Создание панели инструментов во фрагменте

У меня есть приложение с прорисовкой, в которой используются фрагменты. Я хочу создать отдельные панели инструментов для каждого фрагмента. Я искал интернет и использовал рекомендуемое решение, но мое приложение терпит крах, когда я пытаюсь включить MainActivity в AppCompact Activity, когда я хочу использовать setSupportActionBar(). Heres класс фрагмент:Создание панели инструментов во фрагменте

package sk.cassomedia.studentassitent.view; 


import android.os.Bundle; 
import android.support.v4.app.Fragment; 
import android.support.v7.app.AppCompatActivity; 
import android.support.v7.widget.Toolbar; 
import android.view.LayoutInflater; 
import android.view.Menu; 
import android.view.MenuItem; 
import android.view.View; 
import android.view.ViewGroup; 

import sk.cassomedia.studentassitent.R; 

public class Contacts extends Fragment { 

    private Toolbar toolbar; 

    public Contacts() { 
    // Required empty public constructor 
    } 


    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, 
         Bundle savedInstanceState) { 
     View view = inflater.inflate(R.layout.fragment_contacts, container, false); 
     AppCompatActivity activity = (AppCompatActivity) getActivity(); 
     toolbar = (Toolbar) view.findViewById(R.id.contacts_toolbar); 
     activity.setSupportActionBar(toolbar); 
     return view; 
    } 

    public boolean onCreateOptionsMenu(Menu menu) { 
     getActivity().getMenuInflater().inflate(R.menu.calendar_menu, menu); 
     return true; 
    } 

    @Override 
    public boolean onOptionsItemSelected(MenuItem item) { 
     return super.onOptionsItemSelected(item); 
    } 

    public static Fragment newInstance() { 
     Contacts contacts = new Contacts(); 

     return contacts; 
    } 
}

Heres макет фрагмента:

<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" 
tools:context="sk.cassomedia.studentassitent.view.Contacts"> 

<include 
    android:id="@+id/contacts_toolbar" 
    layout="@layout/contacts_toolbar"></include> 

<ListView 
    android:layout_width="wrap_content" 
    android:layout_height="836dp" 
    android:id="@+id/listView" 
    android:layout_gravity="center_horizontal|bottom" /> 
</RelativeLayout>

и панель инструментов XML

<?xml version="1.0" encoding="utf-8"?> 
<android.support.v7.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    android:background="@color/colorPrimary" 
    android:elevation="4dp"> 
</android.support.v7.widget.Toolbar>

И сообщение об ошибке

02-22 09:09:07.835 12623-12623/sk.cassomedia.studentassitent E/AndroidRuntime: FATAL EXCEPTION: main 
                      java.lang.ClassCastException: sk.cassomedia.studentassitent.MainActivity cannot be cast to android.support.v7.app.ActionBarActivity 
                       at sk.cassomedia.studentassitent.view.Contacts.onCreateView(Contacts.java:30) 
                       at android.support.v4.app.Fragment.performCreateView(Fragment.java:1962) 
                       at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1067) 
                       at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1248) 
                       at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:738) 
                       at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1613) 
                       at android.support.v4.app.FragmentManagerImpl.executePendingTransactions(FragmentManager.java:570) 
                       at android.support.v4.app.FragmentStatePagerAdapter.finishUpdate(FragmentStatePagerAdapter.java:163) 
                       at android.support.v4.view.ViewPager.populate(ViewPager.java:1106) 
                       at android.support.v4.view.ViewPager.populate(ViewPager.java:952) 
                       at android.support.v4.view.ViewPager$3.run(ViewPager.java:251) 
                       at android.support.v4.view.ViewPager.completeScroll(ViewPager.java:1849) 
                       at android.support.v4.view.ViewPager.onInterceptTouchEvent(ViewPager.java:1978) 
                       at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2033) 
                       at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2401) 
                       at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2091) 
                       at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2401) 
                       at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2091) 
                       at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2401) 
                       at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2091) 
                       at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:2306) 
                       at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1575) 
                       at android.app.Activity.dispatchTouchEvent(Activity.java:2470) 
                       at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:2254) 
                       at android.view.View.dispatchPointerEvent(View.java:7888) 
                       at android.view.ViewRootImpl.deliverPointerEvent(ViewRootImpl.java:3977) 
                       at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:3861) 
                       at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:5101) 
                       at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:5080) 
                       at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:5179) 
                       at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:185) 
                       at android.os.MessageQueue.nativePollOnce(Native Method) 
                       at android.os.MessageQueue.next(MessageQueue.java:125) 
                       at android.os.Looper.loop(Looper.java:138) 
                       at android.app.ActivityThread.main(ActivityThread.java:5365) 
                       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:1102) 
                       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869) 
                       at dalvik.system.NativeStart.main(Native Method)

styles.xml

<!-- Base application theme. --> 
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar"> 
    <!-- Customize your theme here. --> 
    <item name="colorPrimary">@color/colorPrimary</item> 
    <item name="colorPrimaryDark">@color/colorPrimaryDark</item> 
    <item name="colorAccent">@color/colorAccent</item> 
</style>

