RibbonMenuView.java

package com.duguang.baseanimation.ui.customview.ribbomenu;

import java.util.ArrayList;

import org.xmlpull.v1.XmlPullParser;

import android.content.Context;
import android.content.res.XmlResourceParser;
import android.os.Parcel;
import android.os.Parcelable;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.AnimationUtils;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TextView;

import com.duguang.baseanimation.R;

public class RibbonMenuView extends LinearLayout {

	private ListView rbmListView;
	private View rbmOutsideView;

	private iRibbonMenuCallback callback;

	private static ArrayList<RibbonMenuItem> menuItems;

	public RibbonMenuView(Context context) {
		super(context);
		load();
	}

	public RibbonMenuView(Context context, AttributeSet attrs) {
		super(context, attrs);
		load();
	}

	private void load() {
		if (isInEditMode())
			return;
		inflateLayout();
		initUi();
	}

	private void inflateLayout() {
		try {
			LayoutInflater.from(getContext()).inflate(R.layout.activity_custom_ribbon_menu, this,
					true);
		} catch (Exception e) {

		}
	}

	private void initUi() {

		rbmListView = (ListView) findViewById(R.id.rbm_listview);
		rbmOutsideView = (View) findViewById(R.id.rbm_outside_view);

		rbmOutsideView.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View v) {
				hideMenu();

			}
		});

		rbmListView.setOnItemClickListener(new OnItemClickListener() {

			@Override
			public void onItemClick(AdapterView<?> parent, View view,
					int position, long id) {

				if (callback != null)
					callback.RibbonMenuItemClick(menuItems.get(position).id);

				hideMenu();
			}

		});

	}

	public void setMenuClickCallback(iRibbonMenuCallback callback) {
		this.callback = callback;
	}

	public void setMenuItems(int menu) {

		parseXml(menu);

		if (menuItems != null && menuItems.size() > 0) {
			rbmListView.setAdapter(new Adapter());

		}

	}

	public void setBackgroundResource(int resource) {
		rbmListView.setBackgroundResource(resource);

	}

	public void showMenu() {
		rbmOutsideView.setVisibility(View.VISIBLE);

		rbmListView.setVisibility(View.VISIBLE);
		rbmListView.startAnimation(AnimationUtils.loadAnimation(getContext(),
				R.anim.rbm_in_from_left));

	}

	public void hideMenu() {

		rbmOutsideView.setVisibility(View.GONE);
		rbmListView.setVisibility(View.GONE);

		rbmListView.startAnimation(AnimationUtils.loadAnimation(getContext(),
				R.anim.rbm_out_to_left));

	}

	public void toggleMenu() {

		if (rbmOutsideView.getVisibility() == View.GONE) {
			showMenu();
		} else {
			hideMenu();
		}
	}

	private void parseXml(int menu) {

		menuItems = new ArrayList<RibbonMenuView.RibbonMenuItem>();

		try {
			XmlResourceParser xpp = getResources().getXml(menu);

			xpp.next();
			int eventType = xpp.getEventType();

			while (eventType != XmlPullParser.END_DOCUMENT) {

				if (eventType == XmlPullParser.START_TAG) {

					String elemName = xpp.getName();

					if (elemName.equals("item")) {

						String textId = xpp.getAttributeValue(
								"http://schemas.android.com/apk/res/android",
								"title");
						String iconId = xpp.getAttributeValue(
								"http://schemas.android.com/apk/res/android",
								"icon");
						String resId = xpp.getAttributeValue(
								"http://schemas.android.com/apk/res/android",
								"id");

						RibbonMenuItem item = new RibbonMenuItem();
						item.id = Integer.valueOf(resId.replace("@", ""));
						item.text = resourceIdToString(textId);
						item.icon = Integer.valueOf(iconId.replace("@", ""));

						menuItems.add(item);

					}

				}

				eventType = xpp.next();

			}

		} catch (Exception e) {
			e.printStackTrace();
		}

	}

	private String resourceIdToString(String text) {

		if (!text.contains("@")) {
			return text;
		} else {

			String id = text.replace("@", "");

			return getResources().getString(Integer.valueOf(id));

		}

	}

	public boolean isMenuVisible() {
		return rbmOutsideView.getVisibility() == View.VISIBLE;
	}

	@Override
	protected void onRestoreInstanceState(Parcelable state) {
		SavedState ss = (SavedState) state;
		super.onRestoreInstanceState(ss.getSuperState());

		if (ss.bShowMenu)
			showMenu();
		else
			hideMenu();
	}

	@Override
	protected Parcelable onSaveInstanceState() {
		Parcelable superState = super.onSaveInstanceState();
		SavedState ss = new SavedState(superState);

		ss.bShowMenu = isMenuVisible();

		return ss;
	}

	static class SavedState extends BaseSavedState {
		boolean bShowMenu;

		SavedState(Parcelable superState) {
			super(superState);
		}

		private SavedState(Parcel in) {
			super(in);
			bShowMenu = (in.readInt() == 1);
		}

		@Override
		public void writeToParcel(Parcel out, int flags) {
			super.writeToParcel(out, flags);
			out.writeInt(bShowMenu ? 1 : 0);
		}

		public static final Parcelable.Creator<SavedState> CREATOR = new Parcelable.Creator<SavedState>() {
			public SavedState createFromParcel(Parcel in) {
				return new SavedState(in);
			}

			public SavedState[] newArray(int size) {
				return new SavedState[size];
			}
		};
	}

	class RibbonMenuItem {

		int id;
		String text;
		int icon;

	}

	private class Adapter extends BaseAdapter {

		private LayoutInflater inflater;

		public Adapter() {
			inflater = LayoutInflater.from(getContext());
		}

		@Override
		public int getCount() {

			return menuItems.size();
		}

		@Override
		public Object getItem(int position) {

			return null;
		}

		@Override
		public long getItemId(int position) {

			return 0;
		}

		@Override
		public View getView(int position, View convertView, ViewGroup parent) {

			final ViewHolder holder;

			if (convertView == null || convertView instanceof TextView) {
				convertView = inflater.inflate(R.layout.activity_custom_ribbon_item, null);

				holder = new ViewHolder();
				holder.image = (ImageView) convertView
						.findViewById(R.id.rbm_item_icon);
				holder.text = (TextView) convertView
						.findViewById(R.id.rbm_item_text);

				convertView.setTag(holder);

			} else {

				holder = (ViewHolder) convertView.getTag();
			}

			holder.image.setImageResource(menuItems.get(position).icon);
			holder.text.setText(menuItems.get(position).text);

			return convertView;
		}

		class ViewHolder {
			TextView text;
			ImageView image;

		}

	}

}