Android Open Source - Common-Library Popup Menu Widget

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License

The source code is released under:

Apache License

Java Source Code

package com.morgan.library.widget;
/*from   www  . j  a  v a  2s  .co  m*/
import java.util.ArrayList;
import java.util.List;

import android.app.Activity;
import android.graphics.drawable.ColorDrawable;
import android.util.DisplayMetrics;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.PopupWindow;
import android.widget.TextView;

import com.morgan.library.R;
import com.morgan.library.model.SpinnerItem;

/**
 * ????View??????????????PopupWindow??????????ListView??
 * 
 * @author Morgan.Ji
 * 
 */
public class PopupMenuWidget {

  private Activity mContext;
  private ListView mListView;
  private PopupWindow mPopupWindow;
  private List<SpinnerItem> mPopupList = new ArrayList<SpinnerItem>();

  public PopupMenuWidget(Activity context) {
    this.mContext = context;
    View view = LayoutInflater.from(context).inflate(
        R.layout.popup_menu_widget_list, null);
    mListView = (ListView) view.findViewById(R.id.list);
    mListView.setAdapter(new PopupListAdapter());
    mListView.setFocusableInTouchMode(true);
    mListView.setFocusable(true);
    DisplayMetrics metrics = new DisplayMetrics();
    mContext.getWindowManager().getDefaultDisplay().getMetrics(metrics);
    int width = 0;
    if (metrics.widthPixels >= 720) {
      width = 220;
    } else {
      width = 180;
    }
    mPopupWindow = new PopupWindow(view, width, LayoutParams.WRAP_CONTENT);
    mPopupWindow.setBackgroundDrawable(new ColorDrawable(
        android.R.color.white));
  }

  public PopupMenuWidget(Activity context, int width) {
    this.mContext = context;
    View view = LayoutInflater.from(context).inflate(
        R.layout.popup_menu_widget_list, null);
    mListView = (ListView) view.findViewById(R.id.list);
    mListView.setAdapter(new PopupListAdapter());
    mListView.setFocusableInTouchMode(true);
    mListView.setFocusable(true);
    mPopupWindow = new PopupWindow(view, width, LayoutParams.WRAP_CONTENT);
    mPopupWindow.setBackgroundDrawable(new ColorDrawable(
        android.R.color.white));
  }

  public void showAsDropDown(View parent) {
    mPopupWindow.showAsDropDown(parent, mContext.getResources()
        .getDimensionPixelSize(R.dimen.pop_xoff), mContext
        .getResources().getDimensionPixelSize(R.dimen.pop_yoff));
    mPopupWindow.setAnimationStyle(R.style.popup_window_menu);
    mPopupWindow.setFocusable(true);
    mPopupWindow.setOutsideTouchable(true);
    mPopupWindow.update();
  }

  public void addItems(List<SpinnerItem> popupList) {
    mPopupList.clear();
    mPopupList.addAll(popupList);
  }

  public void addItem(SpinnerItem popup) {
    mPopupList.add(popup);
  }

  public void dismiss() {
    mPopupWindow.dismiss();
  }

  public void setOnItemClickListener(OnItemClickListener listener) {
    mListView.setOnItemClickListener(listener);
  }

  class PopupListAdapter extends BaseAdapter {

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

    @Override
    public Object getItem(int position) {
      return mPopupList.get(position);
    }

    @Override
    public long getItemId(int position) {
      return 0;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
      ViewHolder holder = null;
      if (convertView == null) {
        holder = new ViewHolder();
        convertView = LayoutInflater.from(mContext).inflate(
            R.layout.popup_menu_widget_list_item, null);
        holder.mImgView = (ImageView) convertView
            .findViewById(R.id.popup_img);
        holder.mTextView = (TextView) convertView
            .findViewById(R.id.popup_txt);
        convertView.setTag(holder);
      } else {
        holder = (ViewHolder) convertView.getTag();
      }
      SpinnerItem popup = mPopupList.get(position);
      if (popup.isHideImg()) {
        holder.mImgView.setVisibility(View.GONE);
      } else {
        holder.mImgView.setVisibility(View.VISIBLE);
        holder.mImgView.setImageResource(popup.getResId());
      }
      holder.mTextView.setText(popup.getText());
      return convertView;
    }

    class ViewHolder {
      public ImageView mImgView;
      public TextView mTextView;
    }
  }

  public void changeItemImage(int position, int resourceId) {
    if (position < 0 || position >= mPopupList.size()) {
      return;
    }
    mPopupList.get(position).setResId(resourceId);
  }
}

Java Source Code List

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