Sphinx64 Sphinx64 - 2 months ago 13
Android Question

AppCompatDialogFragment did not create a View

I got this error:

09-08 08:21:27.855 2756-2756/com.ia.grafp.maturapp I/art: Not late-enabling -Xcheck:jni (already on)
09-08 08:21:28.168 2756-2769/com.ia.grafp.maturapp I/art: Background sticky concurrent mark sweep GC freed 3562(491KB) AllocSpace objects, 1(16KB) LOS objects, 48% free, 593KB/1143KB, paused 5.446ms total 31.994ms
09-08 08:21:28.444 2756-2769/com.ia.grafp.maturapp W/art: Suspending all threads took: 5.571ms
09-08 08:21:28.548 2756-2756/com.ia.grafp.maturapp W/art: Before Android 4.1, method android.graphics.PorterDuffColorFilter android.support.graphics.drawable.VectorDrawableCompat.updateTintFilter(android.graphics.PorterDuffColorFilter, android.content.res.ColorStateList, android.graphics.PorterDuff$Mode) would have incorrectly overridden the package-private method in android.graphics.drawable.Drawable
09-08 08:21:28.820 2756-2769/com.ia.grafp.maturapp W/art: Suspending all threads took: 5.720ms
09-08 08:21:28.824 2756-2769/com.ia.grafp.maturapp I/art: Background sticky concurrent mark sweep GC freed 3222(542KB) AllocSpace objects, 0(0B) LOS objects, 33% free, 1284KB/1941KB, paused 6.716ms total 15.066ms
09-08 08:21:28.853 2756-2756/com.ia.grafp.maturapp D/AndroidRuntime: Shutting down VM
09-08 08:21:28.854 2756-2756/com.ia.grafp.maturapp E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.ia.grafp.maturapp, PID: 2756
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.ia.grafp.maturapp/com.ia.grafp.maturapp.MainActivity}: android.view.InflateException: Binary XML file line #22: Error inflating class fragment
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2325)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387)
at android.app.ActivityThread.access$800(ActivityThread.java:151)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5254)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
Caused by: android.view.InflateException: Binary XML file line #22: Error inflating class fragment
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:763)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:806)
at android.view.LayoutInflater.inflate(LayoutInflater.java:504)
at android.view.LayoutInflater.inflate(LayoutInflater.java:414)
at android.view.LayoutInflater.inflate(LayoutInflater.java:365)
at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:276)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:136)
at com.ia.grafp.maturapp.MainActivity.onCreate(MainActivity.java:16)
at android.app.Activity.performCreate(Activity.java:5990)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2278)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387) 
at android.app.ActivityThread.access$800(ActivityThread.java:151) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:135) 
at android.app.ActivityThread.main(ActivityThread.java:5254) 
at java.lang.reflect.Method.invoke(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:372) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698) 
Caused by: java.lang.IllegalStateException: Fragment android.support.v7.app.AppCompatDialogFragment did not create a view.
at android.support.v4.app.FragmentManagerImpl.onCreateView(FragmentManager.java:2319)
at android.support.v4.app.FragmentController.onCreateView(FragmentController.java:120)
at android.support.v4.app.FragmentActivity.dispatchFragmentsOnCreateView(FragmentActivity.java:357)
at android.support.v4.app.BaseFragmentActivityHoneycomb.onCreateView(BaseFragmentActivityHoneycomb.java:31)
at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:80)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:733)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:806) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:504) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:414) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:365) 
at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:276) 
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:136) 
at com.ia.grafp.maturapp.MainActivity.onCreate(MainActivity.java:16) 
at android.app.Activity.performCreate(Activity.java:5990) 
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106) 
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2278) 
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387) 
at android.app.ActivityThread.access$800(ActivityThread.java:151) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:135) 
at android.app.ActivityThread.main(ActivityThread.java:5254) 
at java.lang.reflect.Method.invoke(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:372) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698) 


MainActivity.java

package com.ia.grafp.maturapp;

import android.net.Uri;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity
implements PictureFragment.OnFragmentInteractionListener /*Journal 1.)*/ {



@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

if (savedInstanceState == null) { //** Kommuniziert mit PictureFragment (Journal 1.) )
getSupportFragmentManager().beginTransaction() //**
.add(R.id.container, new PictureFragment()) //** // Container konnte nicht erreicht werden (can not resolve container) (Journal 2.)
.commit(); //**
}
}
public void onFragmentInteraction(Uri uri){
Toast toast = Toast.makeText(this, "Wheeee!",Toast.LENGTH_SHORT);
toast.show();
}

}


activity_main.xml

<?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="com.ia.grafp.maturapp.MainActivity"
android:id = "@+id/container">


<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello World!"
android:id="@+id/textView"
/>


<fragment
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:name="android.support.v7.app.AppCompatDialogFragment"
android:id="@+id/fragment_picture"
android:layout_alignParentStart="true"
tools:layout="@android:layout/simple_gallery_item"
android:layout_alignParentEnd="true"
android:layout_alignParentBottom="true" />

</RelativeLayout>


PictureFragment.java

package com.ia.grafp.maturapp;

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 PictureFragment.OnFragmentInteractionListener} interface
* to handle interaction events.
* Use the {@link PictureFragment#newInstance} factory method to
* create an instance of this fragment.
*/
public class PictureFragment extends Fragment {
// TODO: Rename parameter arguments, choose names that match
// the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
protected static final String ARG_PARAM1 = "param1";
protected static final String ARG_PARAM2 = "param2";

// TODO: Rename and change types of parameters
protected String mParam1;
protected String mParam2;


protected OnFragmentInteractionListener mListener;

public PictureFragment() {
// 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 PictureFragment.
*/
// TODO: Rename and change types and number of parameters
public static PictureFragment newInstance(String param1, String param2) {
PictureFragment fragment = new PictureFragment();
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_picture, 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");
}
}*/

public void onAttach(MainActivity activity) {
super.onAttach(activity);
try {
mListener = (OnFragmentInteractionListener) activity;
} catch (ClassCastException e) {
throw new ClassCastException(activity.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.
*/
interface OnFragmentInteractionListener {
// TODO: Update argument type and name
void onFragmentInteraction(Uri uri);
}

}


fragment_picture.xml

<FrameLayout 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"
tools:context="com.ia.grafp.maturapp.PictureFragment">

<!-- TODO: Update blank fragment layout -->
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="@string/hello_blank_fragment"
android:background="#5a2424" />

<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center"></LinearLayout>

</FrameLayout>

Answer
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.ia.grafp.maturapp/com.ia.grafp.maturapp.MainActivity}: android.view.InflateException: Binary XML file line #22: Error inflating class fragment

Start debbuging based up on this information, which I extracted from your error log.

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