PullDownView.java

package com.partynetwork.iparty.ishare;

import com.partynetwork.iparty.R;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Color;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.ColorDrawable;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.view.ViewGroup.LayoutParams;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.PopupWindow;
import android.widget.RadioButton;
import android.widget.RelativeLayout;
import android.widget.TextView;

/**
 * 底部菜单栏
 */
public class PullDownView extends PopupWindow implements OnClickListener {

	private View view;

	private Context mContext;
	private ListView pullDownList;
	private PullDownAdapter pullDownAdapter;
	private FilterListener filterListener;

	private RelativeLayout topOne;
	private TextView textOne;
	private ImageView imageOne;
	private RelativeLayout topTwo;
	private TextView textTwo;
	private ImageView imageTwo;
	private RelativeLayout topThree;
	private TextView testThree;
	private ImageView imageThree;
	private RelativeLayout topFour;
	private TextView textFour;
	private ImageView imageFour;

	private View otherLayout;

	private int[] resIds;
	private String[] titleArray;
	private String[] colors;
	private int type;

	private int oldPosition = -1;
	private RadioButton[] rbs;

	/**
	 * 
	 * @param context
	 * @param res
	 * @param str
	 * @param colors
	 * @param type
	 *            0:iparty;1:i分享
	 */
	public PullDownView(Context context, int[] res, String[] str,
			String[] colors, int type) {
		super(context);
		this.mContext = context;
		this.resIds = res;
		this.titleArray = str;
		this.colors = colors;
		this.type = type;
		view = LayoutInflater.from(context).inflate(R.layout.popup_pulldown,
				null);
		initView();
		initDate();
		setListener();
		// 设置SelectPicPopupWindow弹出窗体的宽
		this.setWidth(LayoutParams.FILL_PARENT);
		// 设置SelectPicPopupWindow弹出窗体的高
		this.setHeight(LayoutParams.WRAP_CONTENT);
		// 设置SelectPicPopupWindow弹出窗体可点击
		this.setFocusable(true);
		// 设置SelectPicPopupWindow弹出窗体动画效果
		this.setAnimationStyle(R.style.iparty_pulldownStyle_anima);
		// 实例化一个ColorDrawable颜色为半透明
		ColorDrawable dw = new ColorDrawable(0x00000000);
		// 设置SelectPicPopupWindow弹出窗体的背景
		this.setBackgroundDrawable(dw);
		// 设置SelectPicPopupWindow的View
		setContentView(view);
	}

	/**
	 * 初始化
	 */
	private void initDate() {
		if (this.titleArray.length > 4) {
			textOne.setText(titleArray[0]);
			textOne.setTextColor(Color.parseColor(colors[0]));
			textTwo.setText(titleArray[1]);
			textTwo.setTextColor(Color.parseColor(colors[1]));
			testThree.setText(titleArray[2]);
			testThree.setTextColor(Color.parseColor(colors[2]));
			textFour.setText(titleArray[3]);
			textFour.setTextColor(Color.parseColor(colors[3]));
		}
		if (this.resIds.length == 4) {
			imageOne.setImageResource(resIds[0]);
			imageTwo.setImageResource(resIds[1]);
			imageThree.setImageResource(resIds[2]);
			imageFour.setImageResource(resIds[3]);
		}

		// 初始化显示数据
		String[] array = new String[titleArray.length - 4];
		for (int i = 0; i < titleArray.length - 4; i++) {
			array[i] = titleArray[i + 4];
		}
		rbs = new RadioButton[array.length];
		for (int i = 0; i < array.length; i++) {
			RadioButton radioButton = new RadioButton(mContext);
			radioButton.setTag(i);
			radioButton.setText(array[i]);
			radioButton.setTextColor(Color.BLACK);
			radioButton.setTextSize(15);
			Bitmap a = null;
			radioButton.setButtonDrawable(new BitmapDrawable(a));
			if (type == 0) {
				radioButton
						.setBackgroundResource(R.drawable.menu_pulldown_iparty_item_selector);
			} else {
				radioButton
						.setBackgroundResource(R.drawable.menu_pulldown_share_item_selector);
			}
			radioButton.setChecked(false);
			radioButton.setOnClickListener(new OnClickListener() {
				@Override
				public void onClick(View arg0) {
					if (oldPosition != -1) {
						rbs[oldPosition].setChecked(false);
					}
					oldPosition = (Integer) arg0.getTag();
					rbs[oldPosition].setChecked(true);
					if (filterListener != null) {
						filterListener.choose(oldPosition + 4);
						dismiss();
					}
				}
			});
			rbs[i] = radioButton;
		}

		// 初始化内容适配器
		pullDownAdapter = new PullDownAdapter(array);
		pullDownList.setAdapter(pullDownAdapter);
		pullDownList.setFocusable(true);
	}

	private void initView() {
		topOne = (RelativeLayout) view.findViewById(R.id.pulldown_top_one);
		topOne.setOnClickListener(this);
		textOne = (TextView) view.findViewById(R.id.text_one);
		imageOne = (ImageView) view.findViewById(R.id.image_one);

		topTwo = (RelativeLayout) view.findViewById(R.id.pulldown_top_two);
		topTwo.setOnClickListener(this);
		textTwo = (TextView) view.findViewById(R.id.text_two);
		imageTwo = (ImageView) view.findViewById(R.id.image_two);

		topThree = (RelativeLayout) view.findViewById(R.id.pulldown_top_three);
		topThree.setOnClickListener(this);
		testThree = (TextView) view.findViewById(R.id.text_three);
		imageThree = (ImageView) view.findViewById(R.id.image_three);

		topFour = (RelativeLayout) view.findViewById(R.id.pulldown_top_four);
		topFour.setOnClickListener(this);
		textFour = (TextView) view.findViewById(R.id.text_four);
		imageFour = (ImageView) view.findViewById(R.id.image_four);

		pullDownList = (ListView) view.findViewById(R.id.pulldown_list);

		otherLayout = view.findViewById(R.id.other_layout);
		otherLayout.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View arg0) {
				dismiss();
			}
		});
	}

	/**
	 * 事件监听
	 * 
	 * @param view
	 */
	public void onClick(View view) {
		if (filterListener != null) {
			switch (view.getId()) {
			case R.id.pulldown_top_one:
				filterListener.choose(0);
				break;
			case R.id.pulldown_top_two:
				filterListener.choose(1);
				break;
			case R.id.pulldown_top_three:
				filterListener.choose(2);
				break;
			case R.id.pulldown_top_four:
				filterListener.choose(3);
				break;
			default:
				break;
			}
			if (oldPosition != -1) {
				rbs[oldPosition].setChecked(false);
				oldPosition = -1;
			}
			dismiss();
		}
	}

	/**
	 * 设置监听
	 */
	private void setListener() {
		pullDownList.setOnItemClickListener(new OnItemClickListener() {
			@Override
			public void onItemClick(AdapterView<?> parent, View view,
					int position, long id) {

				if (filterListener != null) {
					filterListener.choose(position + 4);
					dismiss();
				}
			}
		});

	}

	public class PullDownAdapter extends ArrayAdapter<String> {

		public PullDownAdapter(String[] objects) {
			super(mContext, 0, objects);
		}

		public View getView(int position, View convertView, ViewGroup parent) {
			View itemView = convertView;
			if (itemView == null) {
				itemView = rbs[position];
			}
			return itemView;
		}

	}

	/**
	 * 设置回调处理监听
	 * 
	 * @param filterListener
	 */
	public void setFilterListener(FilterListener filterListener) {
		this.filterListener = filterListener;
	}

	public interface FilterListener {
		public abstract void choose(int position);
	}

}