MainActivity

package sk.cassomedia.studentassitent; 

import android.support.v4.app.FragmentActivity; 
import android.support.v4.view.ViewPager; 
import android.os.Bundle; 


import sk.cassomedia.studentassitent.controllers.FragmentAdapter; 

public class MainActivity extends FragmentActivity { 

    static final int NUMBER_OF_SCREENS = 3; 

    private FragmentAdapter adapter; 
    private ViewPager viewPage; 

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

     adapter = new FragmentAdapter(getSupportFragmentManager()); 
     viewPage = (ViewPager) findViewById(R.id.pager); 
     viewPage.setAdapter(adapter); 
    } 
}

Log сообщение, если я меняю основную деятельность по расширяет AppCompat активность

02-22 09:15:26.757 14192-14192/sk.cassomedia.studentassitent E/AndroidRuntime: FATAL EXCEPTION: main 
                      java.lang.ClassCastException: sk.cassomedia.studentassitent.MainActivity cannot be cast to android.support.v7.app.ActionBarActivity 
                       at sk.cassomedia.studentassitent.view.Contacts.onCreateView(Contacts.java:30) 
                       at android.support.v4.app.Fragment.performCreateView(Fragment.java:1962) 
                       at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1067) 
                       at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1248) 
                       at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:738) 
                       at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1613) 
                       at android.support.v4.app.FragmentManagerImpl.executePendingTransactions(FragmentManager.java:570) 
                       at android.support.v4.app.FragmentStatePagerAdapter.finishUpdate(FragmentStatePagerAdapter.java:163) 
                       at android.support.v4.view.ViewPager.populate(ViewPager.java:1106) 
                       at android.support.v4.view.ViewPager.populate(ViewPager.java:952) 
                       at android.support.v4.view.ViewPager$3.run(ViewPager.java:251) 
                       at android.support.v4.view.ViewPager.completeScroll(ViewPager.java:1849) 
                       at android.support.v4.view.ViewPager.onInterceptTouchEvent(ViewPager.java:1978) 
                       at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2033) 
                       at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2401) 
                       at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2091) 
                       at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2401) 
                       at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2091) 
                       at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2401) 
                       at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2091) 
                       at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2401) 
                       at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2091) 
                       at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2401) 
                       at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2091) 
                       at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:2306) 
                       at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1575) 
                       at android.app.Activity.dispatchTouchEvent(Activity.java:2470) 
                       at android.support.v7.view.WindowCallbackWrapper.dispatchTouchEvent(WindowCallbackWrapper.java:60) 
                       at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:2254) 
                       at android.view.View.dispatchPointerEvent(View.java:7888) 
                       at android.view.ViewRootImpl.deliverPointerEvent(ViewRootImpl.java:3977) 
                       at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:3861) 
                       at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:5101) 
                       at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:5080) 
                       at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:5179) 
                       at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:185) 
                       at android.os.MessageQueue.nativePollOnce(Native Method) 
                       at android.os.MessageQueue.next(MessageQueue.java:125) 
                       at android.os.Looper.loop(Looper.java:138) 
                       at android.app.ActivityThread.main(ActivityThread.java:5365) 
                       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:1102) 
                       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869) 
                       at dalvik.system.NativeStart.main(Native Method)

источник

2016-02-22 Matúš Kačmár

опубликовать ошибку LogCat – sasikumar

Не могли бы вы опубликовать LogCat и styles.xml – Rahul

его вопрос с mainactivity ,, почему вы расширяете его адвокатской деятельности действия –

Попробуйте изменить MainActivity родительский класс AppCompatActivity.

источник

2016-02-22 08:11:35

результат такой же, он выходит из строя, когда i проведите пальцем по контактам фрагмент –

Ive добавил сообщение logcat на вопрос –

Попробуйте изменить 'AppCompatActivity activity = (AppCompatActivity) getActivity();' to' MainActivity activity = (MainActivity) getActivity(); ' –

Создание панели инструментов во фрагменте

ответ

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