1
Fragmentを実装するActivityをテストしようとしています。クラスフラグメントをエミュレートするエラーフラグメントのテスト中に
私は私のアプリを実行しようとすると、私はエラーを取得：
Error inflating class fragment
IVEはActivityの代わりに、メインActivityでFragmentActivityを拡張する場合、それはたまたま読んで、しかし、私は活動に正しいことを継承自体。 何が問題なのでしょうか？
私の活動：
package apps.radwin.zxingprojectfragmenttwo;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.view.View;
public class MainActivity extends FragmentActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void selectFrag(View view) {
Fragment objFragment = new FragmentOne();
FragmentManager fragmentManager = getSupportFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.fragment_Two_Id, objFragment)
.commit();
}
}
活動レイアウト：
<?xml version="1.0" encoding="utf-8"?>
<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="apps.radwin.zxingprojectfragmenttwo.MainActivity">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello World!"
android:id="@+id/textView6" />
<fragment
android:id="@+id/fragment_One_Id"
android:name="apps.radwin.zxingprojectfragmenttwo.FragmentOne"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
tools:layout="@layout/fragment_fragment_one"
android:layout_below="@+id/fragment_Two_Id"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<fragment
android:id="@+id/fragment_Two_Id"
android:name="apps.radwin.zxingprojectfragmenttwo.FragmentTwo"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
tools:layout="@layout/fragment_fragment_two"
android:layout_below="@+id/textView6"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Activity Button Change First"
android:id="@+id/button2"
android:onClick="selectFrag"
android:layout_below="@+id/fragment_One_Id"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Activity Button Change Second"
android:id="@+id/button1"
android:onClick="selectFrag"
android:layout_below="@+id/button2"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
</RelativeLayout>
フルスタックトレース：
FATAL EXCEPTION: main
Process: apps.radwin.zxingprojectfragmenttwo, PID: 23530
java.lang.RuntimeException: Unable to start activity ComponentInfo {
apps.radwin.zxingprojectfragmenttwo/apps.radwin.zxingprojectfragmenttwo.MainActivity
}: android.view.InflateException: Binary XML file line #19: Binary XML file line # 19: Error inflating class fragment
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java: 3253)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java: 3349)
at android.app.ActivityThread.access$1100(ActivityThread.java: 221)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java: 1794)
at android.os.Handler.dispatchMessage(Handler.java: 102)
at android.os.Looper.loop(Looper.java: 158)
at android.app.ActivityThread.main(ActivityThread.java: 7224)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java: 1230)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java: 1120)
Caused by: android.view.InflateException: Binary XML file line #19: Binary XML file line # 19: Error inflating class fragment
at android.view.LayoutInflater.inflate(LayoutInflater.java: 551)
at android.view.LayoutInflater.inflate(LayoutInflater.java: 429)
at android.view.LayoutInflater.inflate(LayoutInflater.java: 380)
at com.android.internal.policy.PhoneWindow.setContentView(PhoneWindow.java: 474)
at android.app.Activity.setContentView(Activity.java: 2387)
at apps.radwin.zxingprojectfragmenttwo.MainActivity.onCreate(MainActivity.java: 15)
at android.app.Activity.performCreate(Activity.java: 6876)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java: 1135)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java: 3206)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java: 3349)
at android.app.ActivityThread.access$1100(ActivityThread.java: 221)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java: 1794)
at android.os.Handler.dispatchMessage(Handler.java: 102)
at android.os.Looper.loop(Looper.java: 158)
at android.app.ActivityThread.main(ActivityThread.java: 7224)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java: 1230)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java: 1120)
Caused by: android.view.InflateException: Binary XML file line #19: Error inflating class fragment
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:794)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:716)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:847)
at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:810)
at android.view.LayoutInflater.inflate(LayoutInflater.java:527)
at android.view.LayoutInflater.inflate(LayoutInflater.java:429)
at android.view.LayoutInflater.inflate(LayoutInflater.java:380)
at com.android.internal.policy.PhoneWindow.setContentView(PhoneWindow.java:474)
at android.app.Activity.setContentView(Activity.java:2387)
at apps.radwin.zxingprojectfragmenttwo.MainActivity.onCreate(MainActivity.java:15)
