Android Open Source - vanilindy Tab Order Activity

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License

The source code is released under:

Apache License

Java Source Code

/*
 * Copyright (C) 2012 Christopher Eby <kreed@kreed.org>
 */*from   w ww  .  jav a  2 s . co m*/
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

package ch.blinkenlights.android.vanilla;

import android.app.Activity;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;

/**
 * The preferences activity in which one can change application preferences.
 */
public class TabOrderActivity extends Activity implements View.OnClickListener, OnItemClickListener {
  private TabOrderAdapter mAdapter;
  private DragListView mList;

  /**
   * Initialize the activity, loading the preference specifications.
   */
  @Override
  protected void onCreate(Bundle savedInstanceState)
  {
    super.onCreate(savedInstanceState);
    setTitle(R.string.tabs);
    setContentView(R.layout.tab_order);

    mAdapter = new TabOrderAdapter(this);
    DragListView list = (DragListView)findViewById(R.id.list);
    list.setAdapter(mAdapter);
    list.setEditable(true);
    list.setOnItemClickListener(this);
    mList = list;
    load();

    findViewById(R.id.done).setOnClickListener(this);
    findViewById(R.id.restore_default).setOnClickListener(this);
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item)
  {
    if (item.getItemId() == android.R.id.home) {
      finish();
      return true;
    } else {
      return super.onOptionsItemSelected(item);
    }
  }

  @Override
  public void onClick(View view)
  {
    switch (view.getId()) {
    case R.id.done:
      finish();
      break;
    case R.id.restore_default:
      restoreDefault();
      break;
    }
  }

  /**
   * Restore the default tab order and visibility.
   */
  public void restoreDefault()
  {
    mAdapter.setTabIds(LibraryPagerAdapter.DEFAULT_ORDER.clone());
    DragListView list = mList;
    for (int i = 0; i != LibraryPagerAdapter.MAX_ADAPTER_COUNT; ++i) {
      list.setItemChecked(i, true);
    }
    save();
  }

  /**
   * Save tab order and visibility to SharedPreferences as a string.
   */
  public void save()
  {
    int[] ids = mAdapter.getTabIds();
    DragListView list = mList;
    char[] out = new char[LibraryPagerAdapter.MAX_ADAPTER_COUNT];
    for (int i = 0; i != LibraryPagerAdapter.MAX_ADAPTER_COUNT; ++i) {
      out[i] = (char)(list.isItemChecked(i) ? 128 + ids[i] : 127 - ids[i]);
    }

    SharedPreferences.Editor editor = PlaybackService.getSettings(this).edit();
    editor.putString("tab_order", new String(out));
    editor.commit();
  }

  /**
   * Load tab order settings from SharedPreferences and apply it to the
   * activity.
   */
  public void load()
  {
    String in = PlaybackService.getSettings(this).getString(PrefKeys.TAB_ORDER, null);
    if (in != null && in.length() == LibraryPagerAdapter.MAX_ADAPTER_COUNT) {
      char[] chars = in.toCharArray();
      int[] ids = new int[LibraryPagerAdapter.MAX_ADAPTER_COUNT];
      for (int i = 0; i != LibraryPagerAdapter.MAX_ADAPTER_COUNT; ++i) {
        int v = chars[i];
        v = v < 128 ? -(v - 127) : v - 128;
        if (v >= MediaUtils.TYPE_COUNT) {
          ids = null;
          break;
        }
        ids[i] = v;
      }

      if (ids != null) {
        mAdapter.setTabIds(ids);
        DragListView list = mList;
        for (int i = 0; i != LibraryPagerAdapter.MAX_ADAPTER_COUNT; ++i) {
          list.setItemChecked(i, chars[i] >= 128);
        }
      }

      return;
    }

    restoreDefault();
  }

  @Override
  public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3)
  {
    save();
  }
}

Java Source Code List

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