org.cirrus.mobi.pegel.ListRiverFragment.java Source code

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Here is the source code for org.cirrus.mobi.pegel.ListRiverFragment.java

Source

package org.cirrus.mobi.pegel;

/*   Copyright (C) 2011   Dominik Helleberg
    
This file is part of pegel-online.
    
pegel-online is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
    
pegel-online is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
    
You should have received a copy of the GNU General Public License
along with pegel-online.  If not, see <http://www.gnu.org/licenses/>.
*/

import android.annotation.TargetApi;
import android.app.Activity;
import android.app.FragmentTransaction;
import android.app.ListFragment;
import android.content.Context;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;

@TargetApi(11)
public class ListRiverFragment extends android.support.v4.app.ListFragment implements RiverCallBack {

    int mCurCheckPosition = 0;
    private AbstractSelectRiver abstractSR;
    private PegelApplication pegelApp;

    //private static ListRiverFragment lfr = null;

    public static ListRiverFragment getInstance(String river, String mpoint, String pnr) {
        //if(lfr == null)
        ListRiverFragment lfr = new ListRiverFragment();
        if (river != null) {
            Bundle args = new Bundle();
            args.putString("river", river);
            args.putString("mpoint", mpoint);
            args.putString("pnr", pnr);
            lfr.setArguments(args);
        }
        return lfr;
    }

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

        getActivity().setProgressBarIndeterminateVisibility(true);
        this.pegelApp = (PegelApplication) getActivity().getApplication();
        if (savedInstanceState != null) {
            // Restore last state for checked position.
            mCurCheckPosition = savedInstanceState.getInt("curChoice", 0);
        }
        this.abstractSR = new AbstractSelectRiver(getActivity(), this);
        abstractSR.getRivers();
    }

    //listView handler
    public void onListItemClick(ListView parent, View v, int position, long id) {
        //delete preferences
        SharedPreferences settings = getActivity().getSharedPreferences("prefs", Context.MODE_WORLD_WRITEABLE);
        SharedPreferences.Editor edit = settings.edit();
        edit.clear();
        edit.commit();

        showDetails(position);
    }

    @Override
    public void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        outState.putInt("curChoice", mCurCheckPosition);
    }

    private void showDetails(int position) {

        getListView().setItemChecked(position, true);

        if (position != mCurCheckPosition) {
            //transit to new Fragment
            MeasurePointFragment mpf = MeasurePointFragment.newInstance(this.abstractSR.rivers[position]);

            android.support.v4.app.FragmentTransaction transaction = getActivity().getSupportFragmentManager()
                    .beginTransaction();

            // Replace whatever is in the fragment_container view with this fragment,
            // and add the transaction to the back stack
            transaction.replace(R.id.MeasurePoints, mpf);
            //transaction.addToBackStack(null);
            // Commit the transaction
            transaction.commit();

            mCurCheckPosition = position;
        }
    }

    @Override
    public void setRivers(String[] rivers) {

        if (rivers != null)
            setListAdapter(
                    new ArrayAdapter<String>(getActivity(), R.layout.list_item, R.id.SequenceTextView01, rivers));
        else {
            Toast.makeText(getActivity(), getResources().getText(R.string.connection_error), Toast.LENGTH_LONG)
                    .show();
            pegelApp.trackEvent("ERROR-Visible", "ShowRivers-3", "Toast", 1);
        }

        getListView().setChoiceMode(ListView.CHOICE_MODE_SINGLE);
        getActivity().setProgressBarIndeterminateVisibility(false);

        if (getArguments() != null && getArguments().getString("river") != null && getListAdapter() != null) {
            int pos = ((ArrayAdapter<String>) (getListAdapter())).getPosition(getArguments().getString("river"));
            this.showDetails(pos);
            this.setSelection(pos);
        }
    }
}