未在Android中加载片段<；6

我将用以下内容替换我的片段：

   @Override
   public void onNavigationDrawerItemSelected(int position) {
        fragmentManager = getSupportFragmentManager();
        android.support.v4.app.FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
        Fragment newFragment = null;
        String tag = "";
        switch (position) {
            case 0:
                newFragment = new MyFragment();
                tag = "termine";
                break;
            case 1:
                newFragment = new MyMapFragment();
                tag = "map";
                break;
            case 2:
                newFragment = new SearchFragment();
                tag = "search";
                break;
            case 3:
                break;
            case 4:
                newFragment = new SettingsFragment();
                tag = "settings";
                break;
            case 5:
                newFragment = new AboutFragment();
                tag = "about";
                break;
        }

        if (newFragment != null) {
            getSupportFragmentManager().beginTransaction()
                    .replace(R.id.container, newFragment, tag)
                    .addToBackStack(null)
                    .commit();
        }
    }

我的gradle文件：

buildscript {
    repositories {
        maven { url 'https://maven.fabric.io/public' }
    }

    dependencies {
        classpath 'io.fabric.tools:gradle:1.+'
    }
}
apply plugin: 'com.android.application'
apply plugin: 'io.fabric'

repositories {
    maven { url 'https://maven.fabric.io/public' }
}

android {
    compileSdkVersion 23
    buildToolsVersion '23.0.3'
//    useLibrary 'org.apache.http.legacy'

    defaultConfig {
        applicationId "com.myapp.coolapp"
        minSdkVersion 16
        targetSdkVersion 23
        multiDexEnabled true
        vectorDrawables.useSupportLibrary = true
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
            zipAlignEnabled true
            shrinkResources true
        }
    }
    dexOptions {
        javaMaxHeapSize "4g"
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:appcompat-v7:23.4.0'
    compile 'com.android.support:support-v4:23.4.0'
    compile 'com.android.support:multidex:1.0.1'
    compile 'com.android.support:recyclerview-v7:23.4.0'
    compile 'com.android.support:cardview-v7:23.4.0'
    compile 'com.google.android.gms:play-services:8.4.0'
    compile 'com.github.paolorotolo:appintro:3.4.0'
    compile 'com.prolificinteractive:material-calendarview:1.3.0'
    compile 'me.grantland:autofittextview:0.2.+'
    compile 'com.squareup.picasso:picasso:2.5.2'
    compile 'com.sothree.slidinguppanel:library:3.3.0'
    compile 'com.plattysoft.leonids:LeonidsLib:1.3.1'
    compile 'com.github.halysongoncalves:pugnotification:1.8.1'
    compile 'com.squareup.okhttp3:okhttp:3.2.0'
    compile 'com.github.amlcurran.showcaseview:library:5.4.3'
    compile 'it.sephiroth.android.library.targettooltip:target-tooltip-library:+'
    compile 'com.mikepenz:iconics-core:2.2.0@aar'
    compile 'com.mikepenz:fontawesome-typeface:4.4.0.1@aar'
    compile 'se.emilsjolander:stickylistheaders:2.7.0'
    compile('com.crashlytics.sdk.android:crashlytics:2.5.6@aar') {
        transitive = true;
    }
    compile('com.mikepenz:aboutlibraries:5.6.6@aar') {
        transitive = true
    }
    compile('com.crashlytics.sdk.android:answers:1.3.7@aar') {
        transitive = true;
    }
}

activity_main.xml

<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/drawer"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/myPrimaryColor"
    android:fitsSystemWindows="true">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar_actionbar"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:minHeight="?attr/actionBarSize"
            app:theme="@style/ToolBarStyle" />

        <FrameLayout
            android:id="@+id/container"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:clickable="true">

        </FrameLayout>

    </LinearLayout>


    <fragment
        android:id="@+id/fragment_drawer"
        android:name="com.myapp.coolapp.navigationdrawer.NavigationDrawerFragment"
        android:layout_width="@dimen/navigation_drawer_width"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        app:layout="@layout/fragment_navigation_drawer" />

