizontal"
                android:text="Search By City"
                android:textAppearance="?android:attr/textAppearanceLarge" />
        </LinearLayout><LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical" android:padding="10dp">

            <ImageButton 
                android:id="@+id/favorits" 
                android:layout_width="wrap_content"
                android:layout_height="wrap_content" 
                android:layout_gravity="center_horizontal" 
                android:src="@drawable/location_star"
                 />

            <TextView android:id="@+id/favorits_TextView"
                  android:layout_width="wrap_content"
                  android:layout_height="wrap_content"
                  android:layout_gravity="center_horizontal"
                  android:text="Browser Favorites"
                  android:textAppearance="?android:attr/textAppearanceLarge" />
        </LinearLayout>

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical"
            android:padding="10dp" >

            <ImageButton
                android:id="@+id/history"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center_horizontal"
                android:src="@drawable/location_clock" />

            <TextView
                android:id="@+id/history_TextView"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center_horizontal"
                android:text="Browser History"
                android:textAppearance="?android:attr/textAppearanceLarge" />
          </LinearLayout>

       </LinearLayout>
   </ScrollView>

</LinearLayout>

java主要:

my class java first :


    package com.project.places;

    import android.app.Activity;
    import android.os.Bundle;
    import android.support.v4.app.Fragment;
    import android.view.LayoutInflater;
    import android.view.View;
    import android.view.ViewGroup;
    import android.widget.ImageButton;
    import android.widget.Toast;

    public class First_Page extends Fragment{


        onSearchTypeListener searchType_Callback;

        public interface onSearchTypeListener{
            public void searchTypeSelected(String type);
        }


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

        @Override
        public void onViewCreated(View view, Bundle savedInstanceState) {


            ImageButton by_city =(ImageButton)getActivity().findViewById(R.id.search_By_City);
            by_city.setOnClickListener(new View.OnClickListener() {

                @Override
                public void onClick(View v) {
                    //Toast.makeText(getActivity(), "by_city", Toast.LENGTH_SHORT).show();
                    searchType_Callback.searchTypeSelected("city");
                }
            });

            ImageButton by_location =(ImageButton)getActivity().findViewById(R.id.search_By_Location);
            by_location.setOnClickListener(new View.OnClickListener() {

                @Override
                public void onClick(View v) {
                    //Toast.makeText(getActivity(), "by_location", Toast.LENGTH_SHORT).show();
                    searchType_Callback.searchTypeSelected("location");

                }
            });

            ImageButton favorits =(ImageButton)getActivity().findViewById(R.id.favorits);
            favorits.setOnClickListener(new View.OnClickListener() {

                @Override
                public void onClick(View v) {
                    Toast.makeText(getActivity(), "favorits", Toast.LENGTH_SHORT).show();
                    searchType_Callback.searchTypeSelected("favorits");

                }
            });

            ImageButton history =(ImageButton)getActivity().findViewById(R.id.history);
            history.setOnClickListener(new View.OnClickListener() {

                @Override
                public void onClick(View v) {
                    Toast.makeText(getActivity(), "history", Toast.LENGTH_SHORT).show();
                    searchType_Callback.searchTypeSelected("history");

                }
            });
        }

        @Override
        public void onAttach(Activity activity) {
            super.onAttach(activity);

            try {
                searchType_Callback = (onSearchTypeListener)activity;
            } catch (ClassCastException e) {
                throw new ClassCastException(activity.toString() + " must implement onSearchTypeListener");
            }
        }

    }

LOG文件

01start activity ComponentInfoandroid.view.InflateException: Binary XML file line #8: Error inflating class fragment
-   at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2306)
-   at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2358)
-   at android.app.ActivityThread.access$600(ActivityThread.java:156)
-   at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1340)
-   at android.os.Handler.dispatchMessage(Handler.java:99)
-   at android.os.Looper.loop(Looper.java:153)
-   at android.app.ActivityThread.main(ActivityThread.java:5299)
-   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:833)
-   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
-   at dalvik.system.NativeStart.main(Native Method)
- Caused by: android.view.InflateException: Binary XML file line #8: Error inflating class fragment
-   at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704)
-   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.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:278)
-   at android.app.Activity.setContentView(Activity.java:1881)
-   at com.project.places.MainActivity.onCreate(MainActivity.java:18)
-   at android.app.Activity.performCreate(Activity.java:5122)
-   at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1081)
-   at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2270)
-   ... 11 more
- Caused by: java.lang.NullPointerException
-   at com.project.places.First_Page.onViewCreated(First_Page.java:36)
-   at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:906)
-   at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1082)
-   at android.support.v4.app.FragmentManagerImpl.addFragment(FragmentManager.java:1184)
-   at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:291)
-   at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:676)
-   ... 21 more

3 回答

  • 3

    引起:java.lang.NullPointerException - at com.project.places.First_Page.onViewCreated(First_Page.java:36

    onViewCreated() 中,您应该使用 view.findViewById() 而不是 getActivity().findViewById() 访问片段UI视图 . 在活动的视图层次结构中找不到片段't attached to the activity yet so it' .

  • 1

    你需要使用

    android:name = "com.project.places.First_Page"
    

    代替

    class = "com.project.places.First_Page"
    
  • 0
    <fragment 
        android:id="@+id/fragment_id"
        android:name="com.example.xxx.fragment.FragmentClassName"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        tools:layout="@layout/fragment_layout" />
    

    尝试为你的xml片段添加android:name . 它对我很有用 .

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