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listview 滑动item删除 效果(仿QQ)

Android平台开发

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  • 开发语言:Java
  • 实例大小:2.21M
  • 下载次数:39
  • 浏览次数:908
  • 发布时间:2015-07-30
  • 实例类别:Android平台开发
  • 发 布 人:小白菜的北京
  • 文件格式:.zip
  • 所需积分:2
 相关标签: 删除 listview

实例介绍

【实例简介】

【实例截图】



【核心代码】


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package com.baoyz.swipemenulistviewsample;
 
import java.util.List;
 
import android.app.Activity;
import android.content.pm.ApplicationInfo;
import android.graphics.Color;
import android.graphics.drawable.ColorDrawable;
import android.os.Bundle;
import android.util.TypedValue;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
 
import com.baoyz.swipemenulistview.SwipeMenu;
import com.baoyz.swipemenulistview.SwipeMenuCreator;
import com.baoyz.swipemenulistview.SwipeMenuItem;
import com.baoyz.swipemenulistview.SwipeMenuListView;
import com.baoyz.swipemenulistview.SwipeMenuListView.OnMenuItemClickListener;
 
public class DifferentMenuActivity extends Activity {
 
    private List<ApplicationInfo> mAppList;
    private AppAdapter mAdapter;
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_list);
 
        mAppList = getPackageManager().getInstalledApplications(0);
 
        SwipeMenuListView listView = (SwipeMenuListView) findViewById(R.id.listView);
        mAdapter = new AppAdapter();
        listView.setAdapter(mAdapter);
 
        // step 1. create a MenuCreator
        SwipeMenuCreator creator = new SwipeMenuCreator() {
 
            @Override
            public void create(SwipeMenu menu) {
                // Create different menus depending on the view type
                switch (menu.getViewType()) {
                case 0:
                    createMenu1(menu);
                    break;
                case 1:
                    createMenu2(menu);
                    break;
                case 2:
                    createMenu3(menu);
                    break;
                }
            }
 
            private void createMenu1(SwipeMenu menu) {
                SwipeMenuItem item1 = new SwipeMenuItem(
                        getApplicationContext());
                item1.setBackground(new ColorDrawable(Color.rgb(0xE5, 0x18,
                        0x5E)));
                item1.setWidth(dp2px(90));
                item1.setIcon(R.drawable.ic_action_favorite);
                menu.addMenuItem(item1);
                SwipeMenuItem item2 = new SwipeMenuItem(
                        getApplicationContext());
                item2.setBackground(new ColorDrawable(Color.rgb(0xC9, 0xC9,
                        0xCE)));
                item2.setWidth(dp2px(90));
                item2.setIcon(R.drawable.ic_action_good);
                menu.addMenuItem(item2);
            }
             
            private void createMenu2(SwipeMenu menu) {
                SwipeMenuItem item1 = new SwipeMenuItem(
                        getApplicationContext());
                item1.setBackground(new ColorDrawable(Color.rgb(0xE5, 0xE0,
                        0x3F)));
                item1.setWidth(dp2px(90));
                item1.setIcon(R.drawable.ic_action_important);
                menu.addMenuItem(item1);
                SwipeMenuItem item2 = new SwipeMenuItem(
                        getApplicationContext());
                item2.setBackground(new ColorDrawable(Color.rgb(0xF9,
                        0x3F, 0x25)));
                item2.setWidth(dp2px(90));
                item2.setIcon(R.drawable.ic_action_discard);
                menu.addMenuItem(item2);
            }
             
            private void createMenu3(SwipeMenu menu) {
                SwipeMenuItem item1 = new SwipeMenuItem(
                        getApplicationContext());
                item1.setBackground(new ColorDrawable(Color.rgb(0x30, 0xB1,
                        0xF5)));
                item1.setWidth(dp2px(90));
                item1.setIcon(R.drawable.ic_action_about);
                menu.addMenuItem(item1);
                SwipeMenuItem item2 = new SwipeMenuItem(
                        getApplicationContext());
                item2.setBackground(new ColorDrawable(Color.rgb(0xC9, 0xC9,
                        0xCE)));
                item2.setWidth(dp2px(90));
                item2.setIcon(R.drawable.ic_action_share);
                menu.addMenuItem(item2);
            }
        };
        // set creator
        listView.setMenuCreator(creator);
 
        // step 2. listener item click event
        listView.setOnMenuItemClickListener(new OnMenuItemClickListener() {
            @Override
            public void onMenuItemClick(int position, SwipeMenu menu, int index) {
                ApplicationInfo item = mAppList.get(position);
                switch (index) {
                case 0:
                    // open
                    break;
                case 1:
                    // delete
//                  delete(item);
                    mAppList.remove(position);
                    mAdapter.notifyDataSetChanged();
                    break;
                }
            }
        });
 
    }
 
    class AppAdapter extends BaseAdapter {
 
        @Override
        public int getCount() {
            return mAppList.size();
        }
 
        @Override
        public ApplicationInfo getItem(int position) {
            return mAppList.get(position);
        }
 
        @Override
        public long getItemId(int position) {
            return position;
        }
         
        @Override
        public int getViewTypeCount() {
            // menu type count
            return 3;
        }
         
        @Override
        public int getItemViewType(int position) {
            // current menu type
            return position % 3;
        }
 
        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            if (convertView == null) {
                convertView = View.inflate(getApplicationContext(),
                        R.layout.item_list_app, null);
                new ViewHolder(convertView);
            }
            ViewHolder holder = (ViewHolder) convertView.getTag();
            ApplicationInfo item = getItem(position);
            holder.iv_icon.setImageDrawable(item.loadIcon(getPackageManager()));
            holder.tv_name.setText(item.loadLabel(getPackageManager()));
            return convertView;
        }
 
        class ViewHolder {
            ImageView iv_icon;
            TextView tv_name;
 
            public ViewHolder(View view) {
                iv_icon = (ImageView) view.findViewById(R.id.iv_icon);
                tv_name = (TextView) view.findViewById(R.id.tv_name);
                view.setTag(this);
            }
        }
    }
 
    private int dp2px(int dp) {
        return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dp,
                getResources().getDisplayMetrics());
    }
}


标签: 删除 listview

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listview 滑动item删除 效果(仿QQ)

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网友评论

第 1 楼 hellvenus 发表于: 2015-07-31 12:05 46
Good,比较常见的删除方式,代码简单

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