src/jp/gr/java_conf/ofnhwx/olib/base/BaseListFragmentC.java

   1 package jp.gr.java_conf.ofnhwx.olib.base;
   2
   3 import android.database.Cursor;
   4 import android.os.Bundle;
   5 import android.support.v4.app.ListFragment;
   6 import android.support.v4.app.LoaderManager.LoaderCallbacks;
   7 import android.support.v4.content.Loader;
   8 import android.support.v4.widget.CursorAdapter;
   9 import android.view.ViewGroup;
  10 import android.view.ViewParent;
  11 import android.widget.TextView;
  12
  13 /**
  14  * {@link ListFragment}のもと.
  15  * @author yuta
  16  */
  17 public abstract class BaseListFragmentC extends ListFragment implements LoaderCallbacks<Cursor> {
  18
  19     protected CursorAdapter mAdapter;
  20
  21     protected abstract CursorAdapter onCreateAdapter();
  22
  23     @Override
  24     public void onActivityCreated(Bundle savedInstanceState) {
  25         super.onActivityCreated(savedInstanceState);
  26         mAdapter = onCreateAdapter();
  27         setListAdapter(mAdapter);
  28         setListShown(false);
  29         getListView().setFastScrollEnabled(true);
  30     }
  31
  32     /**
  33      * {@link #setEmptyText(CharSequence)}.
  34      * @param text {@link #getText(int)}
  35      */
  36     public void setEmptyText(int text) {
  37         setEmptyText(getText(text));
  38     }
  39
  40     @Override
  41     public void setEmptyText(CharSequence text) {
  42         try {
  43             super.setEmptyText(text);
  44         } catch (IllegalStateException e) {
  45             TextView ev = (TextView)getListView().getEmptyView();
  46             if (ev == null) {
  47                 TextView tv = new TextView(getActivity());
  48                 tv.setText(text);
  49                 tv.setId(android.R.id.empty);
  50                 ViewParent v = getListView().getParent();
  51                 if (v instanceof ViewGroup) {
  52                     ((ViewGroup)v).addView(tv);
  53                 }
  54                 getListView().setEmptyView(tv);
  55             } else {
  56                 ev.setText(text);
  57             }
  58         }
  59     }
  60
  61     public void setHasContextMenu(boolean hasContext) {
  62         if (hasContext) {
  63             registerForContextMenu(getListView());
  64         } else {
  65             unregisterForContextMenu(getListView());
  66         }
  67     }
  68
  69     public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
  70         if (getView() == null) {
  71             return;
  72         }
  73         mAdapter.swapCursor(data);
  74         if (isResumed()) {
  75             setListShown(true);
  76         } else {
  77             setListShownNoAnimation(true);
  78         }
  79     }
  80
  81     public void onLoaderReset(Loader<Cursor> loader) {
  82         mAdapter.swapCursor(null);
  83     }
  84
  85 }