Android SliderでNoClassDefFoundErrorエラーが発生しました

Question

スライダー付きのアプリを作成していて、うまくいきました。別のビューを追加して、OnClickListener()を新しく追加したビューに実装しました。その後、次のエラーが表示されます。

Process: com.spintum.preexam, PID: 31905 
java.lang.NoClassDefFoundError: com.spintum.preexam.CustomList$DrawerItemHolder 
     at com.spintum.preexam.CustomList.getView(CustomList.java:38) 
     at android.widget.AbsListView.obtainView(AbsListView.java:2338) 
     at android.widget.ListView.makeAndAddView(ListView.java:1812) 
     at android.widget.ListView.fillDown(ListView.java:698) 
     at android.widget.ListView.fillFromTop(ListView.java:759) 
     at android.widget.ListView.layoutChildren(ListView.java:1645) 
     at android.widget.AbsListView.onLayout(AbsListView.java:2149) 
     at android.view.View.layout(View.java:15125) 
     at android.view.ViewGroup.layout(ViewGroup.java:4862) 
     at android.support.v4.widget.DrawerLayout.onLayout(DrawerLayout.java:931) 
     at android.view.View.layout(View.java:15125) 
     at android.view.ViewGroup.layout(ViewGroup.java:4862) 
     at android.widget.FrameLayout.layoutChildren(FrameLayout.java:515) 
     at android.widget.FrameLayout.onLayout(FrameLayout.java:450) 
     at android.view.View.layout(View.java:15125) 
     at android.view.ViewGroup.layout(ViewGroup.java:4862) 
     at com.android.internal.widget.ActionBarOverlayLayout.onLayout(ActionBarOverlayLayout.java:374) 
     at android.view.View.layout(View.java:15125) 
     at android.view.ViewGroup.layout(ViewGroup.java:4862) 
     at android.widget.FrameLayout.layoutChildren(FrameLayout.java:515) 
     at android.widget.FrameLayout.onLayout(FrameLayout.java:450) 
     at android.view.View.layout(View.java:15125) 
     at android.view.ViewGroup.layout(ViewGroup.java:4862) 
     at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2317) 
     at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2023) 
     at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1189) 
     at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6223) 
     at android.view.Choreographer$CallbackRecord.run(Choreographer.java:788) 
     at android.view.Choreographer.doCallbacks(Choreographer.java:591) 
     at android.view.Choreographer.doFrame(Choreographer.java:560) 
     at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:774) 
     at android.os.Handler.handleCallback(Handler.java:808) 
     at android.os.Handler.dispatchMessage(Handler.java:103) 
     at android.os.Looper.loop(Looper.java:193) 
     at android.app.ActivityThread.main(ActivityThread.java:5292) 
     at java.lang.reflect.Method.invokeNative(Native Method) 
     at java.lang.reflect.Method.invoke(Method.java:515) 
     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:824) 
     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:640) 
     at dalvik.system.NativeStart.main(Native Method) 

logcatは

public class CustomList extends ArrayAdapter<DrawerItem> { 

    Context context; 
    List<DrawerItem> drawerItemList; 
    int layoutResID; 

    public CustomList(Context context, int layoutResourceID, 
       List<DrawerItem> listItems) { 
     super(context, layoutResourceID, listItems); 
     this.context = context; 
     this.drawerItemList = listItems; 
     this.layoutResID = layoutResourceID; 

    } 

    @Override 
    public View getView(int position, View convertView, ViewGroup parent) { 
     // TODO Auto-generated method stub 

     DrawerItemHolder drawerHolder; 
     View view = convertView; 
     if (view == null) { 
       LayoutInflater inflater = ((Activity) context).getLayoutInflater(); 
       drawerHolder = new DrawerItemHolder(); 
       view = inflater.inflate(layoutResID, parent, false); 
       drawerHolder.ItemName = (TextView) view.findViewById(R.id.drawer_item_text); 
       drawerHolder.icon = (ImageView) view.findViewById(R.id.drawer_item_icon); 
       view.setTag(drawerHolder); 
     } else { 
       drawerHolder = (DrawerItemHolder) view.getTag(); 
     } 
     DrawerItem dItem = (DrawerItem) this.drawerItemList.get(position); 
     drawerHolder.icon.setImageDrawable(view.getResources().getDrawable(
        dItem.getImgResID())); 
     drawerHolder.ItemName.setText(dItem.getItemName()); 
     return view; 
    } 

    private static class DrawerItemHolder { 
     TextView ItemName; 
     ImageView icon; 
    } 
} 

