studio - searchable android

No se puede crear una instancia de la clase android.support.v7.widget.SearchView

Question

Por favor que alguien me ayude! Intento agregar la vista de búsqueda de appcompat a mi proyecto. Sin éxito Cuando cambio android.support.v7.widget.SearchView a SearchView (API> 10) todo está bien.

Este es mi menú res:

<item android:id="@+id/action_search"
    android:title="@string/search_view_title"
    android:icon="@drawable/action_search"
    sabd:showAsAction="always|collapseActionView"
    sabd:actionViewClass="android.support.v7.widget.SearchView" />

Así es como trato de usar SeachView:

    @Override
    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
        inflater.inflate(R.menu.teach, menu);
        mSearchItem = menu.findItem(R.id.action_search);
        mSearchItem.setVisible(true);
        mSearchView = (SearchView) MenuItemCompat.getActionView(mSearchItem);
        mSearchView.setQueryHint(getString(R.string.search_view_hint));
        mSearchView.setOnQueryTextListener(this);
    }

Este es mi archivo manifiesto:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="ru.rgups.time"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="10"
        android:targetSdkVersion="17" />

    <uses-permission android:name="android.permission.INTERNET"/>
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/Theme.Base.AppCompat.Light"
        android:name="RTApplication">
        <activity
            android:name="ru.rgups.time.MainActivity"
            android:configChanges="orientation|keyboardHidden"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity android:name=".fragments.WelcomeActivity"></activity>
        <service android:name=".spice.SampleSpiceService"></service>
        <activity android:name=".activities.AuthActivity"></activity>
        <activity 
            android:name=".activities.HomeWorkActivity"
            android:uiOptions="splitActionBarWhenNarrow">

        </activity>

        <receiver android:name="ru.rgups.time.receiver.HomeWorkNotificationReceiver">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>
        </receiver>

    </application>

</manifest>

Y esto lo que veo en los logs:

   03-22 21:46:58.583: W/SupportMenuInflater(28798): Cannot instantiate class: android.support.v7.widget.SearchView
    03-22 21:46:58.583: W/SupportMenuInflater(28798): java.lang.reflect.InvocationTargetException
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at java.lang.reflect.Constructor.constructNative(Native Method)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at android.support.v7.internal.view.SupportMenuInflater$MenuState.newInstance(SupportMenuInflater.java:482)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at android.support.v7.internal.view.SupportMenuInflater$MenuState.setItem(SupportMenuInflater.java:441)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at android.support.v7.internal.view.SupportMenuInflater$MenuState.addItem(SupportMenuInflater.java:462)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at android.support.v7.internal.view.SupportMenuInflater.parseMenu(SupportMenuInflater.java:196)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at android.support.v7.internal.view.SupportMenuInflater.inflate(SupportMenuInflater.java:118)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at ru.rgups.time.fragments.TeachersListFragment.onCreateOptionsMenu(TeachersListFragment.java:109)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at android.support.v4.app.Fragment.performCreateOptionsMenu(Fragment.java:1582)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at android.support.v4.app.FragmentManagerImpl.dispatchCreateOptionsMenu(FragmentManager.java:1956)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at android.support.v4.app.FragmentActivity.onCreatePanelMenu(FragmentActivity.java:225)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at android.support.v7.app.ActionBarActivity.superOnCreatePanelMenu(ActionBarActivity.java:232)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at android.support.v7.app.ActionBarActivityDelegateICS.onCreatePanelMenu(ActionBarActivityDelegateICS.java:147)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at android.support.v7.app.ActionBarActivity.onCreatePanelMenu(ActionBarActivity.java:199)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at android.support.v7.app.ActionBarActivityDelegateICS$WindowCallbackWrapper.onCreatePanelMenu(ActionBarActivityDelegateICS.java:285)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at com.android.internal.policy.impl.PhoneWindow.preparePanel(PhoneWindow.java:436)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at com.android.internal.policy.impl.PhoneWindow.doInvalidatePanelMenu(PhoneWindow.java:800)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at com.android.internal.policy.impl.PhoneWindow$1.run(PhoneWindow.java:221)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at android.view.Choreographer$CallbackRecord.run(Choreographer.java:761)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at android.view.Choreographer.doCallbacks(Choreographer.java:574)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at android.view.Choreographer.doFrame(Choreographer.java:543)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:747)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at android.os.Handler.handleCallback(Handler.java:733)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at android.os.Handler.dispatchMessage(Handler.java:95)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at android.os.Looper.loop(Looper.java:136)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at android.app.ActivityThread.main(ActivityThread.java:5017)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at java.lang.reflect.Method.invokeNative(Native Method)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at java.lang.reflect.Method.invoke(Method.java:515)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at dalvik.system.NativeStart.main(Native Method)
    03-22 21:46:58.583: W/SupportMenuInflater(28798): Caused by: android.view.InflateException: Binary XML file line #41: Error inflating class <unknown>
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at android.view.LayoutInflater.createView(LayoutInflater.java:620)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at android.view.LayoutInflater.onCreateView(LayoutInflater.java:669)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:694)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at android.view.LayoutInflater.rInflate(LayoutInflater.java:755)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at android.support.v7.widget.SearchView.<init>(SearchView.java:262)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at android.support.v7.widget.SearchView.<init>(SearchView.java:254)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  ... 31 more
    03-22 21:46:58.583: W/SupportMenuInflater(28798): Caused by: java.lang.reflect.InvocationTargetException
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at java.lang.reflect.Constructor.constructNative(Native Method)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at android.view.LayoutInflater.createView(LayoutInflater.java:594)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  ... 39 more
    03-22 21:46:58.583: W/SupportMenuInflater(28798): Caused by: android.content.res.Resources$NotFoundException: Resource is not a Drawable (color or path): TypedValue{t=0x2/d=0x7f010069 a=-1}
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at android.content.res.Resources.loadDrawable(Resources.java:2068)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at android.content.res.TypedArray.getDrawable(TypedArray.java:602)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at android.widget.ImageView.<init>(ImageView.java:129)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  at android.widget.ImageView.<init>(ImageView.java:119)
    03-22 21:46:58.583: W/SupportMenuInflater(28798):  ... 42 more

Answer 1

El problema estaba en la mala biblioteca de soporte v7. Después de actualizar todo bien.

Answer 2

Probablemente tuve una versión similar que apareció en mis compilaciones de lanzamiento, pero no mis compilaciones de depuración cuando cambié a la biblioteca de soporte v21. Resultó ser un problema de ofuscación, y agregar esta línea a mi archivo proguard-rules.txt solucionó:

-keep class android.support.v7.widget.SearchView { *; }

Answer 3

Tuve el mismo problema cuando estaba usando Android Studio y Gradle para compilar mi proyecto. Me gustaría añadir un SearchView de compat V7.

La solución es cambiar la versión del complemento gradle de 0.9.1 u otros a 0.9.0. Es una forma temporal que encontré. Es tal vez un error del plugin gradle. Espero que ayude.

    dependencies {
        classpath "com.android.tools.build:gradle:0.9.0"
    }