com.birdv5.ir.ui.home.fragment.SuperAwesomeFragment.java Source code

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Here is the source code for com.birdv5.ir.ui.home.fragment.SuperAwesomeFragment.java

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/*
 * Copyright (C) 2013 Andreas Stuetz <andreas.stuetz@gmail.com>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.birdv5.ir.ui.home.fragment;

import android.content.Intent;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ListView;

import com.actionbarsherlock.app.SherlockFragment;
import com.birdv5.ir.IRecordApp;
import com.birdv5.ir.R;
import com.birdv5.ir.database.ArticlesTable;
import com.birdv5.ir.ui.DetailActivity;
import com.birdv5.ir.utils.adapter.HomeListViewAdapter;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import com.handmark.pulltorefresh.library.PullToRefreshBase;
import com.handmark.pulltorefresh.library.PullToRefreshBase.OnRefreshListener;
import com.handmark.pulltorefresh.library.PullToRefreshBase.OnRefreshListener2;
import com.handmark.pulltorefresh.library.PullToRefreshListView;

public class SuperAwesomeFragment extends SherlockFragment {
    public static final String ARG_TYPE = "TYPE";
    private HomeListViewAdapter adapter;
    private PullToRefreshListView pullToRefreshView;
    private int type;
    private int pos = 0;
    private final static int PAGE_SIZE = 10;

    public static SuperAwesomeFragment newInstance(int position) {
        SuperAwesomeFragment f = new SuperAwesomeFragment();
        Bundle b = new Bundle();
        b.putInt(ARG_TYPE, position);
        f.setArguments(b);
        return f;
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        type = getArguments().getInt(ARG_TYPE);
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment_home_all, null);
        pullToRefreshView = (PullToRefreshListView) view.findViewById(R.id.lstView);
        adapter = new HomeListViewAdapter(this.getActivity());

        pullToRefreshView.setAdapter(adapter);

        pullToRefreshView.setOnRefreshListener(new OnRefreshListener2<ListView>() {
            @Override
            public void onPullDownToRefresh(PullToRefreshBase<ListView> refreshView) {
                pos = 0;
                adapter.clear();
                getData();
                refreshView.onRefreshComplete();
                Log.i("pullToRefreshView", "onPullDownToRefresh:" + refreshView.isRefreshing());
            }

            @Override
            public void onPullUpToRefresh(PullToRefreshBase<ListView> refreshView) {
                getData();
                refreshView.onRefreshComplete();
                Log.i("pullToRefreshView", "onPullUpToRefresh");
            }

        });

        getData();

        pullToRefreshView.getRefreshableView().setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> adapterView, View arg1, int position, long arg3) {
                JsonObject object = adapter.getItem(position - 1);
                Intent intent = new Intent(getActivity(), DetailActivity.class);
                String content = object.get("content").getAsString();
                String title = object.get("title").getAsString();

                intent.putExtra("title", title);
                intent.putExtra("content", content);
                getActivity().startActivity(intent);
            }
        });

        return view;
    }

    private void getData() {
        SQLiteDatabase db = ((IRecordApp) getActivity().getApplication()).getDB();
        String[] columns = { ArticlesTable.Columns.COLUMN_CONTENT };

        String selection = ArticlesTable.Columns.COLUMN_TYPE + "=? " + " limit " + PAGE_SIZE + " offset " + pos;
        String[] selectionArgs = { type + "" };

        Cursor cursor = ArticlesTable.getInstance().query(db, columns, selection, selectionArgs, null);

        cursor.moveToFirst();

        int count = 0;
        while (!cursor.isAfterLast()) {
            String content = cursor.getString(0);
            JsonObject obj = new JsonParser().parse(content).getAsJsonObject();

            adapter.add(obj);
            cursor.moveToNext();
            count++;
        }

        if (count > 0) {
            pos++;
        }

        cursor.close();
        db.close();

    }
}