エラーがdrawerHolder = new DrawerItemHolder();線で示されているが、以下のようにNoClassDefFoundエラーがあることを示しているクラス。 私はこのクラスに何も変更を加えていないので、フラグメントコンテナとして機能するオリジナルのアクティビティで追加した余分なビューによって問題が発生する可能性があると考えています。

public class Home extends Activity { 
private DrawerLayout mDrawerLayout; 
private ListView mDrawerList; 
private ActionBarDrawerToggle mDrawerToggle; 
private CharSequence mDrawerTitle; 
private CharSequence mTitle; 
private String[] mPlanetTitles; 
private static int pos; 
List<DrawerItem> dataList = new ArrayList<DrawerItem>(); 
View statistics,test,syllabus,share; 
@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_home); 
    this.getActionBar().setBackgroundDrawable(
      getResources().getDrawable(R.color.background)); 
    this.overridePendingTransition(R.layout.fade_in, R.layout.fade_out); 
    mTitle = mDrawerTitle = getTitle(); 
    mPlanetTitles = getResources().getStringArray(R.array.planets_array); 
    mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout); 
    mDrawerList = (ListView) findViewById(R.id.left_drawer); 
    statistics=findViewById(R.id.statistics_container); 
    test=findViewById(R.id.test_container); 
    syllabus=findViewById(R.id.syllabus_container); 
    share=findViewById(R.id.share_container); 
    statistics.setOnClickListener(mBottomDrawerListener); 
    syllabus.setOnClickListener(mBottomDrawerListener); 
    test.setOnClickListener(mBottomDrawerListener); 
    share.setOnClickListener(mBottomDrawerListener); 
    TextView image=(TextView)findViewById(R.id.statistics_image); 
    TextView text=(TextView)findViewById(R.id.statistics); 
    image.setTextColor(Color.parseColor("#03a9f4")); 
    text.setTextColor(Color.parseColor("#03a9f4")); 

