android中listview的item滑动删除效果（已解决listview点击问题）

领导看到iphone上tableview有个滑动删除的效果，要求在android上也实现，搜了下资料，实现起来比较简单，可弄到后面，居然不能点击了，把一篇文章中的代码修改了一下，捣鼓了一番，搞定，下面是代码：

 package com.example.listsildedel;

 import java.util.ArrayList;
 import java.util.List;

 import android.app.Activity;
 import android.content.Intent;
 import android.os.Bundle;
 import android.widget.ListView;

 public class MainActivity extends Activity {

     private ListView mListView;
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
         mListView = (ListView) this.findViewById(R.id.list);
         List<String> list = new ArrayList<String>();
         for(int i=0;i<10;i++){
             list.add("选项"+i);
         }
         //实例化自定义内容适配类
         MyAdapter adapter = new MyAdapter(this, this,list);
         //为listView设置适配
         mListView.setAdapter(adapter);
     }

     public void openActivity(){
         Intent intent  = new Intent(this, TestActivity.class);
         startActivity(intent);
     }

 }

adapter:

 package com.example.listsildedel;

 import java.util.List;

 import android.content.Context;
 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.widget.BaseAdapter;
 import android.widget.Button;
 import android.widget.TextView;

 public class MyAdapter extends BaseAdapter {

     private List<String> arrays = null;
     private Context mContext;
     private Button curDel_btn;
     private float x,ux;
     private MainActivity mActivity;

     public MyAdapter(MainActivity activity, Context mContext, List<String> arrays) {
         this.mContext = mContext;
         this.arrays = arrays;
         mActivity = activity;

     }

     public int getCount() {
         return this.arrays.size();
     }

     public Object getItem(int position) {
         return null;
     }

     public long getItemId(int position) {
         return position;
     }

     public View getView(final int position, View view, ViewGroup arg2) {
         ViewHolder viewHolder = null;
         if (view == null) {
             viewHolder = new ViewHolder();
             view = LayoutInflater.from(mContext).inflate(R.layout.item, null);
             viewHolder.tvTitle = (TextView) view.findViewById(R.id.title);
             viewHolder.btnDel = (Button) view.findViewById(R.id.del);
             view.setTag(viewHolder);
         } else {
             viewHolder = (ViewHolder) view.getTag();
         }
         //换掉了原来listview中的onItemClick
         <span style="font-size:18px;"><strong>view.setOnClickListener(new OnClickListener() {

             public void onClick(View v) {
                 // TODO Auto-generated method stub
                 mActivity.openActivity();
             }
         });</strong></span>

         //为每一个view项设置触控监听
         view.setOnTouchListener(new OnTouchListener() {
             public boolean onTouch(View v, MotionEvent event) {

                 final ViewHolder holder = (ViewHolder) v.getTag();

                 //当按下时处理
                 if (event.getAction() == MotionEvent.ACTION_DOWN) {

 //                    //设置背景为选中状态
 //                    v.setBackgroundResource(R.drawable.mm_listitem_pressed);
                     //获取按下时的x轴坐标
                     x = event.getX();
                     //判断之前是否出现了删除按钮如果存在就隐藏
                     if (curDel_btn != null) {
                         if(curDel_btn.getVisibility() == View.VISIBLE){
                             curDel_btn.setVisibility(View.GONE);
                             return true;
                         }
                     }

                 } else if (event.getAction() == MotionEvent.ACTION_UP) {// 松开处理

                     //设置背景为未选中正常状态
                     //v.setBackgroundResource(R.drawable.mm_listitem_simple);
                     //获取松开时的x坐标
                     ux = event.getX();

                     //判断当前项中按钮控件不为空时
                     if (holder.btnDel != null) {

                         //按下和松开绝对值差当大于20时显示删除按钮，否则不显示

                         if (Math.abs(x - ux) > 20) {
                             holder.btnDel.setVisibility(View.VISIBLE);
                             curDel_btn = holder.btnDel;
                             return true;
                         }
                     }
                 } else if (event.getAction() == MotionEvent.ACTION_MOVE) {//当滑动时背景为选中状态
                     return true;
                     //v.setBackgroundResource(R.drawable.mm_listitem_pressed);

                 } else {//其他模式
                     //设置背景为未选中正常状态
                     //v.setBackgroundResource(R.drawable.mm_listitem_simple);

                 }

                 return false;
             }
         });
         viewHolder.tvTitle.setText(this.arrays.get(position));

         //为删除按钮添加监听事件，实现点击删除按钮时删除该项
         viewHolder.btnDel.setOnClickListener(new OnClickListener() {

             public void onClick(View v) {
                 if(curDel_btn!=null)
                     curDel_btn.setVisibility(View.GONE);
                 arrays.remove(position);
                 notifyDataSetChanged();

             }
         });
         return view;

     }

     final static class ViewHolder {
         TextView tvTitle;
         Button btnDel;
     }
 }

      

代码下载: http://download.csdn.net/detail/wulingbo2005/6691885

转载请注明出处