materialbutton - Android Studio-Error al inflar la clase EditText

error inflating class edittext

Question

He estado tratando de resolver este problema por un día completo ahora. Creé un nuevo proyecto en Android Studio y elegí la actividad de navegación de pestañas. A partir de ahí, agregué un texto simple de EditText en el XML de fragment_main.xml y lo ejecuté. Siempre me da un error de inflación EditText. Esto no ocurre con ningún otro elemento, por ejemplo, TextViews

fragment_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="packagename.MainActivity$PlaceholderFragment">

    <TextView
        android:id="@+id/section_label"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <EditText
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:inputType="textPersonName"
        android:text="Name"
        android:ems="10"
        android:layout_centerVertical="true"
        android:layout_centerHorizontal="true"
        android:id="@+id/editText3" />
</RelativeLayout>

Dependencias de Gradle:

dependencies {
    compile fileTree(dir: ''libs'', include: [''*.jar''])
    compile ''com.android.support:appcompat-v7:23.4.0''
    compile ''com.android.support:design:23.4.0''
    testCompile ''junit:junit:4.12''
    androidTestCompile ''com.android.support.test.espresso:espresso-core:2.2.2''
    androidTestCompile ''com.android.support.test:runner:0.5''
    androidTestCompile ''com.android.support:support-annotations:23.4.0''
}

Logcat:

Process: <package name>, PID: 20764
android.view.InflateException: Binary XML file line #16: Error inflating class EditText
  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 <package name>.MainActivity$PlaceholderFragment.onCreateView(MainActivity.java:119)
  at android.support.v4.app.Fragment.performCreateView(Fragment.java:1974)
  at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1067)
  at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1252)
  at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:742)
  at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1617)
  at android.support.v4.app.FragmentManagerImpl.executePendingTransactions(FragmentManager.java:570)
  at android.support.v4.app.FragmentPagerAdapter.finishUpdate(FragmentPagerAdapter.java:141)
  at android.support.v4.view.ViewPager.populate(ViewPager.java:1177)
  at android.support.v4.view.ViewPager.populate(ViewPager.java:1025)
  at android.support.v4.view.ViewPager.onMeasure(ViewPager.java:1545)
  at android.view.View.measure(View.java:17473)
  at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5463)
  at android.support.design.widget.CoordinatorLayout.onMeasureChild(CoordinatorLayout.java:668)
  at android.support.design.widget.CoordinatorLayout.onMeasure(CoordinatorLayout.java:735)
  at android.view.View.measure(View.java:17473)
  at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5463)
  at android.widget.FrameLayout.onMeasure(FrameLayout.java:430)
  at android.support.v7.widget.ContentFrameLayout.onMeasure(ContentFrameLayout.java:135)
  at android.view.View.measure(View.java:17473)
  at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5463)
  at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1438)
  at android.widget.LinearLayout.measureVertical(LinearLayout.java:724)
  at android.widget.LinearLayout.onMeasure(LinearLayout.java:615)
  at android.view.View.measure(View.java:17473)
  at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5463)
  at android.widget.FrameLayout.onMeasure(FrameLayout.java:430)
  at android.view.View.measure(View.java:17473)
  at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5463)
  at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1438)
  at android.widget.LinearLayout.measureVertical(LinearLayout.java:724)
  at android.widget.LinearLayout.onMeasure(LinearLayout.java:615)
  at android.view.View.measure(View.java:17473)
  at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5463)
  at android.widget.FrameLayout.onMeasure(FrameLayout.java:430)
  at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2622)
  at android.view.View.measure(View.java:17473)
  at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2030)
  at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1192)
  at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1399)
  at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1077)
  at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5845)
  at android.view.Choreographer$CallbackRecord.run(Choreographer.java:767)
  at android.view.Choreographer.doCallbacks(Choreographer.java:580)
  at android.view.Choreographer.doFrame(Choreographer.java:550)
  at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:753)
  at android.os.Handler.handleCallback(Handler.java:739)
  at android.os.Handler.dispatchMessage(Handler.java:95)
  at android.os.Looper.loop(Looper.java:135)
  at android.app.ActivityThread.main(ActivityThread.java:5272)
  at java.lang.reflect.Method.invoke(Native Method)
  at java.lang.reflect.Method.invoke(Method.java:372)
at