</android.support.v4.widget.DrawerLayout>

NavigationDrawerFragment.java

public class NavigationDrawerFragment extends Fragment implements NavigationDrawerCallbacks {

    /**
     * Remember the position of the selected item.
     */
    private static final String STATE_SELECTED_POSITION = "selected_navigation_drawer_position";

    /**
     * Per the design guidelines, you should show the drawer on launch until the user manually
     * expands it. This shared preference tracks this.
     */
    private static final String PREF_USER_LEARNED_DRAWER = "navigation_drawer_learned";

    /**
     * A pointer to the current callbacks instance (the Activity).
     */
    private NavigationDrawerCallbacks mCallbacks;

    /**
     * Helper component that ties the action bar to the navigation drawer.
     */
    public ActionBarDrawerToggle mActionBarDrawerToggle;

    private DrawerLayout mDrawerLayout;
    private RecyclerView mDrawerList;
    private View mFragmentContainerView;

    private int mCurrentSelectedPosition = 0;
    private boolean mFromSavedInstanceState;
    private boolean mUserLearnedDrawer;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        // Read in the flag indicating whether or not the user has demonstrated awareness of the
        // drawer. See PREF_USER_LEARNED_DRAWER for details.
        SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(getActivity());
        mUserLearnedDrawer = sp.getBoolean(PREF_USER_LEARNED_DRAWER, false);

        if (savedInstanceState != null) {
            mCurrentSelectedPosition = savedInstanceState.getInt(STATE_SELECTED_POSITION);
            mFromSavedInstanceState = true;
        }
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment_navigation_drawer, container, false);
        mDrawerList = (RecyclerView) view.findViewById(R.id.drawerList);
        LinearLayoutManager layoutManager = new LinearLayoutManager(getActivity());
        layoutManager.setOrientation(LinearLayoutManager.VERTICAL);
        mDrawerList.setLayoutManager(layoutManager);
        mDrawerList.setHasFixedSize(true);

        final List<NavigationItem> navigationItems = getMenu();
        NavigationDrawerAdapter adapter = new NavigationDrawerAdapter(navigationItems);
        adapter.setNavigationDrawerCallbacks(this);
        mDrawerList.setAdapter(adapter);
        selectItem(mCurrentSelectedPosition);
        return view;
    }

    public boolean isDrawerOpen() {
        return mDrawerLayout != null && mDrawerLayout.isDrawerOpen(mFragmentContainerView);
    }

    public ActionBarDrawerToggle getActionBarDrawerToggle() {
        return mActionBarDrawerToggle;
    }

    public DrawerLayout getDrawerLayout() {
        return mDrawerLayout;
    }

    @Override
    public void onNavigationDrawerItemSelected(int position) {
        if (position != 3) {
            selectItem(position);
        }
    }

    public List<NavigationItem> getMenu() {
        List<NavigationItem> items = new ArrayList<NavigationItem>();
        items.add(new NavigationItem(getResources().getString(R.string.nav_title1)));
        items.add(new NavigationItem(getResources().getString(R.string.nav_title2)));
        items.add(new NavigationItem(getResources().getString(R.string.nav_title3)));
        items.add(new NavigationItem(""));
        items.add(new NavigationItem(getResources().getString(R.string.nav_title4)));
        items.add(new NavigationItem(getResources().getString(R.string.nav_title5)));
        return items;
    }

    /**
     * Users of this fragment must call this method to set up the navigation drawer interactions.
     *
     * @param fragmentId   The android:id of this fragment in its activity's layout.
     * @param drawerLayout The DrawerLayout containing this fragment's UI.
     * @param toolbar      The Toolbar of the activity.
     */
    public void setup(int fragmentId, DrawerLayout drawerLayout, Toolbar toolbar) {
        mFragmentContainerView = getActivity().findViewById(fragmentId);
        mDrawerLayout = drawerLayout;

        mDrawerLayout.setStatusBarBackgroundColor(getResources().getColor(R.color.myPrimaryDarkColor));