    // set a custom shadow that overlays the main content when the drawer opens 
    mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow,GravityCompat.START); 
    int width = getResources().getDisplayMetrics().widthPixels; 
    DrawerLayout.LayoutParams params = (android.support.v4.widget.DrawerLayout.LayoutParams) mDrawerList.getLayoutParams(); 
    //params.width = (width * 75)/100; 
    mDrawerList.setLayoutParams(params); 
    // set up the drawer's list view with items and click listener 
    /* 
    * mDrawerList.setAdapter(new ArrayAdapter<String>(this, 
    * R.layout.list_item, mPlanetTitles)); 
    */ 
    dataList.add(new DrawerItem("Home", R.drawable.home)); 
    dataList.add(new DrawerItem("Intelligence Questionnaire", 
      R.drawable.bulb)); 
    dataList.add(new DrawerItem("Change Country", R.drawable.location)); 
    dataList.add(new DrawerItem("LeaderBoard", R.drawable.cup)); 
    dataList.add(new DrawerItem("How to play", R.drawable.help)); 
    dataList.add(new DrawerItem("Exam Tips", R.drawable.tip)); 
    mDrawerList.setAdapter(new CustomList(Home.this, R.layout.list_item,dataList)); 
    mDrawerList.setOnItemClickListener(new DrawerItemClickListener()); 
    // enable ActionBar app icon to behave as action to toggle nav drawer 
    getActionBar().setDisplayHomeAsUpEnabled(true); 
    getActionBar().setHomeButtonEnabled(true); 
    // ActionBarDrawerToggle ties together the the proper interactions 
    // between the sliding drawer and the action bar app icon 
    mDrawerToggle = new ActionBarDrawerToggle(this, /* host Activity */ mDrawerLayout, /* DrawerLayout object */R.drawable.ic_drawer, /* nav drawer image to replace 'Up' caret */R.string.drawer_open, /* "open drawer" description for accessibility */ 
    R.string.drawer_close /* "close drawer" description for accessibility */) { 
     public void onDrawerClosed(View view) { 
      getActionBar().setTitle(mTitle); 
      invalidateOptionsMenu(); // creates call to 
             // onPrepareOptionsMenu() 
     } 
     public void onDrawerOpened(View drawerView) { 
      getActionBar().setTitle(mDrawerTitle); 
      invalidateOptionsMenu(); // creates call to 
             // onPrepareOptionsMenu() 
     } 
    }; 
    mDrawerLayout.setDrawerListener(mDrawerToggle); 
    if (savedInstanceState == null) { 
     selectItem(0); 
    } 
    Typeface iconfont=FontManager.getTypeface(getApplicationContext(),FontManager.FONTAWESOME); 
    FontManager.markAsIconContainer(findViewById(R.id.btm_nav_bar),iconfont); 
} 
public View.OnClickListener mBottomDrawerListener=new View.OnClickListener() { 
    @Override 
    public void onClick(View v) { 
     FragmentManager fragmentManager=getFragmentManager(); 
     setBlackText(v); 
     TextView image,text; 
     switch (v.getId()){ 
      case R.id.statistics_container: 
       fragmentManager.beginTransaction().replace(R.id.content_frame,new HomePage()).commit(); 
       image=(TextView)v.findViewById(R.id.statistics_image); 
       text=(TextView)v.findViewById(R.id.statistics); 
       image.setTextColor(Color.parseColor("#03a9f4")); 
       text.setTextColor(Color.parseColor("#03a9f4")); 
       break; 
      case R.id.syllabus_container: 
       image=(TextView)v.findViewById(R.id.syllabus_image); 
       text=(TextView)v.findViewById(R.id.syllabus_btm); 
       image.setTextColor(Color.parseColor("#03a9f4")); 
       text.setTextColor(Color.parseColor("#03a9f4")); 
       break; 
      case R.id.test_container: 
       image=(TextView)v.findViewById(R.id.test_image); 
       text=(TextView)v.findViewById(R.id.Tests); 
       image.setTextColor(Color.parseColor("#03a9f4")); 
       text.setTextColor(Color.parseColor("#03a9f4")); 
       break; 
      case R.id.share_container: 
       image=(TextView)v.findViewById(R.id.share_image); 
       text=(TextView)v.findViewById(R.id.share_btm); 
       image.setTextColor(Color.parseColor("#03a9f4")); 
       text.setTextColor(Color.parseColor("#03a9f4")); 
       break; 

     } 
} 
}; 
public void setBlackText(View v){ 
    TextView img[]=new TextView[4]; 
    TextView t1,t2,t3,t4; 
    img[0]=(TextView)findViewById(R.id.statistics_image); 
    t4=(TextView)findViewById(R.id.statistics); 
    img[1]=(TextView)findViewById(R.id.test_image); 
    t1=(TextView)findViewById(R.id.Tests); 
    img[2]=(TextView)findViewById(R.id.syllabus_image); 
    t2=(TextView)findViewById(R.id.syllabus_btm); 
    img[3]=(TextView)findViewById(R.id.share_image); 
    t3=(TextView)findViewById(R.id.share_btm); 
    for(TextView singleTextView:img){ 
     singleTextView.setTextColor(Color.parseColor("#000000")); 
    } 
    t1.setTextColor(Color.parseColor("#000000")); 
    t2.setTextColor(Color.parseColor("#000000")); 
    t3.setTextColor(Color.parseColor("#000000")); 
    t4.setTextColor(Color.parseColor("#000000")); 
} 
/* 
* @Override public boolean onCreateOptionsMenu(Menu menu) { MenuInflater 
* inflater = getMenuInflater(); inflater.inflate(R.menu.activity_main, 
* menu); return super.onCreateOptionsMenu(menu); } 
* 
* Called whenever we call invalidateOptionsMenu() 
* 
* @Override public boolean onPrepareOptionsMenu(Menu menu) { // If the nav 
* drawer is open, hide action items related to the content view boolean 
* drawerOpen = mDrawerLayout.isDrawerOpen(mDrawerList); 
* //menu.findItem(R.id.action_websearch).setVisible(!drawerOpen); return 
* super.onPrepareOptionsMenu(menu); } 
*/ 