at android.app.Activity.performCreate(Activity.java:6876)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1135)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3206)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3349)
at android.app.ActivityThread.access$1100(ActivityThread.java:221)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1794)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:158)
at android.app.ActivityThread.main(ActivityThread.java:7224)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
Caused by: java.lang.RuntimeException: [email protected] must implement OnFragmentInteractionListener
at apps.radwin.zxingprojectfragmenttwo.FragmentOne.onAttach(FragmentOne.java:83)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1019)
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:766)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:716)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:847)
at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:810)
at android.view.LayoutInflater.inflate(LayoutInflater.java:527)
at android.view.LayoutInflater.inflate(LayoutInflater.java:429)
at android.view.LayoutInflater.inflate(LayoutInflater.java:380)
at com.android.internal.policy.PhoneWindow.setContentView(PhoneWindow.java:474)
at android.app.Activity.setContentView(Activity.java:2387)
at apps.radwin.zxingprojectfragmenttwo.MainActivity.onCreate(MainActivity.java:15)
at android.app.Activity.performCreate(Activity.java:6876)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1135)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3206)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3349)
at android.app.ActivityThread.access$1100(ActivityThread.java:221)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1794)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:158)
at android.app.ActivityThread.main(ActivityThread.java:7224)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
私FragmentOneクラス：
package apps.radwin.zxingprojectfragmenttwo;
import android.content.Context;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
/**
* A simple {@link Fragment} subclass.
* Activities that contain this fragment must implement the
* {@link FragmentOne.OnFragmentInteractionListener} interface
* to handle interaction events.
* Use the {@link FragmentOne#newInstance} factory method to
* create an instance of this fragment.
*/
public class FragmentOne extends Fragment {
// TODO: Rename parameter arguments, choose names that match
// the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
private static final String ARG_PARAM1 = "param1";
private static final String ARG_PARAM2 = "param2";
// TODO: Rename and change types of parameters
private String mParam1;
private String mParam2;
private OnFragmentInteractionListener mListener;
public FragmentOne() {
// Required empty public constructor
}
/**
* Use this factory method to create a new instance of
* this fragment using the provided parameters.
*
* @param param1 Parameter 1.
* @param param2 Parameter 2.
* @return A new instance of fragment FragmentOne.
*/
// TODO: Rename and change types and number of parameters
public static FragmentOne newInstance(String param1, String param2) {
FragmentOne fragment = new FragmentOne();
Bundle args = new Bundle();
args.putString(ARG_PARAM1, param1);
args.putString(ARG_PARAM2, param2);
fragment.setArguments(args);
return fragment;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getArguments() != null) {
mParam1 = getArguments().getString(ARG_PARAM1);
mParam2 = getArguments().getString(ARG_PARAM2);
}
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_fragment_one, container, false);
}
// TODO: Rename method, update argument and hook method into UI event
public void onButtonPressed(Uri uri) {
if (mListener != null) {
mListener.onFragmentInteraction(uri);
}
}
@Override
public void onAttach(Context context) {
super.onAttach(context);
if (context instanceof OnFragmentInteractionListener) {
mListener = (OnFragmentInteractionListener) context;
} else {
throw new RuntimeException(context.toString()
+ " must implement OnFragmentInteractionListener");
}
}
@Override
public void onDetach() {
super.onDetach();
mListener = null;
}
/**
* This interface must be implemented by activities that contain this
* fragment to allow an interaction in this fragment to be communicated
* to the activity and potentially other fragments contained in that
* activity.
* <p/>
* See the Android Training lesson <a href=
* "http://developer.android.com/training/basics/fragments/communicating.html"
* >Communicating with Other Fragments</a> for more information.
*/
public interface OnFragmentInteractionListener {
// TODO: Update argument type and name
void onFragmentInteraction(Uri uri);
}
}
を置き換えている間は、ビューグループ（最初のパラメータ）であるはずのフラグメントを渡しているコンテナを渡す必要があります。 FYI - xmlにフラグメントを追加した場合、プログラムでコミットする必要はありません。その他の問題はあなたが実装していないことですあなたの活動は "OnFragmentInteractionListener"です – Toppers