Android Open Source - saostar Tabs Fragment

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License

The source code is released under:
Apache License
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Java Source Code

package net.azyobuzi.azyotter.saostar.activities;
// w w  w  .java 2s  . c om
import jp.ne.hatena.d.shogo0809.widget.SortableListView;
import jp.ne.hatena.d.shogo0809.widget.SortableListView.SimpleDragListener;
import net.azyobuzi.azyotter.saostar.R;
import net.azyobuzi.azyotter.saostar.configuration.Tab;
import net.azyobuzi.azyotter.saostar.configuration.Tabs;
import android.app.ListFragment;
import android.content.Intent;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.TextView;

public class TabsFragment extends ListFragment {
  @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    return inflater.inflate(R.layout.tabs_list, null);
  }

  private int mDraggingPosition = -1;
  private final TabAdapter adapter = new TabAdapter();

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

        setListAdapter(adapter);

        SortableListView lv = (SortableListView)getListView();
        lv.setDragListener(new DragListener());
        lv.setSortable(true);
        lv.setOnItemClickListener(new OnItemClickListener() {
      @Override
      public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
        showDetails(arg2);
      }
        });

      int index = getActivity().getIntent().getIntExtra(TabPreferenceActivity.TAB_INDEX, -1);

        if (index != -1) {
          startActivity(new Intent(getActivity(), TabPreferenceActivity.class)
        .putExtra(TabPreferenceActivity.TAB_INDEX, index)
        .putExtra(MainActivity.CALLED_FROM_AZYOTTER, true));
        }
  }

  @Override
  public void onResume() {
    super.onResume();
    adapter.notifyDataSetChanged(); //????????????
  }

  public void showDetails(int index) {
    if (Tabs.getTabsCount() <= index) {
      showDetails(Tabs.getTabsCount() - 1);
      return;
    }

    startActivity(new Intent(getActivity(), TabPreferenceActivity.class)
      .putExtra(TabPreferenceActivity.TAB_INDEX, index)
      .putExtra(MainActivity.CALLED_FROM_AZYOTTER, true));
  }

  private class TabAdapter extends BaseAdapter {
    @Override
    public int getCount() {
      return Tabs.getTabsCount();
    }

    public Tab getTabItem(int index) {
      return Tabs.get(index);
    }

    @Override
    public Object getItem(int arg0) {
      return getTabItem(arg0);
    }

    @Override
    public long getItemId(int arg0) {
      return arg0;
    }

    @Override
    public View getView(int arg0, View arg1, ViewGroup arg2) {
      TextView re = arg1 != null
        ? (TextView)arg1
        : (TextView)getActivity().getLayoutInflater().inflate(android.R.layout.simple_list_item_activated_1, null);
      Tab t = getTabItem(arg0);
      re.setText(t.getName());
      re.setVisibility(arg0 == mDraggingPosition ? View.INVISIBLE : View.VISIBLE);
      return re;
    }

  }

  private class DragListener extends SimpleDragListener {
    @Override
        public int onStartDrag(int position) {
            mDraggingPosition = position;
            getListView().invalidateViews();
            return position;
        }

        @Override
        public int onDuringDrag(int positionFrom, int positionTo) {
            if (positionFrom < 0 || positionTo < 0
                    || positionFrom == positionTo) {
                return positionFrom;
            }
            Tabs.move(positionFrom, positionTo);
            mDraggingPosition = positionTo;
            getListView().invalidateViews();
            return positionTo;
        }

        @Override
        public boolean onStopDrag(int positionFrom, int positionTo) {
            mDraggingPosition = -1;
            getListView().invalidateViews();
            return super.onStopDrag(positionFrom, positionTo);
        }
  }
}
Java Source Code List
