Android高仿QQ消息滑动删除(附源码)

大家都应该使用过QQ吧,他的消息中可以滑动删除功能,我觉得比较有意思,所以模仿写了一个,并且修改了其滑动算法.我先贴几个简单示范图吧

其实主要用的是算法以及对ListView的把控.

一下是适配器的类

package com.fay.adapter;



import java.util.ArrayList;

import java.util.List;

import java.util.Map;



import android.app.Activity;

import android.content.Context;

import android.graphics.Point;

import android.util.Log;

import android.view.LayoutInflater;

import android.view.MotionEvent;

import android.view.View;

import android.view.View.OnClickListener;

import android.view.View.OnTouchListener;

import android.view.ViewGroup;

import android.view.animation.Animation;

import android.view.animation.Animation.AnimationListener;

import android.view.animation.AnimationUtils;

import android.widget.BaseAdapter;

import android.widget.ImageView;

import android.widget.LinearLayout;

import android.widget.ListView;

import android.widget.TextView;

import android.widget.Toast;



import com.fay.activity.MessageActivity;

import com.fay.message.R;



/**

 * the adapter of the ListView

 * @author Fay 

 * {@link [email protected]}

 */

public class ListMessageAdapter extends BaseAdapter {

	private String TAG = "ListMessageAdapter";

	private Context context = null;

	private Holder holder = null;

	private LayoutInflater inflater = null;



	// the last position clicked

	private int mLastPosition = -1;



	// check whether a touch action is finish

	private boolean loadFinish = false;



	// the position of click and move, start and end point

	private Point startPoint, endPoint;



	// the animation of removing the item

	private Animation animation = null;



	// the children item is common

	private final int TYPE_ITEM = 0;



	// the children item is searching

	private final int TYPE_SEARCH = 1;



	// the count of children item's type

	private final int TYPE_COUNT = TYPE_SEARCH + 1;



	// data container

	private List<Map<String, Object>> list = new ArrayList<Map<String, Object>>();



	public ListMessageAdapter(Context context) {

		this.context = context;

		this.inflater = (LayoutInflater) context

				.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

		this.startPoint = new Point();

		this.endPoint = new Point();

		animation = AnimationUtils.loadAnimation(context, R.anim.push_out);

	}



	public void setData(ArrayList<Map<String, Object>> list) {

		this.list = list;

		notifyDataSetChanged();

	}



	public void setDataTemp(List<Map<String, Object>> list) {

		this.list = list;

		notifyDataSetChanged();

	}



	public void clearData() {

		list.clear();

		notifyDataSetChanged();

	}



	public int getCount() {

		return list.size();

	}



	@Override

	public Object getItem(int position) {

		return list.get(position);

	}



	@Override

	public long getItemId(int position) {

		return position;

	}



	@Override

	public int getItemViewType(int position) {

		return position == 0 ? TYPE_SEARCH : TYPE_ITEM;

	}



	@Override

	public int getViewTypeCount() {

		return TYPE_COUNT;

	}



	@Override

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

		int type = getItemViewType(position);

		if (null == convertView) {

			holder = new Holder();

			switch (type) {

			case TYPE_SEARCH:

				convertView = inflater.inflate(R.layout.search, null);

				holder.searchview = (LinearLayout) convertView

						.findViewById(R.id.search);

				break;

			case TYPE_ITEM:

				convertView = inflater

						.inflate(R.layout.list_item_message, null);

				holder.linearlayout = (LinearLayout) convertView

						.findViewById(R.id.message_linear);

				holder.content = (TextView) convertView

						.findViewById(R.id.message_detail);

				holder.delete = (TextView) convertView

						.findViewById(R.id.message_delete);

				break;

			}

			convertView.setTag(holder);

		} else {

			holder = (Holder) convertView.getTag();

		}



		final int chickPosition = position;



		switch (type) {

		case TYPE_SEARCH:

			// hidden the top view

			holder.searchview.setOnClickListener(new OnClickListener() {

				@Override

				public void onClick(View v) {

					MessageActivity.hiddenTop();

				}

			});

			break;

		case TYPE_ITEM:

			holder.content.setText("消息" + list.get(chickPosition).get("index") + ":你好哦，我想你咯");

			final int finalPosition = position;

			if (position == mLastPosition) {

				holder.delete.setVisibility(View.VISIBLE);

			} else {

				holder.delete.setVisibility(View.GONE);

			}



			// 删除

			final View view = holder.linearlayout;



			holder.delete.setOnClickListener(new OnClickListener() {

				@Override

				public void onClick(View v) {



					view.startAnimation(animation);

					animation.setAnimationListener(new AnimationListener() {

						@Override

						public void onAnimationStart(Animation arg0) {

						}



						@Override

						public void onAnimationRepeat(Animation arg0) {

						}



						@Override

						public void onAnimationEnd(Animation arg0) {

							list.remove(chickPosition);

							mLastPosition = -1;

							notifyDataSetChanged();

						}

					});

				}

			});



			holder.linearlayout.setOnTouchListener(new OnTouchListener() {



				public boolean onTouch(View v, MotionEvent event) {

					switch (event.getAction()) {

					case MotionEvent.ACTION_DOWN:

						loadFinish = false;

						startPoint.set((int) event.getX(), (int) event.getY());

						break;

					case MotionEvent.ACTION_MOVE:

						endPoint.set((int) event.getX(), (int) event.getY());

						if (Math.abs(endPoint.x - startPoint.x) > 30) {

							if (loadFinish == false) {

								loadFinish = true;

								if (finalPosition != mLastPosition) {

									mLastPosition = finalPosition;

								} else {

									mLastPosition = -1;

								}

								notifyDataSetChanged();

							} else {

								return true;

							}

							return true;

						}

						if (Math.abs(endPoint.y - startPoint.y) > 30) {

							return false;

						}

						break;

					case MotionEvent.ACTION_UP:

						break;

					}

					return false;

				}

			});



			holder.linearlayout.setOnClickListener(new OnClickListener() {

				@Override

				public void onClick(View v) {

					if (mLastPosition != -1) {

						mLastPosition = -1;

						notifyDataSetChanged();

					} else {

						Toast.makeText(context, "您点击了 -> " + chickPosition, 2000).show();

					}

				}

			});

			break;

		}

		return convertView;

	}



	private class Holder {

		TextView content;

		TextView delete;

		LinearLayout linearlayout;

		LinearLayout searchview;

	}



}

　多余的我不说了,你们直接看源码吧.

  源码下载地址:http://files.cnblogs.com/yinweiliang/Message.zip