        mActionBarDrawerToggle = new ActionBarDrawerToggle(getActivity(), mDrawerLayout, toolbar, R.string.drawer_open, R.string.drawer_close) {
            @Override
            public void onDrawerClosed(View drawerView) {
                super.onDrawerClosed(drawerView);
                if (!isAdded()) return;

                getActivity().invalidateOptionsMenu();
            }

            @Override
            public void onDrawerOpened(View drawerView) {
                super.onDrawerOpened(drawerView);
                if (!isAdded()) return;
                if (!mUserLearnedDrawer) {
                    mUserLearnedDrawer = true;
                    SharedPreferences sp = PreferenceManager
                            .getDefaultSharedPreferences(getActivity());
                    sp.edit().putBoolean(PREF_USER_LEARNED_DRAWER, true).apply();
                }
                getActivity().invalidateOptionsMenu(); // calls onPrepareOptionsMenu()
            }
        };
        mDrawerLayout.post(new Runnable() {
            @Override
            public void run() {
                mActionBarDrawerToggle.syncState();
            }
        });
        mDrawerLayout.setDrawerListener(mActionBarDrawerToggle);
    }

    private void selectItem(int position) {
        mCurrentSelectedPosition = position;
        if (mDrawerLayout != null) {
            mDrawerLayout.closeDrawer(mFragmentContainerView);
        }
        if (mCallbacks != null) {
            mCallbacks.onNavigationDrawerItemSelected(position);
        }
    }

    public void openDrawer() {
        mDrawerLayout.openDrawer(mFragmentContainerView);
    }

    public void closeDrawer() {
        mDrawerLayout.closeDrawer(mFragmentContainerView);
    }

    @Override
    public void onAttach(Context context) {
        super.onAttach(context);
        try {
            mCallbacks = (NavigationDrawerCallbacks) context;
        } catch (ClassCastException e) {
            throw new ClassCastException("Activity must implement NavigationDrawerCallbacks.");
        }
    }

    @Override
    public void onDetach() {
        super.onDetach();
        mCallbacks = null;
    }

    @Override
    public void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        outState.putInt(STATE_SELECTED_POSITION, mCurrentSelectedPosition);
    }

    @Override
    public void onConfigurationChanged(Configuration newConfig) {
        super.onConfigurationChanged(newConfig);
        // Forward the new configuration the drawer toggle component.
        mActionBarDrawerToggle.onConfigurationChanged(newConfig);
    }

