Android 使用NineOldAndroids实现仿微信listview左滑出现剔除itembutton

这是一个使用NineOldAndroids实现仿微信listview左滑出现删除itembutton效果。使用的是Jake Wharton的动画开源库NineOldAndroids。在API3.0（Honeycomb）, SDK新增了一个android.animation包，里面的类是实现动画效果相关的类，通过Honeycomb API，能够实现非常复杂的动画效果，但是如果开发者想在3.0以下使用这一套API, 则需要使用开源框架Nine Old Androids，在这个库中会根据我们运行的机器判断其SDK版本，如果是API3.0以上则使用Android自带的动画类，否则就使用Nine Old Androids库中，这是一个兼容库。而在这里实现的是使用NineOldAndroids这个库，实现这种效果。这个库的下载地址：点击下载。

本文项目源码地址：点击下载

下面来看看部分代码是怎样实现的。

一、先看最终的效果图

二、使用这个listview的适配器RecentAdapter

package com.listview.adapter;import java.util.LinkedList;import android.content.Context;import android.view.LayoutInflater;import android.view.View;import android.view.View.OnClickListener;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.Button;import android.widget.ImageView;import android.widget.TextView;import com.main.entity.RecentItem;import com.main.listviewsideslip.R;import com.view.listview.SwipeListView;public class RecentAdapter extends BaseAdapter {	private LayoutInflater mInflater;	private LinkedList<RecentItem> mData;	private SwipeListView mListView;	private Context mContext;	public RecentAdapter(Context context, LinkedList<RecentItem> data,			SwipeListView listview) {		mContext = context;		this.mInflater = LayoutInflater.from(mContext);		mData = data;		this.mListView = listview;	}	public void remove(int position) {		if (position < mData.size()) {			mData.remove(position);			notifyDataSetChanged();		}	}	public void remove(RecentItem item) {		if (mData.contains(item)) {			mData.remove(item);			notifyDataSetChanged();		}	}	public void addFirst(RecentItem item) {		if (mData.contains(item)) {			mData.remove(item);		}		mData.addFirst(item);		notifyDataSetChanged();	}	@Override	public int getCount() {		return mData.size();	}	@Override	public Object getItem(int position) {		return mData.get(position);	}	@Override	public long getItemId(int position) {		return position;	}	@Override	public View getView(final int position, View convertView, ViewGroup parent) {		final RecentItem item = mData.get(position);		ViewHolder vHolder = null;		if (convertView == null) {			convertView = mInflater.inflate(R.layout.recent_listview_item, null);			vHolder = new ViewHolder();			vHolder.nameTV = (TextView) convertView.findViewById(R.id.recent_list_item_name);			vHolder.numTV = (TextView) convertView.findViewById(R.id.unreadmsg);			vHolder.headIV = (ImageView) convertView.findViewById(R.id.icon);			vHolder.deleteBtn = (Button) convertView.findViewById(R.id.recent_del_btn);						convertView.setTag(vHolder);		}else {			vHolder  = (ViewHolder) convertView.getTag();		}		vHolder.nameTV.setText(item.getName());		vHolder.headIV.setImageResource(item.getHeadImg());				int num = item.getNewNum();		if (num > 0) {			vHolder.numTV.setVisibility(View.VISIBLE);			vHolder.numTV.setText(num + "");		} else {			vHolder.numTV.setVisibility(View.GONE);		}				vHolder.deleteBtn.setOnClickListener(new OnClickListener() {			@Override			public void onClick(View v) {				mData.remove(position);				notifyDataSetChanged();				if (mListView != null)					mListView.closeOpenedItems();			}		});		return convertView;	}		class ViewHolder{		public TextView nameTV;		public TextView numTV;		public ImageView headIV;		public Button deleteBtn;	}}

package com.view.listview;public abstract class BaseSwipeListViewListener implements SwipeListViewListener {    @Override    public void onOpened(int position, boolean toRight) {    }    @Override    public void onClosed(int position, boolean fromRight) {    }    @Override    public void onListChanged() {    }    @Override    public void onMove(int position, float x) {    }    @Override    public void onStartOpen(int position, int action, boolean right) {    }    @Override    public void onStartClose(int position, boolean right) {    }    @Override    public abstract void onClickFrontView(int position);    @Override    public abstract void onClickBackView(int position);    @Override    public abstract void onDismiss(int[] reverseSortedPositions);    @Override    public int onChangeSwipeMode(int position) {        return SwipeListView.SWIPE_MODE_DEFAULT;    }}

package com.main.listviewsideslip;import java.util.Collections;import java.util.LinkedList;import com.listview.adapter.RecentAdapter;import com.main.entity.RecentItem;import com.view.listview.BaseSwipeListViewListener;import com.view.listview.SwipeListView;import android.os.Bundle;import android.widget.TextView;import android.app.Activity;public class MainActivity extends Activity {	private RecentAdapter mAdapter;	private LinkedList<RecentItem> mRecentDatas;	private SwipeListView mRecentListView;	private TextView mEmpty;	@Override	protected void onCreate(Bundle savedInstanceState) {		super.onCreate(savedInstanceState);		setContentView(R.layout.activity_main);				initView(savedInstanceState);	}	private void initView(Bundle savedInstanceState) {		mRecentListView = (SwipeListView) findViewById(R.id.recent_listview);		mRecentDatas = getRecentList();		mAdapter = new RecentAdapter(this, mRecentDatas, mRecentListView);		mRecentListView.setAdapter(mAdapter);				mEmpty = (TextView) findViewById(R.id.empty);		mRecentListView.setEmptyView(mEmpty);		mRecentListView				.setSwipeListViewListener(new BaseSwipeListViewListener() {										@Override					public void onClickFrontView(int position) {											}					@Override					public void onClickBackView(int position) {						mRecentListView.closeOpenedItems();// 关闭打开的项					}					@Override					public void onDismiss(int[] reverseSortedPositions) {						for (int position : reverseSortedPositions) {							mAdapter.remove(position);						}											}				});			}	//数据源	public LinkedList<RecentItem> getRecentList() {		LinkedList<RecentItem> list = new LinkedList<RecentItem>();		nameArray = getResources().getStringArray(R.array.jazzy_effects_ch);		for (int i = 0; i < 20; i++) {						int icon = heads[i];			String name = nameArray[i];			int num = numArray[i];			RecentItem item = new RecentItem(name, icon, num);			list.add(item);		}		Collections.sort(list);// 降序		return list;	}		public static  int[] heads = { R.drawable.h0, R.drawable.h1,		R.drawable.h2, R.drawable.h3, R.drawable.h4, R.drawable.h5,		R.drawable.h6, R.drawable.h7, R.drawable.h8, R.drawable.h9,		R.drawable.h10, R.drawable.h11, R.drawable.h12, R.drawable.h13,		R.drawable.h14, R.drawable.h15, R.drawable.h16, R.drawable.h17,		R.drawable.h18, R.drawable.h19, R.drawable.h20, R.drawable.h21};		public static  int[] numArray = { 21,67,65,8,54,67,23,78,98,54,67,23,67,423,23,67,90,12,34,56,978};		public static String[] nameArray = new String[21];}