Android Open Source - LitePal Model List Activity

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License

The source code is released under:

Apache License

Java Source Code

/*
 * Copyright (C)  Tony Green, Litepal Framework Open Source Project
 *//from w ww .  j a v  a2 s .co  m
 * 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 org.litepal.litepalsample.activity;

import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;

import org.litepal.LitePalApplication;
import org.litepal.exceptions.ParseConfigurationFileException;
import org.litepal.litepalsample.R;
import org.litepal.litepalsample.adapter.StringArrayAdapter;
import org.litepal.util.Const;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import org.xmlpull.v1.XmlPullParserFactory;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.res.AssetManager;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;

public class ModelListActivity extends Activity {

  private ListView mModelListview;

  private StringArrayAdapter mAdapter;

  private List<String> mList = new ArrayList<String>();

  public static void actionStart(Context context) {
    Intent intent = new Intent(context, ModelListActivity.class);
    context.startActivity(intent);
  }

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.model_list_layout);
    mModelListview = (ListView) findViewById(R.id.model_listview);
    populateMappingClasses();
    mAdapter = new StringArrayAdapter(this, 0, mList);
    mModelListview.setAdapter(mAdapter);
    mModelListview.setOnItemClickListener(new OnItemClickListener() {
      @Override
      public void onItemClick(AdapterView<?> arg0, View view, int index, long id) {
        ModelStructureActivity.actionStart(ModelListActivity.this, mList.get(index));
      }
    });
  }

  private void populateMappingClasses() {
    try {
      XmlPullParserFactory factory = XmlPullParserFactory.newInstance();
      XmlPullParser xmlPullParser = factory.newPullParser();
      xmlPullParser.setInput(getInputStream(), "UTF-8");
      int eventType = xmlPullParser.getEventType();
      while (eventType != XmlPullParser.END_DOCUMENT) {
        String nodeName = xmlPullParser.getName();
        switch (eventType) {
        case XmlPullParser.START_TAG: {
          if ("mapping".equals(nodeName)) {
            String className = xmlPullParser.getAttributeValue("", "class");
            mList.add(className);
          }
          break;
        }
        default:
          break;
        }
        eventType = xmlPullParser.next();
      }
    } catch (XmlPullParserException e) {
      throw new ParseConfigurationFileException(
          ParseConfigurationFileException.FILE_FORMAT_IS_NOT_CORRECT);
    } catch (IOException e) {
      throw new ParseConfigurationFileException(ParseConfigurationFileException.IO_EXCEPTION);
    }
  }

  private InputStream getInputStream() throws IOException {
    AssetManager assetManager = LitePalApplication.getContext().getAssets();
    String[] fileNames = assetManager.list("");
    if (fileNames != null && fileNames.length > 0) {
      for (String fileName : fileNames) {
        if (Const.LitePal.CONFIGURATION_FILE_NAME.equalsIgnoreCase(fileName)) {
          return assetManager.open(fileName, AssetManager.ACCESS_BUFFER);
        }
      }
    }
    throw new ParseConfigurationFileException(
        ParseConfigurationFileException.CAN_NOT_FIND_LITEPAL_FILE);
  }

}

Java Source Code List

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