}

公共类NavigationDrawerFragment扩展片段实现NavigationDrawerCallbacks{
/**
*记住所选项目的位置。
*/
私有静态最终字符串状态\u SELECTED\u POSITION=“SELECTED\u navigation\u drawer\u POSITION”；
/**
*根据设计指南，您应该在启动时显示抽屉，直到用户手动启动
*展开它。此共享首选项将跟踪它。
*/
私有静态最终字符串PREF\u USER\u LEARNED\u DRAWER=“导航\u DRAWER\u LEARNED”；
/**
*指向当前回调实例（活动）的指针。
*/
专用导航抽屉回调mCallbacks；
/**
*将操作栏绑定到导航抽屉的帮助器组件。
*/
公共行动律师事务所律师事务所律师事务所律师事务所律师事务所律师事务所律师事务所律师事务所；
私人抽屉布局mDrawerLayout；
私人回收站查看mDrawerList；
私有视图MFFragmentContainerView；
private int mCurrentSelectedPosition=0；
私有布尔值mFromSavedInstanceState；
私有布尔mUserLearnedDrawer；
@凌驾
创建时的公共void（Bundle savedInstanceState）{
super.onCreate（savedInstanceState）；
//读入标志，指示用户是否已意识到
//抽屉。有关详细信息，请参阅首选用户抽屉。
SharedReferences sp=PreferenceManager.GetDefaultSharedReferences（getActivity（））；
mUserLearnedDrawer=sp.getBoolean（预用户已学习抽屉，false）；
如果（savedInstanceState！=null）{
mCurrentSelectedPosition=savedInstanceState.getInt（STATE\u SELECTED\u POSITION）；
mFromSavedInstanceState=true；
}
}
@凌驾
创建视图上的公共视图（布局、充气机、视图组容器、，
Bundle savedInstanceState）{
视图=充气机。充气（R.layout.fragment\u navigation\u抽屉、容器，错误）；
mDrawerList=（RecyclerView）view.findViewById（R.id.drawerList）；
LinearLayoutManager布局管理器=新的LinearLayoutManager（getActivity（））；
layoutManager.setOrientation（LinearLayoutManager.VERTICAL）；
mDrawerList.setLayoutManager（layoutManager）；
mDrawerList.setHasFixedSize（true）；
最终列表navigationItems=getMenu（）；
NavigationPaureRadapter适配器=新的NavigationPaureRadapter（navigationItems）；
adapter.setNavigationDrawerCallbacks（此）；
mDrawerList.setAdapter（适配器）；
selectItem（mCurrentSelectedPosition）；
返回视图；
}
公共布尔值isDrawerOpen（）{
返回mDrawerLayout！=null&&mDrawerLayout.isDrawerOpen（MFFragmentContainerView）；
}
公共操作BarDrawerToggle getActionBarDrawerToggle（）{
返回mActionBarDrawerToggle；
}
公共抽屉布局GetDroperLayout（）{
返回mDrawerLayout；
}
@凌驾
已选择NavigationDrawerItems上的公共无效（整数位置）{
如果（位置！=3）{
选择项目（位置）；
}
}
公共列表getMenu（）{
列表项=新建ArrayList（）；
添加（新的NavigationItem（getResources（）.getString（R.string.nav_title1））；
添加（新的NavigationItem（getResources（）.getString（R.string.nav_title2））；
添加（新的NavigationItem（getResources（）.getString（R.string.nav_title3））；
添加（新导航项（“”）；
添加（新的NavigationItem（getResources（）.getString（R.string.nav_title4））；
添加（新的NavigationItem（getResources（）.getString（R.string.nav_title5））；
退货项目；
}
/**
*此片段的用户必须调用此方法来设置导航抽屉交互。
*
*@param fragmentId此片段在其活动布局中的android:id。
*@param drawerLayout包含此片段UI的drawerLayout。
*@param toolbar活动的工具栏。
*/
公共空白设置（int fragmentId、抽屉布局、工具栏）{
MFFragmentContainerView=getActivity（）.findViewById（fragmentId）；
mDrawerLayout=抽屉式布局；
mDrawerLayout.setStatusBarBackgroundColor（getResources（）.getColor（R.color.myPrimaryDarkColor））；
mActionBarDrawerToggle=新操作BarDrawerToggle（getActivity（），mDrawerLayout，工具栏，R.string.drawer\u打开，R.string.drawer\u关闭）{
@凌驾
图纸上的公共空白已关闭（视图抽屉视图）{
super.onDrawerClosed（抽屉视图）；
如果（！isAdded（））返回；
getActivity（）.InvalidateOptions菜单（）；
}
@凌驾
打开图纸上的公共空白（视图抽屉视图）{
super.onDrawerOpened（抽屉视图）；
如果（！isAdded（））返回；
如果（！mUserLearnedDrawer）{
mUserLearnedDrawer=真；
SharedReferences sp=首选项管理器
.GetDefaultSharedReferences（getActivity（））；
sp.edit（）.putBoolean（PREF_USER_learn_DRAWER，true）.apply（）；
}
getActivity（）.InvalidateOptions菜单（）；//调用PrepareOptions菜单（）
}
};
mDrawerLayout.post（新的Runnable（）{
@凌驾
公开募捐{
mActionBarDrawerToggle.syncState（）；
}
});
mDrawerLayout.setDrawerListener（mActionBarDrawerToggle）；
}
私有void selectItem（内部位置）{
mCurrentSelectedPosition=位置；
if（mDrawerLayout！=null）{
mDrawerLayout.closeDrawer（MFFragmentContainerView）；
}
如果（mCallbacks！=null）{
mCallbacks.onNavigationDrawerItemSelected（位置）；
}