MainActivity.java

import android.support.design.widget.TabLayout;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;

import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;

import android.widget.TextView;

public class MainActivity extends AppCompatActivity {

    /**
     * The {@link android.support.v4.view.PagerAdapter} that will provide
     * fragments for each of the sections. We use a
     * {@link FragmentPagerAdapter} derivative, which will keep every
     * loaded fragment in memory. If this becomes too memory intensive, it
     * may be best to switch to a
     * {@link android.support.v4.app.FragmentStatePagerAdapter}.
     */
    private SectionsPagerAdapter mSectionsPagerAdapter;

    /**
     * The {@link ViewPager} that will host the section contents.
     */
    private ViewPager mViewPager;

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

        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);
        // Create the adapter that will return a fragment for each of the three
        // primary sections of the activity.
        mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());

        // Set up the ViewPager with the sections adapter.
        mViewPager = (ViewPager) findViewById(R.id.container);
        mViewPager.setAdapter(mSectionsPagerAdapter);

        TabLayout tabLayout = (TabLayout) findViewById(R.id.tabs);
        tabLayout.setupWithViewPager(mViewPager);

        FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
        fab.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
                        .setAction("Action", null).show();
            }
        });

    }


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }

    /**
     * A placeholder fragment containing a simple view.
     */
    public static class PlaceholderFragment extends Fragment {
        /**
         * The fragment argument representing the section number for this
         * fragment.
         */
        private static final String ARG_SECTION_NUMBER = "section_number";

        public PlaceholderFragment() {
        }

        /**
         * Returns a new instance of this fragment for the given section
         * number.
         */
        public static PlaceholderFragment newInstance(int sectionNumber) {
            PlaceholderFragment fragment = new PlaceholderFragment();
            Bundle args = new Bundle();
            args.putInt(ARG_SECTION_NUMBER, sectionNumber);
            fragment.setArguments(args);
            return fragment;
        }

        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container,
                                 Bundle savedInstanceState) {
            View rootView = inflater.inflate(R.layout.fragment_main, container, false);
            TextView textView = (TextView) rootView.findViewById(R.id.section_label);
            textView.setText(getString(R.string.section_format, getArguments().getInt(ARG_SECTION_NUMBER)));
            return rootView;
        }
    }

    /**
     * A {@link FragmentPagerAdapter} that returns a fragment corresponding to
     * one of the sections/tabs/pages.
     */
    public class SectionsPagerAdapter extends FragmentPagerAdapter {

        public SectionsPagerAdapter(FragmentManager fm) {
            super(fm);
        }

        @Override
        public Fragment getItem(int position) {
            // getItem is called to instantiate the fragment for the given page.
            // Return a PlaceholderFragment (defined as a static inner class below).
            return PlaceholderFragment.newInstance(position + 1);
        }

        @Override
        public int getCount() {
            // Show 3 total pages.
            return 3;
        }

        @Override
        public CharSequence getPageTitle(int position) {
            switch (position) {
                case 0:
                    return "SECTION 1";
                case 1:
                    return "SECTION 2";
                case 2:
                    return "SECTION 3";
            }
            return null;
        }
    }
}

Nota: Lo único que cambié fue agregar un EditText a fragment_main.xml después de crear el proyecto con una actividad de navegación con pestañas. Ninguno de los Java fue cambiado. También donde se ve el "nombre del paquete", este es en realidad el nombre completo de mi paquete, simplemente lo eliminé para esta cuestión de privacidad.

Gracias por adelantado

Answer 1

Me enfrenté al mismo error recientemente. Aparentemente, el problema es que Gradle 2.2-alpha * no sabe cómo manejar correctamente las imágenes de nueve parches de EditText . Especialmente uno que se encuentra en res/drawable-v21/abc_edit_text_material.xml . Este es un problema actualmente abierto en code.google [Referencia]

La solución es simple, solo degrada la versión de Gradle a 2.1 por ahora en lugar de 2.2-alpha2 o incluso 2.2-alpha3 . Funcionó perfectamente para mí cuando hice esto.

Saludos :)