Android Open Source - TechDissected Settings Adapter

• Back to App/code  ↑

From Project

Back to project page TechDissected.

License

The source code is released under:

Apache License

Java Source Code

package com.pkmmte.techdissected.adapter;
/* w  ww  .ja va  2  s . c  o m*/
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import com.pkmmte.techdissected.R;
import com.pkmmte.techdissected.model.SettingsItem;
import java.util.ArrayList;
import java.util.List;

public class SettingsAdapter extends BaseAdapter {
  // View Types
  public static final int TYPE_HEADER = 0;
  public static final int TYPE_DIVIDER = 1;
  public static final int TYPE_TEXT = 2;
  public static final int TYPE_CHECKBOX = 3;
  public static final int TYPE_MAX_COUNT = 4;

  // Essential Resources
  private List<SettingsItem> mSettings;
  private LayoutInflater mInflater;

  public SettingsAdapter(Context context) {
    this(context, new ArrayList<SettingsItem>());
  }

  public SettingsAdapter(Context context, List<SettingsItem> settings) {
    this.mSettings = settings;
    this.mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
  }

  public void addItem(SettingsItem setting) {
    mSettings.add(setting);
  }

  public void addHeader(String title) {
    mSettings.add(new SettingsItem(SettingsAdapter.TYPE_HEADER, title));
  }

  public void addDivider() {
    mSettings.add(new SettingsItem(SettingsAdapter.TYPE_DIVIDER));
  }

  public SettingsItem getSetting(int id) {
    for(SettingsItem setting : mSettings) {
      if(setting.getID() == id)
        return setting;
    }

    return null;
  }

  @Override
  public boolean isEnabled(int position) {
    return getItemViewType(position) != TYPE_HEADER && getItemViewType(position) != TYPE_DIVIDER;
  }

  @Override
  public int getItemViewType(int position) {
    return mSettings.get(position).getType();
  }

  @Override
  public int getViewTypeCount() {
    return TYPE_MAX_COUNT;
  }

  @Override
  public int getCount() {
    return mSettings.size();
  }

  @Override
  public SettingsItem getItem(int position) {
    return mSettings.get(position);
  }

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

  @Override
  public View getView(int position, View convertView, ViewGroup parent) {
    ViewHolder holder = null;
    SettingsItem mSetting = mSettings.get(position);
    int type = getItemViewType(position);

    if(convertView == null) {
      holder = new ViewHolder();

      switch(type) {
        case TYPE_HEADER:
          convertView = mInflater.inflate(R.layout.settings_header, parent, false);
          holder.txtTitle = (TextView) convertView.findViewById(R.id.txtHeader);
          holder.txtDescription = null;
          holder.imgCheckbox = null;
          break;
        case TYPE_DIVIDER:
          convertView = mInflater.inflate(R.layout.settings_divider, parent, false);
          holder.txtTitle = null;
          holder.txtDescription = null;
          holder.imgCheckbox = null;
          break;
        case TYPE_TEXT:
          convertView = mInflater.inflate(R.layout.settings_text, parent, false);
          holder.txtTitle = (TextView) convertView.findViewById(R.id.txtTitle);
          holder.txtDescription = (TextView) convertView.findViewById(R.id.txtDescription);
          holder.imgCheckbox = null;
          break;
        case TYPE_CHECKBOX:
          convertView = mInflater.inflate(R.layout.settings_checkbox, parent, false);
          holder.txtTitle = (TextView) convertView.findViewById(R.id.txtTitle);
          holder.txtDescription = (TextView) convertView.findViewById(R.id.txtDescription);
          holder.imgCheckbox = (ImageView) convertView.findViewById(R.id.imgCheckbox);
          break;
      }

      convertView.setTag(holder);
    }
    else {
      holder = (ViewHolder) convertView.getTag();
    }

    // Don't edit anything for dividers
    if(type == TYPE_DIVIDER)
      return convertView;

    // Apply title
    holder.txtTitle.setText(mSetting.getTitle());

    // Return prematurely if type is header
    if(type == TYPE_HEADER)
      return convertView;

    // Apply description
    holder.txtDescription.setText(mSetting.getDescription());

    // Set checkbox state if applicable
    if(type == TYPE_CHECKBOX && holder.imgCheckbox != null)
      holder.imgCheckbox.setImageResource(mSetting.isSelected() ? R.drawable.ic_checkbox_on : R.drawable.ic_checkbox_off);

    // Return this row view
    return convertView;
  }

  private class ViewHolder {
    public TextView txtTitle;
    public TextView txtDescription;
    public ImageView imgCheckbox;
  }
}

Java Source Code List

• Back to App/code  ↑