@Override 
public boolean onOptionsItemSelected(MenuItem item) { 
    // The action bar home/up action should open or close the drawer. 
    // ActionBarDrawerToggle will take care of this. 
    if (mDrawerToggle.onOptionsItemSelected(item)) { 
     return true; 
    } 
    // Handle action buttons 
    switch (item.getItemId()) { 
    case 1: 
     // create intent to perform web search for this planet 
     Intent intent = new Intent(Intent.ACTION_WEB_SEARCH); 
     intent.putExtra(SearchManager.QUERY, getActionBar().getTitle()); 
     // catch event that there's no activity to handle intent 
     if (intent.resolveActivity(getPackageManager()) != null) { 
      startActivity(intent); 
     } else { 
      Toast.makeText(this, R.string.app_not_available, 
        Toast.LENGTH_LONG).show(); 
     } 
     return true; 
    default: 
     return super.onOptionsItemSelected(item); 
    } 
} 

/* The click listner for ListView in the navigation drawer */ 
private class DrawerItemClickListener implements 
     ListView.OnItemClickListener { 
    @Override 
    public void onItemClick(AdapterView<?> parent, View view, int position, 
      long id) { 
     selectItem(position); 
    } 
} 

private void selectItem(int position) { 
    // update the main content by replacing fragments 
    /* 
    * Fragment fragment = new HomePage(); Bundle args = new Bundle(); 
    * args.putInt(PlanetFragment.ARG_PLANET_NUMBER, position); 
    * fragment.setArguments(args); 
    */ 
    pos = position; 
    FragmentManager fragmentManager = getFragmentManager(); 
    switch (pos) { 
    case 0: 
     fragmentManager.beginTransaction().replace(R.id.content_frame, new Fragment_Statistics()).commit(); 
     break; 
    case 1: 
     break; 
    case 2: 
     fragmentManager.beginTransaction().replace(R.id.content_frame, new Country()).commit(); 
    case 3:break; 
    case 4:break; 
    case 5:break; 
    } 
    // update selected item and title, then close the drawer 
    mDrawerList.setItemChecked(position, true); 
    setTitle(mPlanetTitles[position]); 
    mDrawerLayout.closeDrawer(mDrawerList); 
} 

@Override 
public void setTitle(CharSequence title) { 
    mTitle = title; 
    getActionBar().setTitle(mTitle); 
} 

/** 
* When using the ActionBarDrawerToggle, you must call it during 
* onPostCreate() and onConfigurationChanged()... 
*/ 

@Override 
protected void onPostCreate(Bundle savedInstanceState) { 
    super.onPostCreate(savedInstanceState); 
    // Sync the toggle state after onRestoreInstanceState has occurred. 
    mDrawerToggle.syncState(); 
} 

@Override 
public void onConfigurationChanged(Configuration newConfig) { 
    super.onConfigurationChanged(newConfig); 
    // Pass any configuration change to the drawer toggls 
    mDrawerToggle.onConfigurationChanged(newConfig); 
} 
} 

は私が間違っているつもりですどこの誰かが見ることができる

public class DrawerItem { 

String ItemName; 
int imgResID; 

public DrawerItem(String itemName, int imgResID) { 
     super(); 
     ItemName = itemName; 
     this.imgResID = imgResID; 
} 

public String getItemName() { 
     return ItemName; 
} 
public void setItemName(String itemName) { 
     ItemName = itemName; 
} 
public int getImgResID() { 
     return imgResID; 
} 
public void setImgResID(int imgResID) { 
     this.imgResID = imgResID; 
}} 

以下の通りであるHome活動に使用さDrawerItemクラスを以下のようにアクティビティのコードはありますか？ありがとうございます。

Answer 1

クラスは公開されている必要があります。少なくとも、プライベートではありません。