[英]android.view.InflateException: Binary XML file line #8: Error inflating class fragment
I am trying to inflate a layout into a fragment and i have #8: Error inflating class fragment my View does not even creating it fall on the inflate how to inflate correctly the layout ? 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?
my XML large: 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>
my container : 我的容器:
</FrameLayout>
my fragment layout: 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 main : 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");
}
}
}
the LOG file 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
Caused by: java.lang.NullPointerException - at com.project.places.First_Page.onViewCreated(First_Page.java:36
In your onViewCreated()
you should access the fragment UI views with view.findViewById()
instead of getActivity().findViewById()
. 在onViewCreated()
您应该使用view.findViewById()
而不是getActivity().findViewById()
来访问片段UI视图。 The fragment isn't attached to the activity yet so it's not found in the activity's view hierarchy either. 片段尚未附加到活动,因此在活动的视图层次结构中也找不到它。
You need to use 你需要使用
android:name = "com.project.places.First_Page"
instead of 代替
class = "com.project.places.First_Page"
<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" />
Try to add android:name for your xml fragment:).It works to me. 尝试为你的xml片段添加android:name。它对我很有用。
I gets this error when tried to put the Activity to constructor like this: 尝试将Activity放到这样的构造函数时,我收到此错误:
public MyView (Activity activity) {
super (activity);
}
public MyView (Activity activity, AttributeSet attrs) {
super (activity, attrs);
}
Remember that you can only put a Context in custom views constructors like this: 请记住,您只能将Context放在自定义视图构造函数中,如下所示:
public MyView (Context context) {
super (context);
}
public MyView (Context context, AttributeSet attrs) {
super (context, attrs);
}
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