supportInvalidateOptionsMenu（）でクラスをインスタンス化できません。

Question

私はActionBarSherlockを使用しています。アイテムをクリックするたびにActionBarの再構築が必要です。 、

@Override 
public boolean onCreateOptionsMenu(Menu menu) { 
    MenuInflater inflater = getSupportMenuInflater(); 
    inflater.inflate(R.menu.paperplayer, menu); 
    if (isBiggestFontsize(getCurrentFontsize())) menu.findItem(R.id.ic_action_textup).setEnabled(false); 
    if (isSmallestFontsize(getCurrentFontsize())) menu.findItem(R.id.ic_action_textdown).setEnabled(false);  
    return true; 
} 

@Override 
public boolean onOptionsItemSelected(MenuItem item) { 
    switch (item.getItemId()) { 
    case android.R.id.home: 
     // app icon in action bar clicked; go home 
     Intent intent = new Intent(this, Library.class); 
     intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); 
     startActivity(intent); 
     return true; 
    case R.id.ic_action_textup: 
     setFontSizeUp(); 
     return true; 
    case R.id.ic_action_textdown: 
     setFontSizeDown(); 
     return true; 
    default: 
     return super.onOptionsItemSelected(item); 
    } 
} 

そのはうまく機能：

supportInvalidateOptionsMenu(); 

毎回を使用しているイムのために、私が（MenuInflaterでタグ付けされた）警告

Cannot instantiate class: @16974108 
java.lang.ClassNotFoundException: @16974108 in loader dalvik.system.PathClassLoader[/data/app/de.abc.android.reader-1.apk] 
    at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:251) 
    at java.lang.ClassLoader.loadClass(ClassLoader.java:540) 
    at java.lang.ClassLoader.loadClass(ClassLoader.java:500) 
    at com.actionbarsherlock.view.MenuInflater$MenuState.newInstance(MenuInflater.java:463) 
    at com.actionbarsherlock.view.MenuInflater$MenuState.readItem(MenuInflater.java:366) 
    at com.actionbarsherlock.view.MenuInflater.parseMenu(MenuInflater.java:147) 
    at com.actionbarsherlock.view.MenuInflater.inflate(MenuInflater.java:97) 
    at de.abc.android.reader.ui.PaperPlayer.onCreateOptionsMenu(PaperPlayer.java:102) 
    at com.actionbarsherlock.app.SherlockFragmentActivity.onCreatePanelMenu(SherlockFragmentActivity.java:231) 
    at com.actionbarsherlock.ActionBarSherlock.callbackCreateOptionsMenu(ActionBarSherlock.java:543) 
    at com.actionbarsherlock.internal.ActionBarSherlockCompat.preparePanel(ActionBarSherlockCompat.java:463) 
    at com.actionbarsherlock.internal.ActionBarSherlockCompat.dispatchInvalidateOptionsMenu(ActionBarSherlockCompat.java:269) 
    at com.actionbarsherlock.app.SherlockFragmentActivity.invalidateOptionsMenu(SherlockFragmentActivity.java:138) 
    at com.actionbarsherlock.app.SherlockFragmentActivity.supportInvalidateOptionsMenu(SherlockFragmentActivity.java:144) 
    at de.abc.android.reader.ui.PaperPlayer.setFontSizeUp(PaperPlayer.java:251) 
    at de.abc.android.reader.ui.PaperPlayer.onOptionsItemSelected(PaperPlayer.java:118) 
    at com.actionbarsherlock.app.SherlockFragmentActivity.onMenuItemSelected(SherlockFragmentActivity.java:279) 
    at com.actionbarsherlock.ActionBarSherlock.callbackOptionsItemSelected(ActionBarSherlock.java:587) 
    at com.actionbarsherlock.internal.ActionBarSherlockCompat.onMenuItemSelected(ActionBarSherlockCompat.java:513) 
    at com.actionbarsherlock.internal.view.menu.MenuBuilder.dispatchMenuItemSelected(MenuBuilder.java:738) 
    at com.actionbarsherlock.internal.view.menu.MenuItemImpl.invoke(MenuItemImpl.java:148) 
    at com.actionbarsherlock.internal.view.menu.MenuBuilder.performItemAction(MenuBuilder.java:879) 
    at com.actionbarsherlock.internal.view.menu.ActionMenuView.invokeItem(ActionMenuView.java:510) 
    at com.actionbarsherlock.internal.view.menu.ActionMenuItemView.onClick(ActionMenuItemView.java:145) 
    at android.view.View.performClick(View.java:3110) 
    at android.view.View$PerformClick.run(View.java:11934) 
    at android.os.Handler.handleCallback(Handler.java:587) 
    at android.os.Handler.dispatchMessage(Handler.java:92) 
    at android.os.Looper.loop(Looper.java:132) 
    at android.app.ActivityThread.main(ActivityThread.java:4135) 
    at java.lang.reflect.Method.invokeNative(Native Method) 
    at java.lang.reflect.Method.invoke(Method.java:491) 
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:841) 
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:599) 
    at dalvik.system.NativeStart.main(Native Method) 

ここ

アクションバーを構築するための方法を持って呼ばれていますしかし、私はいつもこの警告を受けて私に考えさせる...

ありがとう！

Answer 1

あなたは、このタイプのメニューが

public boolean onCreateOptionsMenu(Menu menu) { 

     menu.add(0, menuHome, 1, getString(R.string.home)) 
       .setIcon(R.drawable.home) 
       .setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS); 

     menu.add(0, menuAction, 1, getString(R.string.action)) 
       .setIcon(R.drawable.action) 
       .setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS); 

     SubMenu subMenuAdd = menu.addSubMenu(0, menuAdd, 1, 
       getString(R.string.add)).setIcon(R.drawable.add); 
     subMenuAdd.add(0, menuAaddFence, 1, getString(R.string.add_fence)); 
     subMenuAdd.add(0, menuEditFence, 1, getString(R.string.edit_fence)); 
     subMenuAdd.add(0, menuDeleteFence, 1, getString(R.string.delete_fence)); 
     subMenuAdd.add(0, menuShowAllFence, 1, getString(R.string.show_all_fence)); 
     MenuItem menuItem = subMenuAdd.getItem(); 
     menuItem.setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS 
       | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 

     return super.onCreateOptionsMenu(menu); 
    } 

    /** Perform selected functionality in to the menu **/ 
    public boolean onOptionsItemSelected(MenuItem item) { 
     switch (item.getItemId()) { 
     case menuHome: 

      Intent refresh = new Intent(this, HomeActivity.class); 
      startActivity(refresh); 
      this.finish(); 

      break; 

     case menuAction: 
      intent = new Intent(HomeActivity.this, Actionactivity.class); 
      startActivity(intent); 
      break; 

     case menuAaddFence: 
      AddShowDialog(); 
      break; 

     case menuDeleteFence: 
      DeleteFenceDialog(); 

      break; 

     case menuShowAllFence: 
      intent = new Intent(HomeActivity.this, ShowAllFenceActivity.class); 
      startActivity(intent); 

      break; 


     case menuEditFence: 
      EditFenceDialog(); 
      break; 

     default: 
      break; 
     } 
     return super.onOptionsItemSelected(item); 
    } 

SherlockFragmentActivity

速い秋あなたがアクションバーのlibelerプロジェクト を追加し、拡張の活動あなたを呼び出す

を使用してみてください